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| Number | Title | Issue Date |
| 8126323 | Method and apparatus for radiance capture by multiplexing in the frequency domain An external mask-based radiance camera may be based on an external, non-refractive mask located in front of the main camera lens. The mask modulates, but does not refract, light. The camera multiplexes radiance in the frequency domain by optically mixing different s... | 02/28/2012 |
| 8019215 | Method and apparatus for radiance capture by multiplexing in the frequency domain An external mask-based radiance camera may be based on an external, non-refractive mask located in front of the main camera lens. The mask modulates, but does not refract, light. The camera multiplexes radiance in the frequency domain by optically mixing different s... | 09/13/2011 |
| 7565076 | Lens module with grating A lens module (100) includes a barrel (10), a lens (20), an image sensor module (30) and a grating (22). The lens is received in the barrel for focusing optical signals. The image sensor module is installed on an end of the barrel ... | 07/21/2009 |
| 6724988 | Lens-fitted photo film unit having aperture stop device A lens-fitted photo film unit is pre-loaded with photo film. A photometric circuit measures object brightness of a photographic object, and determines which of high brightness or low brightness the object brightness is according to comparison with a predetermined re... | 04/20/2004 |
| 6397011 | Camera with automatic stop change device A first light guide and a second light guide are attached to a flash charge switch. Each light guide is arranged in a direction where the flash charge switch is slid. If the flash charge switch is in an OFF position, the first light guide transmits light ... | 05/28/2002 |
| 6137958 | Camera In a camera having a camera body part and a lens barrel part, an optical filter arranged to be rotatable around an axis located inside a lens optical path derived from the lens barrel part (for example, around an axis substantially parallel with an optica... | 10/24/2000 |
| 6070021 | Controller for controlling stoppage-timing of application of voltage to electro-developing recording medium A controller controls a termination time of an application of a voltage to an electro-developing recording medium such that an image can be recorded and developed with optimum contrast. The controller has a power source for applying a voltage to the mediu... | 05/30/2000 |
| 5881326 | Shutter apparatus and camera apparatus 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 bl... | 03/09/1999 |
| 5737648 | Photometric device for a camera A photometric device, to measure light incident from a photographic lens of a camera, which can perform accurate photometry, independently of the direction of polarization of the incident light. The photometric device is provided with a first semi-transpa... | 04/07/1998 |
| 5715480 | Remote control camera using optical signal A camera body has at least one opening formed in a front position thereof for receiving optical information about a subject. A remote control light sensor is provided within the camera body to receive a remote control light signal emitted from an external... | 02/03/1998 |
| 5602621 | Film package and method A film package including sheets of imaging media or film sandwiched between upper and lower stiffeners and enclosed by an envelope. Adhesive strips secure the stiffeners together at overlapping tabs formed on opposite sides of the stiffeners. The stiffene... | 02/11/1997 |
| 5331368 | Photomicrographic apparatus A photomicrographic apparatus, which takes a picture of an enlarged image of a specimen observed under a microscope, causes filter insert/remove means to insert a light intensity-reducing filter in the photometric optical path to a light-receiving element... | 07/19/1994 |
| 5278607 | Photometering device in single lens reflex camera A photometering device in a single lens reflex camera having a photometering device mounting portion on a magnifier of a finder optical system, and a photometering element which is mounted to the photometering device mounting portion, including a substrat... | 01/11/1994 |
| 4922280 | Infrared filter cover plate for autofocus camera A filter plate for an infrared range finder in a camera, which has a flat front surface and transmits infrared but absorbs visible radiation. Thereby, the range finder is protected from dirt and scratches and noise from visible radiation is reduced. It is... | 05/01/1990 |
| 4900131 | Adjustable photographic device An adjustable photographic device includes a light transmission element for allowing light from an object to be photographed to pass therethrough, and light sources positioned around the periphery of the light transmission element for introducing light in... | 02/13/1990 |
| 4896182 | Camera with changeable focal length A camera with a taking lens system changeable in focal length between a relatively long and a relatively short focal length, which has an exposure control meter comprising a masking member disposed in front of a photoelectric element to provide an electri... | 01/23/1990 |
| 4887121 | Method and apparatus for exposure control based on color balance information A method and apparatus for exposure control in a camera is disclosed in which color balance information is used to select a weighted exposure measurement. A color balance signal is generated by measuring either light directly illuminating the camera or sc... | 12/12/1989 |
| 4876566 | Camera having auto-trim exposure control An exposure control system in a self-developing camera having a user trim adjustment for manually varying the exposure time of a picture over a limited range of exposure times is provided with a photocell for measuring the level of ambient light in a scen... | 10/24/1989 |
| 4839685 | Light receiving element for a rangefinder A light receiving element of a rangefinding device, for example for use in a camera, comprises a photoconversion light receiving element of which the light receiving surface is provided with a thin saw-toothed masking layer of aluminum directly deposited ... | 06/13/1989 |
| 4827300 | Optical detector for an auto-focus camera In an auto-focus system for a camera, a beam of infra-red light from the camera is reflected by the subject and detected by a detector 5, the balance or strength of illumination across the detector 5 indicating the distance of the subject relative to the ... | 05/02/1989 |
| 4794418 | Programmed shutter and apparatus for preventing foreign matter on lens from being photographed in a lens shutter type of camera A programmed shutter and an apparatus are provided for preventing material, such as dust, on camera lenses from being photographed. The shutter can be used alone, or can be used together with a pivotable neutral density filter which can be selectively pos... | 12/27/1988 |
| 4717935 | Electronic trim control for dual-photodetector exposure control system A photographic camera of the type having a quench-type strobe, a scanning blade shutter and an exposure control system having separate ambient and artificial light sensing devices for establishing distinct signals representative of the amount of ambient a... | 01/05/1988 |
| 4707106 | Multiple format camera and accessory Photographic apparatus including a camera and a masking accessory kit in which the camera may be adjusted between a fully automated single-image format mode and a multiple-image format mode for use with the masking accessory kit. The kit includes a plate-... | 11/17/1987 |
| 4534638 | Exposure control device for camera The disclosed camera has shutter blades which also serve as diaphragm blades and an auxiliary light-metering aperture arranged, upon operation of the shutter blades, to be opened and closed depending upon opening and closing of a main aperture which lies ... | 08/13/1985 |
| 4484808 | Method of and apparatus for controlling scene radiation A compact optical assembly is disclosed for use in controlling the direction of radiation from a scene in a scene evaluating arrangement. Included in this assembly is an arrangement having different optical portions for optically directing scene radiation... | 11/27/1984 |
| 4473289 | Incident light filter for cameras Presented in several different aspects is an incident light filter or cap assembly adapted to be attached over the lens of a camera for the purpose of permitting adjustment of the camera controls in view of the incident light conditions that exist at the ... | 09/25/1984 |
| 4472043 | Camera provided with a device for generating a signal representative of the finished state of the exposure An electromagnetically driven diaphragm shutter having the shutter blade serving at the same time as the diaphragm, uses a quasi-TTL actual aperture light measuring system for measuring the incident light by providing the light measuring element at the au... | 09/18/1984 |
| 4381890 | Incident light filter for cameras Presented in several different aspects is an incident light filter or cap assembly adapted to be attached over the lens of a camera for the purpose of permitting adjustment of the camera controls in view of the incident light conditions that exist at the ... | 05/03/1983 |
| 4363543 | Camera An automatic exposure camera and an autostrobo incorporated camera are disclosed. An automatic exposure camera comprises an ASA area plate rotatably supported on a camera lens housing and provided with a number of through-holes which successively vary an ... | 12/14/1982 |
| 4357083 | Method and apparatus using weighted range signal for controlling photographic functions Method and apparatus are disclosed which direct a preliminary pulse of radiation from a selectively energizable light source toward a subject, and a device for evaluating the amplitude of the reflected pulse of radiation therefrom so as to determine a wei... | 11/02/1982 |
| 4327981 | Electronic flashgun The invention relates to an electronic flashgun comprising an arithmetic unit (9) for computing a diaphragm stop number-distance combination, the arithmetic unit comprising a transparent element (11) with a pointer (10). This element is connected to a neu... | 05/04/1982 |
| 4316658 | Camera for close-up and normal range photography A camera, operable in flash and ambient exposure modes, has adjustable lens apparatus useful for close-up and normal range photography. A photoconductively controlled electromagnet, which is energized in accordance with the intensity of ambient light, con... | 02/23/1982 |
| 4315677 | Calibration arrangement for exposure control system A calibrating arrangement is disclosed for use in accurately correcting for exposure errors in an exposure control system having a plurality of photoresponsive regions. A scene light detecting and integrating circuit includes a pair of photoresponsive reg... | 02/16/1982 |
| 4306786 | Photographic exposure control with scene light integration level determined as function of pre-exposure ambient scene light detect A photographic exposure control system provides for the termination of an exposure interval as a predetermined function of the scene light detected during the exposure interval wherein at least one parameter of the predetermined function is varied as anot... | 12/22/1981 |
| 4286851 | Photographic camera apparatus for visually indicating the status of an exposure trim mechanism A photographic camera of the type having an automatic exposure control system which regulates the exposure delivered to a film of predetermined speed and which includes a manually operable exposure trim mechanism which varies the control of the exposure c... | 09/01/1981 |
| 4235539 | Photographic exposure control system utilizing a single photocell for three distinct purposes A photographic camera apparatus includes an improved exposure and electronic flash fire control system comprising a single photoresponsive element. The system provides a scene brightness measurement prior to a photographic exposure interval, an exposure i... | 11/25/1980 |
| 4220412 | Illuminant discrimination apparatus and method A method and apparatus for discriminating among various types of illuminants, such as fluorescent light, incandescent light and natural daylight. Such apparatus includes a photoelectric circuit for producing a signal having an amplitude which varies with ... | 09/02/1980 |
| 4208112 | Photographic camera accessory A photographic camera accessory is provided by which a camera of the type having an automatic exposure control system designed to properly expose film having a given speed can be adapted for use with a film having a faster speed.... | 06/17/1980 |
| 4200379 | Exposure control system including blade sensing follow focus and trim arrangement An improved exposure control system configured for automatic operation in both the ambient light and flash illumination modes of operation and including a pair of displaceably mounted shutter-aperture blades, a blade position sensor operative to detect a ... | 04/29/1980 |
| 4200373 | Photographic camera apparatus for visually indicating the status of an exposure trim mechanism A photographic camera of the type having an automatic exposure control system which regulates the exposure delivered to a film of predetermined speed and which includes a manually operable exposure trim mechanism which varies the control of the exposure c... | 04/29/1980 |
