KR940007377Y1 - Refelex photo removing apparatus for photo-cable - Google Patents
Refelex photo removing apparatus for photo-cable Download PDFInfo
- Publication number
- KR940007377Y1 KR940007377Y1 KR2019900008360U KR900008360U KR940007377Y1 KR 940007377 Y1 KR940007377 Y1 KR 940007377Y1 KR 2019900008360 U KR2019900008360 U KR 2019900008360U KR 900008360 U KR900008360 U KR 900008360U KR 940007377 Y1 KR940007377 Y1 KR 940007377Y1
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- South Korea
- Prior art keywords
- photo
- light
- side wall
- optical fiber
- barrel
- Prior art date
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
- G01M11/33—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0242—Testing optical properties by measuring geometrical properties or aberrations
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안의 작용상태를 나타낸 단면도.1 is a cross-sectional view showing an operating state of the present invention.
제2도는 종래의 측정기의 구조도.2 is a structural diagram of a conventional measuring instrument.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
2 : 콘덴서렌즈 5': 경사측벽2: condenser lens 5 ': inclined side wall
8 : 경통 10 : 입사제한용 슬릿8: barrel 10: slit for entrance restriction
본 고안은 광섬유 기하구조 측정기의 반사광 제거장치에 관한 것으로서, 측정기의 구조를 개선하여 비디오카메라 또는 광검출기 내부로 불필요한 반사광이 입사되는 것을 방지함으로써, 광섬유의 클래딩을 보다 정밀하게 측정할수 있게 하기 위한 것이다.The present invention relates to a reflection light removing device of an optical fiber geometry measuring device, and to improve the structure of the measuring device to prevent unnecessary reflection of incident light into the video camera or photodetector, thereby enabling the cladding of the optical fiber to be measured more precisely. .
일반적으로 광섬유의 기하구조를 측정함에 있어서는, 클래딩 측정을 위해서 제2도에 도시한 바와같이, 측정기(1)의 콘덴서렌즈(2)를 통하여 빛을 피측정 광섬유(4)로 입사시키게 되는데, 이때 입사광은 2가지 유형으로 반사되어 클래딩의 측정에 불필요한 반사광으로 작용하게 된다.In general, in measuring the geometry of the optical fiber, as shown in FIG. 2 for the cladding measurement, light is incident on the optical fiber 4 to be measured through the condenser lens 2 of the measuring device 1. Incident light is reflected in two types and acts as reflected light which is unnecessary for the measurement of the cladding.
제1유형은 입사광이 하프미러(3)를 투과하여 경통(8)의 측벽(5)에서 반사되어 다시 하프미러(3)를 거쳐 비디오카메라(6)로 진행되는 반사광이고, 제2유형은 입사광이 하프미러(3)에서 꺽여 대물렌즈(7)에서 반사된후 하프미러(3)를 투과하여 비디오카메라(6)로 진행되는 반사광이다.The first type is the reflected light passing through the half mirror 3, reflected from the side wall 5 of the barrel 8, and then traveling through the half mirror 3 to the video camera 6, and the second type is incident light. It is the reflected light that is bent by the half mirror 3 and reflected by the objective lens 7, passes through the half mirror 3, and proceeds to the video camera 6.
본 고안은 이들 불필요한 제1, 2유형의 반사광을 모두 제거함으로 광섬유의 클래딩 측정을 보다 정밀하게 할수 있게 한 것으로서, 본 고안은 이를 위하여 제1유형의 반사광제거를 위해서는 경통의 측벽을 소정의 각도로 경사지게 장착함으로써, 경통측면에서 반사된 반사광이 비디오카메라로 진행되지 못하게 하고, 제2유형의 반사광에 대해서는, 출사단 콘덴서렌즈 사이에 입사제한용 슬릿을 장착하여 입사광의 입사범위를 제한, 대물렌즈의 유효구경과 일치시킴으로써, 여분의 반사광이 발생되지 못하도록한 것이다.The present invention allows the cladding measurement of the optical fiber to be more precise by removing all of the unnecessary first and second types of reflected light, and the present invention allows the sidewall of the barrel at a predetermined angle to remove the reflected light of the first type. The oblique mounting prevents the reflected light reflected from the barrel side from traveling to the video camera. For the reflected light of the second type, an incidence limiting slit is mounted between the output condenser lenses to limit the incident range of the incident light. By coinciding with the effective diameter, extra reflected light is prevented from occurring.
이하 본 고안을 첨부도면을 참조하며 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
측정기(1)의 경통(8)내부에 콘덴서렌즈(2)와 하프미러(3) 및 측벽(5)을 구비하여서 된 광섬유 기하구조 측정기에 있어서, 상기 측벽(5)을 경통(8)에 대하여 소정의 각도(a)로 경사진 경사측벽(5′)으로 형성하고, 상기 콘덴서렌즈(2)의 전방에 입사제한용 슬릿(10)을 장착하여서 된 것이다. 미설명부호 11은 클래딩조명용 광원, 12는 코어조명용 램프이다.In the optical fiber geometry measuring device having the condenser lens 2, the half mirror 3, and the side wall 5 inside the barrel 8 of the measuring device 1, the side wall 5 is connected to the barrel 8. It is formed by the inclined side wall 5 'which is inclined at a predetermined angle a, and the entrance limiting slit 10 is mounted in front of the condenser lens 2. Reference numeral 11 denotes a cladding light source, and 12 denotes a core lighting lamp.
이와같이 구성된 본 고안의 광섬유 기하구조 측정기의 반사광 제거장치는, 제1도에 도시된 바와같이, 클래딩 조명용 광원(11)에서 입사된 입사광이 하프미러(3)를 투과하면, 투과된 빛은 경통(8)의 측벽(5)의 경사면에서 반사방향이 변경되어 반사되게 되므로 비디오카메라(6)로 반사광이 입사되는 일이 없게되고, 또한 콘덴서렌즈(2)의 전면에 입사제한용 슬릿(10)이 설치되어 있음으로써 입사광이 입사범위가 대물렌즈(7)의 유효구경과 일치하게 되어 불필요한 입사광이 입사되는 폐단을 방지하게 된다.As shown in FIG. 1, when the incident light incident from the light source 11 for cladding illumination passes through the half mirror 3, the transmitted light passes through a barrel (as shown in FIG. 1). Since the reflection direction is changed and reflected on the inclined surface of the side wall 5 of 8), the reflected light is not incident on the video camera 6, and the entrance limiting slit 10 is formed on the front surface of the condenser lens 2. By providing the incident light, the incident range of the incident light coincides with the effective diameter of the objective lens 7, thereby preventing the closed end from which unnecessary incident light is incident.
이와같이 본 고안의 반사광 제거장치는 측정기의 구조를 간단히 개선함으로써, 불필요한 반사광이 비디오카메라에 입사되는 것을 방지하여 광섬유의 측정정밀도를 향상시킬수 있는 효과가 있다.As described above, the reflection light removing device of the present invention has an effect of improving the measurement accuracy of the optical fiber by preventing unnecessary reflection of incident light to the video camera by simply improving the structure of the measuring device.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019900008360U KR940007377Y1 (en) | 1990-06-14 | 1990-06-14 | Refelex photo removing apparatus for photo-cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019900008360U KR940007377Y1 (en) | 1990-06-14 | 1990-06-14 | Refelex photo removing apparatus for photo-cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR920001163U KR920001163U (en) | 1992-01-28 |
| KR940007377Y1 true KR940007377Y1 (en) | 1994-10-19 |
Family
ID=19299862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019900008360U KR940007377Y1 (en) | 1990-06-14 | 1990-06-14 | Refelex photo removing apparatus for photo-cable |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR940007377Y1 (en) |
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1990
- 1990-06-14 KR KR2019900008360U patent/KR940007377Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR920001163U (en) | 1992-01-28 |
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