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Class 396/138 - Mechanical rangefinder


Subclass of Class 396 - Photography
Definition: Subject matter including nonelectrical means to measure
No. of patents: 15
Last issue date: 03/28/2006


NumberTitleIssue Date
7020336Identification and evaluation of audience exposure to logos in a broadcast event
Method and system of detecting and analyzing the presence of a logo in one or more datastreams. In the method, at least one video datastream of an event is first received. Next, one or more regions of interest (ROIs) for the logo in one or more images comprising the...
03/28/2006
6917757Image-capturing device with synchronous and automatic focusing function
An image capturing apparatus includes a lens for capturing an image of an object, focusing module for focusing the lens, and a focus-decisive module including at least one slide rod for measuring a distance between the lens and the object and for controlling the foc...
07/12/2005
6792205Method for generating a textured range image
A method generates a textured range image by first acquiring a first image of a scene illuminated with ambient light, and acquiring a second image of the scene illuminated with direct light. The first and second images are combined to determine the textured range im...
09/14/2004
6532060Distance measuring apparatus
A distance measuring apparatus has: an AF optical system for dividing object light beams into a pair thereof and forming images and; an AFIC for photoelectrically converting received object optical images in pixels, accumulating charges, and outputting ob...
03/11/2003
5233382Range finding device unaffected by environmental conditions
A range finding device having a lens holder with two tunnels, and two lens plates mounted in front of the tunnels. Two pins are formed on the front surface of the lens holder, the two pins being positioned on vertical positioning lines externally of the v...
08/03/1993
4556304Autofocus camera including a cover for a taking lens and diagonally disposed range finder windows
At least two rangefinder windows for measuring by triangulation the distance to the object to be photographed, are disposed opposite each other around a taking lens in diagonally upper and lower positions, on the front face of the camera body. A protectiv...
12/03/1985
4447143Reflex camera with electronic range finder
Disclosed is a reflex camera having a range finder assembly consisting of a focussing disk, field lens, pentaprism and eyepiece and having an electronic range finder wherein the imaging lens of the reflex camera projects an image of the object to be photo...
05/08/1984
4427279Camera device for including separate information area on photographs
A camera device for including separate information area on a photograph is disclosed utilizing means for modifying a conventional instant camera having a lens and photographic film. The device is interposed between the lens and photographic film to produc...
01/24/1984
4391513Range finding optical mechanism
A device wherein object images are formed on photoelectric converter means arranged in the form of a row by a pair of imaging optical systems fixedly disposed with a base line length therebetween and the spacing between the two images is electrically dete...
07/05/1983
4338012Focusing screen
This specification discloses a focusing screen adapted for use with the range finder of a camera, particularly a split image type focusing screen. This screen comprises a pair of portions desposed in the center of the real image plane of the camera, and e...
07/06/1982
4336989Focusing screen
This specification discloses a focusing screen adapted to be mounted in the range finder of a single lens reflex camera. A diffraction lattice is provided in the focus indicating part of the focusing screen. The diffraction lattice comprises a periodical ...
06/29/1982
4330188Focusing screen
A focusing screen capable of showing an out-of-focus image in a conspicuous manner has a split prism forming portion on the central portion thereof which consists of a central area and a peripheral area surrounding the central area. Split prisms slanting ...
05/18/1982
4290693Arrangement for measuring the range or speed of an object
The invention relates to an arrangement for measuring the range or speed of an object, in which two optical devices are offset from one another transversely to the direction of the object to produce auxiliary images of such an object, which are photoelect...
09/22/1981
4182564Focusing screen for photographic cameras
The invention relates to a focusing screen for photographic cameras with split-image range finder, of which the wedges lying side by side are inclined oppositely to one another and extend obliquely of the lateral edges of the focusing screen. Known focusi...
01/08/1980
4171890Dichroic rangefinder
Disclosed is a reflex rangefinder system for a camera having a pair of li reflecting members mounted to reflect light rays from the scene in the viewfinder system. The members are dichroically coated with different complementary colors such that the dual...
10/23/1979
 
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