CN204085468U - A kind of Laser Autocollimator possessing laser beam direction function - Google Patents
A kind of Laser Autocollimator possessing laser beam direction function Download PDFInfo
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- CN204085468U CN204085468U CN201420551891.5U CN201420551891U CN204085468U CN 204085468 U CN204085468 U CN 204085468U CN 201420551891 U CN201420551891 U CN 201420551891U CN 204085468 U CN204085468 U CN 204085468U
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Abstract
The utility model discloses a kind of Laser Autocollimator possessing laser beam direction function, solve traditional autocollimator and can only adopt compared with weak light source to avoid high light to the problem of the interference of eyes or CCD detector.The utility model comprises laser instrument, the spectroscope set gradually along the Laser output light path of this laser instrument and collimation lens, and the CCD detector be positioned at above spectroscope, also comprise from lower to upper stretching distribution successively for locate graticule, for the optical filter of isolation laser and for imaging and with differentiation plate eyepiece; Described eyepiece is positioned at the below of CCD detector, described graticule be then positioned at spectroscopical directly over.The utility model is rational in infrastructure, designs ingenious, can play all functions of autocollimator completely, and realize the function of high brightness parallel laser positioning and guiding.
Description
Technical field
The utility model relates to a kind of Laser Autocollimator, and what be specifically related to is a kind ofly possess guide function and can launch the Laser Autocollimator of high power altogether light path collimated laser beam.
Background technology
Autocollimator is a kind of engineering surveying instrument demarcating straight line, is widely used in optical precision optical machinery industry at present, is gauging instrument indispensable in optical adjustment.The beam deflection that autocollimator utilizes the directional light of its own transmission to check optical element plane reflection to be measured to return, then images on the target surface of CCD detector, obtains material information, then realizes angle inspection and the origin reference location of optical element to be checked.
But, in order to avoid strong reflection is to the interference of human eye or CCD detector, conventional incandescent lights collimator and the light intensity of LASER Light Source collimator of rising gradually in recent years have all remained on a more weak Chengdu (, generally in 2mw level, the intensity of incandescent lamp also can be some more low for laser intensity).Cannot with the naked eye see in the environment that light beam after collimation is comparatively bright by day.This defect makes optical element location in the optical path become very inconvenient, simultaneously as during equipment benchmark because there is no visible laser as guiding, also make its function be limited by very large, cause the practicality of autocollimator to be greatly diminished.
Utility model content
For the deficiency of above-mentioned technology, the utility model provides a kind of Laser Autocollimator possessing laser beam direction function, CCD detector can be avoided to be subject to the interference of light laser, parasitic light and high intensity laser beam echo, guarantee that the power of Laser Autocollimator LASER Light Source is unrestricted, make it both can complete all functions of traditional collimator, the function of high brightness parallel laser positioning and guiding can be realized again.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of Laser Autocollimator possessing laser beam direction function, comprise laser instrument, the spectroscope set gradually along the Laser output light path of this laser instrument and collimation lens, and the CCD detector be positioned at above spectroscope, also comprise from lower to upper stretching distribution successively for locate roll adjustment graticule, for the optical filter of isolated light laser and for imaging and with differentiation plate eyepiece; Described eyepiece is positioned at the below of CCD detector, described graticule be then positioned at spectroscopical directly over.
Further, the light path place along described collimation lens injection laser beam is also provided with focus lamp.
As preferably, described laser instrument is high-power semiconductor laser.
Compared with prior art, the utility model has following beneficial effect:
(1) the utility model design is ingenious, rational in infrastructure, easy to use.
(2) the utility model is by arranging graticule, optical filter and eyepiece, when for realizing autocollimation function, the light beam that optical element to be checked reflects is via object lens, image in after dichroic mirror on graticule and position, then at light laser echo of decaying via optical filter, and after isolated parasitic light, by eyepiece differentiation plate and incide differentiation plate on echo laser imaging on the target surface of CCD detector, the process of weak mode is turned through this kind of light laser, the laser beam injected can be made CCD detector will to be caused to be in saturated state because luminosity is strong, eliminate the interference of high light to CCD detector well.
(3) the utility model is also provided with focus lamp, by focus lamp parallel laser focused on and be placed on (simulation far field) on the target surface of focal position, high power density laser after focusing excites target surface material to produce Raman diffused light, the Raman diffused light be inspired and the laser beam of reflection are reflected back focus lamp, collimation lens and spectroscope successively, and via spectroscope again catoptric imaging on graticule.Optical filter completely cuts off the laser that is reflected back and allows Raman scattering light transmission, through Raman diffused light be imaged onto on the target surface of CCD detector through eyepiece, owing to having completely cut off light laser, thus CCD detector also can not be in saturated state, therefore it had both achieved the function of far field positioning and guiding, can eliminate again the interference of high light equally.
(4) the utility model cost performance is high, practical and be convenient to mass production, and it is with a wide range of applications, and is therefore suitable for applying.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model-embodiment 1.
Fig. 2 is the principle of work schematic diagram of the utility model-embodiment 1.
Fig. 3 be the utility model-embodiment 1 for measuring optical element front and rear surfaces separation angle to be checked time, the schematic diagram of imaging on CCD detector target surface.
Fig. 4 is the structural representation of the utility model-embodiment 2.
Fig. 5 is the principle of work schematic diagram of the utility model-embodiment 2.
Fig. 6 is the schematic diagram of Raman diffused light imaging on CCD detector target surface that in the utility model-embodiment 2, far field target thing is excited.
Wherein, the parts name that Reference numeral is corresponding is called:
1-laser instrument, 2-spectroscope, 3-collimation lens, 4-graticule, 5-optical filter, 6-eyepiece, 7-CCD detector, 8-optical element to be checked, 9-focus lamp, 10-far field target thing.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, and embodiment of the present utility model includes but not limited to the following example.
Embodiment 1
The utility model provides a kind of new pattern laser autocollimator, and as shown in Figure 1, the present embodiment comprises laser instrument 1, spectroscope 2, collimation lens 3, graticule 4, optical filter 5, CCD detector 7 and the eyepiece 6 with differentiation plate.Described collimation lens 3 is arranged on the Laser output light path place of laser instrument 1, and described spectroscope 2 is then between laser instrument 1 and collimation lens 3.
Described graticule 4, optical filter 5, eyepiece 6 and CCD detector 7 be stretching distribution from lower to upper successively, and wherein, graticule 4 is positioned at directly over spectroscope 2, the light-emitting area of the strict corresponding laser instrument 1 of mirror image that the heart channel of Hang-Shaoyin spectroscope 2 is formed in its differentiation scale.
The structural design of the present embodiment can realize collimator guide function, for other optoelectronic device provides light path standard, and conveniently inserts various optical element in the optical path.Below the principle of work of the present embodiment is introduced, as described below:
As shown in Figure 2, laser instrument 1 Emission Lasers light beam, in the present embodiment, laser instrument 1 preferably adopts high-power semiconductor laser, and what it was launched is high-power laser beams.High-power laser beams, through spectroscope 2, is then injected in collimation lens 3, after being collimated by laser beam, forms a branch of parallel laser beam by this collimation lens 3, and directive optical element 8 to be checked.
Then, beam reflection is returned by optical element 8 surface to be checked, and the return laser beam returned focuses on through collimation lens, by spectroscope 2 catoptric imaging to the graticule 4 above it.Light beam continues directive optical filter 5, now, this optical filter 5 is by the light laser in light beam and parasitic light decay and completely cut off, then inject on the differentiation plate of eyepiece 6, eyepiece 6 is imaged onto differentiation plate and the laser tabula rasa imaged on differentiation plate on the target surface of CCD detector 7, then completes the measurement of the angular deviation α to optical element 8 front and rear surfaces to be checked.Shown in Fig. 3 two hot spot (stain in figure) is the laser of optics to be checked unit 8 front and rear surfaces reflection, because eyepiece 6 is with differentiation plate (being equivalent to the scale of eyepiece), therefore, according to the distance that this two bundles reflected light separates, the size of α can be calculated by the scale of differentiation plate display.
Embodiment 2
As shown in Figure 4,5, be with the difference of embodiment 1, the present embodiment is also provided with focus lamp 9, and it is positioned at far field target thing 10(such as packing case sidewall) and collimation lens 3 between, after parallel laser for being launched by collimation lens 3 focuses on, be injected on far field target thing 10.
The structural design of the present embodiment can do optical axis benchmark for miscellaneous equipment, and realize the function of far field guide-localization, its principle of work is as follows:
As shown in Figure 5, far field target thing 10 is positioned in the focus of focus lamp 9, laser instrument 1 Emission Lasers light beam, passed spectroscope 2, be then injected in collimation lens 3, after laser beam being collimated by this collimation lens 3, form a branch of parallel laser beam, and directive focus lamp 9.The laser beam of reception focuses on by focus lamp 9, form high power laser light, and directive is positioned at the far field target thing 10 in its focus.
After focusing on, light spot energy density is higher, and therefore, the molecule on target thing 10 surface, far field can be excited and produce inelastic scattering (i.e. Raman diffused light), and the Raman diffused light be excited is successively through focus lamp 9, collimation lens 3 and spectroscope 2.Spectroscope 2 by the beam reflection that receives to graticule 4 imaging above it.The hot spot of imaging is positioned by graticule 4, then directive optical filter 5, this optical filter 5 optical filter is by completely isolated for the laser beam received, Raman diffused light wherein then can penetrate optical filter 5, and be injected on the differentiation plate of eyepiece 6, finally be imaged onto on the target surface of CCD detector 7 by eyepiece 6, thus complete far field guide-localization function.As seen from Figure 6, Raman diffused light imaging (stain in figure) on CCD detector 7 target surface of far field target thing 10 surface generation.
The utility model have employed traditional collimating light pipe light path form, and launched by intense light source, collimation, light laser turns weak, light splitting, imaging mode, all functions of autocollimator that made it both possess, can realize again the function of long distance positioning guiding.The utility model is from structure, although not very complicated especially, but the position relationship design between each parts is quite ingenious, this is the structure based on the basis fully understood the various principle of optics designs, the principle of autocollimation and laser raman fully combines by it, makes the two mutually merge, thus has not only played autocollimatic advantage completely, make it not limited because of the power of LASER Light Source, but also achieve the function of high brightness parallel laser positioning and guiding.Therefore, compared with prior art, the utility model technical progress is obvious, and it has substantial feature and progress.
Above-described embodiment is only preferred two embodiments of the utility model; restriction not to the utility model protection domain; in every case design concept of the present utility model being adopted, and the change carried out non-creativeness work on this basis and make, all should belong within protection domain of the present utility model.
Claims (3)
1. one kind possesses the Laser Autocollimator of laser beam direction function, comprise laser instrument (1), the spectroscope (2) set gradually along the Laser output light path of this laser instrument (1) and collimation lens (3), and be positioned at the CCD detector (7) of spectroscope (2) top, it is characterized in that, also comprise from lower to upper stretching distribution successively for locate roll adjustment graticule (4), for the optical filter (5) of isolated light laser and for imaging and with differentiation plate eyepiece (6); Described eyepiece (6) is positioned at the below of CCD detector (7), and described graticule (4) is then positioned at directly over spectroscope (2).
2. a kind of Laser Autocollimator possessing laser beam direction function according to claim 1, is characterized in that, the light path place along described collimation lens (3) injection laser beam is also provided with focus lamp (9).
3. a kind of Laser Autocollimator possessing laser beam direction function according to claim 1 and 2, is characterized in that, described laser instrument (1) is high-power semiconductor laser.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420551891.5U CN204085468U (en) | 2014-09-25 | 2014-09-25 | A kind of Laser Autocollimator possessing laser beam direction function |
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| CN201420551891.5U CN204085468U (en) | 2014-09-25 | 2014-09-25 | A kind of Laser Autocollimator possessing laser beam direction function |
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| CN204085468U true CN204085468U (en) | 2015-01-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197865A (en) * | 2014-09-25 | 2014-12-10 | 成都玄武光电有限公司 | Laser auto-collimator with laser beam guide function and implementation method thereof |
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- 2014-09-25 CN CN201420551891.5U patent/CN204085468U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197865A (en) * | 2014-09-25 | 2014-12-10 | 成都玄武光电有限公司 | Laser auto-collimator with laser beam guide function and implementation method thereof |
| CN104197865B (en) * | 2014-09-25 | 2017-02-15 | 成都玄武光电有限公司 | Implementation method of laser auto-collimator with laser beam guide function |
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