Detector with coated lens assembly

Details Detector with coated lens assembly Detector with coated lens assembly

2006-04-11

2006-04-11

Hannaher, Constantine (Department: 2878)

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

Reexamination Certificate

active

07026619

ABSTRACT:
A spark detector lens assembly is adapted to block energy from static electric discharges. The lens assembly includes a housing which receives a lens. The lens is adapted to pass infrared frequency energy therethrough. A conductive coating is disposed on one side of said lens, which is effective to block radio frequency energy but pass infrared frequency energy. The conductive coating may be electrically connected to an electrical ground path. The lens assembly is especially effective for preventing false alarms by shielding a spark detector from radio frequency energy radiated by static electric discharges.

REFERENCES:
patent: 4065600 (1977-12-01), King et al.
patent: 4394572 (1983-07-01), Wilber
patent: 4415806 (1983-11-01), Tar
patent: 4855718 (1989-08-01), Cholin et al.
patent: 4985719 (1991-01-01), Tsurukawa et al.
patent: 5061026 (1991-10-01), Clarke et al.
patent: 5358787 (1994-10-01), Fontana et al.
patent: 5486847 (1996-01-01), Ranf et al.
patent: 5629074 (1997-05-01), Klocek et al.
patent: 5752914 (1998-05-01), Delonzor et al.
patent: 6184521 (2001-02-01), Coffin, IV et al.
patent: 6288637 (2001-09-01), Thomas et al.
patent: 6448158 (2002-09-01), Peng et al.
“ITO, Tin-Doped Indium Oxide For Optical Coating”, Cerac Incorporated [online], 2000 [retrieved on Feb. 18, 2005], Retreived from internet: http://www.cerac.com/pubs/proddata/ito.htm.
“Emi/rfi shielding—Laminated Windows”, Optical Filters [online], 2002 [retrieved on Feb. 19, 2005], Retreived from internet: http://www.opticalfilters.co.uk/products/laminations/emirfishieldinglaminatedwindows.htm.
David Carter, “RFI Shielded Windows”, Tecknit Europe Ltd. May 2003 [retreived on Feb. 18, 2005] retrieved from internet: www.twp-europe.co.uk/catalog/windowsguide.pdf.

Affiliated with

Also associated with

Rating

Detector with coated lens assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3574388