Method of locating a light at the focal point of a concave mirro

Details Method of locating a light at the focal point of a concave mirro Method of locating a light at the focal point of a concave mirro

1977-02-22

1978-10-03

Corbin, John K.

Optics: measuring and testing

Focal position of light source

316 23, 356255, 362285, G01J 100

Patent

active

041181263

ABSTRACT:
A method of locating the filament of a light bulb at the focal point of a parabolic reflector comprising the steps of placing an optical instrument into the electrical socket for the light bulb, positioning the electrical socket and optical instrument until a reticle of the optical instrument is situated at the focal point of the parabolic reflector, and replacing the optical instrument by a light bulb.

REFERENCES:
patent: 2002477 (1935-05-01), Merkel
patent: 2520866 (1950-08-01), Wells
patent: 3418052 (1968-12-01), Hoffmann

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