Operating-room light with variable illumination

Details Operating-room light with variable illumination Operating-room light with variable illumination

1985-08-12

1986-11-11

Scott, Samuel

Illumination

Light source and modifier

Including reflector

362297, 362346, 362804, F21V 704

Patent

active

046226257

ABSTRACT:
To permit, selectively, illumination of an operating-room field for depth illumination in a path of radiation which may differ from field illumination, a ring-shaped full reflector (3) is located in a reflective position with respect to a light source (1, 2), and, in advance of the main, fully reflective mirror, a mirror system is located which has apertures which can be selectively covered or uncovered with a further mirror element (6, 13, 19) so that the amount of light passing through the apertures of the second mirror system through the first mirror system can be varied, and the path of light controlled in accordance with the relative position of the mirror systems, while the intensity of light reflected by the respective mirror systems is controlled by the positioning of the movable element of the second mirror system with respect to the fixed one.

REFERENCES:
patent: 1305498 (1919-06-01), Schroeder
patent: 3510206 (1970-05-01), Smith
patent: 4040726 (1977-08-01), Paca

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