Having Photocell Optical Path Structure Patents (Class 396/162)
  • Patent number: 11375597
    Abstract: A control system for underwater diving lights utilizes sounds of specific frequency emitted by action of a diver to control one or more remotely positioned diving lights.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: June 28, 2022
    Assignee: Light & Motion Industries
    Inventors: David W. Tolan, Brooks P. Lame, Joseph G. Goldman, Devin P. McKee, Daniel T. Emerson
  • Patent number: 10715791
    Abstract: A virtual eyeglass set may include a frame, a first virtual lens and second virtual lens, and a processor. The frame may mount onto a user's head and hold the first virtual lens in front of the user's left eye and the second virtual lens in front of the user's right eye. A first side of each lens may face the user and a second side of each lens may face away from the user. Each of the first virtual lens and the second virtual lens may include a light field display on the first side, and a light field camera on the second side. The processor may construct, for display on each of the light field displays based on image data received via each of the light field cameras, an image from a perspective of the user's respective eye.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: July 14, 2020
    Assignee: GOOGLE LLC
    Inventors: Samuel Mark Matson, Dominik Philemon Kaeser
  • Patent number: 8891954
    Abstract: A device for detachably coupling with a camera. The device includes a mount configured to detachably couple with a hot shoe of the camera. The mount includes a resilient retaining feature protruding from a bottom surface of the mount and configured to physically contact a bottom surface of the hot shoe such that the mount is pushed upwards within the hot shoe to securely retain the mount within the hot shoe.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: November 18, 2014
    Assignee: ExpoImaging, Inc.
    Inventors: John B. Baker, Erik Sowder
  • Patent number: 7697835
    Abstract: An imaging apparatus includes an emission device for illuminating a subject, a preliminary emission control device for controlling preliminary emission before photographing, a photometry device for measuring a reflected light volume from the subject in the preliminary emission so as to obtain a photometric result, and a main emission control device for controlling main emission when photographing, the main emission control device has a first emission control for conducting emission by adjusting emission volume by using the photometric result, and a second emission control for conducting emission until the reflected light volume from the subject reaches a predetermined volume, the main emission control device conducts an emission control by either the first emission control or the second emission control according to the photometric result.
    Type: Grant
    Filed: June 5, 2007
    Date of Patent: April 13, 2010
    Assignee: Ricoh Company, Ltd.
    Inventor: Yoshiyuki Sasaki
  • Patent number: 7359632
    Abstract: A flash apparatus or an image capture apparatus includes a charging unit, configured to boost a voltage of an electric source and a control unit, configured to calculate the sum of the light emission amount within a predetermined period of time. The control unit reduces the temperature rise of components which generate heat due to the continuous light emission when the sum of the light emission amount reaches a predetermined value.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: April 15, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kei Tohyama
  • Patent number: 6636700
    Abstract: A lens-fitted photo film unit is pre-loaded with photo film, and is a flash built-in type. A booster circuit boosts power source voltage to obtain high voltage. A main capacitor stores charge at the high voltage. A flash discharge tube is connected with the main capacitor, and emits flash light by discharge at the high voltage. A trigger circuit triggers the discharge of the flash discharge tube in response to an exposing operation. A main circuit board has the booster circuit and the trigger circuit mounted thereon. A subsidiary circuit board is connected with the main circuit board, and has a flash quenching circuit mounted thereon. The flash quenching circuit operates in an auxiliary manner, and automatically adjusts the amount of the flash light.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: October 21, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hirofumi Katsura, Takashi Imamura
  • Patent number: 5974273
    Abstract: A method and apparatus for activating a remote light source in synchronization with an indication provided from a camera. A transducer is coupled to the external electrical connector of a conventional camera in order to convert the electrical signals that are output from the camera into an alternative form (e.g., optical signals). A different transducer is coupled to the external electrical connector of a remote light source, such as a photographic strobe. The light source transducer receives the signal from the camera transducer and converts the signal back into one or more conventional electrical signals to activate the remote light source. A light source activation signal and a light source modulation signal are multiplexed onto a single communication channel. A first indication is provided on the communication channel to activate the remote light source (i.e., cause the light source to emit light).
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: October 26, 1999
    Assignee: Light & Motion Industries, Inc.
    Inventors: Eric Larkin, Michael Topolovac
  • Patent number: 5881326
    Abstract: A shutter apparatus is provided wherein openings for defining a secondary aperture are formed in respective shutter blades, such that an amount of light transmitted through the secondary aperture is detected, and the drive force for driving the shutter blades is changed so that the amount of the received amount increases in the opening stroke according to a predetermined function. When the integrated quantity of the received light reaches a threshold value, the movement of the shutter blades is reversed, and the shutter speed is determined based on the integrated light quantity obtained upon completion of shifting to the closing stroke. Thus, variations in the exposure amount that occur upon reversal of the shutter blades are canceled in the closing stroke.
    Type: Grant
    Filed: September 4, 1997
    Date of Patent: March 9, 1999
    Assignee: RIC Company Ltd.
    Inventor: Yoshiaki Sakamoto