Illumination – With polarizer
Patent
1992-11-25
1994-05-17
Lazarus, Ira S.
Illumination
With polarizer
362 17, 362293, 362346, F21V 914
Patent
active
053133730
ABSTRACT:
An apparatus for providing uniform illumination to a surface includes a chamber defined by a wall, the wall having an opaque wall portion and a partially transparent wall portion. A light source such as a flash lamp, is mounted in the chamber. The interior surface of the chamber wall is light-reflective. The partially transparent wall portion has transparent apertures which permit light to exit the light chamber. The partially transparent wall portion has a first section with a first average transparency and a second section with a second average transparency. In operation, the apparatus completely covers a target surface while light generated by the light source either directly exits the light chamber through the transparent apertures or is reflected off the reflective interior surfaces of the light chamber before exiting the light chamber through the transparent apertures, uniformly illuminating the target surface.
REFERENCES:
patent: 2308009 (1943-01-01), Hood et al.
patent: 2794365 (1957-06-01), Baasner et al.
patent: 3028483 (1962-04-01), Simmon
patent: 3112075 (1963-11-01), Sparks
patent: 3216317 (1965-11-01), Nail
patent: 3511211 (1970-05-01), Horne et al.
patent: 3716298 (1973-02-01), Reardon
patent: 3878385 (1975-04-01), Kingston
patent: 3996476 (1976-12-01), Lazzara
patent: 4335302 (1982-06-01), Robillard
patent: 4404620 (1983-09-01), Takahashi et al.
patent: 4409646 (1983-10-01), Baliozian
patent: 4488679 (1984-12-01), Bockholt et al.
patent: 4500776 (1985-02-01), Laser
patent: 4603976 (1986-08-01), Fetzer et al.
patent: 4737653 (1988-04-01), Nakagawa et al.
patent: 4739159 (1988-04-01), Inokuchi
patent: 4766300 (1988-08-01), Chadima, Jr. et al.
patent: 4777566 (1988-10-01), Lowell et al.
patent: 4818847 (1989-04-01), Hara et al.
patent: 4877949 (1989-10-01), Danielson et al.
patent: 4947291 (1990-08-01), McDermott
patent: 5019699 (1991-05-01), Koenck
patent: 5027418 (1991-06-01), Ikegaya et al.
patent: 5032960 (1991-07-01), Katoh
patent: 5046159 (1991-09-01), Hamanaka
patent: 5075827 (1991-12-01), Smith
patent: 5081343 (1992-01-01), Chadima, Jr. et al.
Bjorner Johannes A. S.
Hamada Kevin Y.
Lais Kenneth A.
Cariaso Alan B.
Drobile James A.
Lazarus Ira S.
Murray William H.
Rosenthal Robert E.
LandOfFree
Apparatus for the uniform illumination of a surface does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for the uniform illumination of a surface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for the uniform illumination of a surface will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-881877