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Manufacturing method of novel UV420 lens

A UV420, manufacturing method technology, applied in optical components, optics, instruments, etc., can solve problems such as high-energy blue-violet light blocking, and achieve the effects of easy control, reducing process chains, and preventing lens aging

Inactive Publication Date: 2016-08-24
ZENNI OPTICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a manufacturing process of UV420 resin lens that blocks a specific wavelength, which mainly solves the problem of high-energy blue-violet light blocking, and improves the UV protection function of the lens to UV420 through a reasonable manufacturing method.

Method used

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  • Manufacturing method of novel UV420 lens
  • Manufacturing method of novel UV420 lens
  • Manufacturing method of novel UV420 lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The technical scheme adopted in this embodiment is: a kind of manufacturing method of novel UV420 lens, and this technique comprises the following steps:

[0023] Step 1: Lens treatment: put CR-39, KOC 1.56, MR (1.60, 1.67, and 1.74) series resin lenses into the area to be hardened by category 2, and perform visual inspection on the lenses, clean them after pretreatment, and put them on the fixture;

[0024] Step 2: Solution preparation: add a UV absorber that can block the upper limit of 420nm in the hardening primer and top coating solution used by the dip coating hardening machine or in the hardening solution of the spin coating machine. The amount of the UV absorbent 1%, and fully stirred and mixed, and then added to the dipping and hardening machine with a 5μm filter element to circulate for 24 hours;

[0025] Step 3: Hardening and curing: The lens is hardened and cured by dip coating to form a hardened layer 1. After the lens is etched, cleaned and dried by ultras...

Embodiment 2

[0031] The technical scheme adopted in this embodiment is: a kind of manufacturing method of novel UV420 lens, and this technique comprises the following steps:

[0032] Step 1: Lens treatment: put CR-39, KOC 1.56, MR (1.60, 1.67, and 1.74) series resin lenses into the area to be hardened by category 2, and perform visual inspection on the lenses, clean them after pretreatment, and put them on the fixture;

[0033] Step 2: Solution preparation: add a UV absorber that can block the upper limit of 420nm in the hardening primer and top coating solution used by the dip coating hardening machine or in the hardening solution of the spin coating machine. The amount of the UV absorbent 1.2%, and fully stirred and mixed, and then added to the dipping and hardening machine with a 5μm filter element to circulate for 24 hours;

[0034] Step 3: Hardening and curing: The lens is hardened and cured by dip coating to form a hardened layer 1. After the lens is etched, cleaned and dried by ultr...

Embodiment 3

[0039] The technical scheme adopted in this embodiment is: a kind of manufacturing method of novel UV420 lens, and this technique comprises the following steps:

[0040] Step 1: Lens treatment: perform visual inspection and pretreatment on the resin mirror 2;

[0041] Step 2: Solution preparation: add a UV absorber that can block the upper limit of 420nm to the hardening solution used by the spin coater. 5μm filter cycle 2h;

[0042] Step 3: hardening and curing: the surface of the lens is hardened and cured by spin coating to form a hardening layer 1. After the lens is etched, cleaned and dried by ultrasonic KOH, the spin coating speed is adjusted to 400r / min , UV curing is adjusted to 2200r / min, and UV curing is 20s;

[0043] Step 4: Lens coating: After completing step 3, transfer the hardened and cured lens to Leybold vacuum coating machine to add coating layer 3;

[0044] Step 5: Inspection: The lens is tested according to the lens quality inspection ISO standard and th...

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Abstract

The invention discloses a manufacturing method of a novel UV420 lens. The novel UV420 lens is different from a traditional UV380 and a traditional UV420 lens in that the blocking wavelength upper limit of the novel UV420 lens can be raised to 420nm. The manufacturing method mainly includes the steps of lens processing, solution preparation, curing, film coating and detection. According to the manufacturing method, an additive (UV420) is added into a hard coat, so that UV hardening of the lens can be realized, and therefore, a process chain can be shortened, and production cost can be reduced, and the UV blocking wavelength upper limit of the lens obtained through adopting the manufacturing method can be effectively improved to 420nm, and eyes can be better protected.

Description

technical field [0001] The invention relates to the technical field of lens manufacturing, in particular to a manufacturing method for blocking a specific wavelength UV420 lens. Background technique [0002] Resin lenses are currently the most common lenses in the world, with excellent optical properties, impact resistance, non-fragile, and light weight. Due to the characteristics of the resin lens itself, except for PC lenses, other resin lenses cannot block all ultraviolet rays, and the damage of ultraviolet rays to the human body cannot be ignored. At present, the lenses can only block the following wavelength bands by adding corresponding UV powder and coating : UVC (short-wave ultraviolet) radiation has the shortest wavelength (100-280 nanometers); UVB (medium-wave ultraviolet) radiation has a wavelength of 280-320 nanometers. Small amounts of UVB can penetrate the ozone layer, and 10% or less of UVB radiation can reach the surface. UVB is one of the causes of skin ag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/14G02B5/22
CPCG02B5/22
Inventor 刘锋
Owner ZENNI OPTICAL
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