Flat band optical relay using apertures and simple lenses

Details Flat band optical relay using apertures and simple lenses Flat band optical relay using apertures and simple lenses

1988-06-14

1988-11-15

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356331, G01J 328, G01J 310

Patent

active

047844876

ABSTRACT:
An optical relay having a pair of simple lenses and an opaque barrier defining an aperture. In a spectrometer, the optical relay is positioned between a light source and an opaque barrier defining a slit to focus light of a reference wavelength w.sub.r onto the slit. The location of the aperture and the choice of w.sub.r are selected so that the flux of light through the slit is substantially flat as a function of wavelength.

REFERENCES:
patent: 2630736 (1953-03-01), Beitz
patent: 3547542 (1970-12-01), Bulpitt et al.
patent: 3886331 (1975-05-01), Schierer, Jr.
Kingslake, "Lens Design Fundamentals" Academic Press (1978) pp. 89-92.
Gilbert, Jr., "Optimizing Monochromator Performance" Electro-Opt. Syst. Des. (U.S.A.) vol. 7, #2, Feb. 1975, pp. 25-31.

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