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LED detection apparatus

A detection device and light-emitting diode technology, which is applied in the direction of single semiconductor device testing, etc., can solve problems affecting the accuracy of light-emitting diode chip luminous efficiency, light loss, and increasing the detection time of light-emitting diode chip complexity, so as to reduce light loss and improve Accuracy, complexity reduction effect

Inactive Publication Date: 2014-06-25
GENESIS PHOTONICS
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Problems solved by technology

However, when using the existing spot measuring machine, the user not only has to select an appropriate photo-sensing device to sense the luminous efficiency of the LED chip, but also in actual operation, the user often needs to , and it is necessary to adjust the relative position of the light-sensing device and the light-emitting diode chip, which really increases the complexity of the user's detection of the light-emitting diode chip and the required detection time
In addition, the path of light passing through the stage to the photo-sensing device is prone to light loss due to light refraction, which affects the accuracy of detecting the luminous efficiency of the light-emitting diode chip

Method used

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Embodiment Construction

[0038] The LED testing device of the present invention at least includes a base with a photoelectric conversion function and a spot measuring device. Wherein, the measuring device includes a power supply and at least two conductive elements. In an embodiment of the present invention, the conductive element may be, for example, a probe or a conductive film. Users can choose probes or conductive films according to actual needs to electrically contact and apply voltage to the LED chips. However, in the LED detection device of the present invention, the conductive element is not limited to the above-mentioned probe or conductive film, any conductive element that can provide the voltage of the LED chip so that the LED chip can emit light belongs to the protection of the present invention range.

[0039] see figure 1 , which is a schematic cross-sectional view of the first preferred embodiment of the LED detection device of the present invention. Such as figure 1 As shown, the ...

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Abstract

Disclosed is an LED detection apparatus. The LED detection apparatus at least comprises a pedestal with a photoelectric conversion function, and a point measuring device. The pedestal is used for bearing at least one light emitting diode wafer. The point measuring device comprises a power supply device and at least two conductive elements. The two ends of each conductive element are respectively in electrical connection with the light emitting diode wafer and the power supply device so as to enable the light emitting diode wafer to emit light. Part of light emitted by the light emitting diode wafer is oriented towards the pedestal so as to enable the pedestal to convert the light emitted by the light emitting diode wafer into an electronic signal.

Description

【Technical field】 [0001] The present invention relates to a detection device, in particular to an LED detection device. 【Background technique】 [0002] With the advancement of science and technology and the improvement of quality of life, modern people pay more and more attention to lighting. From ancient times, torches, animal and vegetable oil lamps, candles, kerosene lamps that use substances to burn for luminous lighting, incandescent lamps and fluorescent lamps that emit light with electricity, or light-emitting diodes (LEDs) commonly used today, all show that lighting is in It plays a very important role in human's daily life. [0003] Light-emitting diodes use the combination of electrons and holes to emit monochromatic light to achieve lighting or warning functions. Compared with traditional light sources, light-emitting diodes have the advantages of high luminous efficiency, long service life, not easy to break, and fast response speed. Due to the vigorous promot...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/26
Inventor 吴岱纬蔡泰成林信宏蔡秉宗黄佩怡许国君许寿文李允立
Owner GENESIS PHOTONICS