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Wear-resistant impurity-eliminating optical glass element as well as preparation method and application thereof

An optical glass, impurity-removing technology, used in optical components, optics, instruments, etc., can solve the problems of optical glass scratches, limiting the wide application of optical glass, and low wear resistance of optical glass.

Active Publication Date: 2021-06-08
GUOGUANG OPTICAL GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Wear-resistant impurity-eliminating optical glass element as well as preparation method and application thereof
  • Wear-resistant impurity-eliminating optical glass element as well as preparation method and application thereof
  • Wear-resistant impurity-eliminating optical glass element as well as preparation method and application thereof

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preparation example Construction

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

[0042] (1) Formulate glass mixture, prepare optical glass substrates;

[0043] (2) The doped metal ion is introduced into the glass mixture to form a mixed A, cast in the surface of the optical glass substrate, under reduced gas atmosphere, forming a base layer;

[0044] (3) Introduction of the doped metal ion into the glass fitting forming blend B, casting on the base layer surface, under reduced gas atmosphere, forming a transition layer;

[0045] (4) The doped metal ion is introduced into the glass mixture to form a mixing C, cast in the surface of the transition layer, and the reduction treatment is performed under reduced gas atmosphere, forming a functional layer;

[0046] (5) After the surface obtained in step (4), an optical glass having a base layer, a transition layer, and a function layer is sequentially proces...

Embodiment 1

[0056] (1) The glass mixture was prepared according to Table 1, and the borosilicate K9 optical glass substrate was prepared.

[0057] (2) 0.05mol% TIO 2 And 3 mol% SNO 2 The introduction into the glass mixture forming a mixed A, casting in the surface of the optical glass substrate, in H 2 In a temperature of 500 ° C, 10 h, the pressure of the reduction treatment is 5 MPa, forming the base layer, the thickness of the base layer is 0.8 mm;

[0058] (3) 1 mol% of TiO 2 And 3 mol% SNO 2 The introduction into the glass mixture forms a mixed B, casting on the base layer surface, in H 2 The pressure of 20 h in a temperature of 600 ° C, the pressure of the reduction treatment was 5 MPa, forming a transition layer, and the transition layer had a thickness of 0.5 mm;

[0059] (4) 10 mol% of TIO 2 And 3 mol% SNO 2 The introduction into the glass mixture forms a mixed C, cast it on the surface of the transition layer, in H 2 In the temperature of 700 ° C for 30 h, the pressure of the reduct...

Embodiment 2

[0064] (1) The glass mixture was prepared according to Table 1, and the borosilicate K9 optical glass substrate was prepared.

[0065] (2) TIO 0.1 mol% TIO 2 And 5mol% GA 2 O 3 The introduction into the glass mixture forming a mixed A, casting in the surface of the optical glass substrate, in H 2 The pressure of 10 h in a temperature of 550 ° C, the pressure of the reduction treatment is 10 MPa, forming the base layer, the thickness of the base layer is 0.9 mm;

[0066] (3) 5mol% TIO 2 And 5mol% GA 2 O 3 The introduction into the glass mixture forms a mixed B, casting on the base layer surface, in H 2 In a temperature of 650 ° C, 25 h, the pressure of the reduction treatment is 10 MPa, forming a transition layer, and the thickness of the transition layer is 0.5 mm;

[0067] (4) 15mol% TiO 2 And 5mol% GA 2 O 3 The introduction into the glass mixture forms a mixed C, cast it on the surface of the transition layer, in H 2 The temperature reduction of 800 ° C was reduced by 40 h, and ...

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Abstract

The invention belongs to the technical field of optical glass processing, and particularly relates to a wear-resistant impurity-eliminating optical glass element as well as a preparation method and application thereof. The element comprises an optical glass substrate and a composite light absorption layer, the composite light absorption layer is positioned on the surface of the optical glass substrate; the composite light absorption layer sequentially comprises a base layer, a transition layer and a functional layer, and the base layer is connected with the glass substrate; the base layer, the transition layer and the functional layer all contain doped metal ions, and the doped ions comprise titanium ions and any one or more of gallium ions, tin ions or niobium ions; and the molar concentrations of the titanium ions in the base layer, the transition layer and the functional layer are gradually increased in sequence. The wear-resistant impurity-eliminating optical glass element not only can effectively absorb stray light and improve the precision of the optical glass element, but also can obtain excellent wear resistance, so that the optical glass element is applicable to various environments, and the service life of the optical glass element is prolonged.

Description

Technical field [0001] The present invention belongs to the field of optical glass processing, and in particular, the present invention relates to a wear-resistant mixed-shaped optical glass element and a preparation method thereof. Background technique [0002] The information disclosed in the background is only intended to increase the understanding of the overall background of the present invention, and is not necessarily considered to recognize or imply that the information is intended to be a prior art known to those of ordinary skill in the art. [0003] A stray light refers to an optical system that diffuses other non-imaging lights on the surface of the optical device, and the imaging light reached by the abnormal optical path, when the optical system is visible, and the stray light is mainly derived from external radiation, and the system is outside the system. The stray light passes through multiple refractions and scattering of the surface of the optical system and the...

Claims

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Application Information

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Patent Type & Authority Applications(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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