Energy-efficient headlamp

Details Energy-efficient headlamp Energy-efficient headlamp

1996-04-03

1999-02-09

Spyrou, Cassandra C.

Optical: systems and elements

Mirror

Plural mirrors or reflecting surfaces

359851, 359853, 359858, 359859, 359857, 362296, 362299, 362304, G02B 508, G02B 7182, G02B 510

Patent

active

058702350

ABSTRACT:
A reflector assembly is provided for efficiently collecting and forming the electromagnetic radiation from a radiation source into a desired beam pattern. The reflector assembly uses a smaller non-symmetrical generally convex reflector and a larger non-symmetrical generally concave reflector. The generally convex reflector intercepts a large fraction of light emitted by the source that would otherwise escape without interacting with the assembly and redirects this light onto the generally concave reflector for eventual inclusion in the beam.

REFERENCES:
patent: 1469690 (1923-10-01), Smith
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patent: 1938600 (1933-12-01), Marsat
patent: 1967342 (1934-07-01), Upmeyer
patent: 1970345 (1934-08-01), Speranza
patent: 2228476 (1941-01-01), Murray
patent: 2589569 (1952-03-01), Peter et al.
patent: 2755374 (1956-07-01), Ott et al.
patent: 2981827 (1961-04-01), Orsatti et al.
patent: 3536908 (1970-10-01), Oster
patent: 4037096 (1977-07-01), Brendgord et al.
patent: 4084215 (1978-04-01), Willenbrock

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