Optical arrangement with stepped lens
First Claim
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1. A stepped lens spotlight, comprising:
- a lamp;
a reflector; and
a stepped lens with a diffusing screen, the diffusing screen being arranged in a first region and the stepped lens is arranged in a second region, wherein the first and second regions occupy concentrically arranged surfaces having different diameters, andwherein an aperture angle of the light emerging from the stepped spotlight is settable between a flood position and a spot position, and wherein, in said flood position, a larger portion of light emitted by said lamp passes through said diffusing screen in comparison to said spot position.
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Abstract
The invention comprises an optical arrangement for illumination purposes, in particular for a stepped lens spotlight, comprising a stepped lens with a light-diffusing element, in particular a diffusing screen, in which the diffusing screen is arranged in a first region and the stepped lens is arranged in a second region, and in which, with the change in the shape of the light impinging on the optical arrangement and/or the size of the light illuminating the optical arrangement, it is possible to set the aperture angle of the light emerging from the optical arrangement, in particular between two limit values, a smaller αSp and a larger αF1.
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Citations
47 Claims
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1. A stepped lens spotlight, comprising:
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a lamp; a reflector; and a stepped lens with a diffusing screen, the diffusing screen being arranged in a first region and the stepped lens is arranged in a second region, wherein the first and second regions occupy concentrically arranged surfaces having different diameters, and wherein an aperture angle of the light emerging from the stepped spotlight is settable between a flood position and a spot position, and wherein, in said flood position, a larger portion of light emitted by said lamp passes through said diffusing screen in comparison to said spot position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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Specification