CN204410965U - Export the laser therapeutic head of circular collimation hot spot - Google Patents
Export the laser therapeutic head of circular collimation hot spot Download PDFInfo
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- CN204410965U CN204410965U CN201520025361.1U CN201520025361U CN204410965U CN 204410965 U CN204410965 U CN 204410965U CN 201520025361 U CN201520025361 U CN 201520025361U CN 204410965 U CN204410965 U CN 204410965U
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Abstract
This utility model relate to a kind of utilize laser to transmit surgical instruments from the energy of on-mechanical form to human body or device, be specifically related to a kind of laser therapeutic head exporting circular collimation hot spot, comprise lens barrel, lens and centring ring, lens barrel one end connects joint arm, the other end connects elasticity centring ring, elasticity centring ring connects centring ring by vertical rod, lens barrel inside arranges lens I in turn, lens II and lens III, lens I is located at lens barrel one end near joint arm, lens I adopts convex lens, lens II adopts concavees lens, lens III adopts convex lens, the lens module focus that focus and lens II and the lens III of lens I are formed overlaps.This utility model structure is simple, easy to use, takes into account 1064nm and 532nm two kinds of wavelength, keep beam collimation when two kinds of wavelength light beams switch, the angle of divergence is less than 0.3mrad, and output beam radius difference is within 0.2mm, spot size is stablized, and effectively reduces aberration.
Description
Technical field
This utility model relate to a kind of utilize laser to transmit surgical instruments from the energy of on-mechanical form to human body or device, be specifically related to a kind of laser therapeutic head exporting circular collimation hot spot.
Background technology
1064nm/532nm adjusts Q nd yag doubled-frequency laser therapy apparatus to be widely used in laser beautifying field, and it is mainly used in dispelling skin green grass or young crops, blue birthmark, nevus fuscoceruleus ophthalmomaxillaris and dark color and tatoos.Existing therapy apparatus output beam is all generally focused beam, and spot size is difficult to control, and too closely, hot spot is excessive, and energy diminishes, and is difficult to reach good therapeutic effect for laser therapeutic head and skin distance; Treatment head and skin hypertelorism, laser handle starts to focus on, thus makes energy hot spot less, and energy is higher, and overmedication likely causes pain even to burn.
Utility model content
For solving the deficiency in above-mentioned technology, the purpose of this utility model is: provide a kind of laser therapeutic head exporting circular collimation hot spot, take into account 1064nm and 532nm two kinds of wavelength, keep beam collimation when two kinds of wavelength light beams switch, spot size is stablized, and ensures therapeutic effect.
For solving its technical problem, technical solution adopted in the utility model is:
The described laser therapeutic head exporting circular collimation hot spot, comprise lens barrel, lens and centring ring, lens barrel one end connects joint arm, and the other end connects elasticity centring ring, and elasticity centring ring connects centring ring by vertical rod, lens barrel inside arranges lens I, lens II and lens III in turn, lens I is located at lens barrel one end near joint arm, and lens I adopts convex lens, and lens II adopts concavees lens, lens III adopts convex lens, and the lens module focus that focus and lens II and the lens III of lens I are formed overlaps.
When this utility model uses, centring ring is pressed close to human body position to be treated, accurate positioning, laser divergent beams enter lens I through joint arm, focus in the focus of the focal length lens module be made up of lens II and lens III, collimate through lens II and lens III, export circular collimated light beam, joint arm belongs to the parts of existing laser therapy aparatus, repeats no more for its concrete structure.
Wherein, preferred version is:
The corresponding lens I in described lens barrel one end arranges lens I holddown groove, and lens I is fixed in lens I holddown groove by partition, is first placed in lens I holddown groove by lens I, then fixes partition during making, is fixed in lens I holddown groove by lens I thus.
The corresponding lens module of the described lens barrel other end arranges module holddown groove, between lens II and lens III, partition is set, lens module is fixed in module holddown groove by trim ring, separates is adopted between lens II and lens III, trim ring side contacts with lens III, and opposite side contacts with elasticity centring ring, and trim ring generally adopts elastomeric material to support, deformation behavior is better, can effectively prevent elasticity centring ring from damaging lens III.
Be threaded between described lens barrel with elasticity centring ring, elasticity centring ring is connected to centring ring by vertical rod, the length of vertical rod determines the distance at lens III and human body therapy position, in therapeutic process, the different state of an illness needs to adopt different irradiation distances, and different irradiation distance needs to change different elasticity centring rings, to adapt to treat needs, be threaded convenient disassembly, time saving and energy saving.
Described lens I adopts glass lens, the easy molding of glass lens, and not yielding, can use under high power laser light.
Design principle of the present utility model is:
1064nm/532nm laser is Gaussian beam, and the far-field divergence angle of Gaussian beam and the pass of waist radius are 2 θ=2 λ/π ω
0, this also just says, waist radius ω
0larger, far-field divergence angle θ is less, and the collimation of laser is better, reduce far-field divergence angle θ, must expand the waist radius ω of divergent beams
0, design the optical system of lens barrel, lens I, lens II and lens III composition thus.
Lens II and lens III adopts the lens module combined focal length of convex lens and concavees lens composition long respectively, collimating effect is good, lens II and lens III adopts two kinds of different materials respectively, can effective color difference eliminating, is applicable to the switching of 1064nm/532nm two kinds of optical maser wavelengths.
When the girdling the waist near the focal length of lens of incident illumination, the waist radius of emergent light and the waist radius of incident illumination are inversely proportional to, and therefore, the waist radius of emergent light be made to become large thus obtain the little angle of divergence, must reduce the waist radius of divergent beams.Short focus convex lens just in time can reach the object reducing light beam, therefore adopts short focus lens I, utilizes it first to reduce the waist radius of light beam.
Lens II and lens III forms the lens module of a long-focus, the focus of lens module overlaps with the focal position of divergent beams after lens I focuses on, adopt two lens design, the focal length of Iarge-scale system can be added, lens II and lens III adopts two kinds of different materials respectively, can effectively reduce the aberration of 1064nm and 532nm, makes two wavelength all have good collimating effect, the angle of divergence is less than 0.3mrad, and output beam radius difference is within 0.2mm.
Compared with prior art, this utility model has following beneficial effect:
This utility model structure is simple, easy to use, takes into account 1064nm and 532nm two kinds of wavelength, keeps beam collimation when two kinds of wavelength light beams switch, and spot size is stablized, and ensures therapeutic effect.During use, centring ring is pressed close to human body position to be treated, accurate positioning, laser divergent beams enter lens I through joint arm, focus in the focus of the focal length lens module be made up of lens II and lens III, collimate through lens II and lens III, lens II and lens III adopts two kinds of different materials respectively, can effectively reduce the aberration of 1064nm and 532nm, makes two wavelength all have good collimating effect, the angle of divergence is less than 0.3mrad, and output beam radius difference is within 0.2mm.
Accompanying drawing explanation
Fig. 1 this utility model structural representation.
In figure: 1, joint arm; 2, partition; 3, lens I; 4, lens barrel; 5, lens II; 6, lens III; 7, trim ring; 8, elasticity centring ring; 9, vertical rod; 10, centring ring; 11, divergent beams; 12, collimated beam.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model embodiment is described further:
As shown in Figure 1, the laser therapeutic head exporting circular collimation hot spot described in the utility model, comprise lens barrel 4, lens and centring ring 10, lens barrel 4 one end connects joint arm 1, the other end connects elasticity centring ring 8, elasticity centring ring 8 connects centring ring 10 by vertical rod 9, lens barrel 4 inside arranges lens I3 in turn, lens II5 and lens III6, lens I3 is located at lens barrel 4 one end near joint arm 1, lens I3 adopts convex lens, lens II5 adopts concavees lens, lens III6 adopts convex lens, the lens module focus that focus and lens II5 and the lens III6 of lens I3 are formed overlaps.
Wherein, the corresponding lens I3 in lens barrel 4 one end arranges lens I holddown groove, and lens I3 is fixed in lens I holddown groove by partition, is first placed in lens I holddown groove by lens I3, then fixes partition 2 during making, is fixed on by lens I3 in lens I holddown groove thus; The corresponding lens module of lens barrel 4 other end arranges module holddown groove, partition 2 is set between lens II5 and lens III6, lens module is fixed in module holddown groove by trim ring 7, partition 2 is adopted to separate between lens II5 and lens III6, trim ring 7 side contacts with lens III6, and opposite side contacts with elasticity centring ring 8, and trim ring 7 generally adopts elastomeric material to support, deformation behavior is better, can effectively prevent elasticity centring ring 8 from damaging lens III6; Be threaded between lens barrel 4 with elasticity centring ring 8, elasticity centring ring 8 is connected to centring ring 10 by vertical rod 9, the length of vertical rod 9 determines the distance at lens III6 and human body therapy position, in therapeutic process, the different state of an illness needs to adopt different irradiation distances, and different irradiation distance needs to change different elasticity centring rings 8, to adapt to treat needs, be threaded convenient disassembly, time saving and energy saving; Lens I3 adopts glass lens, the easy molding of glass lens, and not yielding, can use under high power laser light.
When this utility model uses, centring ring 10 is pressed close to human body position to be treated, accurate positioning, laser divergent beams 11 enter lens I3 through joint arm 1, focus in the focus of the focal length lens module be made up of lens II5 and lens III6, collimate through lens II5 and lens III6, export circular collimated light beam 12, joint arm 1 belongs to the parts of existing laser therapy aparatus, repeats no more for its concrete structure.
1064nm/532nm laser is Gaussian beam, and the far-field divergence angle of Gaussian beam and the pass of waist radius are 2 θ=2 λ/π ω
0, this also just says, waist radius ω
0larger, far-field divergence angle θ is less, and the collimation of laser is better, reduce far-field divergence angle θ, must expand the waist radius ω of divergent beams 11
0, design the optical system of lens barrel 4, lens I3, lens II5 and lens III6 composition thus.
Lens II5 and lens III6 adopts the lens module combined focal length of convex lens and concavees lens composition long respectively, collimating effect is good, lens II5 and lens III6 adopts two kinds of different materials respectively, can effective color difference eliminating, is applicable to the switching of 1064nm/532nm two kinds of optical maser wavelengths.
When the girdling the waist near the focal length of lens of incident illumination, the waist radius of emergent light and the waist radius of incident illumination are inversely proportional to, and therefore, the waist radius of emergent light be made to become large thus obtain the little angle of divergence, must reduce the waist radius of divergent beams 11.Short focus convex lens just in time can reach the object reducing light beam, therefore adopts short focus lens I3, utilizes it first to reduce the waist radius of light beam.
Lens II5 and lens III6 forms the lens module of a long-focus, the focus of lens module overlaps with the focal position of divergent beams 11 after lens I3 focuses on, adopt two lens design, the focal length of Iarge-scale system can be added, lens II5 and lens III6 adopts two kinds of different materials respectively, can effectively reduce the aberration of 1064nm and 532nm, makes two wavelength all have good collimating effect, the angle of divergence is less than 0.3mrad, and output beam radius difference is within 0.2mm.
Claims (6)
1. one kind exports the laser therapeutic head of circular collimation hot spot, it is characterized in that, comprise lens barrel (4), lens and centring ring (10), lens barrel (4) one end connects joint arm (1), the other end connects elasticity centring ring (8), elasticity centring ring (8) connects centring ring (10) by vertical rod (9), lens barrel (4) inside arranges lens I (3) in turn, lens II (5) and lens III (6), lens I (3) is located at lens barrel (4) one end near joint arm (1), lens I (3) adopts convex lens, lens II (5) adopts concavees lens, lens III (6) adopts convex lens, the lens module focus that focus and lens II (5) and the lens III (6) of lens I (3) are formed overlaps.
2. the laser therapeutic head exporting circular collimation hot spot according to claim 1, it is characterized in that, corresponding lens I (3) in described lens barrel (4) one end arrange lens I holddown groove, and lens I (3) is fixed in lens I holddown groove by partition.
3. the laser therapeutic head exporting circular collimation hot spot according to claim 1 and 2, it is characterized in that, the corresponding lens module of described lens barrel (4) other end arranges module holddown groove, arrange partition (2) between lens II (5) and lens III (6), lens module is fixed in module holddown groove by trim ring (7).
4. the laser therapeutic head exporting circular collimation hot spot according to claim 1, is characterized in that, be threaded between described lens barrel (4) with elasticity centring ring (8).
5. the laser therapeutic head exporting circular collimation hot spot according to claim 1, it is characterized in that, described lens I (3) adopts glass lens.
6. the laser therapeutic head exporting circular collimation hot spot according to claim 1, it is characterized in that, described lens II (5) adopts BK7 glass lens, and lens III (6) adopts SF2 glass lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520025361.1U CN204410965U (en) | 2015-01-14 | 2015-01-14 | Export the laser therapeutic head of circular collimation hot spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520025361.1U CN204410965U (en) | 2015-01-14 | 2015-01-14 | Export the laser therapeutic head of circular collimation hot spot |
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| Publication Number | Publication Date |
|---|---|
| CN204410965U true CN204410965U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520025361.1U Expired - Fee Related CN204410965U (en) | 2015-01-14 | 2015-01-14 | Export the laser therapeutic head of circular collimation hot spot |
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| CN (1) | CN204410965U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111249001A (en) * | 2020-02-14 | 2020-06-09 | 倪翔 | Carbon dioxide laser for cutting skin fibroid lesion tissue |
-
2015
- 2015-01-14 CN CN201520025361.1U patent/CN204410965U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111249001A (en) * | 2020-02-14 | 2020-06-09 | 倪翔 | Carbon dioxide laser for cutting skin fibroid lesion tissue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20190114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |