Illumination – Supported by vehicle structure – Condition responsive
Patent
1989-01-03
1989-10-17
Lazarus, Ira S.
Illumination
Supported by vehicle structure
Condition responsive
362 23, 362 26, 362309, 362327, 362339, G02F 1133, G02F 101
Patent
active
048742287
ABSTRACT:
A back-lit display utilizes a light transmissive film having a smooth surface and a structured surface. The structured surface has a series of triangular prisms running parallel or concentric to one another. A reflector is placed adjacent to the smooth surface so that light entering the film at an angle that is close to parallel to the smooth surface will emerge from the film at a predetermined angle with respect to the incoming beam. A display, that could be a liquid crystal display, is positioned so that light reflected by the film passes through it.
REFERENCES:
patent: 4011001 (1977-03-01), Moriya
patent: 4215647 (1980-08-01), Fukasawa
patent: 4266859 (1981-05-01), Jogashi
patent: 4298249 (1981-11-01), Gloor et al.
patent: 4340277 (1982-07-01), Kaufmann et al.
patent: 4799137 (1989-01-01), Aho
Aho Kenneth A.
Melby Jeffrey J.
Miller Richard A.
Buckingham Stephen
Hagarman Sue
Kirn Walter N.
Lazarus Ira S.
Minnesota Mining and Manufacturing Company
LandOfFree
Back-lit display does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Back-lit display, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Back-lit display will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1739990