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Glass

A technology of glass and phosphate glass, which is applied in the direction of instruments, optics, optical components, etc., and can solve the problems of undisclosed glass forming colored layers, etc.

Pending Publication Date: 2021-12-14
HOYA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Patent Document 1 does not disclose the formation of a colored layer in glass

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0197] Example 1: Formation of colored layers in samples with different glass compositions

Embodiment 1-1

[0199] On one side of the optically polished surface of the glass sample having the glass composition No. 1 in the obtained glass sample, a Pt-Pd film was formed into a pattern by sputtering (the current during sputtering was 15 mA, and the film formation time was 900 seconds). .

[0200] While supplying forming gas (3 vol % hydrogen, 97 vol % nitrogen) as a reducing atmosphere at a flow rate of 0.2 L / min, the glass sample on which the Pt-Pd film was formed was heat-treated at 400° C. for 5 hours.

[0201] The Pt-Pd film was peeled off by polishing to obtain a glass sample with a colored layer. The resulting glass sample is shown in Figure 5-1.

[0202] [Measurement of transmittance]

[0203] The external transmittance at a wavelength of 300 to 2500 nm was measured. The external transmittance is defined as: when the light is incident on the thickness direction of the glass sample, the percentage of the transmitted light intensity relative to the incident light intensity [tr...

Embodiment 1-2

[0208] Except having used the glass sample which has the glass composition of No. 2, it carried out similarly to Example 1-1, and obtained the glass sample which has a colored layer. The resulting glass samples were Figure 5-2 shown.

[0209] The transmittance was measured in the same manner as in Example 1-1, and the results were as follows Figure 6-2 shown.

[0210] Table 2 shows the results of measuring OD in the same manner as in Example 1-1.

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Abstract

The object of the invention is to provide glass having a colored layer. The glass has a colored layer.

Description

technical field [0001] The invention relates to glasses having a colored layer. Background technique [0002] Patent Document 1 discloses an invention of changing the transmittance of glass by heat-treating glass in an oxidizing atmosphere or in a non-oxidizing atmosphere. However, Patent Document 1 does not disclose forming a colored layer in glass. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2002-201041 Contents of the invention [0006] The problem to be solved by the invention [0007] The object of the present invention is to provide glass having a colored layer. [0008] way of solving the problem [0009] The gist of the present invention is as follows. [0010] (1) Glass having a colored layer. [0011] (2) The glass described in (1) above, which has a portion with a low transmittance and a portion with a high transmittance. [0012] (3) The glass described in (1) or (2) above, which con...

Claims

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Application Information

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IPC IPC(8): C03C23/00C03C3/21G02B1/00
CPCC03C3/21G02B1/00G02B5/003C03C4/02C03C3/19C03C21/008C03C17/09C03C23/007C03C2217/254C03C2217/27C03C2218/154C03C2218/328G02B1/12
Inventor 池西干男丹野义刚
Owner HOYA CORP