Optics: image projectors – Cabinet encloses projector and one side of screen – Reflector between lamp and screen
Patent
1994-08-24
1995-03-28
Cuchlinski, Jr., William A.
Optics: image projectors
Cabinet encloses projector and one side of screen
Reflector between lamp and screen
353 80, 353 99, 356391, G03B 2128
Patent
active
054021928
ABSTRACT:
The contour image of a workpiece is projected by a conventional lens system onto a first mirror lying in a plane inclined at other than 90.degree. to the optical axis of the lens system. This image is reflected directly (i.e., without the use of any relay lenses) to a second mirror that is spaced from and lies in a plane normal to that containing the first mirror; and from there the image is reflected directly to a third mirror spaced from and lying in a plane normal to each of said first and second mirrors. The third mirror directs an upright and unreversed image directly onto the screen of the projector along an axis parallel to the optical axis of the lens system.
REFERENCES:
patent: 4101194 (1978-07-01), Miyazaki et al.
patent: 4223986 (1980-09-01), Choate
patent: 5307098 (1994-04-01), Okita
Muller, MP 320 Measuring Projector, Jena Rev. (Germany) No. 5 (1970) pp. 285-286.
Cuchlinski Jr. William A.
Dowling William C.
Optical Gaging Products, Inc.
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