Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 7280751 | In-finder display device An in-finder display device includes an optical member having prisms and disposed about a position where an objective unit forms an image; an image-inverting unit receiving light from the optical member; an eyepiece unit for guiding the light from the image-invertin... | 10/09/2007 |
| 6816676 | Adaptive control of LCD display utilizing imaging sensor measurements A method and arrangement of controlling the attributes of a camera display is disclosed. The method and arrangement obtain information relating to a scene and detect a sensitivity value associated with a camera. Using this information, at least a brightness of the c... | 11/09/2004 |
| 5745810 | Image taking apparatus An image taking apparatus including a photometry device that detects a luminance value for each of a plurality of areas of a photometric field, a selection circuit that selects one of the plurality of areas to be a reference area, a computing circuit that... | 04/28/1998 |
| 5400113 | Control device for preventing red-eye effect on camera A camera capable of operating in a red-eye prevention mode. The camera has an electronic flash device which is activated by a drive circuit in synchronization with the exposure. The electronic flash device also serve as a pre-light-emission device capable... | 03/21/1995 |
| 5373341 | Lockout override for cameras A camera with photo lockout when a lockout condition is present is overridden when the trigger switch is pressed a second time. For example, when the flash charger has not reached a predetermined minimum charge level, flash lockout occurs. As another exam... | 12/13/1994 |
| 5235380 | Camera having device for display within viewfinder A camera is provided with two display devices, one for making a superimposed display of information inside an image plane frame within a viewfinder and the other for displaying information outside the image plane frame. The superimposed display is control... | 08/10/1993 |
| 4905088 | Pick-up device A photographic device typically employing a CCD element as a shutter is arranged to have an improved display system. The display system displays the picture number per unit time and the image information storage time by using different display conditions ... | 02/27/1990 |
| 4763196 | Image sensing device An image sensing device includes image sensing apparatus for converting an optical image into electrical information and stores the information. Time control apparatus selects the incident time or the storing time of the optical image at the image sensing... | 08/09/1988 |
| 4731677 | Integrated video camera/recorder unit A video tape recorder (VTR) including a detection switch for detecting presence and absence of an erasure prevention tab of a video tape cassette, a light emitting element, a control device associated operatively with the light emitting element, and an el... | 03/15/1988 |
| 4681420 | Light measuring device The disclosed light measuring arrangement is positioned to receive and measure light from a focusing screen on which a display of focusing conditions is superimposed. A correcting circuit corrects the object brightness sensed by the light measuring arrang... | 07/21/1987 |
| 4572646 | Display device in camera finder A display device in the finder of a camera has a plurality of digits of light-emitting elements for displaying exposure information on the side of a frame of field of view of the finder. The light-emitting element of the nearest one of the digits to the f... | 02/25/1986 |
| 4373790 | Camera having a flashlight photography recommendation device In a camera wherein an object field is divided into a plurality of areas and the brightness of the object in each of the areas is measured to thereby obtain a plurality of measurement values, a device for recommending auxiliary illumination of the object ... | 02/15/1983 |
| 4365236 | Digital display circuit displayable in analog fashion A display circuit for displaying analog input voltages in a digital fashion using a parallel comparison type analog-digital converter includes a voltage generator for generating a plurality of reference voltages quantized at a predetermined voltage width,... | 12/21/1982 |
| 4258990 | Program type electric shutter provided with exposure warning indicating device A program type electric shutter wherein a shutter blade which is also a diaphragm blade and is made to be able to latch an exposure warning indicating device to be inoperative just before the beginning of the opening of the shutter blade and a diaphragm d... | 03/31/1981 |
| 4235547 | Photographic camera A photographic camera provided with a distance and brightness indicator wherein necessity of an artificial light source can be detected by brightness of a photographic object in a focusing adjustment and a photographic distance is indicated by illuminatio... | 11/25/1980 |
| 4226516 | Camera and viewfinder display device therefor In the enclosed camera, the progress of a long time exposure is indicated by integrating a voltage over the exposure time and displaying the integrated voltage with an ammeter needle or a row of sequentially illuminated LEDs. According to an embodiment of... | 10/07/1980 |
| 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 |
| 4190337 | Exposure measurement circuit The exposure metering circuit comprises a differential amplifier, whose inputs are connected to a measuring bridge consisting of a photo-conductive cell and setting controls for the insertion of exposure factors and whose outputs are connected to light-em... | 02/26/1980 |
| 4182573 | Exposure meter An exposure meter for use in photography which includes means for measuring brightness at a plurality of places in a scene to be measured for exposure, means for calculating frequency distribution of the brightness which divides brightness value into many... | 01/08/1980 |
| 4132985 | Automatic control device for cameras This invention relates to an automatic camera exposure control device comprising a first light measuring circuit including a photoelectric element receiving light through the objective lens of the camera and generating a first output proportional to the l... | 01/02/1979 |
| 4079388 | Illumination detecting and recording method and device therefor Conventionally, color films must be used with the light source or illumination for which it was designed, such as for natural daylight, fluorescent-light or tungsten-light or, if used with another light source, a suitable conversion filter must be placed ... | 03/14/1978 |
| 4070682 | Exposure time control circuit An exposure time control circuit for a camera includes a level selecting circuit between a light measuring circuit and a memory circuit to have a selected output memorized in the memory circuit. The level selecting circuit is provided with two inputs, one... | 01/24/1978 |
| 4061431 | Light measuring and indicating circuit A light measuring and indicating circuit utilizing indicating elements such as light-emitting diodes, to indicate corresponding light intensity levels. Intermediate levels are indicated without increasing the number of flip-flops employed in an activating... | 12/06/1977 |
| 4051491 | Indicating exposure meter for a camera An indicating exposure meter for a camera has an array of indicating elements, each of which has an active and an inactive state ascertainable by inspection, and a circuit responsive both to light from the scene being photographed by the camera, and to th... | 09/27/1977 |
| 4043677 | Exposure meter An exposure meter includes a plurality of indicating elements, such as illuminating diodes which are turned on by the output of a photometry device and the diodes are repeatedly turned on and off by the output signal from a switch. This turn on and turn o... | 08/23/1977 |
| 4037232 | Visual exposure indicator in photographic apparatus Three electric lamps with different voltage-illumination thresholds are connected to be successively turned on to show exposure times by an electronic switch, such as a transistor, connected to a voltage divider composed of a photoconductor, exposed to sc... | 07/19/1977 |
| 4023910 | Electronic photometer with two variable indicators There is disclosed an evaluating circuit for use with a photoelectric transducer and an electronic photometer. The photometer comprises indicators, all of which are variable, and comprises a combining device arranged to combine by an inverse computing ope... | 05/17/1977 |
| 4015274 | Memory device of an electrical shutter for single lens reflex camera A memory device is provided for storing a photometric quantity that is sensed and photoelectrically converted, by a light receiving element disposed in the light path of the finder of a single lens reflex camera, and used for determining a shutter speed o... | 03/29/1977 |
| 3990799 | Digital exposure meter In an exposure meter having a row of lighting elements, such as lamps or light-emitting diodes, which correspond to respective exposure values, an improvement is made in that by utilizing a capacitor-charging integrating circuit, a constant current circui... | 11/09/1976 |
| 3978499 | Warning display circuit of the electric shutter for camera A warning light display device for an electric shutter of a camera having an exposure time control circuit for determining the exposure time of an electric shutter in dependence upon at least the brightness of an object being photographed. A warning displ... | 08/31/1976 |
| 3967288 | Electric shutter operating circuits In an electronic shutter operating circuit for use in a photographic camera a differential amplifier comprising a pair of transistors is provided for comparing the photosensitivity of the film used and the brightness of the object to display over exposure... | 06/29/1976 |
| 3958256 | Photographic camera A single light-sensitive element serves to furnish a signal for setting the aperture prior to the exposure time and to control the exposure time. Prior to the exposure time a first and second threshold stage furnish a first and second threshold output sig... | 05/18/1976 |
| 3955892 | Device for indicating exposure information in the viewfinder of a camera Light emitting elements such as light emitting diodes provided in the viewfinder of a camera are connected with a light measuring circuit including a photodetector through an A-D converter, a decoder and a gate circuit so that the light emitting elements ... | 05/11/1976 |
