U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Famous Patents

In 1879, Auguste Bartholdi received design patent number 11,023 titled "Design for a Statue". It was for the Statue of Liberty.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 353/99 - Plural


Subclass of Class 353 - Optics: image projectors
Definition: Subject matter including a plurality of reflectors as there
No. of patents: 492
Last issue date: 05/22/2012


                    13  
NumberTitleIssue Date
4129364Film projector
An arrangement for projecting film pictures in which a system of lenses are provided on the side of a window facing the light source. A first mirror in the light beam projected by the lens system, forms an angle with the axis of the light beam. The first ...
12/12/1978
4111538Projection system of high efficiency
There is disclosed a light system for projection of images onto a visual read out surface such as a screen or photo receptor recording device such as a xerographic drum. The projection system employs a nonpoint light source which forms a light beam of non...
09/05/1978
4112438Method and projection apparatus
An apparatus and method for constructing a completed image from an incomplete selected sample and for the projection of the image onto a surface upon which an article has been affixed so as to permit the viewing of the article as if the same were position...
09/05/1978
4060317Compact folded mirror recorder and viewer of information
An optical projection apparatus employing lenses between 30 and 150 mils radius. The lenses are arrayed over a surface, near a photographic film which carries microimages. The microimages are projected through the lenses and against mirrors. The mirrors, ...
11/29/1977
4050799Microform reader
The disclosure relates to a microform reader apparatus of the type which projects a magnified image of an image film frame onto the rear side of a viewing screen to facilitate forward viewing of the magnified image. The microform reader of the present inv...
09/27/1977
4013353Optical reflecting system
A reflecting system utilizing a uniquely designed external mirror of specified shape to project and reflect light beams, distortion-free to the eye, from a light source to a receiving surface. The light source is uniquely positioned in relation to the mir...
03/22/1977
3988059Projector
A wide angle projector is disclosed for projecting an image having an illuminated and unilluminated region on either side of a straight boundary region which defines a datum plane established by the orientation of the projector. The image is detected at a...
10/26/1976
3971917Labels and label readers
A label incorporating a plurality of concentric rings having two different light reflective characteristics provides a binary coded label on which any desired information can be displayed, and which may be secured to various objects. By passing the label ...
07/27/1976
3957364Coarse viewing system for an annular field projection system
A viewing system for an annular projection system, particularly useful to provide a view of a semiconductor wafer on which an image of a integrated circuit mask pattern has been projected using an annular field projection system in which the field of view...
05/18/1976
3947188Variable conjugate optical system
An optical system for projecting an image of an object, operating between fixed object and image planes. Both the object conjugate and the image conjugate are variable to vary the magnification in the system. This is accomplished without moving the optica...
03/30/1976
3947104Compact imaging apparatus and projection display device
A compact imaging apparatus and rear projection display device are described wherein an image of an object is focused on an image area which is displaced and rotated from the object plane. A pair of planar mirrors of predetermined shape are selectively lo...
03/30/1976
3940209Projector case assembly
A projector case assembly designed for use with a projector system which utilizes a system of mirrors to provide enlarged panoramic viewing. The projector case assembly is designed to accommodate any standard movie or slide projector and it serves as both...
02/24/1976
                    13  
 
Sign InRegister
Username  
Password   
forgot password?