Target for calibrating and testing infrared devices

Details Target for calibrating and testing infrared devices Target for calibrating and testing infrared devices

1993-01-21

1994-06-28

Hannaher, Constantine

Radiant energy

Calibration or standardization methods

2503381, 374 1, 374 2, G01D 1800

Patent

active

053249372

ABSTRACT:
An improved target for testing and calibrating a detection device. The target (10) includes a metal substrate (12) with a first layer (14) of high emissivity material and a second layer (16) of low emissivity material are deposited thereon. In the specific implementation, the substrate (12) is copper, the first layer (14) is chromium-oxide and the second layer (16) is chrome. In the illustrative embodiment, an aperture (22) is drilled through the substrate (12) and the first and second layers (14, 16) thereon. An infrared emitter (20) is located at the aperture (22) to provide point source radiation. A conventional heater (26) is applied to the back surface of the target. A pattern is etched on second layer (16) on the front surface of the target using electron beam lithography. The use of a metal substrate (12) allows for the drilling of small holes more easily than in the conventional target. In addition, the metal substrate (12) provides good temperature uniformity without use of a separate metal plate due to the higher thermal conductivity of metal over glass. The elimination of the separate metal plate also simplifies target assembly and reduces target costs.

REFERENCES:
patent: 3986384 (1976-10-01), Giorgi
patent: 4387301 (1983-06-01), Wirick et al.
patent: 4480372 (1984-11-01), Wirick et al.
patent: 4549814 (1985-10-01), Creel et al.

Affiliated with

Also associated with

Rating

Target for calibrating and testing infrared devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Target for calibrating and testing infrared devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Target for calibrating and testing infrared devices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2378812