Aimable motion-activated lighting fixture with angulated field

Details Aimable motion-activated lighting fixture with angulated field Aimable motion-activated lighting fixture with angulated field

2008-05-20

2008-05-20

Epps, Georgia Y. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S239000, C340S567000, C362S276000

Reexamination Certificate

active

07375313

ABSTRACT:
A motion-activated light fixture having an aimable motion detector with a zonal configuration providing improved monitoring of the region behind the motion detector. In one embodiment the motion detector defines a first plurality of generally forward-looking detection zones for monitoring the region in front of and to the sides of the motion detector, the forward-looking detection zones having a side-to-side coverage angle of at most 180 degrees and having forward zones for monitoring the far region in front of the motion detector. A second plurality of detection zones for monitoring the region behind the motion detector forms a zonal pattern angulated with respect to the zones of the first plurality monitoring the far region. At least some of the detection zones of the second plurality extend generally in the backward direction although in some embodiments the motion detector head must be tilted down through a pre-established offset angle before the angulated zonal pattern begins to look backward. The motion detector may also have other detection zones forming zonal patterns monitoring intermediate regions. The backward looking detection zones are defined so as to look sufficiently downward that the amount they are shifted to angle upwards as the motion detector housing is angled downward is limited to a useful range so that individual detection zones are not rendered useless or detrimental by being aimed too high. Configurations of zonal patterns are provided for improved monitoring of the region behind the motion detector without compromising the ability to aim the motion detector's forward-looking far zones.

REFERENCES:
patent: 4752769 (1988-06-01), Knaup et al.
patent: 4757204 (1988-07-01), Baldwin et al.
patent: 4841284 (1989-06-01), Biersdorff
patent: 4873469 (1989-10-01), Young et al.
patent: 5066855 (1991-11-01), Lee
patent: 5381323 (1995-01-01), Osteen et al.
patent: 5393978 (1995-02-01), Schwarz
patent: 5649761 (1997-07-01), Sandell et al.
patent: 5662411 (1997-09-01), Haslam et al.
patent: 5677529 (1997-10-01), Hofmann et al.
patent: 5818337 (1998-10-01), Erismann
patent: 6175309 (2001-01-01), Drake et al.
patent: 6215399 (2001-04-01), Shpater
patent: 2003/0080296 (2003-05-01), Raper et al.
“CM 0.77 GI VX,” Fresnel Technologies Inc. [online] (1995-2000) [retrieved prior to Nov. 2003] Retrieved from the internet, URL: http://www.fresneltech.com/pdf/CMO.77GIVX.pdf.
“Various PIR Arrays,” Fresnel Technologies Inc. [online] (1991-2000) [retrieved prior to Nov. 2003] Retrieved from the internet, URL: http://www.fresneltech.com/pdf/variousArrays.pdf.

Affiliated with

Also associated with

Rating

Aimable motion-activated lighting fixture with angulated field does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aimable motion-activated lighting fixture with angulated field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aimable motion-activated lighting fixture with angulated field will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2811684