Luminescence apparatus, projection display apparatus and lamp fixture

A light-emitting device, laser technology, applied in the field of light sources, can solve the problem of no appearance

Active Publication Date: 2015-11-18
SHANGHAI BLUE LAKE LIGHTING TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the actual situation is that the service life of the light source manufactured by this method is only thousands of hours, and there has never been a real long-life light source product solution.

Method used

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  • Luminescence apparatus, projection display apparatus and lamp fixture
  • Luminescence apparatus, projection display apparatus and lamp fixture
  • Luminescence apparatus, projection display apparatus and lamp fixture

Examples

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Embodiment Construction

[0014] As mentioned in the background art, the service life of existing laser light sources is only thousands of hours. Although many products on the market have a service life of 20,000 hours or more on the specifications, it can be seen from the actual measurement data that there are a lot of false claims about the service life. Of course, this kind of market-oriented propaganda method does not need to be discussed here.

[0015] In fact, in order to extend the service life of laser light source products, the industry has spent a lot of time, manpower and material resources on research, and some research results have also been obtained. The study found that on the laser optical path, due to the action of the laser, the surface of the optical element is prone to deposit dust, and the continuous accumulation of dust causes the brightness to decrease continuously. When it finally drops to half of the initial brightness value, the service life is considered to be over according ...

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PUM

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Abstract

The invention brings forward a luminescence apparatus, a projection display apparatus and a lamp fixture. The luminescence apparatus comprises a laser source and an optical system, also comprises a first housing which is formed by assembling at least two first housing assemblies for enclosing the laser source and the optical system inside, and further comprises a wavelength conversion rotation disc for receiving laser emitted from a laser exit port of the first housing and at least partially converting the laser into stimulated light. The luminescence apparatus also comprises a second housing which is formed by assembling at least two second housing assemblies for enclosing the first housing and the wavelength conversion rotation disc inside, wherein the inner surface of the second housing comprises a second heat dissipation area opposite to a first heat dissipation area in terms of positions, and the first heat dissipation area is in hot connection with the second heat dissipation area. According to the invention, the laser source and the optical system are enclosed by the first housing and the second housing for two times, and compared to enclosing once, the probability that dust passes through two enclosures to go into a laser optical path is reduced by several orders of magnitude.

Description

technical field [0001] The invention relates to the field of light sources, in particular to a light emitting device, a lamp and a projection display device using the light emitting device. Background technique [0002] At present, the laser excites the rotating phosphor turntable to generate time-sharing fluorescence, and this method has been widely used in the projection display industry. Due to the use of all solid-state luminescent materials, this solution has a theoretically high service life, which can reach tens of thousands of hours. However, the actual situation is that the service life of the light source manufactured by this method is only thousands of hours, and there has never been a real long-life light source product solution. Contents of the invention [0003] In order to solve the service life problem of the above-mentioned laser light source, the present invention proposes a light emitting device, including a laser source and an optical system, the o...

Claims

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Application Information

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IPC IPC(8): G03B21/20G03B21/16F21V9/10F21V29/60F21V9/40
Inventor 杨毅
Owner SHANGHAI BLUE LAKE LIGHTING TECH CO LTD
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