Light-polarizing film

Details Light-polarizing film Light-polarizing film

1988-10-25

1990-01-23

Gron, Teddy S.

Compositions

Light transmission modifying compositions

Producing polarized light

350397, 4284769, 428483, 428516, 428520, 4284111, F21V 914, G02B 530

Patent

active

048956775

ABSTRACT:
The present invention relates to a high-performance light-polarizing film assuming a neutral gray wherein are adsorbed and oriented, in a polymer film, (A) iodine as a main polarizing coloring matter and additionally (B) a dichroism dye having a absorption characteristics and polarization characteristics in the low wavelength region of visible light and showing, when adsorbed and oriented together with iodine in a polymer film, a direction of transition moment substantically identical with that of iodine and/or a dichroism dye having absorption characteristics and polarization characteristics in the high wavelength region of visible light and showing, when adsorbed and oriented together with iodine in a polymer film, a direction of transition moment substantially identical with that of iodine. As compared with the prior iodine type light-polarizing films, the light-polarizing film obtained in the above-mentioned manner has a high light transmittance in the wavelength range of visible light, assumes a neutral gray and has a high polarizing co-efficient. Accordingly, it is effectively usable as a liquid crystal material for liquid crystal television and the like and effectively applicable to optical uses such as CRT filter and the like.

REFERENCES:
patent: 2173304 (1939-09-01), Land
patent: 2220111 (1940-11-01), Marks
patent: 2237567 (1941-04-01), Land
patent: 3884693 (1975-05-01), Bauer
patent: 4133775 (1971-01-01), Bloom
patent: 4256493 (1981-03-01), Yokoyama
patent: 4264692 (1981-04-01), Held
patent: 4279653 (1981-07-01), Makishima
patent: 4387133 (1983-06-01), Ichikawa
patent: 4396646 (1983-08-01), Schuler
patent: 4465767 (1984-08-01), Oba
patent: 4466704 (1984-08-01), Schuler
Patent Abstracts of Japan, vol. 9, No. 33 (P-334)(1756), Feb. 1985.

Affiliated with

Also associated with

Rating

Light-polarizing film 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-polarizing film, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light-polarizing film will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-644360