| US 7,483,220 B2 | ||
| Optical arrangement with stepped lens | ||
| Ruediger Kittelmann, Einbeck (Germany); and Harry Wagener, Alfeld (Germany) | ||
| Assigned to Auer Lighting GmbH, Bad Gandershiem (Germany) | ||
| Appl. No. 10/584,023 PCT Filed Dec. 22, 2004, PCT No. PCT/EP2004/014642 § 371(c)(1), (2), (4) Date May 25, 2007, PCT Pub. No. WO2005/061956, PCT Pub. Date Jul. 07, 2005. |
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| Claims priority of application No. 103 61 117 (DE), filed on Dec. 22, 2003; application No. 103 61 121 (DE), filed on Dec. 22, 2003; and application No. 103 61 122 (DE), filed on Dec. 22, 2003. | ||
| Prior Publication US 2007/0279911 A1, Dec. 06, 2007 | ||
| Int. Cl. G02B 3/08 (2006.01); G02B 27/02 (2006.01); F21V 5/00 (2006.01); F21V 11/00 (2006.01) | ||
| U.S. Cl. 359—742 [359/799; 362/326; 362/355] | 47 Claims |
| 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,
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.
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