Optical temperature indicator using thermochromic semiconductors

Details Optical temperature indicator using thermochromic semiconductors Optical temperature indicator using thermochromic semiconductors

1995-01-03

1996-03-19

Gutierrez, Diego F. F.

Signals and indicators

Indicators

Temperature responsive or compensating means

252962, 2524081, 374162, G01K 102, G01K 1112

Patent

active

054995973

ABSTRACT:
A reversible optical temperature indicator utilizes thermochromic semiconductors which vary in color in response to various temperature levels. The thermochromic material is enclosed in an enamel which provides protection and prevents breakdown at higher temperatures. Cadmium sulfide is the preferred semiconductor material. The indicator may be utilized as a sign or in a striped arrangement to clearly provide a warning to a user. The various color responses provide multiple levels of alarm.

REFERENCES:
patent: 1657103 (1928-01-01), Berger
patent: 1924793 (1933-08-01), Laske
patent: 2308087 (1943-01-01), Lappala
patent: 2945305 (1960-07-01), Strickler
patent: 3348917 (1967-10-01), Nestor
patent: 3352794 (1967-11-01), Abdo
patent: 3561269 (1971-02-01), Seitz
patent: 3781523 (1973-12-01), Borom
patent: 3822594 (1974-07-01), Parker
patent: 3898354 (1975-08-01), Parker
patent: 4105583 (1978-08-01), Glover et al.
patent: 4268413 (1981-05-01), Dabisch
patent: 4278349 (1981-07-01), Sander
patent: 4283113 (1981-08-01), Eden
patent: 4424990 (1984-01-01), White et al.
patent: 4509533 (1985-04-01), Chervitz
patent: 4629330 (1986-12-01), Nichols
patent: 4863282 (1989-09-01), Rickson
patent: 4945919 (1990-08-01), Hattori
patent: 5008136 (1991-04-01), Chamberlain
patent: 5165797 (1992-11-01), Kuroda et al.
Day, Jesse H., "Thermochromism of Inorganic Compounds," Chemical Reviews, pp. 649-657 (Nov. 25, 1968).

Affiliated with

Also associated with

Rating

Optical temperature indicator using thermochromic semiconductors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical temperature indicator using thermochromic semiconductors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical temperature indicator using thermochromic semiconductors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1953774