CN2305689Y - Device for precisely pointing laser beam focusing position - Google Patents
Device for precisely pointing laser beam focusing position Download PDFInfo
- Publication number
- CN2305689Y CN2305689Y CN 96203035 CN96203035U CN2305689Y CN 2305689 Y CN2305689 Y CN 2305689Y CN 96203035 CN96203035 CN 96203035 CN 96203035 U CN96203035 U CN 96203035U CN 2305689 Y CN2305689 Y CN 2305689Y
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- CN
- China
- Prior art keywords
- mirror
- laser beam
- reflecting lens
- convex
- concave mirror
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- Expired - Fee Related
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Abstract
The utility model belongs to optical equipment and the utility model relates to a control device with a high-precision coaxial laser beam focus adjusting-focusing and laser beam group. The utility model has the structure characteristic that the utility model is provided with a concave reflecting lens whose middle part is provided with an opening and a convex reflecting lens which can share one axle with the concave reflecting lens; the distance between the convex reflecting lens and the concave reflecting lens can be changed for carrying out the continuous focus adjusting operation and the focusing operation. A control device of a laser working position is composed of an inclined-plane reflecting lens and an operating handle; the operating handle can change the inclined angle of the plane reflecting lens so as to accurately control the position of the laser on the working plane. The device can be matched with a long-focus binocular microscope to use, so that the utility model can carry out the microsurgery operation or the minuteness laser processing.
Description
The utility model belongs to optical device, relates to the device of bundle focusing-focusing of high precision coaxial laser and laser beam position control
At present laser beam is carried out microsurgery and the technology of processing with fine laser comes into one's own more and more widely.The development and implementation of this technology, precondition are the technical measures that will have accurate indication laser beam focal position.This respect prior art and have problems as follows:
1. the CO of domestic production now
2The laser therapeutic apparantus transmitting device adopts leaded light joint leaded light, with the short focal length 100mm of monolithic zinc selenide lens focus because the condenser lens focal length is short, the pilot light that aberration causes (red He-Ne laser) and treat light (invisible CO
2Laser beam) COINCIDENCE PROBLEMS is also not serious, still can treat operation.(200mm～400mm) binocular operating microscope is implemented microsurgery, because pilot light seriously separates on workplace with treatment light, then can't be applied to microsurgery, or carry out fine Laser Processing as the adapted long-focus;
2. adopt and focus-focusing operation from axle spherical mirror focalizer, can solve the two laser concentricity problem, but also have aberration inevitably, and the aberration of focal beam spot is more serious, influence is actual to be used;
3. transmission-type transmitting device will make indication laser and work therapy laser coaxial on workplace, then need with five or more the multi-disc lens carry out aberration correction, have the device complexity, the shortcoming that optical energy loss is big, manufacturing cost is high.
The purpose of this utility model is the shortcoming that will overcome prior art, a kind of device of accurate indication laser beam focal position is provided, reach red indication laser and on the working position, overlap with laser beam, hot spot do not exist aberration, simple in structure, optical energy loss is little, cheap for manufacturing cost.
Take following technical scheme for achieving the above object:
The utility model is the laser beam transmitting device, comprises laser beam focusing-focusing and working laser beam position control two parts.Focusing-focusing block is to be made of the concave mirror of middle perforate and convex reflecting mirror, and concave mirror is coaxial with convex reflecting mirror, and convex reflecting mirror and concave mirror can relatively move, to change the spacing of two mirrors.Work laser beam and indication laser beam transfer to strict coaxial after, by aperture incident in the middle of the concave mirror, through the convex reflecting mirror reflection, then by concave reflection mirror reflection and focusing.Continuously change the spacing between concave mirror and the convex reflecting mirror, can reach the purpose of continuous focusing and focusing.Plane mirror that is obliquely installed and control crank constitute the control device of working laser beam position, and control crank can change the inclination angle of plane mirror, with the position of hot spot on the accurate control working laser beam face.Concerning using surgical intervention, can accurately indicate lesions position with red He-Ne laser or semiconductor laser, implement CO
2Treatment laser to the cutting of lesion tissue, vaporize and solidify.
Advantage of the present utility model:
Adopt focusing-focusing of this high precision coaxial laser and laser beam position control device, but (200mm～400mm) binocular microscope is implemented microsurgery or fine Laser Processing to the adapted long-focus.Have simple in structure, cost is low, coaxial pointing accuracy height, the little and easy to operate good result of loss.
Embodiment with reference to the description of drawings technical scheme;
Accompanying drawing is a structural representation of the present utility model:
Concave mirror 2 among the figure, and the centre has aperture 3; Convex reflecting mirror 1 is coaxial with concave mirror 2; The radius-of-curvature of convex mirror 1 and concave mirror 2 need guarantee on the workplace spot diameter less than 0.2mm, and satisfies the requirement of binocular microscope focal length between 200～400mm.After indicating laser beam and work laser beam accent coaxial, incide convex reflecting mirror 1 and reflex to concave mirror 2 by aperture 3, change distance between two mirrors and can realize focusing-focusing on and reflex to the plane mirror 4 that is obliquely installed, then the position 7 of reflection lasering beam 5 to the workplace.Can change the inclination angle of plane mirror by operating grip 6, realize that accurately the control laser beam reaches desired position.The general closed planar inclination is got 45 °.
For realizing that the convex reflecting mirror 1 and the spacing of concave mirror 2 can change, can take concave mirror 2 fixing, convex mirror 1 can move relative to concave mirror 2; Or convex mirror 1 is fixing, and concave mirror 2 can move relative to convex mirror 1.
In order to obtain the good reflection effect, concave mirror, convex reflecting mirror and plane mirror all plate the rete that corresponding operation wavelength has high reflectance.
Claims (5)
1. accurately indicate the device of laser beam focal position, it is characterized in that forming focusing-focusing block by the concave mirror [2] and the convex reflecting mirror [1] of perforate [3] in the middle of, concave mirror [2] with convex reflecting mirror [1] but spacing relative variability under coaxial condition; Form the control assembly of working laser beam position by plane mirror that is obliquely installed [4] and operating grip [6], the inclination angle of plane mirror [4] changes by control crank [6].
2. according to the device of the described accurate indication laser beam focal position of claim 1, it is characterized in that concave mirror [2] is fixing, convex reflecting mirror [1] can move relative to concave mirror [2].
3. according to the device of the described accurate indication laser beam focal position of claim 1, it is characterized in that convex reflecting mirror [1] is fixing, concave mirror [2] can move relative to convex reflecting mirror [1].
4. according to the device of the described accurate indication laser beam focal position of claim 1, it is characterized in that convex mirror [1] is in the focused light passages of concave mirror [2], the radius-of-curvature of convex mirror [1] and concave mirror [2] need guarantee on the workplace spot diameter less than 0.2mm, and satisfies the requirement of binocular microscope focal length between 200mm～400mm.
5. according to the device of the described accurate indication laser beam focal position of claim 1, it is characterized in that plane mirror [4] is provided with by 45 ° of inclination angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96203035 CN2305689Y (en) | 1996-01-24 | 1996-01-24 | Device for precisely pointing laser beam focusing position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96203035 CN2305689Y (en) | 1996-01-24 | 1996-01-24 | Device for precisely pointing laser beam focusing position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2305689Y true CN2305689Y (en) | 1999-01-27 |
Family
ID=33888778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96203035 Expired - Fee Related CN2305689Y (en) | 1996-01-24 | 1996-01-24 | Device for precisely pointing laser beam focusing position |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2305689Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750711B (en) * | 2008-12-19 | 2011-12-21 | 财团法人工业技术研究院 | Focusing method and automatic focusing device and detection module thereof |
| CN102614018A (en) * | 2012-04-10 | 2012-08-01 | 威海高科医疗设备有限公司 | Laser microsurgery sighting device |
| CN110441896A (en) * | 2018-05-02 | 2019-11-12 | 上海晟昶光电技术有限公司 | Laser coaxial focusing device |
| CN115388766A (en) * | 2022-08-10 | 2022-11-25 | 睿励科学仪器（上海）有限公司 | Automatic focusing method for ellipsometry system |
-
1996
- 1996-01-24 CN CN 96203035 patent/CN2305689Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750711B (en) * | 2008-12-19 | 2011-12-21 | 财团法人工业技术研究院 | Focusing method and automatic focusing device and detection module thereof |
| CN102614018A (en) * | 2012-04-10 | 2012-08-01 | 威海高科医疗设备有限公司 | Laser microsurgery sighting device |
| CN102614018B (en) * | 2012-04-10 | 2015-02-04 | 威海高科医疗设备有限公司 | Laser microsurgery sighting device |
| CN110441896A (en) * | 2018-05-02 | 2019-11-12 | 上海晟昶光电技术有限公司 | Laser coaxial focusing device |
| CN115388766A (en) * | 2022-08-10 | 2022-11-25 | 睿励科学仪器（上海）有限公司 | Automatic focusing method for ellipsometry system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |