VEHICULAR LAMP

• US 20100290241A1
• Filed: 05/13/2010
• Published: 11/18/2010
• Est. Priority Date: 05/14/2009
• Status: Abandoned Application

• Current Assignee: Koito Manufacturing Company Limited
• Original Assignee: Koito Manufacturing Company Limited
• Inventors: Tsukamoto, Hironori
• Application Number:
  US12/779,586
• Publication Number:
  US 20100290241A1
• Time in Patent Office: Days
• US Class Current: 362/519
• CPC Class Codes: B60Q 1/0047 Signalling unit mounted on a headlamp unit
• CPC Class Codes: B60Q 1/2696 Mounting of devices using LEDs
• CPC Class Codes: B60Q 1/28 for indicating front of vehicle
• CPC Class Codes: B60Q 2400/30 Daytime running lights [DRL], e.g. circuits or arrangements therefor
• CPC Class Codes: B60Q 2900/40 Several lamps activated in sequence, e.g. sweep effect, progressive activation
• CPC Class Codes: F21S 41/143 the main emission direction of the LED being parallel to the optical axis of the illuminating device
• CPC Class Codes: F21S 41/148 the main emission direction of the LED being perpendicular to the optical axis
• CPC Class Codes: F21S 41/151 arranged in one or more lines
• CPC Class Codes: F21S 41/19 Attachment of light sources or lamp holders achieving variable light distribution by movable light sources F21S41/657
• CPC Class Codes: F21S 43/50 characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
• CPC Class Codes: F21V 17/12 by screwing
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A vehicular lamp including a light source unit including a light-emitting element inside a lamp housing; a planar wiring member on which the light-emitting element is mounted; and a support substrate having a flat portion that supports the planar wiring member. The support substrate is formed from a plate having high thermal conductivity, the planar wiring member is fixed to the flat portion of the support substrate, and a portion of the support substrate is fixedly supported inside the lamp housing.

Claims

1. A vehicular lamp comprising:

a light source unit comprising;

a light-emitting element inside a lamp housing;

a planar wiring member on which the light-emitting element is mounted; and

a support substrate having a flat portion that supports the planar wiring member,

wherein the support substrate is formed from a plate having high thermal conductivity,

wherein the planar wiring member is fixed to the flat portion of the support substrate, and

wherein a portion of the support substrate is fixedly supported inside the lamp housing.

2. The vehicular lamp according to claim 1,

wherein the support substrate is formed from a plurality of independent support substrates,

wherein the planar wiring member is flexible and fixed to each of the plurality of independent support substrates, and

wherein the plurality of independent support substrates are fixedly supported inside the lamp housing in respective orientations.

3. The vehicular lamp according to claim 1,

wherein the planar wiring member is adhered to the support substrate.

4. The vehicular lamp according to claim 2,

wherein a plurality of light-emitting elements are mounted on a portion of the planar wiring member supported by at least one of the plurality of independent support substrates.

5. The vehicular lamp according to claim 1 further comprising:

a reflector that collects light radiated from the light-emitting element,

wherein the reflector is fixed to the support substrate.

6. The vehicular lamp according to claim 1, wherein the flat portion of the support substrate is oriented horizontally.

7. The vehicular lamp according to claim 6 further comprising:

a reflector that collects light radiated from the light-emitting element,

wherein the reflector is fixed to the flat portion of the support substrate, and

wherein the reflector has a half-dome shape formed from a rotational paraboloid.

8. The vehicular lamp according to claim 7, wherein the reflector is a resin-molded component having an aluminized surface.

9. The vehicular lamp according to claim 7, wherein the support substrate comprises a vertically-oriented support tab, and wherein the support substrate is fixed the lamp body through the vertically-oriented support tab.

10. The vehicular lamp according to claim 1, wherein the flat portion of the support substrate is oriented vertically.

11. The vehicular lamp according to claim 10 further comprising:

a reflector that collects light radiated from the light-emitting element,

wherein the reflector is fixed to the flat portion of the support substrate, and

wherein the reflector is formed with a rotational parabolic shape.

12. The vehicular lamp according to claim 11, wherein the reflector is a resin-molded component having an aluminized surface.

13. The vehicular lamp according to claim 10, wherein the support substrate comprises a horizontally-oriented rear edge portion, and wherein the support substrate is fixed to the lamp body through the horizontally-oriented rear edge portion.

14. A vehicular lamp comprising a light source unit comprising:

a plurality of light-emitting elements inside a lamp housing;

a flexible planar wiring member on which the light-emitting element is mounted; and

a plurality of independent support substrates each having a flat portion that supports the flexible planar wiring member,

a plurality of reflectors that collect light radiated from the plurality of light-emitting elements,

wherein the support substrate is formed from a plate having high thermal conductivity,

wherein the planar wiring member is adhered to the flat portion of each of the plurality of independent support substrates,

wherein a portion of each of the plurality of independent support substrates is fixedly supported inside the lamp housing in respective orientations,

wherein a plurality of light-emitting elements are mounted on a portion of the flexible planar wiring member supported by at least one of the plurality of independent support substrates,

wherein the plurality of reflectors are respectively fixed to the plurality of independent support substrates, and

wherein the plurality of reflectors are resin-molded components having an aluminized surface.

15. The vehicular lamp according to claim 14, wherein the flat portion of the support substrate is oriented horizontally.

16. The vehicular lamp according to claim 15, wherein the plurality of reflectors comprise a series of integrated reflectors each having a half-dome shape formed from a rotational paraboloid.

17. The vehicular lamp according to claim 16, wherein the plurality of support substrates each comprise a vertically-oriented support tab, and wherein each of the plurality of support substrates are respectively fixed the lamp body through the vertically-oriented support tab.

18. The vehicular lamp according to claim 14, wherein the flat portion of the support substrate is oriented vertically.

19. The vehicular lamp according to claim 18, wherein the plurality of reflectors are formed with a rotational parabolic shape.

20. The vehicular lamp according to claim 19, wherein the plurality of support substrates each comprise a horizontally-oriented rear edge portion, and wherein each of the plurality of support substrates are respectively fixed to the lamp body through the horizontally-oriented rear edge portion.