Visible light and near infrared light two-waveband antireflection film glass and manufacturing method thereof
A technology of near-infrared light and anti-reflection coating, applied in the field of manufacturing of visible light and near-infrared dual-band anti-reflection coating glass, visible light and near-infrared dual-band anti-reflection coating glass, which can solve human eye damage and the impact of weather visibility Large size, poor ability to penetrate smoke and dust, etc., to achieve the effect of ensuring human eye safety
Active Publication Date: 2015-01-28
ZHONGSHAN GUANGWEI OPTOELECTRONICS TECH
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[0002] At present, domestic military optoelectronic instruments generally use a laser rangefinder with a wavelength of 1.064um. Because the laser pulse energy is relatively large, the human eye is sensitive to this wavelength, so it has a certain impact on the operator's eye safety, and it is easy to cause damage to the human eye. In addition, light in the 1.064um band has poor ability to penetrate smoke and dust in atmospheric transmission, and the echo rate is low. The maximum measurement range is greatly affected by weather visibility.
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[0034] A dual-band anti-reflection film glass for visible light and near-infrared light, including a glass substrate 1, on the composite surface of the glass substrate 1, seven film layers are sequentially and adjacently compounded from the inside to the outside, of which the first One film layer, the innermost layer is Al 2 o 3 Layer 21, the second layer is ZrO 2 Layer 22, the third layer is Al 2 o 3 Layer 23, the fourth layer is ZrO 2 Layer 24, the fifth layer is Al 2 o 3 Layer 25, the sixth layer is ZrO 2 Layer 26, the outermost layer is MgF 2 Layer 27.
[0035] The layer 21Al of the first film layer 2 o 3 , that is, the aluminum oxide layer, which improves the adhesion of the film layer, has a thickness of 140-160 nm, preferably 150 nm.
[0036] The ZrO of the second film layer 2 Layer 22, ZrO 2 That is, zirconium dioxide, zirconium dioxide coating can effectively reduce the reflectivity of the surface of the crystalline silicon wafer and increase the transmit...
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Abstract
The invention discloses a visible light and near infrared light two-waveband antireflection film glass. The glass comprises a glass substrate, and seven film layers are orderly and adjacently compounded on a compound surface of the glass substrate from inside to outside. The glass is characterized in that first film layer, namely the innermost layer, is an Al2O3 layer, the second layer is a ZrO2 layer, the third layer is an Al2O3 layer, the fourth layer is a ZrO2 layer, the fifth layer is an Al2O3 layer, the sixth layer is a ZrO2 layer, and the outermost layer is an MgF2 layer. The invention aims at overcoming the defects in the prior art, and provides a visible light and near infrared light two-waveband antireflection film glass which is high in visible light and near-infrared light transmittance, and capable of guaranteeing the safety of human eyes. The invention further provides a manufacturing method of the visible light and near infrared light two-waveband antireflection film glass.
Description
【Technical field】 [0001] The invention relates to a coated glass, more specifically to a dual-band anti-reflection coating glass for visible light and near-infrared light. The invention also relates to a method for manufacturing glass with double-band anti-reflection coating for visible light and near-infrared light. 【Background technique】 [0002] At present, domestic military optoelectronic instruments generally use a laser rangefinder with a wavelength of 1.064um. Because the laser pulse energy is relatively large, the human eye is sensitive to this wavelength, so it has a certain impact on the operator's eye safety, and it is easy to cause damage to the human eye. In addition, light in the 1.064um band has poor ability to penetrate smoke and dust in atmospheric transmission, and the echo rate is low. The maximum measurement range is greatly affected by weather visibility. The damage threshold of the 1.54um wavelength laser to the human eye is 200,000 times higher than t...
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IPC IPC(8): B32B9/04C03C17/34
CPCB32B9/04C03C17/3429
Inventor 杨永华王玲秦文锋
Owner ZHONGSHAN GUANGWEI OPTOELECTRONICS TECH