Light-collimating film

Details Light-collimating film Light-collimating film

1991-05-28

1993-04-20

Loney, Donald J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428 68, 428120, 428141, 428142, 428156, 428161, 428163, 428168, 428172, 428173, 428201, 428203, 428204, 428206, 428207, 428409, 428212, 4289088, 428913, 351 47, 351165, 351166, 359321, 359614, 359641, 359738, B32B 328

Patent

active

052041603

ABSTRACT:
A plastic film has a series of grooves the interiors of which are rendered light absorbing to form a light-collimating film.

REFERENCES:
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patent: 4025673 (1977-05-01), Reinnagel
patent: 4127693 (1978-11-01), Lemelson
patent: 4553818 (1985-11-01), Cohen
patent: 4621898 (1986-11-01), Cohen
patent: 4621898 (1986-11-01), Cohen

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