Pyroelectric type infrared sensor

Details Pyroelectric type infrared sensor Pyroelectric type infrared sensor

1994-09-22

1996-10-22

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

2503383, G01J 508

Patent

active

055679412

ABSTRACT:
An object of the invention is to provide a pyroelectric type infrared sensor without external lens, made in a compact size, and having an improved sensibility. A pyroelectric element for detecting infrared rays is provided in a sealed tube (sealed body) having an opening, at said opening is provided an incident infrared ray filter. A diffraction optical lens (diffraction optical element) for focusing or imaging infrared rays is provided on the front or back surface of said incident infrared ray filter.

REFERENCES:
patent: 4445759 (1984-05-01), Valette
patent: 4682030 (1987-07-01), Rose et al.
patent: 4717821 (1988-01-01), Messiou
patent: 4800278 (1989-01-01), Taniguti et al.
patent: 4854730 (1989-08-01), Fraden
patent: 5073007 (1991-12-01), Kedmi et al.
patent: 5315434 (1994-05-01), Mizuno et al.
patent: 5401968 (1995-03-01), Cox
T. Werner et al., SPIE, vol. 1544, pp. 46-57 (1991).
Patent Abstracts of Japan, Unexamined Applications, P Field, vol. 12, No. 51, Feb. 16, 1988.

Affiliated with

Also associated with

Rating

Pyroelectric type infrared sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2360438