Ultraviolet protective lens and preparation method
A lens and ultraviolet technology, applied in the field of optical lenses, can solve the problems of low visible light transmittance, affecting human observation, etc., and achieve good ultraviolet protection effect and high visible light transmission effect
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[0013] Example 1:
[0014] The preparation method of ultraviolet protective lens includes the following steps:
[0015] (1) The glass substrate to be coated is cleaned by ultrasonic to remove stains and dried;
[0016] (2) Place the glass substrate to be coated in the vacuum chamber of the vacuum coating machine, in the 3×10 -3 Bombard the glass substrate with an ion gun under Pa vacuum;
[0017] (3) In 3×10 -3 Under Pa vacuum degree and glass substrate temperature 300℃, use ion gun to bombard the coating material in sequence, and alternately coat titanium dioxide film and silicon dioxide film from the glass substrate outwards, using the film thickness controller in the vacuum coating machine Control the thickness of the titanium dioxide film to 20nm and the thickness of the silicon dioxide film to 30nm, and alternate coatings 10 times.
[0018] The visible light transmittance of the UV protective lens before coating is 91%, the ultraviolet transmittance of wavelengths below 380nm is 5...
Example Embodiment
[0019] Example 2:
[0020] The preparation method of ultraviolet protective lens includes the following steps:
[0021] (1) The glass substrate to be coated is cleaned by ultrasonic to remove stains and dried;
[0022] (2) Place the glass substrate to be coated in the vacuum chamber of the vacuum coating machine, -3 Bombard the glass substrate with an ion gun under Pa vacuum;
[0023] (3) In 2.9×10 -3 Under Pa vacuum degree and glass substrate temperature 310℃, use ion gun to bombard the coating material in turn, and alternately coat zirconium dioxide film and silicon dioxide film from the glass substrate outwards, using the film thickness controller in the vacuum coating machine Control the film thickness of the titanium dioxide film to 15nm, the film thickness of the silicon dioxide film to 35nm, and alternate plating 15 times.
[0024] The visible light transmittance of the UV protective lens before coating is 91%, the ultraviolet transmittance of wavelengths below 380nm is 50%, the...
Example Embodiment
[0025] Example 3:
[0026] The preparation method of ultraviolet protective lens includes the following steps:
[0027] (1) The glass substrate to be coated is cleaned by ultrasonic to remove stains and dried;
[0028] (2) Place the glass substrate to be coated in the vacuum chamber of the vacuum coating machine at 3.1×10 -3 Bombard the glass substrate with an ion gun under Pa vacuum;
[0029] (3) at 3.1×10 -3 Pa vacuum degree and glass substrate temperature 290℃, use ion gun to bombard the coating material in sequence, and alternately coat zirconium dioxide film and magnesium fluoride film from the glass substrate outwards, using the film thickness controller in the vacuum coating machine Control the film thickness of the titanium dioxide film to 25nm and the film thickness of the silicon dioxide film to 40nm, and alternate plating 20 times.
[0030] The visible light transmittance of the UV protective lens before coating is 91%, the ultraviolet transmittance of wavelengths below 380n...
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