US 12,460,790 B2
Illumination apparatus
Erwin Melzner, Frasdorf (DE); Volker Schumacher, Bad Waldsee (DE); and Frank Hendricks, Bad Waldsee (DE)
Assigned to ARNOLD & RICHTER CINE TECHNIK GMBH & CO. BETRIEBS KG, Munich (DE)
Filed by Arnold & Richter Cine Technik Gmbh & Co. Betriebs KG, Munich (DE)
Filed on Jun. 21, 2024, as Appl. No. 18/749,981.
Claims priority of application No. 102023116459.7 (DE), filed on Jun. 22, 2023.
Prior Publication US 2024/0426460 A1, Dec. 26, 2024
Int. Cl. F21V 5/00 (2018.01); F21V 17/00 (2006.01); F21Y 105/16 (2016.01); F21Y 113/13 (2016.01); F21Y 115/10 (2016.01)
CPC F21V 5/007 (2013.01) [F21V 17/002 (2013.01); F21Y 2105/16 (2016.08); F21Y 2113/13 (2016.08); F21Y 2115/10 (2016.08)] 28 Claims
OG exemplary drawing
 
1. An illumination apparatus, comprising:
an LED light generating device comprising groups of differently colored LEDs spatially distributed on an emission surface of a substrate for the generation of light, the generated light being emitted from the emission surface of the LED light generating device through a transparent and resistant protective screen of the LED light generating device; and
a replaceable light shaping device mounted in front of the transparent and resistant protective screen of the LED light generating device for shaping the light emitted from the emission surface of the LED light generating device, the replaceable light shaping device comprising a replaceable spot optic device configured to shape the light emitted from the emission surface of the LED light generating device for the generation of light with a small half-scatter angle of less than 45 degrees, the spot optic device including a two-dimensional field of juxtaposed replaceable or fixedly mounted multi-lens optical systems, each of which is arranged above a corresponding group of LEDs of the LED light generating device, the multi-lens optical systems of the spot optic device each including a first optical component which collimates the light emitted by the corresponding group of LEDs of the LED light generating device, a second optical component arranged above the first optical component and configured to mix the light emitted by the differently colored LEDs of the group of LEDs and collected by the first optical component, and a third optical component arranged above the second optical component and configured to emit the color-mixed light from the second optical component with a predetermined light intensity distribution as light with a small half-scatter angle; and
a plurality of controllable actuators, each of the plurality of controllable actuators configured to adjust a distance between the third optical component and the second optical component of a corresponding one of the multi-lens optical systems.