US 12,241,605 B2
Method for constructing an optical functional unit
Bernd Fischer, Altenbeken (DE); and Thorsten Kleinelümern, Langenberg (DE)
Assigned to Hella GmbH & Co. KGaA, Lippstadt (DE)
Filed by Hella GmbH & Co. KGaA, Lippstadt (DE)
Filed on Jul. 10, 2024, as Appl. No. 18/768,596.
Claims priority of application No. 102023118666.3 (DE), filed on Jul. 14, 2023.
Prior Publication US 2025/0020297 A1, Jan. 16, 2025
Int. Cl. F21S 41/29 (2018.01); F21S 41/19 (2018.01); F21S 43/27 (2018.01)
CPC F21S 41/192 (2018.01) [F21S 41/29 (2018.01); F21S 43/27 (2018.01)] 10 Claims
OG exemplary drawing
 
1. A method for constructing an optical functional unit that has an optical component, the optical component having a surface through which light passes, to at least part of which surface an opaque coating is applied, wherein portions of the opaque coating are to be removed from the surface such that at least one window is formed through which the light from at least one light source can pass, wherein the at least one light source is part of a light module, and the method comprises at least the following steps:
providing a frame that has at least two reference points;
placing the optical component on the frame;
detecting the reference points on the frame with an optical sensor;
calculating the positions of the windows on the surface through which light passes in relation to the reference points with a control unit;
removing portions of the opaque coating using a laser beam source to create the at least one window; and
placing the light module in alignment with the reference points on the frame.