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Novel dispenser with fluorescent powder thickness visual detection device

A visual inspection device and a technology for a glue dispenser, applied in the field of glue dispensers, can solve problems such as wasting productivity resources, and achieve the effect of improving automation procedures and improving production efficiency

Inactive Publication Date: 2013-12-11
SOUTH CHINA UNIV OF TECH
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  • Summary
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  • Description
  • Claims
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Problems solved by technology

If there is no detection device for phosphor thickness, LED products with unqualified phosphor thickness must also go through subsequent processes such as glue injection, which will waste a lot of productivity resources

Method used

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  • Novel dispenser with fluorescent powder thickness visual detection device
  • Novel dispenser with fluorescent powder thickness visual detection device

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Embodiment Construction

[0015] The present invention will be described in detail below with reference to the drawings, but the embodiments of the present invention are not limited thereto.

[0016] Such as figure 1 As shown, a new type of glue dispenser with a phosphor thickness visual inspection device includes the glue dispenser 2 and a visual inspection device arranged on the LED dispenser 2 for detecting the thickness of the phosphor.

[0017] Further, the visual inspection device includes a laser transmitter 1 arranged on a mechanical fixing device on one side of the dispenser 2 and a camera with image processing function arranged on a mechanical fixing device on the other side of the dispenser 2. 3. The camera is connected to the PC 4 in a circuit.

[0018] Further, the laser transmitter 1 and the camera 3 are fixed by a mechanical device, so that the emitted laser light hits the surface of the LED chip at a certain oblique and fixed angle, and the light reflected from the surface of the LED chip is p...

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Abstract

A novel dispenser with a fluorescent powder thickness visual detection device comprises a dispenser, a laser transmitter, a camera with an image processing function and a mechanical fixing device, can be used for calculating the thickness of the fluorescent powder by collecting images formed on the camera by light reflected by the surface of an LED chip surface before and after dispensing, and can be used for judging whether the dispensing thickness is qualified or not. According to the invention, the automation program of LED dispensing can be improved, the production efficiency is improved, and the dispensing quality can be detected.

Description

[0001] Technical field [0002] The invention relates to a glue dispensing machine in the LED packaging process, in particular to a novel glue dispensing machine with a phosphor thickness visual inspection device. Background technique [0003] LED, or Light Emitting Diode, is a semiconductor device that can convert electrical energy into visible light. In application fields such as lighting and display, LED has the characteristics of low power consumption and long life, and the market prospect is very broad. In LED lighting, white light is mainly converted by exciting phosphors at present. For example, blue light emitted by a blue LED chip and yellow light obtained after the phosphor is excited by blue light are mixed to obtain white light. This method has low cost, simple manufacturing process, and good color rendering of the formed white light. Most white light LEDs are manufactured in this way. [0004] At present, this method of preparing white light LEDs mainly adopts the tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C5/00B05C11/02H01L33/48
Inventor 陈安关振明胡跃明吴忻生
Owner SOUTH CHINA UNIV OF TECH
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