A wear-resistant and miscellaneous optical glass element and its preparation method and application

An optical glass, impurity-removing technology, applied in optical components, optics, instruments, etc., can solve the problems of limiting the wide application of optical glass, low wear resistance of optical glass, scratches of optical glass, etc., to improve wear resistance, The effect of enhancing strength and enriching the use environment

Active Publication Date: 2022-04-01
GUOGUANG OPTICAL GLASS CO LTD
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Problems solved by technology

[0006] In order to solve the problems in the above-mentioned coating optical absorption layer technology, the prior art discloses a method of directly doping metal ions in optical glass raw materials, and constructing a stray light absorption layer on the surface of optical glass by means of in-situ reduction , the interface reflectance between the light absorbing layer and the optical glass substrate obtained by this method is less than 1%, which can prevent the generation of interface reflection, and there is no phenomenon of falling off after being heated or receiving external force, effectively avoiding the coating film However, the inventors have found that this method does not solve the problem of low wear resistance of optical glass, which makes optical glass still prone to scratches during use, which affects its accuracy and limits the use of optical glass in optical devices. wide application of

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  • A wear-resistant and miscellaneous optical glass element and its preparation method and application
  • A wear-resistant and miscellaneous optical glass element and its preparation method and application
  • A wear-resistant and miscellaneous optical glass element and its preparation method and application

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preparation example Construction

[0041] The second aspect of the present invention provides a method for preparing the above-mentioned wear-resistant and miscellaneous optical glass element, and the specific steps include:

[0042] (1) prepare glass compound, prepare optical glass matrix;

[0043] (2) introducing doped metal ions into the glass batch to form a mixture A, pouring it on the surface of the optical glass substrate, and performing a reduction treatment under a reducing gas atmosphere to form a base layer;

[0044] (3) introducing doped metal ions into the glass batch to form a mixture B, pouring it on the surface of the base layer, and performing a reduction treatment under a reducing gas atmosphere to form a transition layer;

[0045] (4) introducing doped metal ions into the glass batch to form a mixture C, pouring it on the surface of the transition layer, and performing a reduction treatment under a reducing gas atmosphere to form a functional layer;

[0046] (5) Post-processing the optical g...

Embodiment 1

[0056] (1) Prepare glass compound according to Table 1, prepare borosilicate K9 optical glass matrix;

[0057] (2) 0.05mol% TiO 2 and 3mol% SnO 2 Introduced into the glass batch to form a mixture A, poured on the surface of the optical glass substrate, in the H 2 Reduction at a temperature of 500°C for 10 hours, the pressure of the reduction treatment is 5MPa, and the base layer is formed, and the thickness of the base layer is 0.8mm;

[0058] (3) 1mol% TiO 2 and 3mol% SnO 2 Introduced into the glass batch to form the mixture B, poured on the surface of the base layer, in the H 2 Reduction at a temperature of 600°C for 20 hours, the pressure of the reduction treatment is 5MPa, and a transition layer is formed, and the thickness of the transition layer is 0.5mm;

[0059] (4) 10mol% TiO 2 and 3mol% SnO 2 Introduced into the glass batch to form a mixture C, poured on the surface of the transition layer, in the H 2 Reduction at a temperature of 700°C for 30 hours, the pres...

Embodiment 2

[0064] (1) Prepare glass compound according to Table 1, prepare borosilicate K9 optical glass matrix;

[0065] (2) 0.1mol% TiO 2 and 5mol% Ga 2 o 3 Introduced into the glass batch to form a mixture A, poured on the surface of the optical glass substrate, in the H 2 Reduction at a temperature of 550°C for 10 hours, the pressure of the reduction treatment is 10MPa, and the base layer is formed, and the thickness of the base layer is 0.9mm;

[0066] (3) 5mol% TiO 2 and 5mol% Ga 2 o 3 Introduced into the glass batch to form the mixture B, poured on the surface of the base layer, in the H 2 Reduction at a temperature of 650°C for 25 hours, the pressure of the reduction treatment is 10MPa, and a transition layer is formed, and the thickness of the transition layer is 0.5mm;

[0067] (4) 15mol% TiO 2 and 5mol% Ga 2 o 3 Introduced into the glass batch to form a mixture C, poured on the surface of the transition layer, in the H 2 Reduction at a temperature of 800°C for 40 ho...

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Abstract

The invention belongs to the technical field of optical glass processing, and in particular relates to a wear-resistant and impurity-removing optical glass element, a preparation method and application thereof. The element includes an optical glass base and a composite light-absorbing layer; the composite light-absorbing layer is located on the surface of the optical glass base; the composite light-absorbing layer includes a base layer, a transition layer and a functional layer in sequence, and the base layer is in phase with the glass base connected; the base layer, the transition layer and the functional layer all contain doped metal ions, and the doped ions include titanium ions, and any one or more of gallium ions, tin ions or niobium ions; The molar concentration in the layer, transition layer and functional layer increases sequentially. The wear-resistant and impurity-removing optical glass element can not only effectively absorb stray light, improve the precision of the optical glass element, but also enable the optical glass element to obtain excellent wear resistance, so that it is suitable for applications in various environments and prolongs the life of the optical glass element. Service life of optical glass components.

Description

technical field [0001] The invention belongs to the technical field of optical glass processing, and in particular relates to a wear-resistant and impurity-removing optical glass element, a preparation method and application thereof. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Stray light refers to the non-imaging light that diffuses to the surface of the optical device and the imaging light that arrives through the abnormal optical path in addition to the imaging light in the optical system. When the optical system is visible light, the stray light mainly comes from external radiation. The stray light reaches the image plane through multiple refraction and scattering...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/089C03C17/02G02B1/10G02B1/14
CPCC03C3/089C03C17/02G02B1/10G02B1/14
Inventor 沈杰
Owner GUOGUANG OPTICAL GLASS CO LTD
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