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Wavelength conversion device and laser light source

A wavelength conversion device and laser technology, applied in the field of light sources, can solve the problems of low accuracy of sensor synchronization control, and achieve the effects of precise synchronization control and high work reliability

Inactive Publication Date: 2016-02-24
HISENSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a wavelength conversion device. By setting a reflective film on the non-transmission area of ​​the transparent substrate, the signal of the sensor can be reflected, and the transmission area can transmit the signal of the sensor, so as to solve the sensor synchronization control accuracy of the wavelength conversion device in the prior art. low technical issues

Method used

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  • Wavelength conversion device and laser light source
  • Wavelength conversion device and laser light source
  • Wavelength conversion device and laser light source

Examples

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Embodiment 1

[0039] The present invention aims to provide a wavelength conversion device, such as figure 2 As shown, the wavelength conversion device 01 includes a motor 02, and the motor 02 drives a substrate 03, which is usually in the shape of a disc, rotates periodically, and receives laser irradiation. Wherein, the substrate 03 includes a non-transmissive area 04 and a transmissive area 05, and the non-transmissive area and the transmissive area form a disk-shaped wheel surface. That is to say, the names of the above-mentioned partitions mentioned in other embodiments of the present invention also have the same meaning as the embodiments of the present invention. Wherein, the substrate 03 is made of a transparent material, such as transparent glass, capable of transmitting light, including infrared light. The transmission area 05 is made of a transparent material, usually transparent glass, for transmitting the incident laser light.

[0040] see Figure 3A and Figure 3B, the non...

Embodiment 2

[0058] The same parts and similar principle derivations in this embodiment of the present invention and Embodiment 1 will not be repeated here. The difference is that in this embodiment, as Figure 8A As shown, the fluorescent region 04a is a fluorescent partition of one color, specifically including the green fluorescent region 41, and the transmissive region 05 is used to transmit blue laser light. or as Figure 8B As shown, the fluorescent region 04a is a green fluorescent region 41, and the transmissive region 05 includes a transmissive region 51 and a transmissive region 52, which are used to transmit blue laser light and red laser light respectively. In this specific embodiment, the provided wavelength conversion device receives Two kinds of blue and red lasers are incident, and correspondingly, the incident laser light source is a two-color laser light source.

[0059]Similarly, the reflective film is disposed on the fan-shaped area where the green fluorescent region 4...

Embodiment 3

[0063] Embodiment 3 of the present invention proposes a wavelength conversion device 11, such as Figure 10 As shown, the difference from Embodiment 1 and Embodiment 2 is that the sensor 06 in the embodiment of the present invention is a group of sensors, including a sending sensor 61 and a receiving sensor 62, which are respectively located on both sides of the wavelength conversion device, specifically , see Figure 10 , the transmitting sensor 61 is located on the light-incident side of the wavelength conversion device 11 , and the receiving sensor 62 is located on the light-emitting side of the wavelength conversion device 11 .

[0064] Assuming that the setting of the reflective film in the embodiment of the present invention is as follows Figure 4B As shown, it is a circular ring area located within the range of the fluorescent area 14 .

[0065] Based on the above settings, the working process of the wavelength conversion device is as follows:

[0066] When the send...

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Abstract

The invention discloses a wavelength conversion device, and the device rotates periodically and receives laser irradiation. The device comprises a substrate, and the substrate comprises a transmission region and a non-transmission region. The device also comprises a sensor, and a signal emitted by the sensor sequentially passes through the non-transmission region and the transmission region. At least a part of the non-transmission region is provided with a reflection film. Therefore, the non-transmission region is provided with a reflection film, and the reflection film can reflect the signal emitted by the sensor. The transmission region allows the signal emitted by the sensor to be transmitted, thereby enabling the sensor to be capable of forming corresponding waveform signals according to the reflection or transmission of the signal. The changes of the waveform signals can accurately reflect the switching changes of color sections, thereby improving the synchronous control precision of the device. Meanwhile, there is no need of an additional MARK block for cooperating with the sensor, thereby improving the working reliability. The invention also discloses a laser light source device, and the laser light source device can improve the synchronization of a two-color wheel in a light source, and provides a high-quality illumination light source.

Description

technical field [0001] The invention relates to the field of light source technology, in particular to a wavelength conversion device and a laser light source. Background technique [0002] As a solid-state light source, laser light source has a series of advantages such as high brightness, high efficiency, long life, good color gamut, and environmental protection, and has become the choice of emerging projection light source. [0003] Among the laser light sources currently used in the industry, wavelength conversion devices are used to generate fluorescence other than the laser color, which together form three primary colors. In an implementation of the prior art, the wavelength conversion device is provided with at least one kind of fluorescent powder, and through periodic rotation, the blue laser is sequentially hit on the fluorescent powder area to excite the fluorescent powder to generate fluorescence of the corresponding color, and transmit The area directly transmit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20
CPCG03B21/204G03B21/2066
Inventor 赵飞
Owner HISENSE
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