Optical: systems and elements – Mirror – With a transmitting property
Patent
1995-01-11
1999-01-12
Shafer, Ricky D.
Optical: systems and elements
Mirror
With a transmitting property
359857, 359869, 359634, 362301, 362302, 355 67, G02B 508, G02B 2714
Patent
active
058597344
ABSTRACT:
In order to suppress generation of the line bow phenomenon created when light from a light source is collected into a linear form on the surface of an original document by a toric mirror, for example, and in order to obtain uniform lighting, the optical axis of the light source is made to be in a common plane with a line normal to the surface of the toric mirror. Accordingly, the light travelling to the toric mirror, between the light source and the toric mirror, and the light reflected by the toric mirror, travelling between the toric mirror and the second mirror, is not inclined relative to the toric mirror normal line. The second mirror, the optical path conversion mirror, can be a half-mirror positioned between the light source and the toric mirror. Alternatively, a separate light source can be provided on opposite sides of the second mirror. As another alternative, the second mirror can be divided into two portions, with the light source being provided between the two portions.
REFERENCES:
patent: 3447854 (1969-06-01), Minter
patent: 3827778 (1974-08-01), Wheeler
patent: 4639082 (1987-01-01), Loy
patent: 4718754 (1988-01-01), McIntosh
patent: 4893920 (1990-01-01), Webb
patent: 5090798 (1992-02-01), Kohayakawa
patent: 5191406 (1993-03-01), Brandestini et al.
patent: 5214536 (1993-05-01), Prakash
patent: 5255116 (1993-10-01), Araki et al.
patent: 5285320 (1994-02-01), Hohberg
patent: 5408346 (1995-04-01), Trissel et al.
patent: 5668656 (1997-09-01), Fujinawa et al.
Fujinawa Nobuhiro
Maeda Eisaku
Nikon Corporation
Shafer Ricky D.
LandOfFree
Light-supplying optical device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Light-supplying optical device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light-supplying optical device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1521340