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High refractivity resin lens with good pigmenting property and method of manufacture

A technology with high refractive index and coloring performance, which is applied in the field of high refractive index resin lenses and its manufacturing, can solve the problems of limited application and promotion, long coloring time, poor effect, etc., and achieve the improvement of the comprehensive index of dyeing performance and the surface molecular structure. Improved, uniform polymerization effect

Active Publication Date: 2008-12-31
SHANGHAI CONANT OPTICS CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

But at present, most of the lenses are produced in the form of semi-finished products, which are dyed and colored according to market demand, which requires the lenses to have good coloring performance in a short period of time; as far as the actual situation is concerned, they are mainly concentrated in low and medium refractive index lenses. High refractive index lenses show the defects of long coloring time and poor effect, which limits their application and promotion

Method used

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  • High refractivity resin lens with good pigmenting property and method of manufacture
  • High refractivity resin lens with good pigmenting property and method of manufacture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Get 18Kg of chemical monomers from the constant temperature and humidity raw material warehouse, add 1.56Kg of modifiers (E2BADMA: PEGDMA: EO3TMPTA = 40: 40: 20) and 0.4Kg of additives and 0.04Kg of initiators in turn and stir, that is, in the lens material The weight percentage of chemical monomer, modifying agent, additive and initiator is: 90:7.8:2:0.20. After stirring for half an hour, stir in a hot water bath and heat up to 38°C, then stir at room temperature and a vacuum of -0.1MPa (gauge pressure) for 3.5 hours, continue to stir for 15 minutes after filtering at 0.1μm, and keep stirring at -0.1MPa ( Gauge pressure) under vacuum for 60 minutes, vertical casting (about 300 pieces). Curing is performed using the following curing temperature variation steps:

[0032] From room temperature 27°C to 35°C in 0.5 hours, after holding at this temperature for 7 hours, then to 52°C in 5.5 hours, then to 88°C in 3 hours, and then to 100°C in 1.5 hours. The temperature was h...

Embodiment 2

[0037] The percentage by weight of the chemical monomers, modifiers, additives and initiators in the lens material is: 85:9.7:5:0.30, and other steps are the same as in Example 1.

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Abstract

The invention relates to a resin lens with good coloring performance and high refractive index and a manufacturing method thereof, and the resin lens is characterized in that: the weight percentage ratio of chemical monomer, modifier, additive and initiator in the lens material is 85 to 92 : 5 to 12 : 2.0 to 8.0 : 0.20 to 0.30. The manufacturing method of the resin lens is characterized in that: when in material preparation, the main chemical monomer, the modifier, the additive and the initiator are fully mixed under the room temperature according to the mixture ratio, then stirring and heating are carried out in a hot water bath tank, a filter core with 0.1Mum is used for filtration, the vacuum pumping is further carried out for 40 to 60 minutes; the prepared materials are pressurized and poured into a closed mold through filter paper and a polytetrafluoroethylene filter film; when in polymerization process of the raw materials, a computer is adopted for the temperature control; the lens is carried out with the secondary curing after opening the mold and cleaning; the BPI staining test is carried out; the volume ratio of dye to deionized water is 3.5 to 5 : 1, the temperature is 90 to 97 DEG C, the coloring time is 20 to 30 minutes and the transmittance after the staining is 19 to 30 percent.

Description

technical field [0001] The invention relates to a method for manufacturing a high-refractive-index resin lens, and in particular discloses a high-refractive-index resin lens with excellent coloring performance and a manufacturing method thereof, which greatly improves the coloring performance of this type of resin lens. Background technique [0002] It has been many years since unsaturated resins have been used to produce various types of refractive index resin lenses, and their advantages such as light weight and strong impact resistance have been improved to varying degrees with the development of technology. But at present, most of the lenses are produced in the form of semi-finished products, which are dyed and colored according to market demand, which requires the lenses to have good coloring performance in a short period of time; as far as the actual situation is concerned, they are mainly concentrated on medium and low refractive index lenses. High-refractive-index le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/04G02C7/02
Inventor 贺建友罗有训
Owner SHANGHAI CONANT OPTICS CO LTD
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