Bulb for semiconductor luminous device, and semiconductor luminous device

• US 9,739,426 B2
• Filed: 03/13/2012
• Issued: 08/22/2017
• Est. Priority Date: 04/12/2011
• Status: Active Grant

• Current Assignee: LEDVANCE GmbH (MLS Co. Ltd.)
• Original Assignee: LEDVANCE GmbH (MLS Co. Ltd.)
• Inventors: Hoechtl, Johannes
• Primary Examiner(s): Mai, Anh
• Assistant Examiner(s): Fallahkhair, Arman B
• Application Number:
  US14/110,928
• Publication Number:
  US 20140029266A1
• Time in Patent Office: 1,988 Days
• Field of Search: 362186, 362291, 36229605, 362235, 36231102, 36229402, 362329, 362310, 362308, 362335, 36231101, 36231114
• CPC Class Codes: F21K 9/20 Light sources comprising attachment means
• CPC Class Codes: F21K 9/235 Details of bases or caps, i.e. the parts that connect the light source to a fitting; Arrangement of components within bases or caps F21K9/238 takes precedence
• CPC Class Codes: F21K 9/61 using light guides
• CPC Class Codes: F21V 13/04 the elements being reflectors and refractors for vehicle rear lights F21S43/40
• CPC Class Codes: F21V 3/00 Globes; Bowls; Cover glasses with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A bulb for a semiconductor luminous device is provided. The bulb is three-dimensionally extended and includes at least one optically effective surface structure. A semiconductor luminous device may include at least one semiconductor light source and an optically transmissive bulb for transmitting light emitted by the at least one semiconductor light source, the bulb being three-dimensionally extended and comprising at least one optically effective surface structure, wherein the bulb encloses at least one semiconductor light source.

Claims

1. A semiconductor luminous device, comprising

at least one semiconductor light source and

an optically transmissive bulb for transmitting light emitted by the at least one semiconductor light source,

wherein the bulb is three-dimensionally extended and comprises

a plurality of optically effective surface structures,

wherein each of the optically effective surface structures comprises an optical element and a corresponding through-bore through the bulb,

wherein each optical element is configured to be insertable into the corresponding through-bore from an outer side of the bulb and to extend laterally beyond the bulb.

2. The semiconductor luminous device as claimed in claim 1, wherein each optical element comprises a hollow cylindrical base.

3. The semiconductor luminous device as claimed in claim 2, wherein each optical element further comprises at least two annular elevations.

4. The semiconductor luminous device as claimed in claim 1, wherein the bulb comprises a backward bearing edge.

5. The semiconductor luminous device as claimed in claim 4, further comprising a heat sink, wherein the bulb is fitted onto the heat sink by means of the bearing edge.

6. The semiconductor luminous device as claimed in claim 1, wherein the bulb comprises at least one recess, for receiving at least one light source, on a bearing surface.

7. The semiconductor luminous device as claimed in claim 1, wherein the optically effective surface structures are arranged in the bulb on a region of a largest lateral extent.

8. The semiconductor luminous device as claimed in claim 1, wherein at least one of the semiconductor light sources is configured to emit light in a lateral direction.

9. The semiconductor luminous device as claimed in claim 1, wherein at least one of the semiconductor light sources is configured to have its main emission direction directed towards one of the optical elements.

10. A semiconductor luminous device, comprising

at least one semiconductor light source and

an optically transmissive bulb for transmitting light emitted by the at least one a semiconductor light source,

wherein the bulb is three-dimensionally extended and comprises

a plurality of optically effective surface structures,

wherein the plurality of optically effective surface structures comprises a plurality of through-bores through the bulb and a plurality of optical elements,

wherein each optical element comprises a hollow cylindrical base and two annular elevations on the outer lateral surface of the cylindrical base

wherein each optical element is inserted into a through-bore of the plurality of through-bores from an outer side of the bulb and extends laterally beyond the bulb,

wherein the plurality of optical elements is configured to direct light emitted by the at least one semiconductor light source into a rearward direction.