Fluorescence lens, manufacturing method thereof and white-light lighting lamp manufactured by using fluorescence lens

Abstract

The invention discloses a fluorescence lens formed by combining a concave lens and a convex lens, and a fluorescent powder layer is filled on the surface of the convex lens. A manufacturing method of the fluorescence lens comprises the following steps: (1) acquiring optical parameters of the fluorescence lens matched with an optical fiber; (2) manufacturing an optical-grade mould core with high precision; (3) assembling and forming a mould and injection molding a transparent optical material such as optical-grade polycarbonate or acryl and the like into a plastic lens with high precision through an electric injection molding machine; and (4) covering a fluorescent powder layer on the surface of the convex lens of the plastic lens to form the fluorescence lens. A white-light lighting lamp manufactured by using the fluorescence lens comprises the optical fiber, the fluorescence lens, a diode light-emitting module and a power supply module which are sequentially matched and arranged and detachably fastened and connected through a mechanical structure. The fluorescence lens has fewer manufacturing processes and is low in cost, one light-emitting module only needs one fluorescence lens, and only the fluorescence lenses with different color fluorescent powder proportions are needed to be replaced without secondary light distribution.

Description

technical field [0001] The invention relates to the technical field of white light illuminating lamps, in particular to a fluorescent lens, a manufacturing method thereof, and a white light illuminating lamp manufactured with the fluorescent lens. Background technique [0002] The existing LED packaging technology usually mixes phosphor powder and transparent packaging glue, then uses a dispenser to dispense the phosphor powder and transparent packaging glue on the LED chip, and then adds a lens to complete the packaging, but in the actual operation process Among them, if the proportion of phosphor powder is not accurate, and the test after dispensing does not meet the requirements, the entire lamp chip can only be discarded, because the cost of LED chips accounts for more than 90% of the total cost of LED lamp chips, which increases the production cost. At present, only dispensing mode can be used on LED chips, and other methods such as evaporation and sputtering cannot be ...

AI Technical Summary

Problems solved by technology

[0002] The existing LED packaging technology usually mixes phosphor powder and transparent packaging glue, then uses a dispenser to dispense the phosphor powder and transparent packaging glue on the LED chip, and then adds a lens to complete the packaging, but in the actual operation process Among them, if the ratio of phosphor powder is inaccurate and the test after dispensing does not meet the requirements, the entire lamp chip can only be discarded, because the cost of LED chips accounts for more than 90% of the total cost of LED lamp chips, which increases the production cost

At present, only dispensing mode can be used on LED chips, and other methods such as evaporation and sputtering cannot be directly operated on LED chips.

The disadvantage of glue dispensing is that after the phosphor powder is mixed with the glue, it is difficult to control the uniformity

Because the phosphor powder is easy to precipitate, it leads to uneven glue distribution and poor control of glue quantity, resulting in poor light uniformity, poor color tone consistency, easy deviation of color temperature and unsatisfactory color rendering

The dispensing process cannot be processed independently

Affect the speed of LED packaging, these problems need to be solved

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