Method and apparatus for determining the bulb temperature of...

Details Method and apparatus for determining the bulb temperature of... Method and apparatus for determining the bulb temperature of...

2008-05-27

2008-05-27

Verbitsky, Gail (Department: 2855)

Thermal measuring and testing

Temperature measurement

In spaced noncontact relationship to specimen

C374S141000

Reexamination Certificate

active

11298655

ABSTRACT:
An inventive method for determining the bulb temperature (T) of high pressure discharge lamps is disclosed that comprises the following steps: ascertaining a first spectral radiant power (MP) at a first wavelength (λP); ascertaining a second spectral radiant power (MC) at a second wavelength (λC) different from the first; determining the quotient (β) from the first and second radiant power; and determining the temperature (T) of the bulb on the basis of this quotient. It likewise discloses an apparatus for carrying out the inventive method.

REFERENCES:
patent: 4247202 (1981-01-01), Failes
patent: 4720190 (1988-01-01), Peterson
patent: 4922089 (1990-05-01), McGuire et al.
patent: 6365899 (2002-04-01), Arai et al.
patent: 7001068 (2006-02-01), Howard
patent: 1265417 (1972-03-01), None

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