Method for integrally bonding a glass element to a support element, and optical device

Patent metadata

Field	Value
Publication number	US-12338183-B2
Application number	US-202218577543-A
Country	US
Kind code	B2
Filing date	Jul 4, 2022
Priority date	Jul 8, 2021
Publication date	Jun 24, 2025
Grant date	Jun 24, 2025

Abstract

A method of integrally bonding a glass element to a support element, the method comprising a step of inserting at least one contact element into a contact recess in a surface of the support element. In addition, the method comprises a step of placing the glass element on a portion of the contact element which portion protrudes beyond the surface, and a step of locally heating the contact element in order to connect the glass element to the carrier element via the contact element. The method also comprises a step of coating at least a part of the contact recess with a separating layer prior to the step of insertion.

First claim

The invention claimed is:

1. A method of integrally bonding a glass element to a carrier element, the method comprising:
inserting at least one contact element into a contact recess in a surface of the carrier element;
heating the at least one contact element to connect the at least one contact element to the carrier element, wherein the step of heating is performed after the step of insertion, and wherein in the step of heating a portion of the at least one contact element protruding above the surface is widened as a collar and/or formed as a rounded cap protruding in the direction of the glass plate normal;
placing the glass element on a portion of the at least one contact element protruding above the surface;
local heating of the at least one contact element in order to connect the glass element to the carrier element via the at least one contact element; and
coating at least a part of the contact recess with a separating layer prior to the step of insertion.

2. The method according to claim 1 , comprising a step of molding the contact recess prior to the step of insertion.

3. The method according to claim 1 , wherein the separating layer is made from silicon (Si) or germanium (Ge) or a refractory metal or an oxide of the silicon (Si) or the germanium (Ge) or the refractory metal or a refractory metal silicide.

4. The method according to claim 1 , comprising a step of reducing a thickness of the portion of the contact element prior to the step of placing for leveling a surface of the portion of the contact element.

5. The method according to claim 1 , wherein in the step of insertion, the at least one contact element is inserted using a reactive welding process.

6. The method according to claim 1 , wherein in the step of locally heating the at least one contact element is heated using a laser beam.

7. The method according to claim 1 , wherein in the step of inserting the at least one contact element is shaped cylindrical or spherical or partially spherical or ellipsoidal or toroidal.

8. The method according to claim 1 , wherein in the step of local heating, the glass element and the carrier element are joined to produce an optical device.

9. The method according to claim 1 , comprising a step of providing the carrier element in the form of a ceramic element and/or the glass element in the form of an ultra low expansion glass and/or the at least one contact element in the form of a borosilicate glass element.

10. The method according to claim 1 , wherein in the step of insertion, a plurality of contact elements are inserted into a plurality of contact recesses in the surface of the carrier element, wherein the plurality of contact recesses are arranged on a line.

11. The method according to claim 1 , wherein in the step of local heating, a pressing force is exerted on the glass element to press the glass element against the at least one contact element.

12. The method according to claim 1 , wherein the at least one contact element comprises at least one glass dowel.

13. A method of integrally bonding a glass element to a carrier element, the method comprising:
inserting at least one contact element into a contact recess in a surface of the carrier element, wherein the at least one contact element comprises at least one glass dowel;
heating the at least one contact element to connect the at least one contact element to the carrier element;
reducing a thickness of a portion of the at least one contact element protruding above the surface of the carrier element for leveling a surface of the portion;
placing the glass element on the portion of the at least one contact element above the surface of the reduced portion;
local heating of the at least one contact element in order to connect the glass element to the carrier element via the at least one contact element; and
coating at least a part of the contact recess with a separating layer prior to the step of insertion.

14. A method of integrally bonding a glass element to a carrier element, the method comprising:
inserting at least one contact element into a contact recess in a surface of the carrier element, wherein the at least one contact element comprises at least one glass dowel;
heating the at least one contact element using a reactive welding process to connect the at least one contact element to the carrier element;
placing the glass element on a portion of the at least one contact element protruding above the surface;
local heating of the at least one contact element in order to connect the glass element to the carrier element via the at least one contact element; and
coating at least a part of the contact recess with a separating layer prior to the step of insertion.

Assignees

• Jenoptik Optical Sys Gmbh

Inventors

• Hergenhan Guido
• Taubert Jochen

Classifications

• G01B11/03

  by measuring coordinates of points · CPC title

• C04B2237/68

  Forming laminates or joining articles wherein at least one substrate contains at least two different parts of macro-size, e.g. one ceramic substrate layer containing an embedded conductor or electrode · CPC title

• C03C27/00

  Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing (C03C17/00 takes precedence; layered structures comprising at least one glass sheet B32B17/00; wired glass C03B; joining glass to ceramics C04) · CPC title

• C03C3/14

  containing boron · CPC title

• C03B23/20 Primary

  Uniting glass pieces by fusing without substantial reshaping · CPC title