Light for vehicles

• US 8,408,773 B2
• Filed: 04/06/2010
• Issued: 04/02/2013
• Est. Priority Date: 03/19/2007
• Status: Active Grant

• Current Assignee: Innotec, Corp.
• Original Assignee: Innotec, Corp.
• Inventors: Judge, Michael K.
• Primary Examiner(s): BRUCE, DAVID VERNON
• Application Number:
  US12/754,866
• Publication Number:
  US 20100186214A1
• Time in Patent Office: 1,092 Days
• Field of Search: 362/605, 362/606, 362/612, 362/618, 362/481, 362/488, 362/495, 362/97.1
• US Class Current: 362/605
• CPC Class Codes: B60Q 1/2696 Mounting of devices using LEDs
• CPC Class Codes: B60Q 1/503 using luminous text or symbol displays in or on the vehicle, e.g. static text
• CPC Class Codes: B60Q 3/217 Doors, e.g. door sills; Steps
• CPC Class Codes: B60R 2013/016 integrating other functions or accessories
• CPC Class Codes: F21V 31/04 Provision of filling media
• CPC Class Codes: H05K 3/284 for encapsulating mounted components H05K1/185 takes precedence
• CPC Class Codes: Y10T 29/49861 Sizing mating parts during final positional association

Abstract

An illuminated component for motor vehicles and the like includes a light source that may comprise one or more LEDs. A sheet of light-transmitting material has a first side surface that is coated with ink or other opaque material. Some of the opaque material is removed to form areas that may be illuminated by the light source. The opaque material may be removed utilizing a laser-engraving/etching process according to a specific pattern or design provided by a customer from a remote location.

Claims

1. A method of fabricating an illuminated vehicle component, the method comprising:

providing a sheet of light-transmitting polymer material having opposite side surfaces;

coating at least a portion of a first opposite side surface of the sheet of light-transmitting material with a substantially opaque material;

cutting the sheet of light-transmitting material to form a member having a peripheral edge having a predefined contour; and

removing at least a portion of the opaque material utilizing a laser such that the first opposite side surface includes a first region that is coated with the opaque material and a second region wherein the opaque material has been removed.

2. The method of claim 1, wherein:

the sheet of light-transmitting material is cut to form the peripheral edge after removal of at least a portion of the opaque material.

3. The method of claim 1, wherein:

the sheet of light-transmitting material is cut to form a peripheral edge after at least a first opposite side surface of the sheet of light-transmitting material is coated with a substantially opaque material.

4. The method of claim 1, including:

providing a light source having a generally planar light-emitting surface; and

positioning the planar light-emitting surface adjacent the member such that light from the light source is transmitted through the second region of the member.

5. The method of claim 4, wherein:

the second region has a shape forming a letter.

6. The method of claim 4, including:

providing a layer of light-diffusing material; and

positioning the layer of light-diffusing material between the light source and the member.

7. The method of claim 4, including:

mounting the light source and the member to a motor vehicle along a lower edge of a door opening whereby the light source and the member define at least a portion of a scuff plate.

8. The method of claim 1, including:

providing a laser-engraving machine;

receiving a digital file defining a design having a shape from a customer at a remote location;

positioning the sheet of light-transmitting material in the laser-engraving machine; and

causing the laser-engraving machine to remove the opaque material such that the second region has a shape that is substantially the same as the shape of the design.

9. The method of claim 1, including:

providing a decal having a design printed on a first side thereof; and

positioning the decal adjacent the first opposite side of the sheet of light-transmitting polymer material such that at least a portion of the design is visible through the second region.

10. The method of claim 9, wherein:

the decal is adhesively secured to the first opposite side of the sheet of light-transmitting polymer material.

11. A light assembly, comprising:

an electrically conductive circuit;

at least one LED mounted to the circuit;

a light-transmitting thermoplastic polymer body encapsulating the LED and at least a portion of the circuit and defining inner and outer side faces, wherein the polymer body includes smooth surface portions configured to internally reflect light from the LED, and irregular surface portions that disperse light from the LED such that the light from the LED escapes from the polymer body;

a layer of substantially opaque material disposed on the outer side face of the polymer body and covering selected portions of the outer side face and substantially blocking escape of light from the polymer body at the selected portions, the layer of substantially opaque material defining open areas on the outer side face of the polymer body, wherein the open areas are illuminated by light from the LED and form a lighted pattern.

12. The light assembly of claim 11, wherein:

the open areas are formed by openings through the layer of substantially opaque material.

13. The light assembly of claim 12, including:

at least one opaque member disposed in a selected one of the openings through the layer of substantially opaque material and defining a gap between the opaque member and the edge of the one opening through which light can escape.

14. The light assembly of claim 12, including:

a light-transmitting member extending over at least one of the openings and closing off the opening.

15. The light assembly of claim 14, wherein:

the light-transmitting member includes a polymer body portion and a layer of light-transmitting material disposed on the body portion, wherein the layer of light-transmitting material has an appearance that is substantially similar to chrome when the LEDs are turned off.

16. The light assembly of claim 11, including:

a timer that turns off the LEDs after a preselected period of time.