Thermally induced pressure operated optical switch and...

Details Thermally induced pressure operated optical switch and... Thermally induced pressure operated optical switch and...

2006-12-12

2006-12-12

Healy, Brian M. (Department: 2883)

Optical waveguides

With optical coupler

Switch

C385S017000, C385S018000, C385S015000, C385S036000, C385S901000

Reexamination Certificate

active

07149380

ABSTRACT:
A thermally induced pressure operated optical switch (3) includes a prism (31), and a substrate (32) disposed below the prism. The substrate defines a plurality of switch elements (35). Each switch element includes a first chamber (351), a second chamber (352) containing matching liquid (36) having a reflective index substantially the same as that of the prism, and a thermal pressure generator (37) communicating with the second chamber for causing the matching liquid to flow between the first and second chambers. The switch elements are arranged in an array in like manner to the way pixels of a display device are arranged. Thus, the thermal pressure generators can be selectively turned on and off, in order to control the switch elements to manipulate optical beams for displaying all kinds of images. The optical switch can be employed in a display device, a projector, or like apparatuses.

REFERENCES:
patent: 4521683 (1985-06-01), Miller
patent: 6072924 (2000-06-01), Sato et al.
patent: 6188815 (2001-02-01), Schiaffino et al.
patent: 6470106 (2002-10-01), McClelland et al.
patent: 6829079 (2004-12-01), Oda et al.
patent: 7027683 (2006-04-01), O'Connor et al.

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