Irradiating device

• US 10,300,841 B2
• Filed: 04/06/2018
• Issued: 05/28/2019
• Est. Priority Date: 04/12/2017
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Tokai RIKA Denki Seisakusho
• Original Assignee: Kabushiki Kaisha Tokai RIKA Denki Seisakusho
• Inventors: Nakayama, Yuto, Yokoyama, Kazuyuki
• Primary Examiner(s): Williams, Joseph L
• Application Number:
  US15/947,325
• Publication Number:
  US 20180297512A1
• Time in Patent Office: 417 Days
• CPC Class Codes: B60Q 1/2665 on rear-view mirrors lighting devices for vehicle interior on or for rear-view mirrors B60Q3/258
• CPC Class Codes: B60Q 1/2696 Mounting of devices using LEDs
• CPC Class Codes: B60R 1/06 mounted on vehicle exterior B60R1/025, B60R1/08 take precedence
• CPC Class Codes: B60R 1/12 Mirror assemblies combined with other articles, e.g. clocks
• CPC Class Codes: F21S 43/14 Light emitting diodes [LED]
• CPC Class Codes: F21S 43/315 using total internal reflection
• CPC Class Codes: F21S 43/40 characterised by the combination of reflectors and refractors
• CPC Class Codes: F21V 5/04 of lens shape
• CPC Class Codes: G02B 19/0028 refractive and reflective surfaces, e.g. non-imaging catadioptric systems
• CPC Class Codes: G02B 19/0061 the light source comprising a LED semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission H01L33/00
• CPC Class Codes: G02B 19/0071 adapted to illuminate a complete hemisphere or a plane extending 360 degrees around the source

Abstract

In a vehicle lamp device, light emitted by a LED enters a concentration element of a lens and is irradiated from an irradiating face of the concentration element. The reflecting face of the concentration element surrounds a central axis of the concentration element. Light that enters the concentration element is reflected by the reflecting face toward a central axis side of the concentration element, and light reflected by the reflecting face is irradiated from the irradiating face. The concentration element is thus able to efficiently concentrate light emitted by the LED.

Claims

1. An irradiating device comprising:

an emitter that is provided at a vehicle and that emits light; and

an irradiating body that is disposed at one side of the emitter, and at which a reflecting face is provided so as to surround the emitter, the reflecting face reflecting light emitted by the emitter toward a side of a central axis of the irradiating body, and the irradiating body irradiating light reflected by the reflecting face toward the one side.

2. The irradiating device of claim 1, further comprising an irradiating face that is provided at the irradiating body, wherein:

the irradiating face is concave toward another side, and the irradiating face irradiates light reflected by the reflecting face toward the one side of the irradiating body.

3. The irradiating device of claim 1, further comprising an incident face that is provided at the irradiating body at a center side of the reflecting face, wherein:

the incident face is convex toward another side, and light emitted by the emitter is incident at the incident face.

4. The irradiating device of claim 2, further comprising an incident face that is provided at the irradiating body at a center side of the reflecting face, wherein:

the incident face is convex toward the another side, and light emitted by the emitter is incident at the incident face.

5. The irradiating device of claim 1, wherein the emitter is disposed at an inner side of the reflecting face.

6. The irradiating device of claim 2, wherein the emitter is disposed at an inner side of the reflecting face.

7. The irradiating device of claim 4, wherein the emitter is disposed at an inner side of the reflecting face.

8. The irradiating device of claim 1, wherein the irradiating device is installed at a door mirror device.

9. The irradiating device of claim 1, wherein the reflecting face, structuring a side peripheral face of the irradiating body, is a total reflection face at which light is totally-reflected.

10. The irradiating device of claim 8, wherein the reflecting face, structuring a side peripheral face of the irradiating body, is a total reflection face at which light is totally-reflected.

11. An irradiating device, installed at a door mirror device, the irradiating device comprising:

an emitter that emits light; and

an irradiating body that is disposed at one side of the emitter, and at which a reflecting face is provided so as to surround the emitter, the reflecting face reflecting light emitted by the emitter toward a side of a central axis of the irradiating body, and the irradiating body irradiating light reflected by the reflecting face toward the one side.