Automatic Control Of Iris, Stop, Or Diaphragm Patents (Class 348/363)
  • Patent number: 7995137
    Abstract: An exposure compensation method automatically generates an accurate exposure value to clearly show the profiles of objects in front of a black background or a white background. First, initial edge energy is derived from luminance values for pixels in a digital image having an initial exposure value. Maximum edge energy is obtained by varying an exposure compensation value for the digital image, and an optimal exposure compensation value according to the maximum edge energy is also obtained. If a difference between the maximum edge energy and initial edge energy is larger than a threshold value, a current exposure value is set to the initial exposure value compensated by the optimal exposure compensation value. Otherwise, the initial exposure value is directly designated as a current exposure value.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: August 9, 2011
    Assignee: Himax Technologies, Limited
    Inventor: Jung Chung Hsu
  • Patent number: 7995139
    Abstract: An image pickup apparatus capable of preventing a decline of resolution of a still image while keeping a dynamic range of exposure control. The image pickup apparatus capable of photographing with changing over a moving image and a still image, includes an iris mechanism for changing an amount of light input to an image pickup element by changing an aperture diameter, a filter unit, having a single density or a plurality of densities, for changing the amount of the light input to the image pickup element by its advancing towards and withdrawing from the aperture diameter of the iris mechanism, a unit for driving the iris mechanism and the filter unit independently, and a control unit for setting the filter unit in one of two types of states such as fully covering the aperture diameter of the iris mechanism and fully withdrawing from the aperture diameter in the still image photography.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: August 9, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takeshi Ikeda
  • Patent number: 7995134
    Abstract: At least one exemplary embodiment is directed to an image pickup apparatus that has an external sensor for detecting brightness separately from an image sensor for obtaining an image pickup signal and controls the insertion and removal of a filter into and from an image pickup optical system in accordance with the brightness of the subject, using brightness information obtained from the external sensor and the image pickup signal.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: August 9, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazutoshi Kawada
  • Patent number: 7991280
    Abstract: There is provided an apparatus that includes a receiving unit configured to receive instructions for focus adjustment; an image-pickup unit configured to perform image-pickup of an object image input through a focus lens; a setting unit configured to set a focus detecting area to be used at a time of detection of a focus state of the focus lens; a light control unit configured to control an amount of light incident on the image-pickup unit; and a focus adjusting unit configured to detect a focus signal representing the focus state in the focus detecting area to move the focus lens based on the focus signal and a position of the focus lens corresponding to the focus signal.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: August 2, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroyuki Ogino
  • Patent number: 7978967
    Abstract: An interchangeable lens includes an obtaining unit for obtaining first control information and second control information from the camera body, the first control information being an instruction to control the first drive unit (diaphragm), the second control information being an instruction to control the second drive unit (focus lens, etc), a storage unit for storing the obtained second control information, and a controller for controlling the first drive unit and the second drive unit based on the first and second control information obtained. The second control information (reservation control information) is an instruction to control the second drive unit when the obtaining unit receives the first control information after receiving the second control information.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: July 12, 2011
    Assignee: Panasonic Corporation
    Inventors: Koji Shibuno, Mitsuyoshi Okamoto
  • Patent number: 7965889
    Abstract: An image processing apparatus has an enlargement processing function of displaying an image on an image display unit at a designated enlargement magnification, and a color conversion processing function of changing a designated conversion source color to a conversion destination color. This image processing apparatus determines at least one of the conversion source color and conversion destination color by acquiring color information from a predetermined area in the displayed image. Upon determining one of the conversion source color and conversion destination color, control according to the enlargement magnification of the enlargement processing function is made so as to assure an amount, which is equal to or larger than a predetermined value, of color information included in the predetermined area.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: June 21, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Teruhiko Ueyama
  • Patent number: 7961246
    Abstract: A blade driving device for use in cameras that includes a mechanical shutter blade that openably and closably disposed in front of a CCD, and is capable of blocking light passing through an exposure aperture. The blade driving device also includes a motor that drives the shutter blade, and a control means that drive-controls the motor. In this blade driving device, photography is performed such that the storage of an electric charge starts in the CCD and the closing motion of the shutter blade is completed. Opening energization is applied to the motor in order to allow the shutter blade to pre-perform an opening motion before performing a closing motion whenever a still image is photographed. Thus, the shutter blade always reaches an opened state prior to photography even if the shutter blade is closed without permission by receiving an impulsive force from the outside because of, for example, being dropped. Therefore, photography can be reliably performed.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: June 14, 2011
    Assignee: Nidec Copal Corporation
    Inventor: Nobuaki Watanabe
  • Patent number: 7936393
    Abstract: Maximum and minimum aperture sizes are regulated with regard to a diaphragm in order to secure predetermined optical capability in an optical unit which includes a taking lens and the diaphragm. In a normal taking, the diaphragm is used within a normal taking range from the maximum to the minimum aperture sizes. In the present invention, an aperture size which is larger than the maximum size and a size which is smaller than the minimum size (extra aperture size or extra small size) are respectively set at outside the range that secures the capability. The aperture sizes of the diaphragm at outside the specified range are used at least for one of the following: automatic exposure (AE) adjustment, auto focus (AF) adjustment, electronic zoom, displaying a moving image, taking for recording the moving image, and taking under a low resolution by thinning out pixels.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: May 3, 2011
    Assignee: Fujifilm Corporation
    Inventors: Akihisa Yamazaki, Atsushi Misawa, Shigeru Kondo, Michitaka Nakazawa
  • Patent number: 7934877
    Abstract: A diaphragm blade includes a light-shielding, thin-plate blade base made of laser absorptive resin to regulate an aperture, and a first shaft portion made of laser transmissive resin and provided on one surface of the blade base. The first shaft portion includes a cylindrical member which is welded to the protruding weld portion, a protruding weld portion integrally formed with the blade base, and a recess formed at the back side of the protruding weld portion. The cylindrical member has a first recess defined at one end thereof near the blade base and coming into contact with the protruding weld portion, and a second recess defined at the other end. A contact surface of the protruding weld portion is melted with laser beam transmitted through the cylindrical member, whereby the protruding weld portion is welded to the cylindrical member.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: May 3, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Chikara Aoshima, Eriko Namazue, Makoto Miyawaki
  • Publication number: 20110085074
    Abstract: The image processing apparatus comprises, an image acquisition unit configured to acquire, as an image, a result of imaging, on an image sensor unit, light traveling from an object via an opening of a stop, a control unit configured to control a shape of the opening based on a function which defines a temporal change of the shape of the opening when the image acquisition unit acquires the image, and a detection unit configured to detect a blur state in the image based on the function.
    Type: Application
    Filed: July 31, 2009
    Publication date: April 14, 2011
    Applicant: Canon Kabushiki Kaisha
    Inventors: Tetsuri Sonoda, Mahoro Anabuki
  • Patent number: 7911528
    Abstract: At least one exemplary embodiment is directed to an image pickup apparatus that has an external sensor for detecting brightness separately from an image sensor for obtaining an image pickup signal and controls the insertion and removal of a filter into and from an image pickup optical system in accordance with the brightness of the subject, using brightness information obtained from the external sensor and the image pickup signal.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: March 22, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazutoshi Kawada
  • Patent number: 7907206
    Abstract: There is provided an image pickup apparatus having a simple structure that enables reduction of shutter release time lag and shutter control with highly accurate shutter time.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: March 15, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yasuhiro Toyoda
  • Publication number: 20110043682
    Abstract: A method for assist in focal length detection is adapted to a digital camera having a flash. The method includes the following steps. First, the flash of the digital camera is actuated and an image having a face portion is captured. Afterwards, an exposure feature value of the face portion in the image is calculated. A focus range comparison table is looked up according to the exposure feature value to obtain an initial focus position. Then, a focus procedure is performed according to the initial focus position to obtain a target focal length. After the target focal length is obtained, a flash feature value of the image is further calculated, and a guide number (GN) and a diaphragm value are set according to the flash feature value.
    Type: Application
    Filed: January 5, 2010
    Publication date: February 24, 2011
    Applicant: ALTEK CORPORATION
    Inventors: Chan-Min Chou, Tsung-Pin Lu
  • Publication number: 20110019071
    Abstract: An image pickup apparatus includes a pixel unit divided into at least two regions which generates pixel signals, driving controllers which controls reading of the pixel signals from the regions, a storage unit storing pixel signals for one screen, a timing controller controlling a timing when the pixel signals are read from the storage unit based on a setting value of an input frame rate, and a timing generator which generates a driving signal for performing the reading processes of the pixel signals the regions in parallel in terms of time when the frame rate is larger than a predetermined threshold value and generates a driving signal for performing the reading processes of the pixel signals from the regions in series in terms of time when the frame rate is not larger than the predetermined threshold value, and which supplies the generated driving signal to the driving controllers.
    Type: Application
    Filed: July 16, 2010
    Publication date: January 27, 2011
    Inventor: Ryosuke AMANO
  • Patent number: 7876376
    Abstract: An image pickup apparatus capable of preventing a decline of resolution of a still image while keeping a dynamic range of exposure control. The image pickup apparatus capable of photographing with changing over a moving image and a still image, includes an iris mechanism for changing an amount of light input to an image pickup element by changing an aperture diameter, a filter unit, having a single density or a plurality of densities, for changing the amount of the light input to the image pickup element by its advancing towards and withdrawing from the aperture diameter of the iris mechanism, a unit for driving the iris mechanism and the filter unit independently, and a control unit for setting the filter unit in one of two types of states such as fully covering the aperture diameter of the iris mechanism and fully withdrawing from the aperture diameter in the still image photography.
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: January 25, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takeshi Ikeda
  • Patent number: 7876366
    Abstract: An electronic camera includes an imaging device. The imaging device carries out an exposing operation for exposing an object scene and an amplifying operation for amplifying a raw image signal generated by the exposing operation, according to a set imaging parameter. A CPU selects one program chart satisfying a parameter condition, from a plurality of program charts stored in a flash memory, and extracts three imaging parameters from the selected program chart. The extracted imaging parameters are set to the imaging device. The imaging parameter here includes exposure time, amount of aperture, and AGC gain as parameter elements. In addition, the parameter condition includes an AGC gain condition in that each of three AGC gains defining respectively the three imaging parameters is equal to or less than a predetermined value and an exposure time condition in that three exposure times defining respectively the three imaging parameters are shorter.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: January 25, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kazutaka Yoshizawa, Kohei Fukukawa, Kazuhiro Tsujino
  • Patent number: 7864242
    Abstract: An image sensing apparatus has an image sensing element which accumulates received light as a charge, a mechanical shutter which travels to shield the image sensing element, and a scan unit which makes a scan for starting charge accumulation. The image sensing apparatus executes the scan for starting charge accumulation prior to traveling of the mechanical shutter and controls the scan for starting charge accumulation and traveling of the shutter to serve as a front curtain and a rear curtain of a shutter. Note that a scan pattern setting unit (113b) sets the scan pattern of the charge accumulation start scan based on information associated with a mounted photographing lens.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: January 4, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Namai, Hiroshi Kikuchi
  • Patent number: 7852400
    Abstract: An image pickup apparatus which is capable of preventing light diffraction from being caused by a density step or a thickness step of a filter, thereby preventing degradation of resolution during still image shooting, and securing the dynamic range of exposure control during both moving image shooting and still image shooting. In the image pickup apparatus, an image pickup element converts light incident thereon from a lens into an electric signal. A diaphragm mechanism changes the amount of light incident on the image pickup element. An ND filter covers an aperture of the diaphragm mechanism such that the aperture can be opened and closed, thereby adjusting the amount of light incident on the image pickup element after passing through the aperture.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: December 14, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takeshi Ikeda
  • Patent number: 7839449
    Abstract: Maximum and minimum aperture sizes are regulated with regard to a diaphragm in order to secure predetermined optical capability in an optical unit which includes a taking lens and the diaphragm. In a normal taking, the diaphragm is used within a normal taking range from the maximum to the minimum aperture sizes. In the present invention, an aperture size which is larger than the maximum size and a size which is smaller than the minimum size (extra aperture size or extra small size) are respectively set at outside the range that secures the capability. The aperture sizes of the diaphragm at outside the specified range are used at least for one of the following: automatic exposure (AE) adjustment, auto focus (AF) adjustment, electronic zoom, displaying a moving image, taking for recording the moving image, and taking under a low resolution by thinning out pixels.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: November 23, 2010
    Assignee: Fujifilm Corporation
    Inventors: Akihisa Yamazaki, Atsushi Misawa, Shigeru Kondo, Michitaka Nakazawa
  • Patent number: 7822328
    Abstract: A method for controlling a digital photographing apparatus and an apparatus adopting the method, which include obtaining first information of a subject at a time t1 at a first sensitivity, obtaining second information of the subject at a time t2 that is different from time t1 at a second sensitivity, and obtaining an image of the subject using the first information and the second information, wherein at least one of the obtaining of the first information and the obtaining of the second information is performed in a state in which a position where an image of the subject is formed on a photographing element of the photographing apparatus is maintained constant despite shaking of the photographing apparatus.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: October 26, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-bong Lee, Nyun-woo Nam
  • Patent number: 7784950
    Abstract: An image projecting apparatus has an integrator for generating plural secondary-light-source images for generating illumination light with a uniform intensity; and a variable stop mechanism arranged at or near a position conjugate with the secondary-light-source images. The variable stop mechanism has a base plate having a fixed aperture; and a stop blade which moves across the aperture for changing a quantity of light. The change in the quantity of light passing through said variable stop caused by the movement of said stop blade is greater than a change in a size of an effective region of a stop aperture.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: August 31, 2010
    Assignee: Konica Minolta Opto, Inc.
    Inventor: Yasumasa Sawai
  • Patent number: 7787043
    Abstract: Provided is a lens apparatus in which serial communication and parallel communication between a camera body and the lens apparatus are performed and resumption of the serial communication is accomplished after occurrence of a communication error, and controlling of a controlled object being controlled through the parallel communication is transferred to temporally controlling through the serial communication, in which, by setting a state of the controlled object when the controlling is transferred to controlling through the serial communication, to be coincident with a state during controlling through the parallel communication, the controlled object to be controlled through the parallel communication is not affected by an effect caused due to a communication error in the serial communication.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: August 31, 2010
    Assignee: Fujinon Corporation
    Inventor: Chikatsu Moriya
  • Patent number: 7787020
    Abstract: There is disclosed a digital camera in which an aperture value is regulated between the open aperture value and a predetermined aperture value during acquisition of a movie image. The predetermined aperture value can be determined based on a range of a luminous flux for use in focal detection. The predetermined aperture value can be set, for example, such that the range between the open aperture value and the predetermined aperture value is suitable for a focal detecting operation.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: August 31, 2010
    Assignee: Olympus Imaging Corp.
    Inventor: Yoji Watanabe
  • Patent number: 7787045
    Abstract: A digital camera of the present invention includes a microcomputer 110 having a live view mode controlling so that image data generated by a CMOS sensor 130 or image data obtained by subjecting the image data generated by the CMOS sensor 130 to predetermined processing is displayed on a liquid crystal monitor 150 as a moving image in real time, and the microcomputer 110 controls so that movable mirrors 121a and 121b to enter an optical path of an image pickup optical system after the amount of light from a subject is obtained based on the image data generated by the CMOS sensor 130, a strobe 137 emits light, and measurement results of an AE sensor 133 are obtained. Due to this configuration, in a digital camera that includes a movable mirror and is capable of displaying a subject image in a live view through an electronic viewfinder, the operability thereof can be enhanced.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: August 31, 2010
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Ueda, Kenichi Honjo, Naoto Yumiki, Toshio Makabe, Kenji Maeda, Kaoru Mokunaka, Kazuhiro Ishimaru
  • Patent number: 7787760
    Abstract: A lens aperture-adjustment device of a closed circuit television camera for capable of switching between automatic and manual adjustments of lens aperture is provided. The device includes a geared motor for driving aperture blades of a lens aperture mechanism; a drive circuit for driving the geared motor in response to a first drive signal for automatic adjustment or a second drive signal for manual adjustment; a comparison circuit for making a comparison between a lightness information signal responsive to the imaging environment and a first reference signal and outputting the first drive signal; a differential amplifier to which a manual adjustment signal entered by an operator and a second reference signal for defining the limit value of the drive amount of the geared motor are input, the differential amplifier for outputting the second drive signal; and a selection circuit for connecting the first drive signal or the second drive.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: August 31, 2010
    Assignee: Fujinon Corporation
    Inventor: Koshi Kuwakino
  • Patent number: 7782386
    Abstract: An optical apparatus includes a variable optical-property element, a driving circuit driving the variable optical-property element, and an image sensor. In order to compensate a change of an imaging state caused by at least one factor of temperature, humidity, a manufacturing error, a change of an object distance, and a zoom state, photographing is performed while referring to a look-up table to change driving information provided to the variable optical-property element, and the driving information that the high-frequency component of a photographed image is practically maximized is assumed so that the variable optical-property element is driven by the driving information to perform photographing.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: August 24, 2010
    Assignee: Olympus Corporation
    Inventors: Kimihiko Nishioka, Kazuhito Hayakawa, Kazuya Nishimura, Hisashi Goto
  • Patent number: 7782393
    Abstract: A method for capturing multiple sets of image data with an electronic camera having a shutter and an electronic shutter for selectively allowing light to reach an image sensor comprises opening the shutter and the electronic shutter, allowing light to reach the image sensor for a first exposure time, closing the electronic shutter, reading out pixel data captured during the first exposure time, allowing light to reach the image sensor for a second exposure time, and, reading out pixel data captured during the second exposure time. The method may be used to obtain multiple differently exposed images of a scene for combination into a high dynamic range image.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: August 24, 2010
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Gregory John Ward, Helge Seetzen
  • Publication number: 20100201866
    Abstract: A digital photographing apparatus may include an imaging device which captures an image of a subject using an illumination apparatus that operates using alternating current (AC) power, and a shutter speed derivation unit which derives at least one shutter speed that is n/2 times a reciprocal of the frequency at which the illumination apparatus operates when the frequency at which the illumination apparatus operates is not n/2 times the frame rate of the imaging device, according to a result of comparing the frequency at which the illumination apparatus operates and the frame rate of the imaging device. When using the digital photographing apparatus to photograph, frequency information of the illumination apparatus may be easily obtained and flicker may be prevented by using the frequency information to set the shutter speed.
    Type: Application
    Filed: January 20, 2010
    Publication date: August 12, 2010
    Applicant: Samsung Digital Imaging Co., Ltd.
    Inventors: Jae-hyo Jung, Yong-gi Kim
  • Patent number: 7764322
    Abstract: A testing apparatus (100) for an image capture device (401) includes a liquid crystal device (101). The liquid crystal device (101) includes an array of pixels (102), which may actively or passively be changed from a transparent state to an opaque or semi-opaque state. The array of pixels are capable of segmentation into a plurality of predefined regions (107), which may be columns (108) or rows (208). A liquid crystal device driver (105) is configured to actuate the predefined regions (107), individually and sequentially, in a sweep pattern across the liquid crystal device. The testing apparatus (100) may be used to measure a variety of parameters associated with image capture devices, including exposure duration, continuous shutter frequency, and flash-shutter lag. The testing apparatus (100) is capable of operation in a variety of ambient lighting conditions.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: July 27, 2010
    Assignee: Motorola, Inc.
    Inventors: Fan He, Michael W. Frenzer
  • Patent number: 7762732
    Abstract: A light quantity control device includes: a bottom board having an opening; a first blade, a supporting blade and a second blade linearly moving in opposing directions and controlling light quantity passing through the opening; and a driving lever connected to the set of blades and driving the set of blades by rotation of the driving lever. The driving lever rotates within degrees centering on a phantom line A passing through a rotational center of the driving lever and being parallel with the moving directions of the blades.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: July 27, 2010
    Assignee: Seiko Precision Inc.
    Inventors: Phichet Numnual, Takashi Nakano, Makoto Mikami
  • Patent number: 7760265
    Abstract: An image sensor shutter module for use in an image sensor outputting image data with scanning line by line and a method for controlling the same are provided. The method for controlling a shutter for use in an image sensor includes: opening electronic shutters for every imaging line; opening mechanical shutter after all of the electronic shutters of every imaging line are opened; closing the mechanical shutter after a predetermined exposure time passes; and sequentially carrying out reading line image data of every imaging line with respect to each imaging line.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: July 20, 2010
    Inventors: Hyung-Suk You, Seong-Cheol Byun
  • Patent number: 7760240
    Abstract: Provided is a method of controlling a digital photographing apparatus in which when a shutter release button is pressed while in one of a plurality of still image photographing modes, a still image is photographed according to a photographing condition of the still image photographing mode. If the shutter release button is pressed together with one of a plurality of setting buttons in the still image photographing mode, a moving picture is photographed according to the photographing condition of the still image photographing mode.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: July 20, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-yoon Won, Dong-min Kim
  • Patent number: 7755664
    Abstract: An image pickup apparatus having a function for generating wide dynamic range, synthesized image by synthesizing image signals corresponding to a plurality of frames of different exposure amounts. A correcting section for correcting exposure amounts of at least one image signal of the image signals corresponding to the plurality of frames of different exposure amounts.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: July 13, 2010
    Assignee: Olympus Optical Co., Ltd
    Inventors: Minoru Kakinuma, Hidetoshi Fukuda, Hiroaki Koseki, Takumi Momose, Osamu Inagaki
  • Patent number: 7742695
    Abstract: A camera system for driving a diaphragm by a stepping motor including first and second coils and capable of 2-phase driving, includes a display unit configured to display an image signal, a live view control unit configured to display image signals sequentially read from an image sensor in the display unit, and a control unit configured to set only one of the first and second coils to be in an energized state when the live view control unit displays the image signals in the display unit.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: June 22, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Minoru Hirose
  • Patent number: 7738018
    Abstract: An image capture control method and apparatus thereof is provided. The method includes capturing automatic exposure environmental data by an image capture unit, calculating initial shutter exposure period and initial sensitivity in accordance with the environmental data, and determining in accordance with the specific mode. Under the specific mode, capturing the image based on the initial shutter exposure period and initial sensitivity when the initial shutter exposure period is less than or equal to the predetermined period. Modify parameters for image capture to obtain final shutter exposure period and final sensitivity when the initial shutter exposure period exceeds the predetermined period. Capturing the image with the final shutter exposure period (t?) and processing the captured image with the final sensitivity (ISO?).
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: June 15, 2010
    Assignee: Asia Optical Co., Inc.
    Inventors: Wen-Hung Hsieh, Yu-Ting Lee
  • Patent number: 7738030
    Abstract: An image processing method of performing various image correction processes to a photographed image and printing the photographed image comprises the steps of: inputting image information to which photographing condition information is added; analyzing the characteristic of the input image information; performing an imago correction process of improving image quality to the photographed image on the basis of the characteristic of the analyzed image information; discriminating the photographing condition information added to the photographed image; and determining an image correction process to be performed in a step of performing the image correction process on the basis of the photographing condition information discriminated in the discriminating step, whereby it becomes possible to provide a high quality print-output result of reflecting the intention of a user at a time of photographing.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: June 15, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuji Akiyama, Makoto Torigoe, Manabu Yamazoe, Ryosuke Iguchi, Takashi Fujita
  • Patent number: 7736073
    Abstract: An image-capturing apparatus adapted to receive a detachable lens apparatus having a mechanical shutter includes an image-capturing unit configured to capture an image of a subject, a communication unit configured to enable communication with the lens apparatus, and a control unit configured to perform an image generating operation using a video signal supplied from the image-capturing unit. The control unit controls timing of the image generating operations performed together with a plurality of opening and closing operations of the mechanical shutter on the basis of information received via the communication unit.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: June 15, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yuji Tsuda
  • Patent number: 7738029
    Abstract: The present invention relates to an image-taking apparatus such as a digital camera which is equipped with a release button and shoots a still image when the release button is pressed. It can perform proper metering for still images and reduce a time lag between a half press and the time when it is ready to shoot a still image. The image-taking apparatus has a through image display section which displays a through image which is moving images for display before a half press, a metering section which performs both metering for a through image and metering for a still image before the half press, a distance measuring section which measures distance in response to a half press, and a shooting section which shoots a still image in response to a full press.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: June 15, 2010
    Assignee: Fujifilm Corporation
    Inventor: Koji Kobayashi
  • Patent number: 7733399
    Abstract: A method of acquiring traveling characteristics of rear blades in a camera having an image sensing element including a plurality of pixels. The method comprising acquiring the traveling characteristics of the rear blades based on an image signal output from a preset partial area of the image sensing element, and storing the acquired traveling characteristics (S34, S36), shifting the partial area to a different position along the traveling direction of the rear blades (S38), and updating the traveling characteristics of the rear blades stored in the storage medium, based on an image signal output from the partial area shifted to the different position (S35, S36).
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: June 8, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yuki Totori
  • Publication number: 20100134662
    Abstract: An image capture device (2) includes a sensor (4) having an active area comprising a plurality of pixels (6) and a shutter array (8) for controlling the exposure of individual pixels. The pixels are grouped in a plurality of pixel subsets and are arranged to capture a plurality of time-separated lo-res images, which can be viewed sequentially as a movie or combined to form a hi-res still image.
    Type: Application
    Filed: May 8, 2008
    Publication date: June 3, 2010
    Applicant: ISIS INNOVATION LTD
    Inventor: Gil Bub
  • Publication number: 20100118176
    Abstract: A microshutter array has a frame having a light transmissive portion. Linear microshutter elements extend across the light transmissive portion and in parallel to each other. Each microshutter element has a flat blade extended in a length direction and first and second torsion arms extending outwards from each side of the blade in the length direction, the blade extending across the light transmissive portion. There is at least one electrode associated with each linear microshutter element and extended in the length direction parallel to the microshutter element.
    Type: Application
    Filed: January 21, 2010
    Publication date: May 13, 2010
    Inventors: John N. Border, Herbert J. Erhardt, J. Kelly Lee, Marek W. Kowarz, Robert M. Boysel
  • Patent number: 7708479
    Abstract: An imaging device and a portable information terminal device of the present invention include: a blade driving unit (20) made up of a base plate (21) having an opening portion (21a) serving as an optical path, an infrared light cut filter blade (23) movably supported by the base plate between a receded position displaced from the opening portion and a position facing the opening portion, and a first electromagnetic driving source (26) that drives the infrared light cut filter blade (23); a lens optical system (32, 33, 34) arranged on the optical path passing through the opening portion; an imaging element (42) that images an object through the lens optical system; and a control unit (51) that drives and controls the blade driving unit (20) and the imaging element (42). The control unit drives and controls the first electromagnetic driving source (26) so as to move the infrared light cut filter blade (23) to the receded position when using an infrared light.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: May 4, 2010
    Assignee: Nidec Copal Corporation
    Inventors: Nobuaki Watanabe, Yoshiyuki Ohzeki, Mitsutaka Hidaka
  • Patent number: 7702230
    Abstract: To provide a digital camera capable of causing a focus sensor to detect a focus while outputting to an image sensor image data for providing appropriate exposure after having adjusted an aperture ratio of an aperture in an image capture optical system such that appropriate exposure is achieved. A digital camera divides light from a subject having passed through an aperture into two beams of light; causes one of the beams to enter the image sensor to thus cause the image sensor to capture a subject image; and causes the other beam to enter the focus sensor to thus cause the focus sensor to detect a focus from the other beam of light. The digital camera adjusts an aperture ratio of the aperture such that the quantity of the other beam reaches the minimum quantity of light at or above which the focus sensor can detect a focus.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: April 20, 2010
    Assignee: Eastman Kodak Company
    Inventor: Takayuki Kijima
  • Patent number: 7697059
    Abstract: An apparatus has an image sensing device, and a signal processing device for performing a first image sensing operation for making the image sensing device perform an image sensing operation in an exposure state to obtain a sensed image signal, and a second image sensing operation for making the image sensing device perform an image sensing operation in a non-exposure state to obtain a sensed image signal, and processing the sensed image signal obtained by the first image sensing operation by the sensed image signal obtained by the second image sensing operation. The signal processing device determines in accordance with the image sensing time of the first image sensing operation whether or not the second image sensing operation is performed.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: April 13, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoichi Yamagishi, Makoto Hiramatsu, Keihiro Kurakata
  • Publication number: 20100020189
    Abstract: An image pickup apparatus capable of preventing a decline of resolution of a still image while keeping a dynamic range of exposure control. The image pickup apparatus capable of photographing with changing over a moving image and a still image, includes an iris mechanism for changing an amount of light input to an image pickup element by changing an aperture diameter, a filter unit, having a single density or a plurality of densities, for changing the amount of the light input to the image pickup element by its advancing towards and withdrawing from the aperture diameter of the iris mechanism, a unit for driving the iris mechanism and the filter unit independently, and a control unit for setting the filter unit in one of two types of states such as fully covering the aperture diameter of the iris mechanism and fully withdrawing from the aperture diameter in the still image photography.
    Type: Application
    Filed: October 7, 2009
    Publication date: January 28, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Takeshi Ikeda
  • Patent number: 7648246
    Abstract: A projector includes: an imaging structure that photographs an image projected on a projection object to take a photographed image; an imaging control module that performs exposure adjustment in the imaging structure to attain a preset target exposure; a control module that sets the target exposure in the imaging ctrl module; an angle information acquisition module that obtains angle information representing an inclination of the projector to the projection object; and a storage unit that stores a map representing a variation in target exposure against the angle information. The control module controls the angle information acquisition module to obtain the angle information, refers to the map stored in the storage unit to specify a target exposure corresponding to the obtained angle information, and sets the specified target exposure in the imaging control module.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: January 19, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Noriaki Miyasaka
  • Patent number: 7646977
    Abstract: Methods and Systems are provided to enable automatically taking a series of depth of field bracket photos by varying the f-stop and shutter speed for a particular scene to keep the exposure constant. The method may be practiced on a digital camera which has been equipped with software in accordance with the present invention.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: January 12, 2010
    Assignee: Gateway, Inc.
    Inventor: Michael R. Flannery
  • Patent number: 7626613
    Abstract: Auto focus control processing for still image recording is performed while continuously performing movie recording when an initiation instruction for a still image recording preparation process is issued during movie recording. Movie recording is interrupted to perform still image recording processing only when an initiation instruction for still image recording processing is detected during movie recording. In addition, in the auto focus control for still image recording during movie recording, focus detection is performed within a distance range that is narrower than the distance range during auto focus control performed for normal still image recording.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: December 1, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masaru Kawamura
  • Patent number: 7623775
    Abstract: Maximum and minimum aperture sizes are regulated with regard to a diaphragm in order to secure predetermined optical capability in an optical unit which includes a taking lens and the diaphragm. In a normal taking, the diaphragm is used within a normal taking range from the maximum to the minimum aperture sizes. In the present invention, an aperture size which is larger than the maximum size and a size which is smaller than the minimum size (extra aperture size or extra small size) are respectively set at outside the range that secures the capability. The aperture sizes of the diaphragm at outside the specified range are used at least for one of the following: automatic exposure (AE) adjustment, auto focus (AF) adjustment, electronic zoom, displaying a moving image, taking for recording the moving image, and taking under a low resolution by thinning out pixels.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: November 24, 2009
    Assignee: Fujifilm Corporation
    Inventors: Akihisa Yamazaki, Atsushi Misawa, Shigeru Kondo, Michitaka Nakazawa
  • Patent number: 7612801
    Abstract: Digital cameras are calibrated so that detailed highlights and shadows in scenes being photographed are reproduced in digital images of those scenes by calibrating holographic data obtained from target images at those scenes. In one embodiment the target image is obtained from an actual target having black and white, and optionally gray, target areas; and in another embodiment, the target image is obtained from the scene being photographed. In both embodiments, histographic data is manipulated so that shadow and highlight data spikes are automatically placed in boundary areas by automatically adjusting lens aperture and/or shutter speed prior to taking the desired photograph of the scene. The resulting photograph is adjusted for highlight and shadow details.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: November 3, 2009
    Inventor: Edward Alan Pierce