# US 2013/0239385 A1 · Precision alignment device of an optical component and a method of using the device

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- Number: US 2013/0239385 A1
- Document ID: US20130239385A1
- Status: Published application
- Kind: A1
- Application number: 13/847,017
- Filed: 2013-03-19
- Published: 2013-09-19
- Earliest claimed: 2012-03-19
- Assignees: Korea Astronomy and Space Science Institute
- Applicants: Korea Astronomy and Space Science Institute
- Inventors: Chan PARK
- Web page: https://patentgrep.com/patent/US20130239385A1

## CPC

- G02B 7/003: {Alignment of optical elements (G02B7/001, G02B7/002 take precedence; for mirrors G02B7/1822)}
- Y10T 29/49817: with other than ancillary treating or assembling
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Provided are a precision alignment device of an optical component and a method of using the device. The device includes a location fixing unit inserted and coupled to a pin hole on an optical table, closely attached to an optical mount, and fixes a location of the optical component, and a bumper including a penetration hole formed to allow the location fixing unit to penetrate to be coupled thereto, the bumper having a thickness formed in a lateral direction to maintain a certain distance between the location fixing unit and the optical mount when at least one side is closely attached to the optical mount. A location of the optical mount is determined while coupling the bumper to the location fixing unit.

## Claims

### Claim 1

A precision alignment device of an optical component, the device comprising:
a location fixing unit inserted and coupled to a pin hole on an optical table, closely attached to an optical mount, and fixes a location of the optical component; and
a bumper comprising a penetration hole formed to allow the location fixing unit to penetrate to be coupled thereto, the bumper having a thickness formed in a lateral direction to maintain a certain distance between the location fixing unit and the optical mount when at least one side is closely attached to the optical mount,
wherein a location of the optical mount is determined while coupling the bumper with the location fixing unit.

### Claim 2 (depends on 1)

The device of claim 1, wherein the location fixing unit comprises a non-screw portion where there is not formed a screw thread, and
wherein the bumper is coupled to the non-screw portion and determines the location of the optical mount.

### Claim 3 (depends on 1)

The device of claim 1, wherein the bumper comprises an opening formed on one side thereof from the one side to the penetration hole to allow the location fixing unit to be inserted and coupled thereto.

### Claim 4 (depends on 3)

The device of claim 3, wherein the bumper further comprises a flat portion on the one side formed by extending the opening in a certain direction.

### Claim 5 (depends on 1)

The device of claim 1, wherein the bumper comprises a curved portion formed roundly with a certain curvature on one side.

### Claim 6 (depends on 1)

The device of claim 1, further comprising a washer located between a head portion of the location fixing unit and the bumper, the washer with a penetration hole to allow the location fixing unit to penetrate the same.

### Claim 7 (depends on 1)

A method of precisely aligning an optical component by using the device according to claims 1, the method comprising:
transferring an optical mount to be closely attached to the device inserted and coupled to a pin hole of an optical table to be initially arranged;
separating a bumper having a thickness in a lateral direction, from a location fixing unit; and
coupling another bumper having a thickness different from that of the bumper having a thickness in a lateral direction, to the location fixing unit.