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Rotating disc type single-color LED light source system

A technology of LED light source and turntable type, which is applied in the direction of light source, semiconductor device of light-emitting element, lighting device, etc. It can solve the problems of monochromatic light radiance difference, difficult spectral response research, inconvenient use, etc., and achieve stable light output. Good heat dissipation performance and long-term working stability

Pending Publication Date: 2020-03-27
FUDAN UNIV +1
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  • Claims
  • Application Information

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Problems solved by technology

However, this kind of light source equipment is too bulky and inconvenient to use, and because the spectral profile of the xenon lamp has a peak, the spectral intensity difference in the range of 200-1000nm is as high as dozens of times, such as Figure 5 shown
Therefore, there are orders of magnitude differences in the radiance of monochromatic light of different wavelengths obtained in this way, and it is difficult to be widely used in spectral response research.

Method used

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  • Rotating disc type single-color LED light source system
  • Rotating disc type single-color LED light source system
  • Rotating disc type single-color LED light source system

Examples

Experimental program
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Embodiment 1

[0025] This embodiment is used for the visible standard light source used in the visual ergonomics experiment. The light source requirement for the visual ergonomics experiment is a peak wavelength range of 380-780nm, with a peak wavelength every 10nm, and a total of 41 visible monochromatic wavelengths.

[0026] Such as figure 1 and figure 2 As shown, this embodiment provides a turntable type monochromatic LED light source system, including a heat dissipation turntable 1 , a plurality of monochromatic LED light source modules 2 and a plurality of cooling modules 3 . In this embodiment, three single-color LED light source modules 2 and three cooling modules 3 are used. Three single-color LED light source modules 2 are installed on the upper surface of the cooling turntable 1 and evenly distributed on the circumference. The center of the lower surface of the heat dissipation turntable 1 is connected with a rotating bracket (not shown in the figure). Through the rotation of...

Embodiment 2

[0035]The overall structure of this embodiment is the same as that of Embodiment 1. The difference is that this embodiment is used for the ultraviolet standard light source for photochemical reaction, and the monochromatic LED light source module 2 adopts the ultraviolet monochromatic LED light source module 2 with three wavelengths of UVC, UVB and UVA. The substrate of the interference filter 25 is quartz glass, FWHM=10nm. The heat sink base 21 of the monochromatic LED light source module 2 adopts a hot pressing plate to enhance heat dissipation. In this embodiment, the junction temperature testing device sets the junction temperature of the LED chip 22 of the monochromatic LED light source module 2 at 60°C, and the LED light source packaged with a high power density chip can achieve a radiation output of 1W / cm 2 The above UV output is used to study the relative efficiency of photochemical reactions to UV wavelengths.

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Abstract

The invention relates to a rotating disc type single-color LED light source system. The rotating disc type single-color LED light source system comprises a heat dissipation turntable, a plurality of single-color LED light source modules and a plurality of cooling modules; the plurality of single-color LED light source modules are mounted on the upper surface of the heat dissipation turntable and are uniformly distributed on the circumference; a plurality of heat dissipation pipelines are arranged in the heat dissipation turntable; each heat dissipation pipeline is distributed below one single-color LED light source module; the cooling modules are connected to the heat dissipation pipelines, wherein each single-color LED light source module comprises a heat sink base, an LED chip, a constant-current power supply, a junction temperature testing device and a photometric sensor, the heat sink base is arranged on the heat dissipation turntable, the LED chip and the junction temperature testing device are arranged in the heat sink base, the photometric sensor is connected with the constant-current power supply, and the junction temperature testing device is connected with the cooling module. Compared with the prior art, the light source emitted by the invention is rich in wavelength, the rotating disc type single-color LED light source system is good in heat dissipation performance and stable in long-term operation, and can be used as a standard light source for various photochemical and photobiological experiments and tests.

Description

technical field [0001] The invention relates to the field of semiconductor lighting, in particular to a turntable type monochrome LED light source system. Background technique [0002] With the continuous advancement of lighting technology, LED (Light Emitting Diode) is gradually replacing the traditional heat radiation light source and gas discharge light source, becoming a new generation of mainstream lighting source, and has been widely used in the fields of general lighting and special lighting. As a light source, LED has the following advantages: the spectrum covers the ultraviolet region, visible region and infrared region; high luminous efficiency, low energy consumption; small size, flexible application; fast response, easy adjustment; reliable, durable, long life, green and pollution-free, etc. . [0003] Various physical, chemical, and biological reactions related to light involve many aspects such as industrial production, scientific and technological research, a...

Claims

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Application Information

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IPC IPC(8): F21K9/238F21K9/64F21V29/57F21V29/89F21V23/00F21Y115/10
CPCF21K9/238F21K9/64F21V23/003F21V29/57F21V29/89F21Y2115/10
Inventor 韩秋漪沈志豪荆忠张善端
Owner FUDAN UNIV
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