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US 2024/0409457 A1Published application
Method for manufacturing transparent member, transparent member, and window component for optical element
AssigneeNippon Electric Glass Co., Ltd.
InventorHiroki FUJITA
Life of this patent
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Abstract
Provided is a method for manufacturing a transparent member that can increase the number of transparent members obtained from a transparent substrate as a base material. A method for manufacturing a transparent member includes: a first step of forming a plurality of through holes 3 in a transparent substrate 2; and a second step of separating the transparent substrate 2 along an imaginary line X1, Y1 connecting centers of the plurality of through holes 3, thus obtaining a transparent member.
Claims15
1:
- A method for manufacturing a transparent member, the method comprising:
- a first step of forming a plurality of through holes in a transparent substrate;
- and
- a second step of separating the transparent substrate along an imaginary line connecting centers of the plurality of through holes, thus obtaining a transparent member.
1 more element
2:
- The method for manufacturing a transparent member according to claim 1, wherein
- a planar shape of the through holes is a polygon, and
- the transparent substrate is separated along an imaginary line connecting vertices of the polygons of the plurality of through holes.
3:
- The method for manufacturing a transparent member according to claim 1, wherein the first step comprises the steps of:
- irradiating points on the transparent substrate where the through holes are to be formed with laser light to provide modified portions;
- and
- etching the transparent substrate at the points where the through holes are to be formed and the modified portions are provided, thus forming the through holes.
1 more element
4:
- The method for manufacturing a transparent member according to claim 1, wherein the separating of the transparent substrate in the second step is performed by dicing.
5:
- The method for manufacturing a transparent member according to claim 1, wherein after the first step and before the second step, a film is formed on at least one of principal surfaces located on both sides of the transparent substrate.
6:
- The method for manufacturing a transparent member according to claim 5, wherein
- the film is a metalized film provided in the shape of a frame to meet the transparent member after the second step, and
- the metalized film is formed to have a width γ of corners of the frame equal to or larger than a width α of sides of the frame.
7:
- The method for manufacturing a transparent member according to claim 1, wherein after the first step and before the second step, the transparent substrate is etched along the imaginary line connecting the centers of the through holes to form a groove.
8:
- A transparent member having:
- a first principal surface and a second principal surface opposed to each other and a lateral surface connecting the first principal surface and the second principal surface;
- and having a plurality of corners and a plurality of sides in plan view, wherein
- a portion of the lateral surface located at least one of the plurality of corners is an etched surface, and
- a portion of the lateral surface located at least one of the plurality of sides is a diced surface.
2 more elements
9:
- The transparent member according to claim 8, wherein a maximum profile valley depth Rv of the etched surface measured in conformity with JIS B 0601:2013 is smaller than a maximum profile valley depth Rv of the diced surface measured in conformity with JIS B 0601:2013.
10:
- The transparent member according to claim 8, wherein a maximum profile valley depth Rv of the etched surface measured in conformity with JIS B 0601:2013 is not less than 0.100 μm and not more than 1.100 μm.
11:
- The transparent member according to claim 8, wherein at least one of the plurality of corners has a chamfered shape.
12:
- The transparent member according to claim 8, wherein at least one of the plurality of sides has a light-chamfered shape.
13:
- The transparent member according to claim 8, wherein
- a metalized film is provided on at least one of the first principal surface and the second principal surface, and
- the metalized film has a width γ of the corners equal to or larger than a width α of the sides.
14:
- The transparent member according to claim 8, wherein an antireflection film is provided on at least one of the first principal surface and the second principal surface.
15:
- A window component for an optical element, the window component comprising the transparent member according to claim 8.