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Light source system and related projection system

A technology of a light source system and a laser light source, applied in optics, optical elements for changing the spectral characteristics of emitted light, lighting devices, etc., can solve the problems of increasing the cost of the light source system and the inability to effectively control the volume and cost of the light source system at the same time. To achieve the effect of cost control

Active Publication Date: 2017-05-17
APPOTRONICS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But among the LDs of various colors, the cost of even the cheapest blue LD is much higher than that of LED, and the cost of green LD and red LD is much higher than that of blue LD
However, in the outgoing light of the existing light source system, the green and red components are often weak and need to be improved. Therefore, if LD is used to replace LED to improve the luminous flux output of the light source system, it is often necessary to use particularly expensive green and red LDs. , leading to a substantial increase in the cost of the light source system
Therefore, the existing technology cannot effectively control the volume and cost of the light source system at the same time when the light source system achieves a higher luminous flux output.

Method used

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  • Light source system and related projection system
  • Light source system and related projection system

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Embodiment 1

[0031] see figure 1 , figure 1 It is a side view of an embodiment of the light source system in the embodiment of the present invention. Such as figure 1 As shown, the light source system 100 includes a light emitting device including an LED array 110 , a laser light source 120 , a wavelength converting device 130 and a driving device 140 .

[0032] The LED array 110 includes a substrate 111 and a plurality of LED chips 112 disposed on the substrate 111 . The substrate 111 is preferably a copper substrate, and the LED chip can be fixed on the substrate 111 by welding, bonding or other connection methods. The LED chip array can be arranged in a matrix, in a line or in a concentric circle, etc., and can be designed according to different needs of the application field. The LED chip 112 is used to generate the first light L1.

[0033] The laser light source 120 can be a single laser diode, or a laser array composed of more than two laser diodes. The laser light source 120 i...

Embodiment 2

[0047] see Figure 2a and Figure 2b , Figure 2a It is a side view of another embodiment of the light source system in the embodiment of the present invention; Figure 2b yes Figure 2a Front view of the wavelength conversion device in the illustrated embodiment. As shown in FIG. 2 , the light emitting device of the light source system 200 includes an LED array 210 , a laser light source 220 , a wavelength converting device 230 and a driving device 240 . The LED array 210 includes a substrate 211 and a plurality of LED chips 212 .

[0048] This embodiment and figure 1 Differences in the illustrated embodiments include:

[0049] (1) The LED array 210 also includes a light-through hole 214, and the wavelength conversion device 230 is arranged on the back side of the light-emitting surface of the LED array 210, and the outgoing light L3 of the wavelength conversion device is incident on the back side of the light-emitting surface of the LED array and passes through. The l...

Embodiment 3

[0053] see image 3 , image 3 It is a side view of another embodiment of the light source system in the embodiment of the present invention. Such as image 3 As shown, the light emitting device of the light source system 300 includes an LED array 310 , a laser light source 320 , a wavelength converting device 330 , a driving device 340 and a collimating lens 350 . The LED array 310 includes a substrate 311 , a plurality of LED chips 312 and a collimating lens 313 .

[0054] This embodiment and Figure 2a Differences in the illustrated embodiments include:

[0055] The LED array of the light source system 300 does not include a light hole, but the light emitting device of the light source system 300 also includes a reflector 360, which is located on one side of the light emitting surface of the LED array, and the outgoing light L3 of the wavelength conversion device 330 is incident on the The reflecting device is reflected by the reflecting device to combine with the firs...

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Abstract

The embodiment of the invention discloses a light source system and a related projection system. The light source system comprises a light-emitting device. The light-emitting device comprises a light-emitting diode (LED) array, a laser source, a wavelength conversion device and a driving device. The LED array is used for generating first light; the laser source is used for generating laser; the wavelength conversion device comprises a wavelength conversion layer which is used for absorbing laser so as to generate stimulated light; the wavelength conversion device emits at least partial light of the stimulated light, or the mixed light of the at least partial light of the stimulated light and at least partial light of the laser which is not absorbed; the driving device is used for driving the wavelength conversion device, so that light spots which are formed by the laser on the wavelength conversion layer act on the wavelength conversion layer along a preset path; and the first light and the emitted light of the wavelength conversion device are combined into a light beam in the way of geometric light combination. The size and the cost can be effectively controlled while the light source system achieves higher output light flux.

Description

[0001] The present invention is a divisional application of an invention patent with application number 201210123211.5, titled "Light Source System and Related Projection System", and application date of 2012.4.24. technical field [0002] The invention relates to the technical field of illumination and display, in particular to a light source system and a related projection system. Background technique [0003] Light Emitting Diode (LED, Light Emitting Diode) is a semiconductor solid light source that can directly convert electricity into visible light. Compared with traditional light sources, it has the advantages of long life, high luminous efficiency, no radiation and low power consumption. With the intensification of energy shortages and climate warming that have plagued the world in recent years, the application of semiconductor LED light sources in various industries has become more and more popular, and there is a tendency to replace traditional light sources. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/20F21V9/40
CPCG03B21/2013G03B21/204G03B21/2053
Inventor 李屹张权
Owner APPOTRONICS CORP LTD
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