Lighting and/or signalling device with optical guide for a motor vehicle
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G02B-006/10
G02B-006/00
F21V-007/04
F21V-007/00
출원번호
US-0150784
(2005-06-10)
등록번호
US-7437050
(2008-10-14)
우선권정보
FR-04 06375(2004-06-11); FR-04 06376(2004-06-11)
발명자
/ 주소
Bourdin,David
De Lamberterie,Antoine
출원인 / 주소
Valeo Vision
대리인 / 주소
Morgan & Finnegan LLP
인용정보
피인용 횟수 :
5인용 특허 :
11
초록▼
The invention concerns a lighting and/or signalling device for a motor vehicle comprising at least one light source emitting a light beam and at least one optical guide in which the light beam propagates, said optical guide comprising an output face for the light beam, and another reflection face, o
The invention concerns a lighting and/or signalling device for a motor vehicle comprising at least one light source emitting a light beam and at least one optical guide in which the light beam propagates, said optical guide comprising an output face for the light beam, and another reflection face, opposite to the output face, having a serrated profile forming a reflection face for the light beam, notably comprising a series of prisms, each prism forming, with the following prism (8), a bottom angle (D). At least one bottom angle of the reflection face is truncated, and/or in that the output face has a profile comprising flutes.
대표청구항▼
The invention claimed is: 1. A device for a motor vehicle comprising: at least one light source in a motor vehicle signal light or headlight configured to emit a light beam and at least one optical guide in which the light beam propagates, said optical guide comprising: an output face for the light
The invention claimed is: 1. A device for a motor vehicle comprising: at least one light source in a motor vehicle signal light or headlight configured to emit a light beam and at least one optical guide in which the light beam propagates, said optical guide comprising: an output face for the light beam comprising flutes of uniform size and shape, and a reflection face, opposite to the output face, having a serrated profile forming a reflection face for the light beam; wherein the reflection face comprises a series of prisms, each prism forming, with the following prism, a bottom angle, said at least one bottom angle of the reflection face being truncated, the size of the truncated area being variable from one angle to another. 2. The device of claim 1, wherein the size of the truncated areas of the reflection face decreases as the distance from the light source increases. 3. The device of claim 1, wherein the reflection face comprises both prisms with a truncated bottom angle and prisms with a non truncated bottom angle. 4. The device of claim 1, wherein the prisms of the reflection face have variable pitches and a constant height. 5. The device of claim 1, wherein the prism of the reflection face have a constant pitch and variable heights. 6. The device of claim 4, wherein the pitch of the prisms of the reflection faced has a size less than or equal to 2.5 millimeters, in particular of the order of 0.2 to 2 millimeters. 7. The device of claim 4, wherein the height of the prisms of the reflection face is less than or equal to 2.5 millimeters, in particular of the order of 0.2 to 2 millimeters. 8. The device of claim 1, wherein the prisms of the reflection face are symmetrical. 9. The device of claim 1, wherein the prisms of the reflection face are dissymmetrical. 10. The device of claim 1, wherein each flute of the output face is situated opposite a prism of the reflection face. 11. The device of claim 1, wherein it comprises at least two light sources each placed at one end of the optical guide. 12. The device of claim 1, wherein it comprises several optical guides having a common intersection, at least one light source being situated at this intersection point. 13. The device of claim 5, wherein the pitch of the prisms of the reflection face has a size less than or equal to 2.5 millimeters, in particular of the order of 0.2 to 2 millimeters. 14. A device for a motor vehicle comprising: at least one light source in a motor vehicle signal light or headlight configured to emit a light beam and at least one optical guide in which the light beam propagates, said optical guide comprising: a substantially cylindrical cross-section and a curvilinear shape along its length; an output face for the light beam, and a reflection face, opposite to the output face, having a serrated profile made up of a plurality of prisms having planar facets forming a reflection face for the light beam; wherein the output face has a profile comprising flutes of uniform shape and size. 15. The device of claim 14, wherein the flutes have a curved shape, in particular in an arc of a circle. 16. The device of claim 14, wherein the flutes have the shape of a prism, in particular with plane facets. 17. The device of claim 16, wherein the prisms of the output face are symmetrical or dissymmetrical. 18. The device of claim 14, wherein the flutes of the output face each comprise a curved facet and a plane facet. 19. The device of claim 14, wherein the flutes of the output face are contiguous or non-contiguous. 20. The device of claim 14, wherein each flute of the output face forms a flute angle with an axis of the optical guide, of the order of 1�� to 30��. 21. A device for a motor vehicle comprising: at least one light source in a motor vehicle signal light or headlight configured to emit a light beam and at least one optical guide in which the light beam propagates, said optical guide comprising: a substantially cylindrical cross-section and a curvilinear shape along its length; an output face for the light beam, and a reflection face, opposite to the output face, having a serrated profile forming a reflection face for the light beam; wherein the reflection face comprises a series of prisms, each prism forming, with the following prism, a bottom angle, said at least one bottom angle of the reflection face being truncated, and further wherein the output face has a profile comprising flutes of uniform shape and size.
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이 특허에 인용된 특허 (11)
Jenkins David ; Pagano Robert ; Cote Marie ; Griffin Joseph A., Bireflective lens element.
Eckhardt, Stephen K.; Carpenter, Barry S.; Ender, David A.; Lundin, David J.; Napierala, Mark E.; Sahlin, Jennifer J.; Slama, David F.; Vick, Karl A.; Wheatley, John A., Light assembly.
Eckhardt, Stephen K.; Carpenter, Barry S.; Ender, David A.; Lundin, David J.; Napierala, Mark E.; Sahlin, Jennifer J.; Slama, David F.; Vick, Karl A.; Wheatley, John A., Light assembly.
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