CN208459674U - Laser coaxial focusing device - Google Patents
Laser coaxial focusing device Download PDFInfo
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- CN208459674U CN208459674U CN201820640180.3U CN201820640180U CN208459674U CN 208459674 U CN208459674 U CN 208459674U CN 201820640180 U CN201820640180 U CN 201820640180U CN 208459674 U CN208459674 U CN 208459674U
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- laser
- mirror
- concave mirror
- focusing device
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Abstract
The utility model discloses a kind of laser coaxial focusing device, including laser input mouth, plane mirror, the first concave mirror, the second concave mirror, is able to solve with CO2Laser is that all kinds of infrared lasers of representative and instruction laser line focus are formed by that focus diameter is inconsistent, and focus can not be completely coincident, or even situation that can not be coaxial, the method for using the method for reflection to replace refraction make to indicate laser and with CO2Laser is the completely same overlapping of axles of all kinds of infrared lasers of representative, so that micro laser can be widely applied for each field using medical industry as representative.
Description
Technical field
The present invention designs a kind of laser aid, more particularly to laser coaxial focusing device.
Background technique
CO2Laser is widely used in medical treatment and industrial processes, generally requires and uses laser beam after optical focus.
CO2Optical maser wavelength 10600nm is invisible laser, must be made with visible laser (wavelength 532-650nm) in application
For indicate laser, instruction laser must and CO2Laser coaxial makes to indicate laser and CO2Laser is completely coincident on the target tissue, behaviour
CO could accurately be used according to position indicated by laser is indicated by making personnel2Laser.
In the prior art, first CO2Laser merges to form same light path laser beam with instruction laser, reuses lens system
It focuses.It will be appreciated by those skilled in the art that the refractive index of different wave length is different in same medium, instruction laser and CO2 swash
The wavelength of light differs greatly, and focal length is significantly different, indicates that the focal length of laser cannot represent the focal length of CO2 laser, causes to indicate
The spot diameter and CO that laser is formed on the target tissue after lens system focuses2Laser is after lens system focuses in target
The spot diameter that tissue is formed is inconsistent, can not be completely coincident, and forms error, and this error makes CO2 laser, cannot reach
Minimum focal beam spot affects the effect of cutting and punching.
Above situation is when lens and light beam are in complete centrosymmetric perfect condition, is only that focal length difference can generate
Error.But actually since light beam caused by the error of errors of centration caused by lens material and processing and light-conducting system
Deviate the error in input port axle center, so error existing in theprior art is much larger than theoretical error, is not only formed
Spot diameter is inconsistent, also will cause CO2Laser-formed hot spot and the laser-formed hot spot of instruction can not be the same as the feelings of overlapping of axles
Condition.
In order to better understand the defect of the prior art, listed in Figure of description in prior art theory and real
Optical system structure on border and its hot spot formed on the target tissue.
CO described above2Laser is the typical case of laser, and all kinds of laser have similar ask during application
Topic.
These errors can be tolerated in visual surgical procedure, but when doing delicate procedure under the microscope, this error
It will cause serious consequence, constrain application of the laser in each field that micrurgy is representative.
Summary of the invention
Inventor considers that the basic reason for causing two beam laser that can not be completely coincident is because of instruction laser and CO2Laser
Refractive index is different, above-mentioned phenomenon would not occurs using the method for reflection if not using the method for refraction, can make to indicate laser
With CO2The completely same overlapping of axles of laser, so that laser surgey and micro laser operation can be carried out accurately.
Laser coaxial focusing device of the present invention is as shown in Figure 1, include laser input mouth, two-sided flat mirror, first
Concave mirror, the second concave mirror, the two-sided flat mirror center are equipped with aperture, and first concave mirror, aperture, the second concave mirror are located at
The same optical axis line of the present apparatus, the two-sided flat mirror and optical axis angle are 45 °, and the two-sided flat mirror includes the first plane mirror,
Second plane mirror, first concave mirror and the second concave mirror are located at the both sides of two-sided flat mirror, first flat mirror
To the concave surface of the first concave mirror, the second flat mirror is to the concave surface of the second concave mirror.
The laser input mouth, the present apparatus to be connected with laser light-conducting system, affiliated laser input mouth is defeated
Entering laser includes infrared laser and instruction laser.
The relative position of first concave mirror and two-sided planar mirror is fixed.
The relative position of second concave mirror and two-sided planar mirror is adjustable.
The focal length of second concave mirror can be different also identical from the focal length of the first concave mirror.
It is recessed to reflex to first through the first plane mirror of input port directive for the synthesis light beam of the infrared laser and instruction laser
Face mirror through the first concave mirror and is focused through aperture to the second concave mirror, through the second concave mirror to the second plane mirror,
Target tissue is focused on through the reflection of the second plane mirror.
The infrared laser is invisible laser, including is not limited to CO2Laser, the instruction laser are visible laser.
The infrared laser may include the infrared laser of one or more different wave lengths, and the instruction laser may include one kind
Or the visible laser of a variety of different wave lengths.
Detailed description of the invention
Fig. 1 is the optical system structure figure in prior art theory.
Fig. 2 is the hot spot formed on the target tissue in prior art theory.
Fig. 3 is the actual optical system structure figure of the prior art.
Fig. 4 is the hot spot that the prior art is actually formed on the target tissue.
Fig. 5 is a kind of optical system structure figure provided in an embodiment of the present invention.
Fig. 6 is a kind of optical system structure figure provided in an embodiment of the present invention.
Wherein, above-mentioned attached drawing includes the following drawings label
1, laser input mouth；2, plane mirror；21, the first plane mirror；22, the second plane mirror；3, the first concave mirror；4,
Two concave mirrors；5, aperture；6, infrared laser；7, laser is indicated；8, reflecting mirror
Specific embodiment
This laser coaxial focusing device does not use lens using mirror system, so can make two that wavelength differs greatly
Kind laser is focused into a focus.
Embodiment one
The present embodiment is illustrated in conjunction with Fig. 5, the synthesized laser beam containing instruction laser and infrared laser passes through laser
Input port 1 is irradiated on the first plane mirror 21 of the center equipped with the plane mirror 2 of aperture 5, passes through 21 reflection of the first plane mirror
After be irradiated to the first concave mirror 3, the focal length of the first concave mirror 3 is overlapped with aperture 5, after the first concave mirror focuses synthesized laser beam
It is irradiated on the second concave mirror 4 by aperture 5, synthesized laser beam focusing is reflected on target tissue by the second concave mirror 4, in target group
Knit formation focal beam spot.
Wherein the relative distance of the first concave mirror and plane mirror is fixed, by adjusting the opposite of the second concave mirror and plane mirror
Distance focuses, to obtain most suitable focal length.
Embodiment two
The present embodiment is illustrated in conjunction with Fig. 5, the synthesized laser beam containing instruction laser and infrared laser passes through laser
Input port 1 is irradiated on the first plane mirror 21 of the center equipped with the plane mirror 2 of aperture 5, passes through 21 reflection of the first plane mirror
After be irradiated to the first concave mirror 3, the focal length of the first concave mirror 3 is overlapped with aperture 5, after the first concave mirror focuses synthesized laser beam
It being irradiated on the second concave mirror 4 by aperture 5, synthesized laser beam focusing is reflected on the second plane mirror 22 by the second concave mirror 4,
Focal beam spot is formed on the target tissue by the reflection of the second plane mirror 22, and through reflecting mirror 8, and wherein reflecting mirror 8 can manipulate sharp
The direction of light.
Wherein the relative distance of the first concave mirror and plane mirror is fixed, by adjusting the opposite of the second concave mirror and plane mirror
Distance focuses, to obtain most suitable focal length.
It will be understood by those skilled in the art that instruction laser can be one or more differences to realize different effects
Wavelength laser, infrared laser can be one or more different wave length laser.
Infrared laser and the instruction complete coaxial focusing of laser are realized by this method, and the present invention can be widely applied for
Using medical industry as each field of representative, more specifically, it is applied to laser surgey and laser micro-surgery.
Those skilled in that art should understand that be not limited to the foregoing is merely the preferred embodiment of the present invention
The present invention, for those skilled in the art, the invention may be variously modified and varied.It is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. laser coaxial focusing device, which is characterized in that including laser input mouth, two-sided flat mirror, the first concave mirror, second recessed
Face mirror, the two-sided flat mirror center are equipped with aperture, and first concave mirror, aperture, the second concave mirror are located at the same of the present apparatus
Optical axis, the two-sided flat mirror and optical axis angle are 45 °, and the two-sided flat mirror includes the first plane mirror, the second plane mirror, institute
It states the first concave mirror and the second concave mirror is located at the both sides of two-sided flat mirror, first flat mirror is to the first concave mirror
Concave surface, the second flat mirror is to the concave surface of the second concave mirror.
2. laser coaxial focusing device as described in claim 1, which is characterized in that the laser input mouth, to incite somebody to action this
Device is connected with laser light-conducting system, and affiliated laser input mouth input laser includes infrared laser and instruction laser.
3. laser coaxial focusing device as described in claim 1, which is characterized in that first concave mirror and two-sided planar mirror
Relative position fix.
4. laser coaxial focusing device as described in claim 1, which is characterized in that second concave mirror and two-sided planar mirror
Relative position it is adjustable.
5. laser coaxial focusing device as described in claim 1, which is characterized in that the focal length and first of second concave mirror
The focal length of concave mirror can be different also identical.
6. laser coaxial focusing device as claimed in claim 2, which is characterized in that the conjunction of the infrared laser and instruction laser
At light beam through the first plane mirror of input port directive, the first concave mirror is reflexed to, through the first concave mirror and is focused by small
Hole focuses on target tissue through the reflection of the second plane mirror through the second concave mirror to the second plane mirror to the second concave mirror.
7. laser coaxial focusing device as claimed in claim 6, which is characterized in that the infrared laser is invisible laser,
For realizing concrete function, including it is not limited to CO2Laser, the instruction laser are visible laser, play instruction guiding function.
8. laser coaxial focusing device as claimed in claim 7, which is characterized in that the infrared laser may include a kind of or more
The infrared laser of kind different wave length, the instruction laser may include the visible laser of one or more different wave lengths.
9. laser coaxial focusing device as claimed in claim 8, which is characterized in that further include reflecting mirror for manipulating laser
Direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820640180.3U CN208459674U (en) | 2018-05-02 | 2018-05-02 | Laser coaxial focusing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820640180.3U CN208459674U (en) | 2018-05-02 | 2018-05-02 | Laser coaxial focusing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208459674U true CN208459674U (en) | 2019-02-01 |
Family
ID=65150462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820640180.3U Expired - Fee Related CN208459674U (en) | 2018-05-02 | 2018-05-02 | Laser coaxial focusing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208459674U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441896A (en) * | 2018-05-02 | 2019-11-12 | 上海晟昶光电技术有限公司 | Laser coaxial focusing device |
-
2018
- 2018-05-02 CN CN201820640180.3U patent/CN208459674U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441896A (en) * | 2018-05-02 | 2019-11-12 | 上海晟昶光电技术有限公司 | Laser coaxial focusing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190201 Termination date: 20210502 |
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| CF01 | Termination of patent right due to non-payment of annual fee |