Optical module comprising a light source and a single-piece optical component

Abstract

The invention relates to an optical module (1) comprising at least one light source (10) and a one-piece optical element (11), the one-piece optical element (11) comprising an input portion (110) having an input face (110a), a bending element (111) comprising a first face (111a) of total internal reflection delimited by an edge (111b) intended to form a cut in the beam and an output portion (112) having an output face (112a), and the input portion (110) is arranged to focus rays emitted by the light source (10) and entering through the input face (110a) towards said edge (111b); The output portion (112) comprises a second parabolic total internal reflection surface (112b) having a focal zone located at the edge (111b) so as to project, through the output face (112a), a beam having a cutoff formed by the edge (111b). Figure to be published with the abbreviation: Fig. 1a

Claims

(114) arranged to focus the light rays (R) emitted by the light source (10) onto the edge (111b) of the folder (111).

5. Optical module (1) according to claim 1 or 2, characterized in that the input portion (110) comprises a focusing member (114) arranged to converge the light rays (R) emitted by the light source, and a flat reflecting surface (110.2) configured to reflect the converging light rays (R) towards the folder (111), and cooperating with the focusing member (114) so ​​that the reflected converging light rays (R) are focused on the edge (111b) of the folder (111).

6. Optical module (1) according to any one of the preceding claims, characterized in that the bending machine (111) is arranged to reflect light rays (R) by total internal reflection.

7. Optical module (1) according to any one of the preceding claims, characterized in that the edge (111b) of the folder (111) has a step (lllb.l).

8. Optical module (1) according to any one of the preceding claims, characterized in that the output face (112a) is flat, and is arranged perpendicular to a direction of propagation of the light rays (R) reflected by the second internal total reflection surface.

9. Optical module (1) according to any one of the preceding claims, characterized in that the output face (112a) of the output portion (112) comprises at least one pad.

10. Optical module (1) according to any one of the preceding claims, characterized in that the one-piece optical part (11) is made of plastic.

11. Optical device comprising at least one optical module (1) according to any one of claims 1 to 9. lPiS- la] 112a in 111b 112a / 110

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