Quotables
"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 6704126 | Image processor The present invention discloses an image processor, in which an inverter for driving a fluorescent lamp is disposed in separation into parts at both ends of a carriage mounting the fluorescent lamp thereon in a direction perpendicular to a scanning direct... | 03/09/2004 |
| 6684044 | Light source lamp for image reader A light source lamp socket of an image reader is formed to be capable of being placed as close to a platen glass as possible to increase the intensity of light beams to be irradiated on a original. A part of each of lamp socket attached on the both ends o... | 01/27/2004 |
| 6314243 | Electronic flash light-emission controlling method and apparatus and camera In a camera with a shutter that also works as a diaphragm and adjusts an aperture of a lens and a shutter speed by controlling an opening shape, a first opening value for obtaining a target exposure is found according to a subject distance, a guide number... | 11/06/2001 |
| 6178030 | Light-scanning optical system having wobble-correcting function and light-scanning apparatus using the same In a light-scanning optical system comprising a laser light source 11, a collimating lens 12, a first imaging optical system 1, a second imaging optical system 2, and a surface 19 to be scanned, the second imaging optical system 2 comprises, successively ... | 01/23/2001 |
| 4814876 | Electronic camera An electronic camera includes an electronic camera unit for generating a still image signal, an encoder for converting the still image signal from the electronic camera unit into a television signal and for issuing the television signal through an output ... | 03/21/1989 |
| 4779612 | Hysteroscope having a flexible operation portion A hysteroscope which allows an operator to perform medical treatments in a through-endoscopic manner. The hysteroscope is free to bend between the operation section and insertion section thereof and is capable of maintaining its bent state as it is, so th... | 10/25/1988 |
| 4759347 | Endoscope apparatus using solid state image pickup device An endoscope apparatus having an end section provided with an image forming optical system, a self-scanning type solid state image pickup device at which cyan and yellow color filters are positioned alternately to correspond to respective picture elements... | 07/26/1988 |
| 4710216 | Method of making flexible optical fiber bundle A bundle of optical fibers each covered by an acid-soluble borosilicate glass is treated with an acid solution, with an alkali solution, and then with an acid solution to completely remove the acid-soluble glass from the middle portion between the end por... | 12/01/1987 |
| 4697210 | Endoscope for displaying a normal image An endoscope used for observing the interior of a cavity in a human body. In the endoscope according to the present invention, an image sensor is provided in the forward end of an insertion section and an object of interest is displayed on a screen of a t... | 09/29/1987 |
| 4685451 | Endoscope apparatus using solid state image pickup device An endoscope apparatus having an end section provided with an image forming optical system, a self-scanning type solid state image pickup device at which cyan and yellow color filters are positioned alternately to correspond to respective picture elements... | 08/11/1987 |
| 4667230 | Endoscope having a control section with level adjusting device An endoscope of the type having in its imaging system a solid state imaging device provided in its insertable section into a cavity of a living body for receiving an optical image and converting it into electrical signals which are processed and then tran... | 05/19/1987 |
| 4646723 | Construction of a forward end portion of an endoscope using a heat conductive material An endoscope is provided which includes a viewing head in a section which is insertable into a cavity of a living body. An image sensor for generating a video signal which in turn is transmitted to a television display to be visualized thereon as a televi... | 03/03/1987 |
| 4646721 | Light shielding construction for the forward end of an endoscope An endoscope includes in the viewing head of its insertable section into a cavity of a living body an image sensor for generating a video signal which in turn is transmitted to a television display to be visualized thereon as a television picture. The ima... | 03/03/1987 |
| 4642717 | Mechanism for lifting and lowering magnetic head in magnetic recording and reproducing device A mechanism for lifting and lowering a magnetic head into and out of contact with a magnetic medium such as a magnetic sheet includes at least one guide shaft rotatably supported on a frame and having an eccentric portion. A magnetic head carriage support... | 02/10/1987 |
| 4626744 | Electronic discharge tube and electronic light emitter using it An electronic light emitter comprising an electric-discharge tube having a transparent tube, a cathode, an anode, a trigger electrode, and a reflector for forwardly reflecting light emitted from the discharge tube. A reflecting portion is formed on the tr... | 12/02/1986 |
| 4622954 | Endoscope having a plate-like image sensor for forming images An endoscope includes in the viewing head of its insertable section into a cavity of a living body an image sensor for generating a video signal which in turn is transmitted to a television display to be visualized thereon as a television picture. The ima... | 11/18/1986 |
| 4617915 | Construction of manual control section of endoscope An endoscope includes in a viewing head of its insertable section into a cavity of a living body an image sensor for generating a video signal which in turn is transmitted to a television display to be visualized thereon as a television picture. A manual ... | 10/21/1986 |
| 4616630 | Endoscope with an obtusely angled connecting section An endoscope used for observing the interior of a cavity in a human body. The endoscope according to the present invention is provided in the forward end of an insertion section with an image sensor and an object of interest can be displayed on a screen o... | 10/14/1986 |
| 4601284 | Endoscope connecting system An endoscope connecting system having as its imaging system a solid state imaging device for generating a video signal containing image information of an interested object which is transmitted to a display to be visualized such as a television picture com... | 07/22/1986 |
| 4541717 | Attraction holding device A device for holding a measurement object e.g. in interferometers comprises a base plate and an attraction plate mounted on the base plate so as to attract the object placed on an upper surface of the attraction plate to the base plate together with the a... | 09/17/1985 |
| 4499406 | Electronic discharge tube and electronic light emitter using it An electronic light emitter comprising an electric-discharge tube having a transparent tube, a cathode, an anode, a trigger electrode, and a reflector for forwardly reflecting light emitted from the discharge tube. A reflecting portion is formed on the tr... | 02/12/1985 |
| 4442381 | Auto strobe control circuit An auto strobe control circuit comprising a flash stopping signal generating circuit for measuring the luminance of an object exposed to light emitted from a flash tube by a photometric circuit, sending the obtained photometric value, film sensitivity inf... | 04/10/1984 |
| 4411525 | Method of analyzing an object by use of scattering light A light beam having a limited diameter impinges upon and transmits through an object and scattering light carrying information regarding the internal structure or composition of the sample is obtained from the sample. The scattering light is photoelectric... | 10/25/1983 |
| 4389565 | Automatic focus controlling device In an optical instrument such as a photographic camera or an endoscope, the focus of an image of the object to be observed or photographed is automatically controlled based on the distance automatically measured. The distance of the object is automaticall... | 06/21/1983 |
| 4367730 | Water proof cover for endoscope An endoscope is provided with a water proof cover on its eyepiece portion or its connector portion to be connected with a light source system. The water proof cover is provided with a smooth engaging face on the internal periphery near its open end to be ... | 01/11/1983 |
| 4352543 | Lens barrel In a lens barrel for a photographic camera or the like employing operating rings made of synthetic resin, the operating rings are provided with slots on the periphery thereof. The slots are preferably provided to extend in the direction perpendicular to t... | 10/05/1982 |
| 4327976 | Light beam projecting device for auto-focusing camera In an auto-focusing camera, a light beam projecting device is provided for projecting a light spot on the object to be photographed. The light spot is projected on the object to be photographed in response to depression of the shutter release button or ac... | 05/04/1982 |
| 4321462 | Light measuring device A number of photoreceptors are arranged in a matrix along X-lines and Y-lines. An X-direction multiplexer and a Y-direction multiplexer are connected with the X-lines and Y-lines, respectively. Log-conversion amplifiers are connected at the input of the Y... | 03/23/1982 |
| 4298252 | Rear stop type lens system A rear stop type lens with highly corrected comatic flare is constituted of one convex meniscus lens, two concave lenses and one biconvex lens arranged in the order mentioned from the object side.... | 11/03/1981 |
| 4294521 | Rear stop type zoom lens A compact rear stop type zoom lens suitable for use with a camera having an electronically controlled shutter. The rear stop type zoom lens is comprised of two lens groups which effect variation in magnification when moved in opposite directions on the op... | 10/13/1981 |
| 4285585 | Exposure control compensating means for close-up photography In an automatic exposure control camera in which exposure is controlled based on an output of an arithmetic unit, the F-value information of the taking lens of the camera in the arithmetic unit is compensated by use of a distance information from a distan... | 08/25/1981 |
| 4225218 | Exposure time control circuit for camera with flash light device In a camera provided with an electronic flash light device, the exposure time is controlled based on a manually selected condition when so required in case that the flash light device is not ready for emitting light. A light measuring circuit is connected... | 09/30/1980 |
| 3961341 | Automatic shutter speed control means for a camera An automatic exposure control circuit which controls the shutter speed in accordance with the output of a light measuring circuit including a photodetector which detects the level of scene brightness. The output of the photodetector is memorized by a memo... | 06/01/1976 |
