Light manifold for automotive light module

• US 7,160,010 B1
• Filed: 11/15/2005
• Issued: 01/09/2007
• Est. Priority Date: 11/15/2005
• Status: Expired due to Fees

• Current Assignee: Varroc Lighting Systems S.R.O. (Varroc Engineering Limited)
• Original Assignee: Visteon Global Technologies Incorporated (Visteon Corporation)
• Inventors: Erion, Jeffrey Allen, Sayers, Edwin Mitchell, Chinniah, Jeyachandrabose, Fallahi, Amir P., Jones, Thomas Lee
• Primary Examiner(s): Tso; Laura K.
• Application Number:
  US11/274,609
• Time in Patent Office: 420 Days
• Field of Search: 362/600, 362/615, 362/612, 362/616, 362/623, 362/625, 362/555, 362/511
• US Class Current: 362/511
• CPC Class Codes: F21S 43/14 Light emitting diodes [LED]
• CPC Class Codes: F21S 43/239 plate-shaped
• CPC Class Codes: F21S 43/243 emitting light from one or more of its extremities
• CPC Class Codes: F21V 5/04 of lens shape
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A light manifold for an automotive light module emitting light to the side of a longitudinal axis along which light is to be directed. The light module is structured in a manner that permits the creation of light distribution patterns for particular functions, such as the stop light function for an automobile, that are otherwise difficult to effectively produce.

Claims

1. A light manifold for an automotive light module having a light source, the light manifold comprising:

a main body of light transmitting material, the main body defining a longitudinal axis and a lateral axis;

the main body having opposing first and second surfaces, the first and second surfaces generally facing longitudinally;

the first surface having a series of alternating angled portions and lateral portions, the angled portions angled relative to both the longitudinal and lateral axes for reflecting light towards the second surface; and

the lateral portions including a plurality of ridges structured to reflect incident light towards the second surface.

2. The light manifold of claim 1, wherein the lateral portions are generally parallel to the lateral axis.

3. The light manifold of claim 1, wherein the angled portions are angled about 45 degrees relative to both the longitudinal and lateral axes.

4. The light manifold of claim 1, wherein each angled portion has an upper longitudinal edge, and the plurality of ridges have upper longitudinal edges positioned lower than the upper longitudinal edge of an adjacent radially inward angled portion.

5. The light manifold of claim 1, wherein the plurality of ridges are defined by V-shaped grooves formed into the first surface of the main body.

6. The light manifold of claim 1, wherein the angled portions are positioned sequentially in the longitudinal direction.

7. The light manifold of claim 1, wherein the main body is annular in shape.

8. The light manifold of claim 7, wherein the annular main body includes an interior passageway defined by a flat laterally facing surface receiving light from the light source.

9. The light manifold of claim 8, further comprising a near field lens having a flat outer laterally facing surface abutting against the laterally facing surface of the main body.

10. A light manifold for an automotive light module having a light source, the light manifold comprising:

a main body of light transmitting material, the main body having a disc shape defining a longitudinal axis, the main body having opposing first and second surfaces generally facing longitudinally;

the main body circumferentially divided into a plurality of wedge sections, each wedge section having a series of radially spaced apart angled portions formed into the first surface, the angled portions being angled relative to the longitudinal axis for reflecting light towards the second surface; and

the radial spacing of the angled portions of a first wedge section being different than the radial spacing of the angled portions of a second wedge section.

11. The light manifold of claim 10, wherein each wedge section has a radial length, and wherein the radial length of the first wedge section is different than the radial length of the second wedge section.

12. The light manifold of claim 11, wherein the plurality of wedge sections alternate between the first and second wedge sections.

13. The light manifold of claim 10, wherein each wedge section further includes a series of radially spaced apart inclined sections, the inclined sections being angled relative to the longitudinal axis at a degree greater than the degree that the angled sections are angled relative to the longitudinal axis.

14. The light manifold of claim 10, wherein the angled sections are angled at about 45 degrees.

15. The light manifold of claim 13, wherein the inclined sections are angled at greater than about 45 degrees.

16. The light manifold of claim 13, wherein the inclined sections are angled at about 68 degrees.

17. The light manifold of claim 10, wherein the radially outermost angled portion is shared by all wedge sections.

18. The light manifold of claim 10, further comprising a plurality of ridges formed into the first surface between the angled portions, the ridges structured to reflect incident light towards the second surface.

19. The light manifold of claim 10, wherein the plurality of angled portions are spaced apart radially and positioned sequentially in the longitudinal direction.

20. The light manifold of claim 10, wherein the first and second wedge section are adjacent each other.