Operating-room light with variable illumination
First Claim
1. Operating-room light havinga light source (1);
- a first, fully reflective main mirror system (3) located in the path of light from the source and directing light from the source in a predetermined direction (A, B) to provide an illuminated field;
a second mirror system (4, 42,
43) which is partially light transmissive and partially light reflective, said second mirror system being located in the path of light between the source (1) and the first, or main mirror system (3), and directing light from the source in a path (C, C'"'"', C") which at least partially overlaps the illuminated field, and having meanswhereby, in accordance with the invention,the ratio of the proportion of light being transmitted with respect to the portion of light being reflected by said second mirror system is adjustable and controllably variable.
1 Assignment
0 Petitions
Accused Products
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.
22 Citations
12 Claims
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1. Operating-room light having
a light source (1); -
a first, fully reflective main mirror system (3) located in the path of light from the source and directing light from the source in a predetermined direction (A, B) to provide an illuminated field; a second mirror system (4, 42,
43) which is partially light transmissive and partially light reflective, said second mirror system being located in the path of light between the source (1) and the first, or main mirror system (3), and directing light from the source in a path (C, C'"'"', C") which at least partially overlaps the illuminated field, and having meanswhereby, in accordance with the invention, the ratio of the proportion of light being transmitted with respect to the portion of light being reflected by said second mirror system is adjustable and controllably variable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification