Infrared radiation detecting systems

Details Infrared radiation detecting systems Infrared radiation detecting systems

1983-10-12

1985-12-10

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250330, 250332, 350 13, G01J 508

Patent

active

045582220

ABSTRACT:
An infrared radiation detecting system comprises an optical imaging system (25) for receiving radiation from a field of view (23) and delivering that radiation to an image surface (16). A background limited detector unit (26) having a detecting surface (.phi.) located in a cold shield housing having a cooled aperture (13) is spaced from image surface (16) and a transfer lens system (24) is interposed to transfer infrared radiation therebetween. Lens system (24) is arranged to focus the radiation at the detecting surface (.phi.) of the detector unit (26) such that the focussed radiation field curvature coincides with the physical curvature of detecting surface (.phi.), to form a pupil which is coincident in space with the position of the cooled aperture (13) and to dimension the pupil to match the dimension of the cooled aperture (13). To achieve these effects the transfer lens system (24) is formed by four lens elements (A,B,C,D) of selected power, axial spacing, and refractive surface curvature.

REFERENCES:
patent: 3915547 (1975-10-01), Scidmore et al.
patent: 4383173 (1983-05-01), Neil et al.
patent: 4507551 (1985-03-01), Howard et al.

Affiliated with

Also associated with

Rating

Infrared radiation detecting systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-60683