Illuminating system and thin plate shield illuminating apparatus

• US 20110305029A1
• Filed: 06/14/2011
• Published: 12/15/2011
• Est. Priority Date: 06/15/2010
• Status: Abandoned Application

• Current Assignee: United Radiant Technology Corporation
• Original Assignee: United Radiant Technology Corporation
• Inventors: Chuang, Yu-Jen, Ju, Chang-Yuan
• Application Number:
  US13/134,690
• Publication Number:
  US 20110305029A1
• Time in Patent Office: Days
• US Class Current: 362/464
• CPC Class Codes: F21S 41/155 Surface emitters, e.g. organic light emitting diodes [OLED]
• CPC Class Codes: F21S 41/645 by electro-optic means, e.g. liquid crystal or electrochromic devices

Abstract

An illuminating system having an electronic shield illuminating apparatus comprises a semiconductor light-emitting source, a reflector, an electronic shield, a shield driving control circuit, and a projection lens. The reflector is intended for reflecting a portion of the light reflected by the semiconductor light-emitting source, and has a reflecting surface facing the semiconductor light-emitting source. The electronic shield is intended for generating different shield patterns to mask the light emitted by the semiconductor light-emitting source, and the light reflected by the reflector, and has a main surface facing the semiconductor light-emitting source and the reflecting surface of the reflector. The shield driving control circuit drives the electronic shield to generate different shield patterns in response to a signal information. The projection lens projects the light passing through the electronic shield.

Claims

1. An illuminating system having an electronic shield illuminating apparatus, the electronic shield illuminating apparatus comprising:

a first semiconductor light-emitting source disposed to project light downwardly;

a first reflector for reflecting a portion of the light emitted from the first semiconductor light-emitting source, the first reflector including a first reflecting surface facing the first semiconductor light-emitting source;

an electronic shield for generating different shield patterns for masking the light emitted by the first semiconductor light-emitting source, and the light reflected by the first reflector, the electronic shield having a main surface facing the first semiconductor light-emitting source and the first reflecting surface of the first reflector;

a shield driving control circuit for driving the electronic shield to generate different shield patterns in response to a signal information; and

a first projection lens for projecting the light passing through the electronic shield.

2. The illuminating system according to claim 1, wherein the signal information is a steering information of a vehicle comprising a turning information.

3. The illuminating system according to claim 2, wherein when the turning information indicates that the vehicle turns towards a direction, the driving control circuit controls the electronic shield to generate a predetermined shield pattern, so that the light passing through the electronic shield is deflected towards said direction.

4. The illuminating system according to claim 1, further comprising a thin plate shield illuminating apparatus, the thin plate shield illuminating apparatus comprising:

a second semiconductor light-emitting source;

a second reflector for reflecting a portion of light emitted by the second semiconductor light-emitting source, the second reflector including a second reflecting surface facing the second semiconductor light-emitting source;

a thin plate shield having a third reflecting surface impermeable to light for reflecting the light emitted by the second semiconductor light-emitting source and the light reflected by the second reflector; and

a second projection lens for projecting the light reflected by the thin plate shield and a portion of light emitted by the second semiconductor light-emitting source.

5. The illuminating system according to claim 4, wherein the semiconductor light-emitting source of the thin plate shield illuminating apparatus is disposed to project the light downwardly, and projects the light towards the second reflecting surface of the second reflector.

6. The illuminating system according to claim 4, wherein the third reflecting surface of the thin plate shield faces downwards.

7. The illuminating system according to claim 1, wherein the electronic shield is selected from either a liquid display device (LCD) or an electrochromic device.

8. The illuminating system according to claim 4, wherein the semiconductor light-emitting sources are selected from either a light-emitting diode (LED) or an organic light-emitting diode (OLED).

9. The illuminating system according to claim 4, further comprising a heat dissipating device located in proximity to the semiconductor light-emitting sources.

10. The illuminating system according to claim 1, wherein:

the projection lens comprises an optical axis and a theoretical focal point;

the first reflector comprises a first theoretical focal point and a second theoretical focal point, the first theoretical focal point coinciding with the theoretical focal point of the projection lens, and a straight line formed by the first theoretical focal point and the second theoretical focal point being inclined with respect to the optical axis of the projection lens by an angle;

the first semiconductor light-emitting source is substantially disposed at the second theoretical focal point;

the electronic shield is substantially disposed at the theoretical focal point of the projection lens.

11. The illuminating system according to claim 10, wherein in the angle ranges from 0 to 90 degrees.

12. A thin plate shield illuminating apparatus, comprising:

a semiconductor light-emitting source disposed to project light downwardly;

a reflector for reflecting a portion of the light emitted from the semiconductor light-emitting source, the reflector including a reflecting surface facing the semiconductor light-emitting source;

a thin plate shield having a reflecting surface impermeable to light for reflecting the light emitted by the semiconductor light-emitting source and the light reflected by the reflector; and

a projection lens for projecting the light reflected by the thin plate shield and a portion of light emitted by the semiconductor light-emitting source.

13. The thin plate shield illuminating apparatus according to claim 12, wherein the reflecting surface of the thin plate shield faces downwards.

14. The thin plate shield illuminating apparatus according to claim 12, wherein:

the projection lens comprises an optical axis and a theoretical focal point;

the reflector comprises a first theoretical focal point and a second theoretical focal point, the first theoretical focal point substantially coinciding with the theoretical focal point of the projection lens, and a straight line formed by the first theoretical focal point and the second theoretical focal point being inclined with respect to the optical axis of the projection lens by an angle;

the semiconductor light-emitting source is substantially disposed at the second theoretical focal point of the reflector;

the thin plate shield is disposed between the projection lens and the reflector.

15. The thin plate shield illuminating apparatus according to claim 14, wherein the angle ranges from 0 to 90 degrees.