CN102997869A - Optical fiber end face verticality tester and testing method - Google Patents
Optical fiber end face verticality tester and testing method Download PDFInfo
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- CN102997869A CN102997869A CN201210565446XA CN201210565446A CN102997869A CN 102997869 A CN102997869 A CN 102997869A CN 201210565446X A CN201210565446X A CN 201210565446XA CN 201210565446 A CN201210565446 A CN 201210565446A CN 102997869 A CN102997869 A CN 102997869A
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- eyepiece
- object lens
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Abstract
The invention provides an optical fiber end face verticality tester which is capable of quickly detecting optical fiber end face verticality and accurate and reliable in detection result. The optical fiber end face verticality tester comprises a frame and a light source system, an objective lens, an ocular lens and a reflection prism which are arranged on the frame. The tester further comprises an optical fiber seat used for placing an optical fiber to be tested, and the optical fiber is located on one side of the objective lens and is coaxial with the optical axis of the objective lens. Light emitted by the light source system passes through the reflection prism, enters the objective lens along the optical axis of the objective lens, is reflected by the end face of the optical fiber, passes through the objective lens and the reflection prism again and enters the ocular lens. When the optical fiber end face verticality tester is used, users can judge the optical fiber end face verticality according to the deviation degree of the optical fiber end face image seen from the ocular lens from the optical axis of the ocular lens.
Description
Technical field
Present technique relates to equipment and the method that the vertical extent to fiber end face and shaft axis of optic fibre checks.
Background technology
Optical Fiber Market is in the fast-developing stage at present.Because optical fiber is not endless, so in the optical fiber use procedure, must realize the fused fiber splice problem.How improving the fused fiber splice quality is one of present each fiber products production unit important topic.And the verticality (vertical extent of fiber end face and shaft axis of optic fibre) of the cutting end face before the fused fiber splice is one of key factor that affects the fused fiber splice quality.
At present before the fused fiber splice to the detection of fiber end face verticality without good detection means, substantially be in the workman and shear rear direct welding, the welding poor quality then deducts weld, more again welding is until the welding quality meets the requirements.If can realize the detection to the fiber end face verticality, then can greatly improve the fused fiber splice qualification rate, reduce production costs, enhance productivity.
Summary of the invention
The purpose of present technique provide a kind of can be to fiber end face verticality fast detecting, testing result fiber end face perpendicularity checking instrument accurately and reliably.
This fiber end face perpendicularity checking instrument comprises frame, is arranged on light-source system, object lens, eyepiece, saturating anti-prism on the frame, and it also comprises be used to the fiber bench that detected optical fiber is set, optical fiber be positioned at object lens one side and with the light shaft coaxle of object lens; The light that light-source system sends enters object lens along the objective lens optical axis direction behind saturating anti-prism, the light that sees through object lens enters eyepiece after again seeing through object lens, saturating anti-prism after by the end face reflection of optical fiber.
The beneficial effect of present technique: present technique lens imaging method is observed the end face of optical fiber.Specifically, if the end face of optical fiber is vertical with optical axis, again through entering eyepiece behind object lens, the saturating anti-prism, the center of the fiber end face picture that eyepiece is seen will be on the optical axis of eyepiece (and can not depart from) by the light behind the end face reflection of optical fiber.If the end face of optical fiber and optical axis out of plumb, again through entering eyepiece behind object lens, the saturating anti-prism, the optical axis of eyepiece will be departed from the center of the fiber end face picture that eyepiece is seen by the light behind the end face reflection of optical fiber.And if fiber end face and optical axis off plumb degree are larger, the degree of the misalignment eyepiece optical axis of fiber end face picture is larger, therefore, can judge the fiber end face verticality from the degree of eyepiece optical axis according to the fiber end face kine bias that eyepiece is seen.Present technique adopts the intuitively method judgement fiber end face verticality of visible image, and equipment is simple, and method is reliable, and the result is accurate.
Above-mentioned fiber end face perpendicularity checking instrument, the optical axis of object lens and the optical axis of eyepiece are on same straight line, and saturating anti-prism is between object lens and eyepiece.
Above-mentioned fiber end face perpendicularity checking instrument, saturating anti-prism is arranged on the frame movably along the optical axis of object lens.Position by the optical axis along object lens moves anti-prism can conveniently be adjusted to image quality.
Above-mentioned fiber end face perpendicularity checking instrument, the described frame side of comprising body seat, eyepiece mount and the lens drum that is provided with object lens are threaded connection respectively the relative both sides at square body seat, in the saturating anti-prism side of the being arranged on body seat; The other end of lens drum arranges fiber bench; The light source base that is provided with light source is threaded connection on square body seat.Like this, each parts organically connects into an integral body, is convenient for carrying, and can hand operation, and on-the-spot use is more quick, and practicality is stronger.
Above-mentioned fiber end face perpendicularity checking instrument, described light source are the LED lamp that sends green glow.Eyes are all relatively more responsive to optical fiber, and green is the color of the most comfortable concerning eyes.Adopting green glow, also is in order not increase the fatigue strength of eyes, to protect eyes as far as possible.
In order to judge more easily the fiber end face kine bias from the degree of eyepiece optical axis, above-mentioned fiber end face perpendicularity checking instrument, it also comprise be arranged on eyepiece before, with the cross-graduation plate of eyepiece light shaft coaxle.Can judge the fiber end face verticality from the degree at cross-graduation plate center according to the fiber end face kine bias that eyepiece is seen like this, more directly perceived.
Present technique provide simultaneously a kind of can be to fiber end face verticality fast detecting, testing result fiber end face verticality inspection method accurately and reliably.
This fiber end face verticality inspection method adopts by frame, is arranged on light-source system, object lens, eyepiece, saturating anti-prism on the frame, is used for the checkout facility that the fiber bench of fixing detected optical fiber forms; Optical fiber be positioned at object lens one side and with the light shaft coaxle of object lens; The light that light-source system sends enters object lens along the objective lens optical axis direction behind saturating anti-prism, the light that sees through object lens enters eyepiece after again seeing through object lens, saturating anti-prism after by the end face reflection of optical fiber; Judge the fiber end face verticality according to the fiber end face kine bias that eyepiece is seen from the degree of eyepiece optical axis.
Above-mentioned fiber end face verticality inspection method, checkout facility also comprise be arranged on eyepiece before, with the cross-graduation plate of eyepiece light shaft coaxle; Judge the fiber end face verticality according to the fiber end face kine bias that eyepiece is seen from the degree at cross-graduation plate center.
Description of drawings
Fig. 1 is the structural drawing of fiber end face perpendicularity checking instrument.
Fig. 2 is the light path principle figure (when fiber end face is vertical) of fiber end face perpendicularity checking instrument.
Fig. 3 is the light path principle figure (when fiber end face tilts) of fiber end face perpendicularity checking instrument.
Embodiment
Referring to fiber end face perpendicularity checking instrument shown in Figure 1, the side's of comprising body seat 1, eyepiece mount 2 and the lens drum 4 that is provided with object lens 3 are threaded connection respectively the relative both sides at square body seat.Eyepiece 11 is arranged on the eyepiece mount.The optical axis of object lens and the optical axis of eyepiece are on same straight line.Saturating anti-prism 5 is along the optical axis of object lens movably (saturating anti-prism 5 belongs to prior art in the side's of being arranged on body seat movably along the optical axis of object lens) in the side's of being arranged on body seat.The other end of lens drum 4 arranges fiber bench 6; Detected optical fiber 7 passes the center pit on the fiber bench.Optical fiber 7 be positioned at object lens one side and with the light shaft coaxle of object lens.Be provided with the cross-graduation plate 10 with the eyepiece light shaft coaxle in the eyepiece mount 2 before eyepiece.
The light source base 9 that is provided with the LED lamp 8 that can send green glow is threaded connection on square body seat 1.The axis of light source base 9 is vertical with the optical axis of object lens.
The light that LED lamp 8 sends enters object lens along the objective lens optical axis direction behind saturating anti-prism 5, the light that sees through object lens enters eyepiece after again seeing through object lens, saturating anti-prism after by the end face reflection of optical fiber.Can see the fiber end face picture by eyepiece.Referring to Fig. 2, if the end face 71 of optical fiber 7 is vertical with optical axis, enter eyepiece 11 after again being seen through object lens 3, saturating anti-prism 5 by the light behind the end face reflection of optical fiber, the center of the fiber end face picture of seeing by eyepiece will be at the center of cross-graduation plate 10.Referring to Fig. 3, if the end face of optical fiber 71 and optical axis out of plumb, the center at cross-graduation plate 10 will be departed from the center of the fiber end face picture of seeing by eyepiece.
Consider on-the-spot practicality and the convenience of using, this technology provides a kind of portable, hand-held fiber end face perpendicularity checking instrument, is used for the detection of fiber cut rear end face verticality.During use, only need optical fiber is put into fiber bench, observe side-play amount by eyepiece and can judge the fiber end face verticality, have very strong practicality and high efficiency.
Claims (8)
1. the fiber end face perpendicularity checking instrument comprises frame, is arranged on light-source system, object lens, eyepiece, saturating anti-prism on the frame, it is characterized in that: further comprising be used to the fiber bench that detected optical fiber is set, optical fiber be positioned at object lens one side and with the light shaft coaxle of object lens; The light that light-source system sends enters object lens along the objective lens optical axis direction behind saturating anti-prism, the light that sees through object lens enters eyepiece after again seeing through object lens, saturating anti-prism after by the end face reflection of optical fiber.
2. fiber end face perpendicularity checking instrument as claimed in claim 1, it is characterized in that: the optical axis of object lens and the optical axis of eyepiece are on same straight line, and saturating anti-prism is between object lens and eyepiece.
3. fiber end face perpendicularity checking instrument as claimed in claim 2, it is characterized in that: saturating anti-prism is arranged on the frame movably along the optical axis of object lens.
4. fiber end face perpendicularity checking instrument as claimed in claim 2 is characterized in that: the described frame side of comprising body seat, eyepiece mount and the lens drum that is provided with object lens are threaded connection respectively the relative both sides at square body seat, in the saturating anti-prism side of the being arranged on body seat; The other end of lens drum arranges fiber bench; The light source base that is provided with light source is threaded connection on square body seat.
5. fiber end face perpendicularity checking instrument as claimed in claim 4, described light source is the LED lamp that sends green glow.
6. fiber end face perpendicularity checking instrument as claimed in claim 1, it is characterized in that: further comprising before being arranged on eyepiece, with the cross-graduation plate of eyepiece light shaft coaxle.
7. fiber end face verticality inspection method is characterized in that: adopt by frame, be arranged on light-source system, object lens, eyepiece, saturating anti-prism on the frame, be used for the checkout facility that the fiber bench of fixing detected optical fiber forms; Optical fiber be positioned at object lens one side and with the light shaft coaxle of object lens; The light that light-source system sends enters object lens along the objective lens optical axis direction behind saturating anti-prism, the light that sees through object lens enters eyepiece after again seeing through object lens, saturating anti-prism after by the end face reflection of optical fiber; Judge the fiber end face verticality according to the fiber end face kine bias that eyepiece is seen from the degree of eyepiece optical axis.
8. fiber end face verticality inspection method as claimed in claim 7 is characterized in that: checkout facility also comprise be arranged on eyepiece before, with the cross-graduation plate of eyepiece light shaft coaxle; Judge the fiber end face verticality according to the fiber end face kine bias that eyepiece is seen from the degree at cross-graduation plate center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210565446XA CN102997869A (en) | 2012-12-24 | 2012-12-24 | Optical fiber end face verticality tester and testing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210565446XA CN102997869A (en) | 2012-12-24 | 2012-12-24 | Optical fiber end face verticality tester and testing method |
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| CN102997869A true CN102997869A (en) | 2013-03-27 |
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| CN201210565446XA Pending CN102997869A (en) | 2012-12-24 | 2012-12-24 | Optical fiber end face verticality tester and testing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104516059A (en) * | 2013-09-27 | 2015-04-15 | 爱斯福公司 | Multiple-fiber connector inspection |
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| JPS58113706A (en) * | 1981-12-26 | 1983-07-06 | Nippon Kogaku Kk <Nikon> | Detector for horizontal position |
| JPS5947153A (en) * | 1982-09-08 | 1984-03-16 | Ricoh Co Ltd | Lens grinding device |
| CN2185422Y (en) * | 1994-03-26 | 1994-12-14 | 中国科学院西安光学精密机械研究所 | Multifunctional autocollimating direct-measuring micro-parallel light tube |
| CN101561260A (en) * | 2008-04-16 | 2009-10-21 | 周其 | Optical fibre end face surveymeter |
| CN202101652U (en) * | 2011-04-21 | 2012-01-04 | 上海理工大学 | Autocollimation measuring instrument |
| CN102305596A (en) * | 2011-04-27 | 2012-01-04 | 浙江大学 | Device and method for controlling rotation error in interference detection of surface shape of spherical surface |
| CN202994107U (en) * | 2012-12-24 | 2013-06-12 | 南京东利来光电实业有限责任公司 | Instrument for detecting verticality of end face of fiber |
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2012
- 2012-12-24 CN CN201210565446XA patent/CN102997869A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58113706A (en) * | 1981-12-26 | 1983-07-06 | Nippon Kogaku Kk <Nikon> | Detector for horizontal position |
| JPS5947153A (en) * | 1982-09-08 | 1984-03-16 | Ricoh Co Ltd | Lens grinding device |
| CN2185422Y (en) * | 1994-03-26 | 1994-12-14 | 中国科学院西安光学精密机械研究所 | Multifunctional autocollimating direct-measuring micro-parallel light tube |
| CN101561260A (en) * | 2008-04-16 | 2009-10-21 | 周其 | Optical fibre end face surveymeter |
| CN202101652U (en) * | 2011-04-21 | 2012-01-04 | 上海理工大学 | Autocollimation measuring instrument |
| CN102305596A (en) * | 2011-04-27 | 2012-01-04 | 浙江大学 | Device and method for controlling rotation error in interference detection of surface shape of spherical surface |
| CN202994107U (en) * | 2012-12-24 | 2013-06-12 | 南京东利来光电实业有限责任公司 | Instrument for detecting verticality of end face of fiber |
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| 胡彦群: "自动准直仪在机器制造测量中的几种用法", 《机车车辆工艺》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104516059A (en) * | 2013-09-27 | 2015-04-15 | 爱斯福公司 | Multiple-fiber connector inspection |
| US9841579B2 (en) | 2013-09-27 | 2017-12-12 | Exfo Inc. | Multiple-fiber connector inspection |
| CN104516059B (en) * | 2013-09-27 | 2018-04-24 | 爱斯福公司 | Multiple fiber optical connector inspection |
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Application publication date: 20130327 |