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US 7,583,451 B2Granted
Lens for an optical module of a lighting apparatus for a motor vehicle
AssigneeValeo Vision
InventorSébastien Casenave
Life of this patent
Estimating the term…
Abstract
The invention provides a lens for an optical module adapted to be mounted in a lighting apparatus for a motor vehicle. The lens comprises two distinct materials associated with each other and having different refractive indices.
Claims16
A lens for an optical module, adapted to be mounted in a lighting apparatus for a motor vehicle, comprising:
- a first lens portion comprising a first material;
- a second lens portion comprising a second material, said first and second materials being distinct materials, a forming temperature of the first material being at least 50° C. greater than a forming temperature of the second material;
- a light entry face comprising a first light entry face portion and a second light entry face portion, said first light entry face portion corresponding to said first lens portion and having a substantially flat portion, said second light entry face portion corresponding to said second lens portion and having a concave portion;
- and
- a light exit face.
2 more elements
An optical module adapted to be mounted in a lighting apparatus for a motor vehicle, comprising:
- a reflector;
- at least one light source that emits light rays and is disposed in said reflector;
- a lens comprising a first lens portion including a first material having a first refractive index, a second lens portion including a second material having a second refractive index greater than said first refractive index, a light entry face, and a light exit face;
- and
- a shield positioned between the reflector and the lens,
- a first portion of the emitted light exits said first lens portion at the light exit face at a first angle and forms a cut-off beam,
- a second portion of the emitted light exits said second lens portion at the light exit face at a second angle greater than said first angle and projects above the cut-off beam.
4 more elements
A lens for an optical module, adapted to be mounted in a lighting apparatus for a motor vehicle, comprising:
- a first lens portion comprising a first material;
- a second lens portion comprising a second material, a difference in refractive index between the first material and the second material being between 0.09 and 0.13;
- a light entry face comprising a first light entry face portion and a second light entry face portion, said first light entry face portion corresponding to said first lens portion and having a substantially flat portion, said second light entry face portion corresponding to said second lens portion and having a concave portion;
- and
- a light exit face.
2 more elements
A lens for an optical module, adapted to be mounted in a lighting apparatus for a motor vehicle, comprising:
- a first lens portion comprising a first material;
- a second lens portion comprising a second material having a reflective index different from a refractive index of said first material, at least of said first material and the second material comprises a polymer based matrix having particles disposed therein and the particles having a refractive index different from the matrix;
- a light entry face comprising a first light entry face portion and a second light entry face portion, said first light entry face portion corresponding to said first lens portion and having a substantially flat portion, said second light entry face portion corresponding to said second lens portion and having a concave portion;
- and
- a light exit face.
2 more elements
A lens for an optical module, adapted to be mounted in a lighting apparatus for a motor vehicle, comprising:
- a first lens portion comprising a first material;
- a second lens portion comprising a second material, said first and second materials being distinct materials, said second portion comprises a plurality of second portions spaced apart at regular intervals over at least a part of a peripheral zone of the lens;
- a light entry face comprising a first light entry face portion and a second light entry face portion, said first light entry face portion corresponding to said first lens portion and having a substantially flat portion, said second light entry face portion corresponding to said second lens portion and having a concave portion;
- and
- a light exit face.
2 more elements
Dependencies are inferred from the claim text.