OPTOELECTRONIC MODULES HAVING FEATURES FOR REDUCING THE VISUAL IMPACT OF INTERIOR COMPONENTS

• US 20170047487A1
• Filed: 04/14/2015
• Published: 02/16/2017
• Est. Priority Date: 04/17/2014
• Status: Abandoned Application

• Current Assignee: Ams Sensors Singapore Pte. Ltd. (Ams-Osram AG)
• Original Assignee: Heptagon Micro Optics Pte Ltd
• Inventors: Hobbis, Jonathan, Kromhof, Ren, Ripoll, Olivier, Rossi, Markus, Geiger, Jens
• Application Number:
  US15/304,269
• Publication Number:
  US 20170047487A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F21V 13/08 the elements being filters or photoluminescent elements and reflectors
• CPC Class Codes: F21V 23/06 the elements being coupling devices , e.g. connectors
• CPC Class Codes: F21V 3/04 characterised by materials, surface treatments or coatings
• CPC Class Codes: F21V 3/08 the material comprising photoluminescent substances
• CPC Class Codes: F21V 7/28 characterised by coatings
• CPC Class Codes: F21V 9/08 for producing coloured light, e.g. monochromatic; for reducing intensity of light with provision for controlling the colour F21V9/40
• CPC Class Codes: F21V 9/32 characterised by the arrangement of the photoluminescent material
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: G02B 5/23 Photochromic filters
• CPC Class Codes: G03B 15/05 Combinations of cameras with electronic flash apparatus; Electronic flash units
• CPC Class Codes: G03B 15/06 Special arrangements of screening, diffusing, or reflecting devices, e.g. in studio
• CPC Class Codes: G03B 2215/0567 Solid-state light source, e.g. LED, laser
• CPC Class Codes: G03B 2215/0582 Reflectors
• CPC Class Codes: H01L 33/486 adapted for surface mounting
• CPC Class Codes: H01L 33/50 Wavelength conversion elements
• CPC Class Codes: H01L 33/502 Wavelength conversion materials
• CPC Class Codes: H01L 33/507 the elements being in intimate contact with parts other than the semiconductor body or integrated with parts other than the semiconductor body
• CPC Class Codes: H01L 33/58 Optical field-shaping elements
• CPC Class Codes: H01L 33/60 Reflective elements

Abstract

Light emitting modules, such as flash modules, include features to help reduce the visual impact of interior components and shield them from view. The features also may enhance the outer appearance of the module or of an appliance incorporating the module.

Claims

1-26. -26. (canceled)

27. A light emitting module comprising:

a light emitting element mounted on a substrate;

a wavelength conversion material disposed in an area of the module spaced apart from the light emitting element; and

a cover substantially parallel to the substrate and having a first section disposed over the wavelength conversion material and composed of a material that is substantially transparent to light to be emitted from the module,

a substantially opaque layer extending over the light emitting element so as to reduce a visual impact of the light emitting element from outside the module while the light emitting element is not emitting light,

wherein a height of the wavelength conversion material in a direction from the substrate toward the cover is sufficiently small so as to reduce a visual impact of the phosphor when viewed from outside the module while the light emitting element is not emitting light; and

wherein the module is arranged so that at least some light emitted by the light emitting element that enters the wavelength conversion material is converted to light of a different wavelength which subsequently exits the module through the first section of the cover.

28. The light emitting module of claim 27 wherein a ratio of a width to height consumed by the wavelength conversion material is in a range of 5/1 to 100/1.

29. The light emitting module of claim 28 wherein a ratio of a width to height consumed by the wavelength conversion material is in a range of about 10/1 to 50/1.

30. The light emitting module of claim 27 wherein the wavelength conversion material converts the light emitted by the light emitting element to white light.

31. The light emitting module of claim 27 further including a reflector to reflect light emitted by the light emitting element toward the wavelength conversion material.

32. The light emitting module of claim 31 wherein the reflector intersects an optical emission axis of the light emitting element.

33. The light emitting module of claim 31 wherein the reflector comprises a low-emissivity, highly reflective coating.

34. The light emitting module of claim 27 further including a first reflective surface on the same side of the wavelength conversion material as the light emitting element and a second reflective surface on an opposite side of the wavelength conversion material.

35. The light emitting module of claim 27 wherein the substantially opaque layer is composed of the same material as the spacer.

36. The light emitting module of claim 27 wherein the substantially opaque layer comprises a coating on a surface of the cover.

37-41. -41. (canceled)