WO2020019280A1 - Collimateur et tube de guidage optique - Google Patents

Collimateur et tube de guidage optique Download PDF

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Publication number
WO2020019280A1
WO2020019280A1 PCT/CN2018/097344 CN2018097344W WO2020019280A1 WO 2020019280 A1 WO2020019280 A1 WO 2020019280A1 CN 2018097344 W CN2018097344 W CN 2018097344W WO 2020019280 A1 WO2020019280 A1 WO 2020019280A1
Authority
WO
WIPO (PCT)
Prior art keywords
self
focusing lens
light
collimator
capillary tube
Prior art date
Application number
PCT/CN2018/097344
Other languages
English (en)
Chinese (zh)
Inventor
明伟杰
高峻
宋李烟
梁为亮
杨里珍
Original Assignee
深圳永士达医疗科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳永士达医疗科技有限公司 filed Critical 深圳永士达医疗科技有限公司
Publication of WO2020019280A1 publication Critical patent/WO2020019280A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends

Definitions

  • the invention relates to the field of medical equipment, and in particular to a collimator.
  • the probe of the swept-frequency OCT optical imaging system needs to change the direction of the beam by 90 ° to detect the target.
  • 45 ° refractive prisms are basically used to attach to the collimator. This method increases the process and It will take up space, which is a great limitation on the limited space in medical treatment, which leads to inconvenience in use.
  • an object of the present invention is to provide a collimator with a simple structure and a small size.
  • a collimator includes a capillary tube and an optical fiber.
  • the optical fiber portion is contained in the capillary tube.
  • the collimator further includes a glass sleeve and a self-focusing lens.
  • the capillary tube and the self-focusing lens portion are plugged in Inside the glass sleeve and fixed to the glass sleeve, the self-focusing lens includes a reflecting surface and a light emitting surface, a light beam in the optical fiber is reflected from the light reflecting surface and exits from the light emitting surface, and the beam angle changes 90 degrees.
  • the width of the gap is 0-0.7 mm.
  • the self-focusing lens includes a light incident surface, the light incident surface forms an edge on one side of the gap, and the light incident surface forms an acute angle with the vertical direction.
  • the included angle is 8 °.
  • the light incident surface is oval.
  • the capillary is provided with a capillary light emitting surface, and the capillary light emitting surface is located at the other edge of the gap and is parallel to the light incident surface.
  • the self-focusing lens includes a reflecting surface and a light emitting surface, the reflecting surface is an inclined surface, the light emitting surface is a plane parallel to a horizontal plane, and the intersection of the reflecting surface and the light emitting surface is a straight line.
  • An optical catheter connection structure includes an optical fiber and a capillary tube, and the optical fiber is partially connected to the capillary tube.
  • the optical tube connection structure further includes a glass sleeve and a self-focusing lens, and the capillary tube and the self-focusing lens are respectively partially The glass tube is inserted at opposite ends of the glass tube and fixed to the glass tube, and a gap is formed between the capillary tube and the self-focusing lens.
  • the capillary tube and the self-focusing lens are respectively fixed to the glass sleeve by glue.
  • the collimator of the present invention further includes a glass tube and a self-focusing lens.
  • the capillary tube and the self-focusing lens are partially inserted into the glass tube and fixed to the glass tube.
  • the self-focusing lens includes a reflective surface and a light-emitting surface.
  • the light beam in the fiber is collimated by the self-focusing lens at a suitable distance, and then reflected from the reflective surface and emitted from the light emitting surface.
  • the beam angle is changed by 90 degrees, which can effectively shorten the length of the collimator by more than 1mm and simplify the manufacturing process of the collimator It can change the direction of the beam by 90 ° without bonding 45 ° refractive prisms, and can also meet the special requirements for working distance and spot size.
  • FIG. 1 is a perspective view of a collimator according to the present invention.
  • FIG. 2 is a cross-sectional view of the collimator of FIG. 1;
  • FIG. 3 is a schematic diagram of the internal structure of the collimator of FIG. 1;
  • FIG. 4 is an optical path diagram of a self-focusing lens of the collimator of FIG. 1.
  • a collimator 100 includes a glass tube 10, a self-focusing lens 20, a capillary 30, an optical fiber 40, and an adhesive 50.
  • the self-focusing lens 20 includes a light reflecting surface 21, a light emitting surface 22 and a light incident surface 23.
  • the self-focusing lens 20 has a cylindrical shape as a whole.
  • the light incident surface 23 is located at an end of one end of the self-focusing lens 20 and has an oval shape.
  • the light incident surface 23 is an inclined surface and forms an acute angle with the vertical direction. Preferably, the included angle is 8 °.
  • the light reflecting surface 21 and the light emitting surface 22 are located at opposite ends of the self-focusing lens 20.
  • the reflective surface 21 is semi-elliptical.
  • the angle between the reflecting surface 21 and the horizontal plane is 45 °.
  • the light emitting surface 22 is a plane and is parallel to the horizontal plane.
  • the intersection of the light emitting surface 22 and the reflecting surface 21 is a straight line.
  • the length of the light emitting surface 22 is 0.8 mm.
  • the capillary 30 is provided with a through hole in the center.
  • the capillary 30 is provided with a capillary light emitting surface 32.
  • the capillary light emitting surface 32 is located at an end of the capillary 30.
  • the capillary light exit surface 32 is an inclined surface and has an oval shape.
  • the capillary light exit surface 32 forms an acute angle with the vertical direction. Preferably, the included angle is 8 °.
  • the optical fiber 40 is accommodated in the through hole of the capillary tube 30, and the optical fiber 40 and the capillary tube 30 are fixed with glue to form a tail glue 50.
  • the capillary tube 30 and the self-focusing lens 20 are respectively partially inserted at opposite ends of the glass sleeve 10 and fixed to the glass sleeve 10 by glue.
  • the reflective surface 21 and the light emitting surface 22 extend out of the glass sleeve 10.
  • a gap 60 is formed between the capillary tube 30 and the self-focusing lens 20. The width of the gap 60 is 0-0.7 mm.
  • the collimator 100 When the collimator 100 is used, light is emitted from the optical fiber 40 to form a point light source.
  • the light enters the self-focusing lens 20 from the light incident surface 23, is collimated by the self-focusing lens 20, is reflected by the reflective surface 21, and exits from the light emitting surface 22, resulting in a 90 ° turn.
  • the length of the collimator 100 can be effectively shortened by more than 1mm, and the manufacturing process of the collimator 100 is simplified.
  • the 45 ° refraction prism can be used to change the direction of the beam by 90 °. It can meet the special requirements of working distance and spot size.
  • the invention also relates to an optical conduit connection structure, which includes a glass sleeve 10, a self-focusing lens 20, a capillary 30, an optical fiber 40, and a tail glue 50.
  • the optical fiber 40 is accommodated in the through hole of the capillary tube 30, and the optical fiber 40 and the capillary tube 30 are fixed with glue to form a tail glue 50.
  • the capillary tube 30 and the self-focusing lens 20 are respectively partially inserted at opposite ends of the glass sleeve 10 and fixed to the glass sleeve 10 by glue.
  • a gap 60 is formed between the capillary tube 30 and the self-focusing lens 20. The width of the gap 60 is 0-0.7 mm.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

La présente invention concerne un collimateur (100), consistant en un tube capillaire (30) et en une fibre optique (40), une partie de la fibre optique (40) étant logée dans le tube capillaire. Le collimateur consiste également en une douille de verre (10) et en une lentille à focalisation automatique (20). Le tube capillaire et la lentille à focalisation automatique sont partiellement enfichés dans la douille de verre et fixés par la douille de verre. La lentille à focalisation automatique consiste en une surface de réflexion de lumière et en une surface de transmission de lumière. Un faisceau lumineux dans la fibre optique est collimaté par la lentille à focalisation automatique à une distance appropriée, puis le faisceau de lumière est réfléchi par la surface de réflexion de lumière et émis par la surface de transmission de lumière, l'angle du faisceau de lumière étant modifié de 90 degrés. La présente invention permet de réduire efficacement la longueur d'un collimateur de plus de 1 mm, de simplifier un procédé de fabrication du collimateur et, en même temps, de répondre aux exigences en ce qui concerne la distance de travail et la taille de la granulation cohérente.
PCT/CN2018/097344 2018-07-23 2018-07-27 Collimateur et tube de guidage optique WO2020019280A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810811931.8 2018-07-23
CN201810811931.8A CN109061805A (zh) 2018-07-23 2018-07-23 一种准直器及光学导管连接结构

Publications (1)

Publication Number Publication Date
WO2020019280A1 true WO2020019280A1 (fr) 2020-01-30

Family

ID=64835319

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Application Number Title Priority Date Filing Date
PCT/CN2018/097344 WO2020019280A1 (fr) 2018-07-23 2018-07-27 Collimateur et tube de guidage optique

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CN (1) CN109061805A (fr)
WO (1) WO2020019280A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110133709B (zh) * 2019-06-06 2022-06-14 中国工程物理研究院激光聚变研究中心 类δ响应软X射线能谱仪

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4575194A (en) * 1984-03-26 1986-03-11 Xerox Corporation Semiconductor laser beam collimator
US6654518B1 (en) * 1999-10-28 2003-11-25 Oplink Communications, Inc. Tap output collimator
CN200989952Y (zh) * 2006-11-20 2007-12-12 深圳市天阳谷科技发展有限公司 光纤准直器
CN203825233U (zh) * 2014-04-15 2014-09-10 福建华科光电有限公司 一种带滤波薄膜的双光纤准直器
CN204129262U (zh) * 2014-07-24 2015-01-28 上海伟钊光学科技股份有限公司 光纤准直器
CN208721831U (zh) * 2018-07-23 2019-04-09 深圳永士达医疗科技有限公司 一种准直器及光学导管连接结构

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4575194A (en) * 1984-03-26 1986-03-11 Xerox Corporation Semiconductor laser beam collimator
US6654518B1 (en) * 1999-10-28 2003-11-25 Oplink Communications, Inc. Tap output collimator
CN200989952Y (zh) * 2006-11-20 2007-12-12 深圳市天阳谷科技发展有限公司 光纤准直器
CN203825233U (zh) * 2014-04-15 2014-09-10 福建华科光电有限公司 一种带滤波薄膜的双光纤准直器
CN204129262U (zh) * 2014-07-24 2015-01-28 上海伟钊光学科技股份有限公司 光纤准直器
CN208721831U (zh) * 2018-07-23 2019-04-09 深圳永士达医疗科技有限公司 一种准直器及光学导管连接结构

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