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US 7,612,332 B2Granted
Optical module with integrated source of light
AssigneeSiemens VDO Automotive Corporation
InventorsHenryk Frenzel, Harald Schmidt
Life of this patent
Estimating the term…
Abstract
An optical module includes a lens arrangement which is used to project electromagnetic radiation to a semiconductor element and a light source disposed in the surrounding area of the radiation inlet area of the lens arrangement. The lens arrangement and the light source are provided with a covering which is permeable to electromagnetic radiation. The covering is provided with a radiation barrier that blocks the radiation which is emitted by the light source and prevents a direct injection of radiation which is emitted by the light source into the lens arrangement.
Claims14
An optical module, comprising:
- a semiconductor element forming an image sensor;
- a lens arrangement for projecting electromagnetic radiation onto said image sensor, said lens arrangement having a radiation inlet area;
- a light source disposed within a surrounding area of said radiation inlet area of said lens arrangement;
- a cover enclosing said lens arrangement and said light source, said cover being permeable to the electromagnetic radiation;
- a radiation barrier integrated into said cover, said radiation barrier being impermeable to radiation emitted by said light source and being disposed to prevent direct injection of radiation emitted by said light source into said lens arrangement and to prevent light injected into said cover from entering said radiation inlet area in a transverse direction.
2 more elements
Dependencies are inferred from the claim text.