Spotlight with an adjustable angle of radiation

Details Spotlight with an adjustable angle of radiation Spotlight with an adjustable angle of radiation

1997-12-04

1999-12-21

O'Shea, Sandra

Illumination

Light source and modifier

Plural serial lens elements or components

362270, 362296, 362306, 362285, 362319, F21V 1700

Patent

active

060040076

ABSTRACT:
A spotlight with an adjustable angle of radiation has a light source (4) and a reflector (5) associated with the light source (4). A first focusing lens (2) is positioned in a beam path of the light source-reflector combination (4, 5). A second focusing lens (6) is placed in the beam path between the light source (4) and the first focusing lens (2). The reflector (5), the light source (4), and the second focusing lens (6) are mounted as an optical unit that is movable relative to the first focusing lens (2), along an optical axis of the spotlight along which the beam path extends. Inside the optical unit, a distance between the light source (4) and the second focusing lens (6) is adjustable. In addition, inside the optical unit a distance between the light source (4) and the reflector (5) is adjustable.

REFERENCES:
patent: 2177639 (1939-10-01), Erickson
patent: 4823243 (1989-04-01), Weigert
patent: 5083253 (1992-01-01), Hahnel
patent: 5408398 (1995-04-01), Chang
patent: 5461554 (1995-10-01), Leonetti et al.

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