Light quantity control apparatus

Details Light quantity control apparatus Light quantity control apparatus

1980-03-19

1982-11-16

Punter, William H.

350381, 350383, 350401, G02F 103, G02F 129, G02F 109

Patent

active

043592686

ABSTRACT:
First, second and third double refractive elements are aligned along a Y axis. A polarization converter is disposed between the first and second elements for polarizing two light component, produced by the first element and a reflection mirror is disposed between the second and third element for deflecting a first output light of the second element. The second birefringence element operates to separate two light components converted by the polarization converter into converted light and not converted light and to synthesize one of the separated light component to produce a first output light and to convert remaining light component into second and third output light. The third birefringence element operates to synthesize the second and third lights supplied from the second element to form a single output light thereby controlling quantity of light produced by the third element by the polarization converter.

REFERENCES:
patent: 3243724 (1966-03-01), Vullsteke
patent: 3329474 (1967-07-01), Harris et al.
patent: 3430048 (1969-02-01), Rubinstein
patent: 3719414 (1973-03-01), Wentz
Ammann, E. O., "Modification of Devices Normally Operating Between Input & Output Polarizers to Allow Their Use with Arbitrarily Polarized Light", Jr. Optical Soc. America, 4/65, pp. 412-417.
Nelson, J. J., "Digital Light Deflection", Bell System Tech. Jr., 5/64, pp. 821-845.
Matsumoto, T., "Investigation of a Minute Light Circuit Utilizing Birefringence Characteristic", presented meeting of Soc. of Japanese Electronic Communication, Published 9-11-78.
Kondo et al., "Phase-Matched Electro-Optic Light Modulator", Proc. 9th Conf. on Solid State Devices, Japanese Jr. of App. Physics, vol. 17, 1978, Supp. 17-1, pp. 107-112.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1434244