KR20090118457A - Lens alignment system using coherent laser beam - Google Patents
Lens alignment system using coherent laser beam Download PDFInfo
- Publication number
- KR20090118457A KR20090118457A KR1020080044256A KR20080044256A KR20090118457A KR 20090118457 A KR20090118457 A KR 20090118457A KR 1020080044256 A KR1020080044256 A KR 1020080044256A KR 20080044256 A KR20080044256 A KR 20080044256A KR 20090118457 A KR20090118457 A KR 20090118457A
- Authority
- KR
- South Korea
- Prior art keywords
- lens
- alignment
- laser beam
- alignment system
- coherent laser
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/003—Alignment of optical elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/60—Systems using moiré fringes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
Abstract
Description
본 장치는 렌즈 계의 정렬 혹은 렌즈 조심을 위한 장치이다.This device is for the alignment of the lens system or the lens care.
렌즈 계의 정렬이 렌즈 계의 성능과 밀접하게 관계되므로 렌즈 계의 정렬이 매우 중요하다. 렌즈계의 편심이 최소화 되도록 정렬하는 과정을 렌즈의 조심이라고 한다.The alignment of the lens system is very important because the alignment of the lens system is closely related to the performance of the lens system. The process of aligning the lens system so as to minimize eccentricity is called caution of the lens.
기존에 렌즈 계을 정렬하는 방법으로는 렌즈의 상면에서 렌즈가 형성하는 상을 관찰하여 상이 고르게 나오도록 하거나, 2매의 렌즈 각면에서 레이저를 반사시켜 정렬하는 방법, 그리고 렌즈 계을 돌리면서 렌즈 계의 투과 편심을 측정하는 방법등이 사용되어 왔다. 그러나 이들 방법은 시간이 많이 소요되거나 렌즈의 매수가 많아지면 사용할 수 없다.Conventionally, the method of aligning the lens system includes observing the image formed by the lens on the upper surface of the lens so that the image appears evenly, or reflecting and aligning the laser from each of the two lens surfaces, and transmitting the lens system by rotating the lens system. Methods of measuring eccentricity have been used. However, these methods cannot be used if they are time consuming or the number of lenses is large.
가간섭성 레이저 빔을 렌즈 1과 렌즈 2 로 평행 레이저 빔으로 만든 다음 정렬하고자 하는 렌즈군에 입사한다. 렌즈군의 각 렌즈 면에서 반사된 레이저 빔의 반사에 의한 간섭무늬를 대물렌즈와 이미지 센서를 이용하여 렌즈의 정렬상태를 측정한다. 정렬하고자 하는 렌즈를 움직여 간섭 무늬를 보고 렌즈의 정렬상태를 파악한다.The coherent laser beam is made into a parallel laser beam with lens 1 and lens 2 and then enters the lens group to be aligned. The interference pattern caused by the reflection of the laser beam reflected from each lens surface of the lens group is measured by using an objective lens and an image sensor. Move the lens you want to align to see the interference fringes to determine the alignment of the lens.
방법에 비하여 짧은 시간에 정렬이 가능하고 렌즈의 매수에도 제한을 받지 않는다.Compared to the method can be aligned in a short time and the number of lenses is not limited.
간섭 무늬를 보고 렌즈의 정렬 상태를 바로 판단하므로 렌즈 정렬시간이 짧고 렌즈의 매수에 관계없이 간섭무늬를 볼 수 있으므로 렌즈의 매수에 제한을 받지않는다.The alignment of the lens is immediately determined by looking at the interference fringe, so the lens alignment time is short and the interference fringe can be viewed regardless of the number of lenses, so the number of lenses is not limited.
핸드폰 렌즈 및 디지털 카메라 렌즈등 렌즈의 조심장치에 사용할 수 있다.It can be used for lens care devices such as mobile phone lens and digital camera lens.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020080044256A KR20090118457A (en) | 2008-05-14 | 2008-05-14 | Lens alignment system using coherent laser beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020080044256A KR20090118457A (en) | 2008-05-14 | 2008-05-14 | Lens alignment system using coherent laser beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20090118457A true KR20090118457A (en) | 2009-11-18 |
Family
ID=41602414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020080044256A KR20090118457A (en) | 2008-05-14 | 2008-05-14 | Lens alignment system using coherent laser beam |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20090118457A (en) |
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2008
- 2008-05-14 KR KR1020080044256A patent/KR20090118457A/en not_active Application Discontinuation
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| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application |