A kind of purple light led production method containing silica gel lens and purple light led

Abstract

The invention discloses a production method of a violet LED with a silica gel lens and the violet LED. According to the production method, solid crystallization and wire bonding are firstly carried out on a violet LED chip in a bracket bowl and then adhesive dispensing is carried out to flattening a groove part of the bracket bowl; and after transparent cement is sprayed, a die is directly buckledon the transparent cement to directly carry out a die ejection process so as to form a convex silica gel lens, and curing is carried out to obtain a finished product. The violet LED prepared according to the method comprises the bracket bowl and the groove, wherein the groove is internally provided with the violet LED chip and first transparent silica gel; the upper surface of the first transparent silica gel is level with the top surface of the bracket bowl; a cement layer is arranged on the upper surface of the first transparent silica gel; the upper surface of the cement layer is connectedwith second transparent silica gel formed by die ejection; and a convex lens-shaped bulge is formed on the upper surface of the second transparent silica gel. The production method is not only capable of prolonging the service life of the violet LED, but also capable of improving the light power, enlarging the application range, reducing the defective percentage and improving the processing efficiency and product consistency.

Description

technical field [0001] The invention relates to a production method of a violet LED and the violet LED, in particular to a production method of the violet LED containing a silica gel lens and the violet LED. Background technique [0002] At present, with the increasing application of purple light in the fields of industrial curing and sterilization, in-line packaged purple light LEDs have begun to appear on the market; the existing in-line packaged purple light LEDs are generally packaged with epoxy resin, but ultraviolet light It will destroy the epoxy resin, resulting in a decrease in the permeability of ultraviolet light, resulting in a large attenuation of ultraviolet light power and a short service life. [0003] In order to solve the above problems, SMD packaging is now used instead; generally, the purple LED chip is placed in the bracket cup for bonding wires, and then directly uses a glue dispenser and transparent silica gel to seal the groove on the bracket cup. po...

AI Technical Summary

Problems solved by technology

However, the silica gel of the purple LED formed by this structure can only fill the groove of the bracket bowl and form a rubber surface with an angle of 140 degrees, resulting in a very low optical power of the purple LED; it is used for industrial curing, sterilization, etc. that require high optical power. In the field of LED applications, it is necessary to increase the number of purple LEDs to meet the requirements, the cost is high and the energy consumption is large, and the application range of LEDs is narrow

[0004] Therefore, the existing violet LEDs have the problems of short service life, low optical power and narrow application range.

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