Spectrometer

Details Spectrometer Spectrometer

1989-05-19

1990-11-13

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356328, 356308, 356334, G01J 318

Patent

active

049697404

ABSTRACT:
A dispersion-type spectral element designed for reflecting an incident sample light is rotated by a drive mechaism. The sample light reflected by the element is applied to a sample-light receiving device. The device converts the light into a first signal representing the intensity of the sample light. Reference light consisting of beams having various wavelengths over a broad range is supplied from a reference light source to the spectral element. Further, standard light consisting of one beam of a known wavelength is also supplied from a standard light source to the spectral element. The reference light reflected by the element is applied to a reference-light receiving device. The reference-light receiving device converts the reference light into a second signal representing the intensity of the light. An etalon is located in the optical path between the spectral element and the reference-light receiving device. The standard light reflected by the element is applied to the standard-light receiving device. The standard-light receiving device converts the standard light into a third signal representing the intensity of the standard light. An arithmetic unit receives the first, second, and third signals separately, and obtains from the second and third signals a wavelength scale used for calculating from the first signal the wavelength of the sample light.

REFERENCES:
patent: 2723589 (1955-11-01), Bullock et al.
patent: 4643572 (1987-02-01), Sonobe et al.
patent: 4743114 (1988-05-01), Crane, Jr.
patent: 4758086 (1988-07-01), Sonobe et al.
Fredrickson, The Review of Scientific Instruments, vol. 44, No. 1, Jan. 1973, pp. 52-55.

Affiliated with

Also associated with

Rating

Spectrometer does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-773204