Trimmer iris for use with a digitally shape-controlled...

Optical: systems and elements – Optical modulator – Light wave temporal modulation

Reexamination Certificate

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C359S292000

Reexamination Certificate

active

06549324

ABSTRACT:

BACKGROUND
U.S. Patent Applications and co-pending patents by Light and Sound Design describe a stage lighting system which is run by stage lighting luminaries. Each of the luminaries includes a digitally controlled light shape altering device. The specific light shape altering device is the Texas Instruments digital micromirror device or “DMD”. This device is digitally controlled to produce shape altering outputs as well as effects on the light.
SUMMARY
The present invention teaches a special trimmer iris, structure of the iris and aspects of use of such a trimmer iris, which produces advantages in a digitally controlled, pixel level device such as a DMD.


REFERENCES:
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patent: 4889424 (1989-12-01), Saiki
patent: 5379083 (1995-01-01), Tomita
patent: 5597223 (1997-01-01), Watanabe et al.
patent: 5909204 (1999-06-01), Gale et al.
patent: 6220730 (2001-04-01), Hewlett et al.
patent: 6433348 (2002-08-01), Abboud et al.

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