LIGHT GUIDE MEMBER, LASER LIGHT GUIDE STRUCTURE BODY, LASER SHINING APPARATUS, AND LIGHT SOURCE APPARATUS

• US 20110279999A1
• Filed: 04/27/2011
• Published: 11/17/2011
• Est. Priority Date: 05/12/2010
• Status: Abandoned Application

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: TAKAHASHI, Koji
• Application Number:
  US13/095,320
• Publication Number:
  US 20110279999A1
• Time in Patent Office: Days
• US Class Current: 362/84
• CPC Class Codes: F21S 41/16 Laser light sources
• CPC Class Codes: F21S 41/176 Light sources where the light is generated by photoluminescent material spaced from a primary light generating element
• CPC Class Codes: G02B 6/2808 using a mixing element which evenly distributes an input signal over a number of outputs
• CPC Class Codes: G02B 6/34 utilising prism or grating G02B6/293 takes precedence
• CPC Class Codes: G02B 6/4296 coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
• CPC Class Codes: H01L 2224/48091 Arched
• CPC Class Codes: H01L 2224/48463 the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01S 3/094057 by tapered duct or homogenized light pipe, e.g. for concentrating pump light
• CPC Class Codes: H01S 5/0087 for illuminating phosphorescent or fluorescent materials, e.g. using optical arrangements specifically adapted for guiding or shaping laser beams illuminating these materials
• CPC Class Codes: H01S 5/02216 Butterfly-type, i.e. with electrode pins extending horizontally from the housings
• CPC Class Codes: H01S 5/0225 Out-coupling of light
• CPC Class Codes: H01S 5/02476 Heat spreaders, i.e. improving heat flow between laser chip and heat dissipating elements
• CPC Class Codes: H01S 5/32341 blue laser based on GaN or GaP
• CPC Class Codes: H01S 5/4012 Beam combining, e.g. by the use of fibres, gratings, polarisers, prisms
• CPC Class Codes: H01S 5/4025 Array arrangements, e.g. constituted by discrete laser diodes or laser bar H01S5/42 takes precedence

Abstract

A light guide member 3 includes: an incident surface 3a that is a flat surface or a constant curved surface; an output surface 3b that is smaller than the incident surface 3a; and reflection surfaces 3c to 3f that are formed on a side surface between the incident surface 3a and the output surface 3b; wherein an inside of the light guide member 3 is homogeneous.

Claims

1. A light guide member, comprising:

an incident surface that is a flat surface or a constant curved surface;

an output surface that is smaller than the incident surface; and

a reflection surface that is formed on a side surface between the incident surface and the output surface;

wherein an inside of the light guide member is homogeneous.

2. A laser light guide structure body, comprising:

the light guide member according to claim 1; and

a semiconductor laser device that faces the incident surface and emits laser light which travels while diffusing.

3. A laser light guide structure body, comprising:

the light guide member according to claim 1; and

a plurality of semiconductor laser devices that face the incident surface and emit laser light which has an ellipse in section;

wherein

the semiconductor laser devices are arranged in a direction parallel to a minor-axis direction of the ellipse.

4. A laser light guide structure body, comprising:

the light guide member according to claim 1; and

a plurality of semiconductor laser devices that face the incident surface;

wherein

optical axes of the respective semiconductor laser devices face substantially a center of the output surface.

5. A laser light guide structure body, comprising:

the light guide member according to claim 1; and

a semiconductor laser device that faces the incident surface and emits laser light which has an ellipse in section;

wherein

the reflection surface has a first surface and a second surface; and

an acute angle, which is formed between an edge of the first surface connecting the incident surface and the output surface to each other and a minor-axis direction of the ellipse, is smaller than an acute angle which is formed between an edge of the second surface connecting the incident surface and the output surface to each other and a major-axis direction of the ellipse.

6. A laser light shining apparatus, comprising:

the light guide member according to claim 1;

a semiconductor laser device that faces the incident surface; and

a housing that houses the light guide member and the semiconductor laser device.

7. The laser light shining apparatus according to claim 6, further comprising a lens or a fluorescent body.

8. A light source apparatus, comprising:

the light guide member according to claim 1;

a semiconductor laser device; and

a fluorescent body that is excited by laser light to emit visible light;

wherein the light guide member is disposed between the semiconductor laser device and the fluorescent body.

9. The light source apparatus according to claim 8, further comprising a reflector that reflects the visible light.