Motor vehicle lighting system including a sealed lens member as part thereof

• US 4,646,207 A
• Filed: 04/10/1984
• Issued: 02/24/1987
• Est. Priority Date: 04/10/1984
• Status: Expired due to Term

• Current Assignee: Valeo-Sylvania LLC
• Original Assignee: GTE Products Corporation
• Inventors: Levin, Robert E., English, George J.
• Primary Examiner(s): Feinberg, Craig R.
• Application Number:
  US06/598,614
• Time in Patent Office: 1,050 Days
• Field of Search: 362/61, 362/80, 362/82, 362/235-238, 362/240, 362/242, 362/246, 362/257, 362/268, 362/290, 362/291, 362/292, 362/296, 362/307, 362/310, 362/317, 362/311, 362/330 , 362/331, 362/335, 362/336, 362/339, 362/340, 362/351, 362/355, 362/354, 362/361
• US Class Current: 362/522
• CPC Class Codes: B60Q 1/0005 Devices preventing the lights from becoming dirty or damaged, e.g. protection grids or cleaning by air flow windshield wipers for cleaning optical devices of vehicles B60S1/04
• CPC Class Codes: F21S 41/00 Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps reversing lights F21S43/00
• CPC Class Codes: F21S 41/14 characterised by the type of light source
• CPC Class Codes: F21S 41/162 Incandescent light sources, e.g. filament or halogen lamps
• CPC Class Codes: F21S 41/26 Elongated lenses
• CPC Class Codes: F21S 41/265 Composite lenses; Lenses with a patch-like shape
• CPC Class Codes: F21S 41/275 Lens surfaces, e.g. coatings or surface structures
• CPC Class Codes: F21S 41/28 Cover glass
• CPC Class Codes: F21S 41/285 Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24-F21S41/28
• CPC Class Codes: F21S 41/321 the reflector being a surface of revolution or a planar surface, e.g. truncated
• CPC Class Codes: F21S 41/323 the reflector having two perpendicular cross sections having regular geometrical curves of a distinct nature
• CPC Class Codes: F21S 41/37 characterised by their material, surface treatment or coatings
• CPC Class Codes: F21S 45/10 Protection of lighting devices cooling of lighting devices F21S45/40; waterproofing of lighting devices F21S45/50

Abstract

A lighting system for a motor vehicle adapted to be mounted in a recess within a front, contoured surface of the motor vehicle and including a light source and reflector means, and a lens assembly. The lens assembly comprises a hollow, enclosed, single piece lens member having a front, clear surface positioned to coincide with the vehicle'"'"'s front, contoured surface so as to enhance aerodynamic performance of the lighting (and vehicle) system, a rear lensing portion positioned substantially vertically, and side and bottom walls for enclosing the lens member to provide a sealed, dirt-free component.

Claims

1. A lighting system for providing forward illumination for a motor vehicle and adapted to be mounted in a recess or the like within a front, contoured surface of said motor vehicle, said system comprising:

at least one hermetically sealed lighting module including a reflector, a lamp capsule mounted within said reflector, and an optically clear cover sealed to said reflector;

a lens assembly comprising a hollow, enclosed single piece lens member having a front, clear surface positioned to coincide with said front contoured surface of said vehicle so as to enhance the aerodynamic performance of said lighting system, a rear lensing portion positioned in a substantially vertical orientation non-parallel to and spaced from said front surface, and side walls for enclosing said member fo provide a sealed, dirt-free member, substantially all of a light modifying lensing function of said lens assembly being provided solely by said rear lensing portion; and

means for mounting said lens member so as to be spaced in front of said lighting module is said recess forward of said lighting module such that the light emitted by said module will pass through said lens member.

2. The lighting system as defined in claim 1 wherein said rear lensing portion includes a plurality of lensing elements located on an internal surface of said rear lensing portion.

3. The lighting system as defined in claim 1 wherein said rear lensing portion of said lens member includes a plurality of lensing elements located within an internal surface of said rear lensing portion.

4. The lighting system as defined in claim 1 wherein said lighting module reflector includes a substantially parabolic reflecting surface, said reflector secured to said rear lensing portion of said lens member on the outside thereof.

5. The lighting system as defined in claim 4 wherein said lamp is replaceable within said reflector.

6. The lighting system as defined in claim 1 wherein said lens member has a bottom wall also enclosing said member.

7. The lighting system as defined in claim 6 wherein said bottom wall includes an internal surface having thereon means for preventing reflection of said light emitted by said light source.

8. The lighting system as defined in claim 7 wherein said means for preventing reflection comprises a plurality of grooves formed within said surface.

9. The lighting system as defined in claim 7 wherein said means for preventing reflecting comprises an opaque coating on said internal surface.

10. The lighting system defined in claim 1 including a plurality of said hermetically sealed lighting modules, said modules being disposed in a linear and horizontal manner.

11. The lighting system as defined in claim 10 wherein the number of said modules is four.

12. The lighting system as defined in claim 11 wherein said rear lensing portion of said lens member comprises a rear lensing surface including a plurality of separate lens surfaces, each of said surfaces aligning with a respective one of said lighting modules.

13. The lighting system as defined in claim 12 wherein all of said lens surfaces are disposed in different planes, said planes being substantially parallel to each other.