Photochromic lens

A color-changing lens and lens technology, applied in the field of color-changing lenses, can solve the problems of slow color-changing speed, reduced use safety, blurred vision, etc., and achieve the effect of fast color-changing speed and improved use effect.

Active Publication Date: 2019-02-12
厦门立扬光学科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing photochromic lenses have the disadvantage of slow discoloration speed. Generally speaking, it takes about 20 seconds for the existing photochromic lenses to change from light color to dark color, and about 50 seconds to change from dark color to light color. Ideal, especially for use in some situations where the environment changes quickly, such as: when a vehicle driving on a highway enters or exits a tunnel, the existing photochromic lenses cannot change color quickly, and often the lenses are still dark after entering the tunnel for a period of time , leading to blurred vision when driving in the tunnel, and the lens is still light-colored after driving out of the tunnel for a period of time, causing strong light to illuminate the human eye and making it impossible to open the eyes, reducing the safety of use

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0025] The color-changing lens in Example 1 is gray, and the color-changing liquid used in the color-changing film 2 is made of the following raw materials according to the ratio of parts by mass: 29 parts of blue toner 8410, 8 parts of green toner 8409, and 5 parts of red toner 8405 , 300 parts of toluene, 200 parts of polytetramethylene ether glycol, 150 parts of acrylic polymer, 7 parts of dimercapto sulfide, 100 parts of poly(methylene phenyl isocyanate), 200 parts of isocyanate compound, 1358 curing 80 parts of agent, 4 parts of 306 leveling agent, 4 parts of dibutyltin dilaurate, 10 parts of BASF light stabilizer 144, 5 parts of 1010 antioxidant, 10 parts of aluminum acetylacetonate.

Embodiment 2

[0026] The color-changing lens in Example 2 is brown, and the color-changing liquid used in the color-changing film 2 is made of the following raw materials according to the proportion by mass: 17 parts of blue toner 8410, 15 parts of green toner 8409, and 13 parts of red toner 8405 , 6 parts of yellow toner 8416, 280 parts of toluene, 130 parts of polytetramethylene ether glycol, 200 parts of acrylic polymer, 2 parts of dimercapto sulfide, 220 parts of poly(methylene phenyl isocyanate), 150 parts of isocyanate compound, 8 parts of 306 leveling agent, 4 parts of dibutyl tin dilaurate, 10 parts of BASF light stabilizer 144, 5 parts of 1010 antioxidant, 10 parts of aluminum acetylacetonate.

[0027] The above-mentioned blue toner 8410, green toner 8409, and red toner 8405 are products of Taiwan Chongyu Technology Co., Ltd. Kunshan Branch. 1358 curing agent and 306 leveling agent are agents of Guangzhou Baohua Trading Co., Ltd. German BYK Chemicals The company's products are all ...

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Abstract

The invention discloses a photochromic lens. The photochromic lens comprises a lens base material and a photochromic film; the photochromic film is formed by spin-coating a photochromic fluid on the lens base material, infrared heating and curing, and cooling; the photochromic film has a thickness of 15 microns; the photochromic fluid is prepared from the following raw materials in part by mass: ablue toner 8410, a green toner 8409, a red toner 8405, toluene, polytetramethylene ether glycol, an acrylic polymer, 2-mercaptoethyl sulfide, poly(methylene phenyl isocyanate), an isocyanate compound, a 1358 curing agent, a 306 flow agent, dibutyltin dilaurate, a BASF light stabilizer 144,a 1010 antioxidant and aluminum acetylacetonate. The transmission rate of the photochromic lens disclosed bythe invention for a wave length of 420-790 nm is 15.63-81.79%; the time required for changing light color to dark color is 3-4 s; the time required for changing dark color to light color is 3-4 s; andthe usage effect is obviously improved.

Description

technical field [0001] The invention relates to the technical field of lenses, in particular to a color-changing lens. Background technique [0002] The so-called photochromic lens is a lens that will become darker when exposed to light of a certain wavelength (usually ultraviolet light), and will return to the original light transmittance when it is no longer illuminated by this light source and become darker. Clear. Due to their unique properties, photochromic lenses are widely used in sunglasses, optical glasses, snow goggles, sports goggles and protective goggles. However, the existing photochromic lenses have the disadvantage of slow discoloration speed. Generally speaking, it takes about 20 seconds for the existing photochromic lenses to change from light color to dark color, and about 50 seconds to change from dark color to light color. Ideal, especially for use in some situations where the environment changes quickly, such as: when a vehicle driving on a highway en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02C7/10G02C7/02G02B1/04
CPCG02B1/041G02C7/022G02C7/105
Inventor 王为城
Owner 厦门立扬光学科技有限公司
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