Variable Intensity Control Patents (Class 396/164)
  • Patent number: 10123401
    Abstract: A method to be implemented by a vehicle capable of communication with a portable electronic device is shown. The vehicle includes an electrical system including a power switch, and an indicating system including a processor, a wireless transmission module and an indicating unit. The method includes: controlling the electrical system to temporarily provide electric power to the indicating system when the power switch is switched from a conductive state to a non-conductive state; determining whether a wireless connection is established between the portable electronic device and the wireless transmission module. When it is determined that the wireless connection is established, activating the indicating unit to output an indication signal.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: November 6, 2018
    Assignee: KWANG YANG MOTOR CO., LTD.
    Inventors: Chen-Sheng Lin, Yi-Yang Tsai, John C. Wang, Ming-San Huang, Li-Hui Chen, Chi-Hui Hsu, Nai-Kun Yeh, Chih-Feng Hsu
  • Patent number: 9973735
    Abstract: A camera apparatus includes a rotatable camera unit; a filter unit which is configured to selectively take at least one of a covering state and a standby state, wherein the covering state covers a light incident portion of the camera unit with a filter and the standby state removes the filter from the light incident portion; a controller which is configured to control a rotation of the camera unit and a state of the filter unit; and a memory which stores posture information including a direction of the camera unit and filter information representing at least one of the covering state and the standby state of the filter unit. The controller controls the direction of the camera unit based on the posture information stored in the memory and controls the filter unit based on the filter information stored in the memory.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: May 15, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Jyouji Wada, Masahito Oka, Yoshihito Urashima
  • Patent number: 9812486
    Abstract: An apparatus is described that includes an image sensor and a light source driver circuit having configuration register space to receive information pertaining to a command to simulate a distance between a light source and an object that is different than an actual distance between the light source and the object.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: November 7, 2017
    Assignee: Google Inc.
    Inventors: Cheng-Yi Andrew Lin, Clemenz Portmann
  • Patent number: 9759987
    Abstract: A stroboscopic device includes a flash discharge tube, a first element for performing switching operation of flash discharge tube, a second element for performing ON control of the first element by an ON operation, and performing OFF control of the first element by an OFF operation, a third element for performing the OFF control of the first element by an ON operation, and performing the ON control of the first element by an OFF operation, and a first circuit for holding the ON operation of the third element for a predetermined period. The first circuit includes a fourth element for holding the ON control of the third element by the ON operation, and a second circuit capable of setting an operation period of an ON operation of the fourth element. This makes it possible to prevent false operation of the first element due to noise with a simple circuit configuration.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: September 12, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Takahiro Ikeda
  • Patent number: 9448108
    Abstract: A measuring and adjusting system and method on uniformity of light intensity of a light source. The measuring and adjusting system on uniformity of light intensity of a light source includes: a light intensity measuring plate; a light source, irradiating light to the light intensity measuring plate; an image acquisition module, acquiring color difference variation image on the light intensity measuring plate; a microprocessor, connected with the image acquisition module and connected with the light source through a control module, wherein the microprocessor compares the color difference variation image with colorimetric criterion internally stored, and obtains the light intensity distribution on the whole surface of the light intensity measuring plate, so as to judge the uniformity situation, and performs adjustment on the light intensity of the light source.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: September 20, 2016
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Yangkun Jing
  • Patent number: 9338347
    Abstract: In a method for adjusting a photographic lamp of an electronic device, the electronic device obtains a preview image from a camera device of the electronic device, and obtains a brightness value of an ambient environment of the electronic device. When a human face is detected in the obtained preview image, the electronic device changes a current output power value of the photographic lamp to be a first output power value, according to the obtained brightness value. When no human face is detected in the obtained preview image, the electronic device changes the current output power value to be a second output power value according to the obtained brightness value.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: May 10, 2016
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Yu-Han Chien, Chao-Yun Yu, Li-Ly Chang
  • Patent number: 9277135
    Abstract: An image-pickup apparatus includes an exposure condition calculator configured to calculate an exposure condition of an image sensor determined by accumulation time of the image sensor, an amplification amount and an aperture value of an image signal, and an image generator configured to generate a high dynamic range image. When the plurality of exposure conditions have equal exposure differences, the exposure condition calculator changes the accumulation time so as to follow a change of the object brightness from a first value to a second value, and the exposure condition calculator calculates the plurality of exposure conditions by fixing the accumulation time and by changing the amplification amount so as to follow a change of the object brightness from a third value smaller than the first value to a fourth value smaller than the second value.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: March 1, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shigeru Ichikawa
  • Patent number: 9167170
    Abstract: There is provided an imaging device including an imaging element that acquires a captured image of a subject, a light emission unit that emits light to the subject, and a control unit that is capable of controlling a timing of exposure performed by the imaging element and a timing of light emission performed by the light emission unit. In a mode in which imaging is performed with a plurality of times of consecutive light emission by the light emission unit, the control unit controls at least one of a timing of the exposure and a timing of the light emission so that light amounts effective for exposure in each imaging are substantially the same.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: October 20, 2015
    Assignee: Sony Corporation
    Inventors: Shunji Okada, Kazuaki Iguchi, Satoshi Shinohara, Yoshitsugu Nomiyama, Naoya Katoh, Yukio Isobe, Yuuji Watanabe
  • Patent number: 9094613
    Abstract: A photographic apparatus with supplemental light adjusting function and the supplemental light adjusting method used in the same are provided. The photographic apparatus comprises a light source and a photographic element. The method comprises steps of: photographing by the photographic element; illuminating by the light source once the operating condition of a default photographing mode is conformed, and reaching a first supplemental light intensity by the light source within a first length of time; completing photographing by the photographic element once the light source reaches a second supplemental light intensity which is greater than the first supplemental light intensity.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: July 28, 2015
    Assignee: BenQ Corporation
    Inventors: Ho-Shih Wu, Chen-Hung Lin, Li-Wei Cheng, Ming-Chih Yuan
  • Publication number: 20150117849
    Abstract: A lighting device includes a base unit arranged on a medium installation face on which a medium is disposed, an arm unit extending upwardly from the base unit, a top unit extending from the arm unit so as to face the medium installation face, a mounting face disposed on the top unit to mount an image capturing unit at a position capable of photographing the medium on the medium installation face, a lighting disposed in the top unit to irradiate the medium installation face, and a lighting control unit configured to adjust an amount of light of the lighting. The lighting control unit sets the amount of light of the lighting to a maximum at the time of photographing and, after the photographing, returns the amount of light to that before the photographing.
    Type: Application
    Filed: February 18, 2014
    Publication date: April 30, 2015
    Applicant: PFU LIMITED
    Inventors: Yuki KASAHARA, Jian LI
  • Patent number: 8994876
    Abstract: A system for photographic exposure via real-time broadcast of lighting parameters. The system includes a light source that emits light at different color temperatures and intensities controlled by a controller. The controller generates light source data that is transmitted to a digital imaging device. The digital imaging device includes a receiver for receiving the signal from the light source and a processor processing the light source data for determining color temperature, intensity, and timing of light emitted by the light source for generating exposure data. The exposure data determines when to commence capturing an image of a desired exposure and color temperature for achieving a desired exposure. The digital imaging device includes a display for displaying the exposure data to a user for allowing the user to select when to actuate the shutter release for capturing the image with the desired color temperature and exposure.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: March 31, 2015
    Assignee: International Business Machines Corporation
    Inventor: Anthony C. Spielberg
  • Patent number: 8929727
    Abstract: An image pickup apparatus that is capable of reducing variation in the color temperature of a subject in a taken image and capable of shooting a more suitable image. The image pickup apparatus can shoot with emitting a light emitting unit. A color temperature acquisition unit acquires information about a color temperature of a light illuminating a subject. An emission control unit controls emission of the light emitting unit. The emission control unit determines emission light amount of the light emitting unit based on a color temperature difference between a color temperature of an illumination light of the light emitting unit and a color temperature based on the information acquired by the color temperature information acquisition unit.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: January 6, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Akira Kubota
  • Patent number: 8810718
    Abstract: A camera assembly including a camera that has an image-capturing device. The camera assembly also includes an illumination device that is coupled to the camera and that is adapted to illuminate a subject when the camera is capturing an image, and a control unit. The illumination device is capable of illuminating in at least two different peak wavelengths. The control unit automatically configures the camera assembly to use one or more of the at least two different wavelengths.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: August 19, 2014
    Assignee: Non Typical, Inc.
    Inventor: Mark O. Cuddeback
  • Patent number: 8810716
    Abstract: An imaging apparatus capable of performing photographing in which a light emitting unit executes main light emission includes a photometric unit that executes photometry, a selection unit that selects a certain area in a photographing screen, and a control unit that determines a main light emission amount of the light emitting unit based on a photometric value acquired by photometry executed by the photometric unit when the light emitting unit executes pre-flash emission and controls, based on a position of the area selected by the selection unit, a light receiving amount of the photometric unit during a photometry period for acquiring the photometric value used for determining the main light emission amount.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: August 19, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Naoyuki Nakagawara
  • Patent number: 8736710
    Abstract: A photographic flash unit comprises a direct flash unit and a bounce flash unit rotatably connected to the direct flash unit. Status and control lines coupled between a hot shoe and each flash unit enable independent triggering and control of each flash unit. The direct and bounce flash units may be a part of a digital camera adapted to make a first test exposure using direct flash illumination and second test exposure using bounce flash illumination, then computing an attenuation factor for compensating a selected flash exposure parameter by dividing the selected parameter by the attenuation factor. Steps in a method embodiment include making a first test image, making a second test image, selecting regions in the first and second test images, computing an attenuation factor from luminosity values for the first and second test images, and compensating settings for a final bounce flash image by the attenuation factor.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: May 27, 2014
    Assignee: International Business Machines Corporation
    Inventor: Anthony C. Spielberg
  • Publication number: 20140099091
    Abstract: Methods for providing a flash management feature (“FMF”) in a camera system include obtaining a flash intensity value calculated for a flash device by a camera, saving the calculated flash intensity value in memory, accepting a user-provided adjustment of the calculated value, saving the adjusted flash intensity value in a memory, and providing, when the camera transmits the calculated value to the flash device for use during image acquisition, the adjusted value to the flash device instead of the calculated value. A communication device to provide a FMF includes a microprocessor configured to obtain a calculated flash intensity value from a camera, a memory, and a user interface configured to display and allow a user to adjust the calculated value. The microprocessor stores the adjusted flash intensity value in memory, and signals the flash device to emit light at the adjusted value during image acquisition by the camera.
    Type: Application
    Filed: September 23, 2013
    Publication date: April 10, 2014
    Inventor: Kevin J. King
  • Publication number: 20130343741
    Abstract: A method includes providing, in a camera system, a flash light including one or more Light Emitting Diodes (LEDs) having color changing ability based on the one or more LEDs being constituted by a combination of semiconductor compounds, and providing a user interface on the camera system to enable a user of the camera system to modify a number of settings on the camera system. The method also includes modifying, through a flash light driver component, an intensity level of the flash light and/or a voltage supplied thereto through a flash light driver circuit of the flash light in accordance with an appropriate modified setting by the user on the user interface. The modification of the voltage supplied to the flash light enables an appropriate modification of a color of a light emitted by the flash light.
    Type: Application
    Filed: June 21, 2012
    Publication date: December 26, 2013
    Applicant: NVIDIA Corporation
    Inventor: Sachin Krishna Nikam
  • Patent number: 8598798
    Abstract: A method and an apparatus for spectrum synthesis for use in a flash unit, wherein the spectrum synthesis includes combining a plurality of emissive light sources in order to provide a combine output beam and producing the output spectrum for the combined output beam at least based on a reference spectrum. The reference spectrum can be obtained by sensing the spectrum of ambient light or selected from a plurality of stored spectra. The flash unit has at least two emissive light sources and each of the light sources can be adjusted relative to each other so that the outputs from the light sources can mimic a selected illumination scenario. It is possible to use a mixture of quantum dots to tailor each light source so that the combined spectra from different light sources can reasonably mimic a number of frequently used illumination scenario.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: December 3, 2013
    Assignee: Core Wireless Licensing S.a.r.l
    Inventor: Johan Bergquist
  • Patent number: 8571401
    Abstract: A control system for controlling power states of a controlled device, such as a lighting device, a special effects device and an in-scene device, in a photographic image-acquisition setting. The control system is configured to detect one or more camera body signals generated as a function of actuation of one or more camera body controls by a user. The control system generates a first power state change signal in response to the detected camera body signal(s) and transmits the power state change signal to the remote device so as to cause the remote device to operate at a first power state. The control system also implements a preset delay and causes the remote device to change from the first power state to a second power state in response to expiration of the preset delay.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: October 29, 2013
    Assignee: Lab Partners Associates, Inc.
    Inventor: James E. Clark
  • Patent number: 8571400
    Abstract: Methods for providing a flash management feature (“FMF”) in a camera system include obtaining a flash intensity value calculated for a flash device by a camera, saving the calculated flash intensity value in memory, accepting a user-provided adjustment of the calculated value, saving the adjusted flash intensity value in a memory, and providing, when the camera transmits the calculated value to the flash device for use during image acquisition, the adjusted value to the flash device instead of the calculated value. A communication device to provide a FMF includes a microprocessor configured to obtain a calculated flash intensity value from a camera, a memory, and a user interface configured to display and allow a user to adjust the calculated value. The microprocessor stores the adjusted flash intensity value in memory, and signals the flash device to emit light at the adjusted value during image acquisition by the camera.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: October 29, 2013
    Inventor: Kevin James King
  • Patent number: 8548316
    Abstract: Provided is an apparatus and method of controlling light intensity of a camera. The method of controlling light intensity of a camera includes generating a code value for correcting a positional error of the camera to store the positional error in a memory, and then, reflecting the code value for correcting the positional error to generate a code value upon auto-focusing. Next, after measuring a distance to a subject through displacement of a camera lens according to the auto-focusing, light intensity of a flash is adjusted according to the distance to the subject.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: October 1, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Choon Bok Lee
  • Publication number: 20130251357
    Abstract: An image pickup apparatus that is capable of reducing variation in the color temperature of a subject in a taken image and capable of shooting a more suitable image. The image pickup apparatus can shoot with emitting a light emitting unit. A color temperature acquisition unit acquires information about a color temperature of a light illuminating a subject. An emission control unit controls emission of the light emitting unit. The emission control unit determines emission light amount of the light emitting unit based on a color temperature difference between a color temperature of an illumination light of the light emitting unit and a color temperature based on the information acquired by the color temperature information acquisition unit.
    Type: Application
    Filed: May 17, 2013
    Publication date: September 26, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Akira Kubota
  • Patent number: 8538250
    Abstract: A control system for communicating with a controlled device, such as a lighting device, a special effects device and an in-scene device, in a photographic image-acquisition setting using a camera body. The control system is configured to detect a preset pattern of actuation of one or more camera body controls by a user. In response to detecting of the preset pattern, the control system either communicates a power state change signal to the controlled device or causes the camera body to enter into a controlled device control mode that changes the functionality of one or more camera body controls from a camera body functionality to a controlled device control functionality, or both. Such a system can allow a photographer to control a controlled device while remaining at the camera body.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: September 17, 2013
    Assignee: Lab Partners Associates, Inc.
    Inventor: James E. Clark
  • Publication number: 20130230305
    Abstract: A flash apparatus comprising at least two flash tubes and at least two energy storage units is presented, wherein each of said at least two energy storage units is being arranged to be configured to strictly correspond to one of the at least two flash tubes for a flash. The flash apparatus is configured to control the amount of energy provided by the at least two energy storage unit(s) to their corresponding flash tube and control the flash duration of the corresponding flash tube dependent of each other, respectively for each flash tube, so as to obtain substantially the same colour temperature from each flash tube for a flash. A method and a computer program product for use in the flash apparatus are also presented.
    Type: Application
    Filed: July 11, 2011
    Publication date: September 5, 2013
    Applicant: PROFOTO AB
    Inventors: Anton Falk, Ulf Carlsson, Bo Dalenius, Göran Marén
  • Patent number: 8515275
    Abstract: It is possible to provide a user-friendly camera. Provided is an illumination device for emitting illumination light for photographing by a camera including: a light emission unit which can emit lights of a plurality of different colors and/or a plurality of different light emission amounts as the illumination light; and a light emission control unit which controls the light emission unit so as to continuously emit the illumination light while changing the color and/or the light emission amount as the time elapses, independently of photographing by the camera.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: August 20, 2013
    Assignee: Nikon Corporation
    Inventors: Kiyosada Machida, Hatsuko Ogasawara
  • Publication number: 20130195435
    Abstract: Embodiments disclosed herein relate to a camera flash filter. In one embodiment, a processor determines an intensity of light to filter through areas of the flash filter based on the lighting of a scene. The processor may determine a color of light to filter though the areas of the flash filter based on the determined intensity of light to filter through the areas of the flash filter.
    Type: Application
    Filed: January 31, 2012
    Publication date: August 1, 2013
    Inventors: Jason Yost, John Mick, Shane D. Voss, Alan P. Lemke
  • Patent number: 8483557
    Abstract: Embodiments disclosed herein relate to a camera flash filter. In one embodiment, a processor determines an intensity of light to filter through areas of the flash filter based on the lighting of a scene. The processor may determine a color of light to filter though the areas of the flash filter based on the determined intensity of light to filter through the areas of the flash filter.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: July 9, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jason Yost, John Mick, Shane D Voss, Alan P Lemke
  • Patent number: 8463119
    Abstract: An image pickup apparatus that is capable of reducing variation in the color temperature of a subject in a taken image and capable of shooting a more suitable image. The image pickup apparatus can shoot with emitting a light emitting unit. A color temperature acquisition unit acquires information about a color temperature of a light illuminating a subject. An emission control unit controls emission of the light emitting unit. The emission control unit determines emission light amount of the light emitting unit based on a color temperature difference between a color temperature of an illumination light of the light emitting unit and a color temperature based on the information acquired by the color temperature information acquisition unit.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: June 11, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Akira Kubota
  • Publication number: 20130094845
    Abstract: A control system for communicating with a controlled device, such as a lighting device, a special effects device and an in-scene device, in a photographic image-acquisition setting using a camera body. The control system is configured to detect a preset pattern of actuation of one or more camera body controls by a user. In response to detecting of the preset pattern, the control system either communicates a power state change signal to the controlled device or causes the camera body to enter into a controlled device control mode that changes the functionality of one or more camera body controls from a camera body functionality to a controlled device control functionality, or both. Such a system can allow a photographer to control a controlled device while remaining at the camera body.
    Type: Application
    Filed: December 3, 2012
    Publication date: April 18, 2013
    Applicant: LAB PARTNERS ASSOCIATES, INC.
    Inventor: Lab Partners Associates, Inc.
  • Publication number: 20130089313
    Abstract: A control system for controlling power states of a controlled device, such as a lighting device, a special effects device and an in-scene device, in a photographic image-acquisition setting. The control system is configured to detect one or more camera body signals generated as a function of actuation of one or more camera body controls by a user. The control system generates a first power state change signal in response to the detected camera body signal(s) and transmits the power state change signal to the remote device so as to cause the remote device to operate at a first power state. The control system also implements a preset delay and causes the remote device to change from the first power state to a second power state in response to expiration of the preset delay.
    Type: Application
    Filed: December 3, 2012
    Publication date: April 11, 2013
    Applicant: LAB PARTNERS ASSOCIATES, INC.
    Inventor: LAB PARTNERS ASSOCIATES, INC.
  • Patent number: 8385735
    Abstract: An illumination device for a camera includes a light source, in which LED chips are supplied with a drive current, for emitting light of a first color at intensity according to the drive current. An encapsulant is disposed in front of each LED chip, for changing an illuminating color of the light. An EEPROM stores a data table for representing a correlation between the illuminating color and the drive current. An illumination control unit obtains first drive current associated with a target color of light for use by referring to the data table, to drive the LED chips with the first drive current. Phosphor in the encapsulant sets color temperature of the light lower upon passage through the encapsulant than upon emission from the LED chips.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: February 26, 2013
    Assignee: FUJIFILM Corporation
    Inventor: Kouhei Awazu
  • Patent number: 8364031
    Abstract: The invention relates to a lighting assembly for an image capturing system. The lighting assembly includes at least one lighting element for generating light and a control system arranged to control the at least one lighting element and to interface with at least one camera of the image capturing system. The control system is arranged for controlling an intensity and a spectrum of the at least one lighting element. The control system is arranged to provide a control for emitting a constant light or a pulsed light with the at least one lighting element. The at least one lighting element includes at least one LED being at least one high CRI white LED.
    Type: Grant
    Filed: September 7, 2009
    Date of Patent: January 29, 2013
    Assignees: Endolab Holding B.V., Imagingete Inc.
    Inventors: William Scott Geffert, Marc Saes, Hubert Johan Marie Robert van Doorne
  • Patent number: 8351779
    Abstract: An image pickup apparatus which is capable of reducing possibility of missing a good moment to take a photo and reducing electric power wasted for strobe shooting. The image pickup apparatus is capable of shooting using a strobe. A motion detector detects an amount of motion of an object of which an image is to be picked up. A camera controller sets a target charge voltage level of a main capacitor based on the detected amount of motion of the object.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: January 8, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takashi Kageyama
  • Patent number: 8351778
    Abstract: A method for adjusting brightness of an image, suitable for an image capturing apparatus with a flash lamp, is provided. In the method, an intensity of a main flash of the flash lamp is raised, and a sensitivity is reduced. When the main flash is fired by the flash lamp, a raw image is captured according to the reduced sensitivity for calculating a brightness mean value. A gain ratio is calculated according to the brightness mean value and a brightness target, so as to use the gain ratio to compensate the brightness of the raw image.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: January 8, 2013
    Assignee: Altek Corporation
    Inventors: Chung-Pin Lu, Yi-Yu Chen
  • Patent number: 8330822
    Abstract: Various embodiments are disclosed for setting a depth camera light source operating temperature in a thermal tuning mode executed during a depth camera manufacturing process. One embodiment of a method includes illuminating a target with light from a light source at a plurality of light source temperatures; for each light source temperature, sensing an intensity of reflected light received at a light sensor through a light filter positioned intermediate the target and the light sensor; approximating a frequency response relationship between a light filter cutoff frequency and a light source emission wavelength based on a comparison of the sensed intensities and stored reference data; generating a temperature set point so that the light source emission wavelength does not overlap the light filter cutoff frequency by more than a predetermined overlap threshold; and programming a temperature controller to control the light source to the temperature set point during depth camera operation.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: December 11, 2012
    Assignee: Microsoft Corporation
    Inventors: Scott McEldowney, Prafulla Masalkar, Yun Fang
  • Patent number: 8326136
    Abstract: A control system for communicating with a controlled device, such as a lighting device, a special effects device and an in-scene device, in a photographic image-acquisition setting using a camera body. The control system is configured to detect a preset pattern of actuation of one or more camera body controls by a user. In response to detecting of the preset pattern, the control system either communicates a power state change signal to the controlled device or causes the camera body to enter into a controlled device control mode that changes the functionality of one or more camera body controls from a camera body functionality to a controlled device control functionality, or both. Such a system can allow a photographer to control a controlled device while remaining at the camera body.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: December 4, 2012
    Assignee: Lab Partners Associates, Inc.
    Inventor: James E. Clark
  • Publication number: 20120294600
    Abstract: An imaging apparatus including a light emitting device includes a determination unit configured to determine a weighting coefficient of each of a plurality of light metering regions, a calculation unit configured to calculate an amount of main flash light of the light emitting device after performing weighting of the light metering value of each of the plurality of light metering regions according to the weighting coefficient determined by the determination unit, and a selection unit configured to select, from the plurality of light metering regions, a reference region which is used when the weighting coefficient of each of the plurality of light metering regions is determined by the determination unit, and the selection unit selects the reference region in such a manner that a light metering region different from a light metering region whose color information acquired by the color information acquisition unit satisfies a particular condition, is preferentially selected.
    Type: Application
    Filed: May 17, 2012
    Publication date: November 22, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Toshifumi Osawa
  • Publication number: 20120294599
    Abstract: A method for adjusting brightness of an image, suitable for an image capturing apparatus with a flash lamp, is provided. In the method, an intensity of a main flash of the flash lamp is raised, and a sensitivity is reduced. When the main flash is fired by the flash lamp, a raw image is captured according to the reduced sensitivity for calculating a brightness mean value. A gain ratio is calculated according to the brightness mean value and a brightness target, so as to use the gain ratio to compensate the brightness of the raw image.
    Type: Application
    Filed: July 27, 2011
    Publication date: November 22, 2012
    Applicant: ALTEK CORPORATION
    Inventors: Chung-Pin Lu, Yi-Yu Chen
  • Publication number: 20120263447
    Abstract: An illumination device and method for illuminating a scene monitored by a camera uses a plurality of light emitting elements and an illumination control unit. The illumination control unit is arranged to individually control the output intensity of the plurality of light emitting elements based on a camera view direction setting, such that illumination is provided in a view direction of the camera.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 18, 2012
    Applicant: AXIS AB
    Inventor: Kent Fransson
  • Publication number: 20120213503
    Abstract: An illumination device performs a method for illuminating a scene monitored by a camera. The illumination device includes a first light emitting source having a first lens arranged so that the first light emitting source, at a first distance from the illumination device, provides illumination essentially within a first area of a predetermined size. A second light emitting source of the illumination device has a second lens arranged so that the second light emitting source, at a second distance from the illumination device, provides illumination essentially within a second area of the predetermined size. The output intensity of the first and the second light emitting source is individually controllable.
    Type: Application
    Filed: February 1, 2012
    Publication date: August 23, 2012
    Applicant: AXIS AB
    Inventors: Christian Gustaffson, Christian Dahlqvist
  • Publication number: 20120200723
    Abstract: An imaging apparatus, which is capable of performing wireless communication with a light emitting apparatus via a wireless communication unit using a radio wave, includes a light metering unit configured to meter light of an object, a calculation unit configured to calculate a main light emission amount of the light emitting apparatus based on a light metering value acquired by metering the light, and a control unit configured to perform control such that at least a part of a communication operation of the wireless communication unit with the light emitting apparatus is performed during a light metering operation for acquiring the light metering value to be used when the calculation unit calculates the main light emission amount.
    Type: Application
    Filed: February 3, 2012
    Publication date: August 9, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Shinichiro Yano
  • Patent number: 8233788
    Abstract: An illumination device for photography which can photograph an image expressing a movement of the object is provided. The device comprises a light emission unit which emits, continuously and at an constant emission amount, an illumination light, and a light emission control unit which controls the emission unit and changes a light emission intensity during the acquisition of a single still image by exposing object light on an imaging unit provided in a photographic device, wherein the light emission control unit, during the acquisition of the single still image, causes the illumination light to emit continuously at a first light emission intensity in a first time period, and causes the illumination light to emit continuously at a second light emission intensity with a lower intensity than the first light emission intensity in a second time period after the elapse of the first time period.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: July 31, 2012
    Assignee: Nikon Corporation
    Inventor: Toshio Sosa
  • Publication number: 20120177352
    Abstract: A method for capturing an improved archival image using an electronic image capture device having a flash, comprising: capturing at least two preview images of a scene at different capture times using the image capture device; determining a scene brightness; using a processor to analyze the captured preview images to determine a motion velocity for the scene; determining a flash exposure setting and an ambient exposure setting responsive to a ratio between the determined scene brightness and the determined motion velocity; and capturing an archival image using the determined flash exposure setting and the determined ambient exposure setting.
    Type: Application
    Filed: January 10, 2011
    Publication date: July 12, 2012
    Inventors: Bruce Harold Pillman, John Norvold Border, Robert Paul Cloutier, Richard Bruce Wheeler
  • Patent number: 8218963
    Abstract: Using photographic flash for candid shots often results in an unevenly lit scene, in which objects in the back appear dark. A spatially adaptive photographic flash (100) is disclosed, in which the intensity of illumination (21, 23) varies depending on the depth and reflectivity (30, 101) of features in the scene. Adaption to changes in depth are used in a single-shot method. Adaption to changes in reflectivity are used in a multishot method. The single-shot method requires only a depth image (30), whereas the multi-shot method requires at least one color image (40) in addition to the depth data (30).
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: July 10, 2012
    Assignee: ETH Zuerich
    Inventors: Rolf Adelsberger, Markus Gross, Marc Levoy, Remo Ziegler
  • Patent number: 8208804
    Abstract: An imaging apparatus includes a light metering unit, a setting unit configured to set an exposure condition including exposure time and an aperture value at a time of flash photography based on a result of light metering by the light metering unit, and a first calculation unit configured to calculate an amount of light emission by a light emission unit to perform flash photography under the set exposure condition based on the result of light metering, wherein, when a first amount of light emission to perform flash photography under a first exposure condition is larger than a maximum amount of light emission that can be achieved by the light emission unit, the setting unit sets a second exposure condition having shorter exposure time and a smaller aperture value than the first exposure condition, and the first calculation unit calculates a second amount of light emission smaller than the maximum amount of light emission.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: June 26, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takaaki Fukui
  • Publication number: 20120128340
    Abstract: A camera-based mobile communication device includes a light sensor, a camera module, a flashlight, and a micro-processing unit (MPU). The light sensor is operable to detect a brightness value of an external light source. The camera module is operable to photograph an image. The flashlight is operable to generate a flash. The MPU is electrically connected to the light sensor, the camera module, and the flashlight. The MPU includes a comparison module, a face recognizing module, and a flashlight control module. The comparison module is operable to compare the brightness value with a threshold brightness icy value. The face recognizing module is operable to determine whether there exists a facial feature in the image. The flashlight control module is operable to turn on the flashlight when the detected brightness value is greater than the threshold brightness value and the facial feature is recognized from the image.
    Type: Application
    Filed: December 29, 2010
    Publication date: May 24, 2012
    Applicant: INVENTEC CORPORATION
    Inventor: Kun-Hui LAI
  • Patent number: 8160383
    Abstract: A tone correcting apparatus includes: a first determination unit that determines which one of first brightness levels that are previously defined a focused region corresponds to, the focused region being selected from among a plurality of block regions that are set to cover an entire area of the image; a second determination unit that determines which one of second brightness levels that are previously defined an adjacent block region corresponds to, the adjacent block region being at least one of the block regions that is adjacent to the focused region; and a correction unit that corrects a brightness of pixels included in the focused region based on a combination of the first brightness level determined by the first determination unit and the second brightness level determined by the second determination unit.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: April 17, 2012
    Assignee: Casio Computer Co., Ltd.
    Inventor: Yoshitsugu Manabe
  • Publication number: 20120082446
    Abstract: The illumination apparatus includes a first light source and a second light source configured to generate light in wavelength bands required for at least two illumination modes; a dichroic mirror configured to transmit light in a predetermined band from the first light source, to transmit light in the predetermined band from the second light source while reflecting light that is outside the predetermined band in the direction of the optical axis of light from the first light source, and to combine the light from the first light source and the light from the second light source; and a control unit configured to control the illumination states of the first light source and the second light source.
    Type: Application
    Filed: September 19, 2011
    Publication date: April 5, 2012
    Applicant: OLYMPUS CORPORATION
    Inventor: Katsunori Kumai
  • Patent number: 8145051
    Abstract: An image pickup apparatus which is capable of reducing possibility of missing a good moment to take a photo and reducing electric power wasted for strobe shooting. The image pickup apparatus is capable of shooting using a strobe. A motion detector detects an amount of motion of an object of which an image is to be picked up. A camera controller sets a target charge voltage level of a main capacitor based on the detected amount of motion of the object.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: March 27, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takashi Kageyama
  • Publication number: 20120039592
    Abstract: A video camera supplementary white light control method used in a video camera having installed therein a microcontroller, an image pickup device, a light sensor and a filter for controlling the operation of a supplementary lighting device that may be installed in the video camera or disposed outside the video camera. The method is to let the wavelengths beyond the overlapped area of the wavelength range sensed by the image pickup device and the wavelength range of the white light emitted by the supplementary lighting device be removed by the filter, so that the light sensor can receive a predetermined wavelength of light and compute the luminance of the received light, and the microcontroller can compare the luminance data to a reference data and then control the operation of the supplementary lighting device subject to the comparison result.
    Type: Application
    Filed: August 15, 2010
    Publication date: February 16, 2012
    Applicant: NEOTECH PHOTOELECTRIC INC.
    Inventors: Hueng-Lu Chou, Szu-Chih Lin