...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7239351 | System matching finder view area and capture area in single-lens reflex image pickup apparatus, method thereof, and image pickup apparatus thereof A video camera obtains a capture scope obtained through finder optics of a single-lens reflex camera and indicated by a view frame mask. A PC detects the position corresponding to the capture scope from the captured image captured by the image pickup device of the s... | 07/03/2007 |
| 6587644 | Finder unit A finder unit includes an objective optical system for forming a viewing image, an inverting optical system for making the viewing image formed by the objective optical system an erecting normal image, an eyepiece optical system for viewing the viewing im... | 07/01/2003 |
| 6536907 | Aberration compensation in image projection displays Optical projection systems for the display of electronic images often suffer from degraded image quality due to color field registration errors caused by lateral chromatic aberration. Although most projection lenses are partially corrected for lateral chr... | 03/25/2003 |
| 6519420 | Viewfinder apparatus for camera Disclosed is a viewfinder apparatus for a camera, comprising: a curvilinear image-forming surface in a viewfinder optical system independent of a photographic optical system; a field frame disposed adjacent to the image-forming surface for defining a refe... | 02/11/2003 |
| 5815746 | Parallax correction apparatus An apparatus, such as a camera, comprises a computing device which computes a parallax correction signal for correcting a parallax of a viewfinder on the basis of a focusing distance and a focal length of an image forming optical system, and a driving dev... | 09/29/1998 |
| 5787313 | Hybrid camera including viewfinder with masks for parallax correction and image format indication A hybrid camera includes a camera housing (12); an electronic imaging device (68) supported within the camera housing; a first optical system (58) for focusing light from a scene onto the imaging device, the first optical system having a first optical axi... | 07/28/1998 |
| 5765047 | Lens shutter camera having a zoom viewfinder mechanism and an adjustable strobe light generating unit A lens camera having a viewfinder mechanism and an adjustable strobe light generating unit, wherein the zoom viewfinder mechanism has a disk cam to cause a lens group of a viewfinder optical system to move back and forth in an optical axis direction accor... | 06/09/1998 |
| 5765056 | Camera having parallax compensation apparatus A camera having an apparatus for correcting parallax includes viewfinder optical system for viewing an object. A shooting lens system for photographing the object is disposed such that the optical axis of the shooting lens system is different from the opt... | 06/09/1998 |
| 5721982 | Display device for a camera for accurately displaying a rangefinding spot A camera viewfinder device adapted for use in a camera having a photographic lens for photographing a subject and a rangefinder system for producing rangefinding information. The viewfinder device includes a display unit having multiple display parts that... | 02/24/1998 |
| 5692227 | Viewfinder A camera viewfinder having a plurality of lens groups, wherein a photographing optical system of the camera is separate from the viewfinder. The viewfinder includes a parallax error compensating and diopter adjusting lens group which is one of the plurali... | 11/25/1997 |
| 5628037 | Parallax correcting mechanism for real image type viewfinders A parallax correcting mechanism for a real image type viewfinder, particularly for a real image type viewfinder having a zoom function of high magnification and allowing a desired parallax correction to be easily achieved by swinging a housing for an erec... | 05/06/1997 |
| 5604563 | Camera having multi-point distance measuring device for auto-focusing A switch input unit detects the ON/OFF states of first and second release switches. A timer unit detects the input timings of the switches. A CPU controls a finder shift mechanism via a shift control unit in accordance with the timing detection results so... | 02/18/1997 |
| 5424796 | Lens shutter camera including zoom lens A lens shutter type of camera is disclosed in which a zoom lens is positioned in a lens block (1) which has a sector gear (15) rotatably associated with the lens block and with a rotatable cam ring (14). The cam ring and sector gear are rotatable in a sub... | 06/13/1995 |
| 5381205 | Parallax correcting apparatus in a camera A parallax correcting apparatus in a camera provided with an auto focus mode in which a photo-taking lens is automatically driven on the basis of the result of distance measurement to thereby effect focus adjustment and a manual focus mode in which a phot... | 01/10/1995 |
| 5173726 | Automatic parallax correction in deploying lens camera A camera which comprises a camera housing, containing a viewfinder system and a back wall. The camera further comprises a deployable objective lens, having an optical axis that is substantially normal to the back wall of the camera housing throughout lens... | 12/22/1992 |
| 5150145 | Lens shutter camera including zoom lens A lens shutter type of camera is disclosed in which a zoom lens is positioned in a lens block (1) which has a sector gear (15) rotatably associated with the lens block and with a rotatable cam ring (14). The cam ring and sector gear are rotatable in a sub... | 09/22/1992 |
| 4924247 | Apparatus and method for correcting and adjusting parallax in electronic camera A parallax correcting apparatus is provided which comprises an imaging device driving mechanism for supporting an imaging device so as to move away from and close to the optical axis of a finder optical system. The imaging device driving mechanism moves t... | 05/08/1990 |
| 4812912 | Focus detection condition display device for camera A focus detection condition display device suitable for use in a camera provided with an electronic viewfinder. The pattern signal corresponding to a focus detection zone on which focus detection is conducted by a focus detecting system is superimposed on... | 03/14/1989 |
| 4576458 | Camera finder employing holographic view field frames A camera finder capable of indicating a view field frame for determining the range of photographing and a target mark for showing a desired focus adjusting portion. Interposed between an objective lens and an eye lens in this finder are holograms having r... | 03/18/1986 |