Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Using radiant energy
Patent
1989-08-15
1991-07-30
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Using radiant energy
324158R, 350356, 350403, G01R 33032, G01R 3100
Patent
active
050362704
ABSTRACT:
A set of birefringent members disposed in a path of light has an input surface via which the light enters the set and an output surface via which the light exits from the set. The birefringent members are designed and arranged so that the light separates into an ordinary ray and an extraordinary ray after the light enters the set via the input surface, that the ordinary ray and the extraordinary ray proceed along different courses respectively in the set, and that the ordinary ray and the extraordinary ray meet together where the ordinary ray and the extraordinary ray exit from the set via the output surface.
REFERENCES:
patent: 3383460 (1968-05-01), Pritchard
patent: 3430048 (1969-02-01), Rubinstein
patent: 3719414 (1973-03-01), Wentz
patent: 4841234 (1989-06-01), Aoshima et al.
patent: 4866372 (1989-09-01), Aoshima et al.
Asakura Tsutou
Furuya Masato
Nakagaki Shintaro
Shinonaga Hirohiko
Takanashi Itsuo
Karlsen Ernest F.
Victor Company of Japan Ltd.
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