CN104076420A - Convex prisms and laser reflection device based on convex prisms - Google Patents
Convex prisms and laser reflection device based on convex prisms Download PDFInfo
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- CN104076420A CN104076420A CN201410279876.4A CN201410279876A CN104076420A CN 104076420 A CN104076420 A CN 104076420A CN 201410279876 A CN201410279876 A CN 201410279876A CN 104076420 A CN104076420 A CN 104076420A
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- 230000006835 compression Effects 0.000 description 4
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- 238000005516 engineering process Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
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Abstract
The invention relates to an optical device, and discloses a laser reflection device based on convex prisms. The laser reflection device comprises a pair of convex prisms arranged on the laser reflection position and the laser incident position respectively, the height tolerance of the optical axes of the two convex prisms and a guide rail face ranges from 1 mm to 3 mm, the incident faces of the convex prisms are arc-shaped convex faces, and the radius of curvature ranges from 15 mm to 30 mm. The convex prisms play a role in reflection and meanwhile can compress reflection light beams, the beam shrinkage role is brought into play, the reflection device can reflect lasers repeatedly, the laser energy is enhanced by dozens of times, and then excited fluorescence, Raman scattering light and other weak light are correspondingly enhanced.
Description
Technical field
The present invention relates to a kind of optical devices, related in particular to a kind of convex surface prism and the laser reflection device based on convex surface prism.
Background technology
General sieve prism, is on optics, to be used in optical instrument, is used for revising a kind of reflective prism of image orientation.General sieve prism is the isosceles right angle prism being fashioned into by glass blocks, and end plane is facing to right angle.In the use, light inclined-plane in prism enters, and through twice total reflection of right angle face, then penetrates original plane of incidence ejaculation, plays the effect of light reflection.
Because the plane of incidence of traditional general sieve prism is plane, plane can not can not make laser repeatedly carry out efficiently back reflective the laser beam compression of reflection, and the faint light such as the fluorescence of laser excitation and Raman diffused light is also difficult to be strengthened accordingly then.
Summary of the invention
The light beam that the present invention is directed to general sieve prismatic reflection in prior art can not be compressed, be difficult to repeatedly come efficiently back reflective, so the faint light such as the fluorescence of laser excitation and Raman diffused light are also difficult to obtain the corresponding shortcoming strengthening, and a kind of convex surface prism and the laser reflection device based on convex surface prism are provided.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
Laser reflection device based on convex surface prism, comprise guide rail, guide rail is provided with two slide blocks, and two slide blocks lay respectively at incident place and reflection place of laser, on two slide blocks, be all fixed with support, also comprise two convex surface prisms, convex surface prism, comprises two end faces, two right angle faces, two right angle faces are mutually vertical, also comprise an arc convex, two connection planes, and arc convex and two right angle faces are all between two end faces; Between arc convex and two right angle faces, by two, be connected plane and connect, the radius-of-curvature of arc convex is 15mm-30mm.Support is provided with governor motion, and governor motion is for regulating height and the angle of convex surface prism and guide pass; Governor motion is provided with picture frame, and picture frame is used for fixedly convex surface prism; The distribution that is centrosymmetric of two convex surface prisms, arc convex is relative; The difference in height of two convex surface prisms and guide pass is 1mm-3mm.
Slide block on guide rail is positioned at incident place and reflection place of laser, be about to incident place and reflection place that convex surface prism is placed in laser, between two prisms, form open laser reflection device, laser reflection device inner laser repeatedly carrys out back reflective efficiently, in reflection cavity, assemble, the short space that formation is assembled through laser, and the plane of incidence of this general sieve prism changes arc convex into by original plane, can make this general sieve prism when playing reflex, can be by the laser beam compression of reflection, play the effect of contracting bundle, so that in the enhancing of this short space inner laser energy decades of times, thereby make the faint light such as fluorescence that this space is excited and Raman diffused light have corresponding enhancing.
Support is provided with governor motion, governor motion is for regulating height and the angle of convex surface prism and guide pass, can be so that the reflection angle of convex surface prism reaches best by this governor motion, make the relative position of general sieve prism of incident place and reflection place in the best, strengthen to greatest extent the laser quantity in reflection cavity, the faint light such as the fluorescence that enhancing is excited and Raman diffused light.Governor motion is provided with picture frame, picture frame is for fixing convex surface prism, between the arc convex of convex surface prism and two right angle faces, is provided with and is connected plane, and this connection plane can be used as picture frame retaining part, can guarantee is not affecting under the prerequisite of prism result of use, to prism stablize, firm clamping.
The difference in height of two convex surface prisms and guide pass is 1mm-3mm, the optical axis of two prisms is not under same straight line, but there is certain deviation, as in same plane, laser Hui Yuanlu returns, can not make laser in reflection cavity, carry out multiple reflections, laser energy number can not get strengthening then, can not make the faint light such as the fluorescence that is excited and Raman diffused light be strengthened accordingly.
As preferably, two right angle faces are perpendicular to two end faces, and the normal parallel of arc convex is in end face.The prism of this kind of structure can make reflecting effect reach best, makes laser to greatest extent in prism internal reflection, thereby reflection cavity inner laser energy is reached to greatest extent, strengthens.
As preferably, the angle that connects plane and right angle face is 100 °～160 °.Within the scope of this, convex surface prism all can be by stable clamping.
Be more preferably, the angle that connects plane and right angle face is 135 °.This angle can make prism on support in steady state (SS), guarantee the nearest light harvesting effect of prism.
As preferably, frame bottom is provided with groove, and upper end of slide block is provided with the projection matching with frame bottom groove.Support is movably connected on slide block, while not carrying out laser reflection, support can be dismantled from slide block, install, use all very convenient.
As preferably, the convex surface prism that is positioned at laser incident place also comprises into light face, enters light face between two right angle faces of convex surface prism.This enters light face is mainly to make laser can incident enter this reflection cavity to reflect.
The present invention, owing to having adopted above technical scheme, has significant technique effect:
The present invention is by arranging convex surface prism in laser incident place and reflection place, form an open reflection cavity, general sieve prism is when playing reflex, can be by the laser beam compression of reflection, play contracting Shu Zuoyong, and make the optical axis of two convex surface prisms not in same level, guarantee that laser carries out multiple reflections in reflection cavity, decades of times strengthens laser energy number, then makes the faint light such as the fluorescence that is excited and Raman diffused light also be strengthened accordingly.
Accompanying drawing explanation
Fig. 1 is the structural representation of convex surface prism;
Fig. 2 is the structural representation of the laser reflection device based on convex surface prism;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is Fig. 2 laser reflection schematic diagram.
The toponym that in accompanying drawing, each number designation refers to is as follows: 1-convex surface prism, 101-end face, 102-right angle face, 103-arc convex, 104-connection plane, 201-guide rail, 202-slide block, 203-support, 204-governor motion, 205-picture frame, 206-groove, 207-projection, 208-enter light face.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Embodiment 1
Laser reflection device based on convex surface prism, as shown in Figure 2 and Figure 3, comprise guide rail 201, guide rail 201 is provided with two slide blocks 202, two slide blocks 202 lay respectively at incident place and reflection place of laser, on two slide blocks 202, are all fixed with support 203, also comprise two convex surface prisms 1, support 203 is provided with governor motion 204, and governor motion 204 is for regulating height and the angle of convex surface prism 1 and guide pass; Governor motion 204 is provided with picture frame 205, and picture frame 205 is for fixing convex surface prism 1; The distribution that is centrosymmetric of two convex surface prisms 1, arc convex 103 is relative; Two convex surface prisms 1 are 1mm with the difference in height of guide pass.
Slide block 202 can slide on guide rail 201, thereby the convenient length of adjusting reflection cavity between two convex surface prisms 1, governor motion 204 is for regulating height and the angle of convex surface prism and guide pass, can make the reflection angle of convex surface prism 1 reach best, make the relative position of convex surface prism 1 of incident place and reflection place in the best, by slide block 202 and the adjustment of reconciling mechanism 204, can strengthen to greatest extent the laser quantity in reflection cavity, the faint light such as the fluorescence that enhancing is excited and Raman diffused light.Governor motion is provided with picture frame, picture frame is for fixing convex surface prism, between the arc convex of convex surface prism and two right angle faces, is provided with and is connected plane, and this connection plane can be used as picture frame retaining part, can guarantee is not affecting under the prerequisite of prism result of use, to prism stablize, firm clamping.
And the convex surface prism 1 that is positioned at laser incident place also comprises into light face 208, enter light face 208 between two right angle faces of convex surface prism 1 102.
The plane of incidence of convex surface prism 1 is arc convex 103, can make this convex surface prism 1 when playing reflex, can be by the laser beam compression of reflection, play the effect of contracting bundle, so that in the enhancing of this short space inner laser energy decades of times, thereby make the faint light such as fluorescence that this space is excited and Raman diffused light have corresponding enhancing.
In addition, support 203 bottoms are provided with groove 206, and slide block 202 upper ends are provided with the projection 207 matching with support 203 bottom grooves 206.It is parallelogram that frame bottom is provided with groove, upper end of slide block projection is inverted trapezoidal, upper end of slide block projection snaps in frame bottom and is provided with inside grooves, can make being fixed on slide block of bracket stable, and support and slide block active link, while not carrying out laser reflection, support can be dismantled from slide block, be installed, use all very convenient.
Wherein convex surface prism, as shown in Figure 1, comprises two end faces 101, two right angle faces 102, two right angle faces 102 are mutually vertical, also comprise that an arc convex 103, two connect plane 104, and arc convex 103 and two right angle faces 102 are all between two end faces 101; Between arc convex 103 and two right angle faces 102, by two, be connected plane 104 and connect, the radius-of-curvature of arc convex 103 is 20mm.
And two right angle faces 102 are perpendicular to two end faces 101, the normal parallel of arc convex 103, in end face 101, makes prism reach best reflecting effect, and laser energy is strengthened to greatest extent.
Connecting plane 104 is 135 ° with the angle of right angle face 102.It is vertical with arc convex 103 that this angle connects plane, can make prism on support in steady state (SS), guarantee the nearest light harvesting effect of prism.
As shown in Figure 4, laser enters from the light face 208 that enters of the convex surface prism 1 of incident, laser enters the convex surface prism 1 of reflection place through the convex surface prism 1 of incident place, in the convex surface prism 1 of reflection place, after twice total reflection, penetrate, because the convex surface of the convex surface prism 1 of reflection place has the effect of contracting bundle, make laser through the symcenter place of two convex surface prisms, then enter to inject again the convex surface prism 1 at place, in the convex surface prism 1 of incident place after twice total reflection from the convex surface outgoing of this prism, same, because the convex surface of the convex surface prism 1 of reflection place also has contracting Shu Zuoyong, making also can be through the symcenter of two convex surface prisms from this prism convex surface emitting laser, move in circles like this, light beam chap gradually through symcenter place, and due to the size restrictions of convex surface prism, laser beam is tens of the short spaces through this symcenter place back and forth, the laser energy at this short space place is strengthened greatly.
Embodiment 2
With embodiment 1, difference is that two convex surface prisms 1 are 1mm with the difference in height of guide pass, and the radius-of-curvature of arc convex 103 is 15mm, and connecting plane 104 is 100 ° with the angle of right angle face 102.
Embodiment 3
With embodiment 1, difference is that two convex surface prisms 1 are 3mm with the difference in height of guide pass, and the radius-of-curvature of arc convex 103 is 30mm, and connecting plane 104 is 160 ° with the angle of right angle face 102.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (5)
1. convex surface prism, comprise two end faces (101), two right angle faces (102), it is characterized in that: two right angle faces (102) are mutually vertical, also comprise an arc convex (103), two connection planes (104), arc convex (103) and two right angle faces (102) are all positioned between two end faces (101); Between arc convex (103) and two right angle faces (102), by two, be connected plane (104) and connect, the radius-of-curvature of arc convex (103) is 15mm-30mm.
2. convex surface prism according to claim 1, is characterized in that: two right angle faces (102) are perpendicular to two end faces (101), and the normal parallel of arc convex (103) is in end face (101).
3. the laser reflection device based on convex surface prism, comprise guide rail (201), guide rail (201) is provided with two slide blocks (202), two slide blocks (202) lay respectively at incident place and reflection place of laser, on two slide blocks (202), be all fixed with support (203), it is characterized in that: also comprise two convex surface prisms (1) described in claim 1, support (203) is provided with governor motion (204), and governor motion (204) is for regulating height and the angle of convex surface prism (1) and guide pass; Governor motion (204) is provided with picture frame (205), and picture frame (205) is for fixing convex surface prism (1); Two convex surface prisms (1) distribution that is centrosymmetric, arc convex (103) is relative; Two convex surface prisms (1) are 1mm-3mm with the difference in height of guide pass.
4. the laser reflection device based on convex surface prism according to claim 3, it is characterized in that: support (203) bottom is provided with groove (206), and slide block (202) upper end is provided with the projection (207) matching with support (203) bottom groove (206).
5. the laser reflection device based on convex surface prism according to claim 3, it is characterized in that: the convex surface prism (1) that is positioned at laser incident place also comprises into light face (208), enter between two right angle faces that light face (208) is positioned at convex surface prism (1) (102).
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| CN201410279876.4A CN104076420B (en) | 2014-06-20 | 2014-06-20 | Convex surface prism and the laser reflection device based on convex surface prism |
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| CN201410279876.4A CN104076420B (en) | 2014-06-20 | 2014-06-20 | Convex surface prism and the laser reflection device based on convex surface prism |
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| CN104076420B CN104076420B (en) | 2017-06-06 |
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| CN101809494A (en) * | 2007-10-01 | 2010-08-18 | 松下电器产业株式会社 | Wavelength conversion laser device and image display device using the same |
| CN103094823A (en) * | 2013-01-29 | 2013-05-08 | 华中科技大学 | Excimer laser power oscillator resonant cavity based on frustrated total reflection |
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2014
- 2014-06-20 CN CN201410279876.4A patent/CN104076420B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02249955A (en) * | 1989-03-24 | 1990-10-05 | Hirama Rika Kenkyusho:Kk | Multiple times reflected light type absorptiometry |
| JP2007012981A (en) * | 2005-07-01 | 2007-01-18 | National Institute Of Information & Communication Technology | Laser with high reflective coating on interior total reflection surface of optical element |
| US20080095209A1 (en) * | 2006-09-21 | 2008-04-24 | Komatsu Ltd., | Laser device for exposure device |
| CN101809494A (en) * | 2007-10-01 | 2010-08-18 | 松下电器产业株式会社 | Wavelength conversion laser device and image display device using the same |
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Effective date of registration: 20171117 Address after: Green Ting Road Yuhang District Cang Qian street of Hangzhou city Zhejiang province 311121 No. 1 Building 3 room 492 Patentee after: FINDER DETECTION TECHNOLOGIES CO.,LTD. Address before: Yuhang District, Hangzhou City, Zhejiang Province, 311121 West Sea No. 998 Park Building No. 4 Room 401 Patentee before: ZHEJIANG CONVOLUTION SCIENCE & TECHNOLOGY CO.,LTD. |
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Granted publication date: 20170606 |