Variable intensity dimmer

Details Variable intensity dimmer Variable intensity dimmer

2004-09-14

2008-10-21

Lavarias, Arnel C (Department: 2872)

Optical: systems and elements

Absorption filter

Superimposed or series

C359S888000, C359S227000

Reexamination Certificate

active

07440205

ABSTRACT:
A dimming system (300) for dimming electromagnetic radiation intensity of a radiating unit, such as e.g., an optical system. The dimming system (300) is adjusted to provide a constant electromagnetic radiation intensity over the cross-section of the impinging electromagnetic radiation beam by providing at least two dimming units (320, 330) each having a spatially variable position-dependent dimming behavior, such that the degree of dimming for the whole cross-section can be chosen to be a fixed selectable dimming factor. The dimming units (320, 330) may be based on spatially variable position-dependent dimming devices based on transparent substrates having a coating with a position-dependent varying transmission/reflection coefficient, on spatially variable position-dependent diffusing devices or on polarizer devices.

REFERENCES:
patent: 3538335 (1970-11-01), Tartanian
patent: 3848122 (1974-11-01), Hutchison
patent: 4290473 (1981-09-01), Pierson et al.
patent: 5329350 (1994-07-01), Wright et al.
patent: 5515119 (1996-05-01), Murdock et al.
patent: 6580560 (2003-06-01), Benner, Jr.
patent: 2002/0027664 (2002-03-01), Hyers et al.
patent: 2003/0035290 (2003-02-01), Bornhorst
patent: 2003/0072161 (2003-04-01), Hough et al.
patent: 2003/0086265 (2003-05-01), Ilsaka et al.
patent: 2004/0027539 (2004-02-01), Plunkett
patent: 2004/0037082 (2004-02-01), Schmidt
Patent Abstracts of Japan, vol. 018, No. 541, Oct. 14, 1994 & JP 06 194585, Jul. 15, 1994.
Patent Abstracts of Japan, vol. 1997, No. 11, Nov. 28, 1997 & JP 09 197302, Jul. 31, 1997.
Patent Abstracts of Japan, vol. 017, No. 646, Nov. 30, 1993 & JP 05 207384, Aug. 13, 1993.

Affiliated with

Also associated with

Rating

Variable intensity dimmer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable intensity dimmer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable intensity dimmer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4001573