CN1670473A - Adjustable autocollimator - Google Patents
Adjustable autocollimator Download PDFInfo
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- CN1670473A CN1670473A CN 200410039680 CN200410039680A CN1670473A CN 1670473 A CN1670473 A CN 1670473A CN 200410039680 CN200410039680 CN 200410039680 CN 200410039680 A CN200410039680 A CN 200410039680A CN 1670473 A CN1670473 A CN 1670473A
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- autocollimator
- adjustable
- light beam
- measured
- spectroscope
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Abstract
This invention relates to adjustable self-calibration device, which comprises one base socket, one light source, one first light splitter, one first light splitter, one second light splitter, one optical elements and one receiver, wherein, the light source and the first light splitter and the second one are located on the base socket; the optical element is movable located on the socket; the source outputs one beam through first light splitter to the second splitter through the second splitter to form one first splitter to the surface to be measured; the beam through the second splitter lens to form one second beam to the optical element to form parallel measurement beam to the first splitter beam through optical element.
Description
Technical field
The invention relates to a kind of adjustable autocollimator, particularly relevant for a kind of adjustable autocollimator that measures various sizes scope determinand.
Background technology
In general, autocollimator (autocollimator) is very useful instrument correcting device in commercial Application, and every relevant accurate angle measurement or linear datum measure the use that all need rely on autocollimator.The scope that autocollimator is used can be as small as and measures small beat, or big installation to second-mission aircraft wing and ships main shaft.
Consult Fig. 1, a known autocollimator 1 mainly includes a light source 11, a pin hole (pinhole) 12, a spectroscope 13, collimation lens 14 and a CCD receiver 16.When light that light source 11 is sent by behind the pin hole 12, pin hole 12 can be regarded as a pointolite and launch light beam L1 towards spectroscope 13, after light beam L1 reflects via spectroscope 13, can be with reference beam (not shown) directive CCD receiver 16, folded light beam L2 directive collimation lens 14, folded light beam L2 just can become collimated light beam L3 after by collimation lens 14, at this moment, collimated light beam L3 can be incident upon one to be measured surperficial 2, and reflected back collimation lens 14, and then become focused beam L4 via the focussing force of collimation lens 14, this focused beam L4 can penetrate spectroscope 13 and image on the CCD receiver 16, therefore, by observing reference beam (not shown) and focused beam L4 to be measured surperficial 2 imagings that reflex to CCD receiver 16, can judge surperficial 2 state to be measured from the difference of the position of imaging, similarly, autocollimator 1 also can be used for measuring the depth of parallelism between two different surfaces.
Yet, known autocollimator 1 can have a shortcoming, that is autocollimator 1 only can measure to be measured of certain limit, in other words, if to be measured scope is very big, autocollimator 1 just must use large-sized collimation lens 14, yet, use large-sized collimation lens 14 can increase the aperture (aperture) and the manufacturing cost of autocollimator 1, and also cause many inconvenience in the use.
In view of this, the objective of the invention is to provide a kind of adjustable autocollimator, not only can measure to be measured of various scopes, and its cost is comparatively cheap and be easy to use.
Summary of the invention
The present invention adopts as detailed below feature with in order to solve the above problems basically.That is to say that a purpose of the present invention is that a kind of adjustable autocollimator will be provided, is in order to measure a surface state to be measured.This adjustable autocollimator comprises a pedestal; One is arranged at the light source on this pedestal; One is arranged at first spectroscope on this pedestal; One is arranged at second spectroscope on this pedestal; One is arranged at the optical module on this pedestal movably, wherein, this light source export a light beam via this first spectroscope to this second spectroscope, and penetrate this second spectroscope to form one first divided beams to this to be measured, and this light beam forms one second divided beams to this optical module via this second spectroscope, and is parallel to a measurement light beam of this first divided beams to this to be measured by this optical module formation; And a receiver, be in order to this first divided beams that is received from this to be measured reflection and the image of this measurement light beam.
Simultaneously, according to above-mentioned purpose of the present invention, also be provided with one first slide rail on this pedestal, this optical module is to be arranged on this first slide rail.
Again according to above-mentioned purpose, observe for convenience from this first divided beams of this to be measured reflection and this image of this measurement light beam, this optical module has a reflecting surface of reflection one specific wavelength, makes to reflex to this this measurement light beam of to be measured via this optical module and be different from this first divided beams.
According to above-mentioned purpose, this reflecting surface is to form by plating mode again.
According to above-mentioned purpose, this optical module is for having a catoptron at 45 ° of pitch angle again.
According to above-mentioned purpose, this optical module is to be a pentagonal prism (penta-prisms) again.
According to above-mentioned purpose, this light source is to be a collimated light source again.
Again according to above-mentioned purpose, this collimated light source comprises a pointolite and collimation lens, and this collimation lens is with so that this light beam becomes a collimated light beam; And this pointolite to one first distance of this collimation lens equates that with a focal length of this collimation lens and this focal length also is equal to from the second distance of this collimation lens through this first spectroscope to image imaging place certainly; When this collimation lens of displacement,, equate with this focal length three to determine this first distance, this second distance by adjusting the relative position of this collimation lens, this first spectroscope and this pointolite.
According to above-mentioned purpose, also be provided with one second slide rail on this pedestal again, this second slide rail is to be provided with thereon in order to adjust this first distance and this second distance for this collimation lens, this first spectroscope.
According to above-mentioned purpose, this receiver is to be arranged at this image imaging place again.
Again according to above-mentioned purpose, one first index dial is to be arranged at this image imaging place, and this first index dial is in order to this image being provided coordinate with convenient observation, and this receiver is this image that receives through this first index dial.
According to above-mentioned purpose, also comprising a magnification eyepiece again, is to be arranged between this first index dial and this receiver, in order to amplify this image.
According to above-mentioned purpose, this pointolite comprises an asynchronous light source and one second index dial again, and this second index dial is in order to improving the precision of this image interpretation, and this first distance be for this second index dial certainly to this collimation lens.
According to above-mentioned purpose, this asynchronous light source is to be a bulb again.
According to above-mentioned purpose, this second index dial has a pin hole again.
According to above-mentioned purpose, this receiver is to be a display screen again.
According to above-mentioned purpose, this receiver is to be a Charged Coupled Device (CCD, Charge CoupledDevice) again.
Another object of the present invention is the method that a kind of measurement one surface state to be measured will be provided, and this method comprises the following steps: to provide a light source to form a light beam; Form one first divided beams to this to be measured from this light beam, and this light beam is told and is parallel to one of this first divided beams and measures extremely this to be measured of light beam certainly; And observe this first divided beams and this measurement light beam from an image of this to be measured reflection with definite this state of to be measured.
According to above-mentioned purpose, this first light beam is to be a collimated light beam again.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly also elaborates in conjunction with the accompanying drawings.
Description of drawings
Fig. 1 is the floor map that shows a known autocollimator;
Fig. 2 A is the schematic perspective view that shows adjustable autocollimator of the present invention;
Fig. 2 B is the schematic top plan view that shows according to Fig. 2 A; And
Fig. 3 is the running synoptic diagram that shows adjustable autocollimator of the present invention.
The reference numeral explanation:
1～autocollimator
2～surface to be measured
11,120～light source
12～pin hole
13～spectroscope
14,170～collimation lens
180～magnification eyepiece
16～CCD receiver
100～adjustable autocollimator
110～pedestal
111～the first slide rails
112～the second slide rails
113～the 3rd slide rails
114～chute
130～the first spectroscopes
140～the second spectroscopes
150～optical module
151～reflecting surface
160～receiver
175～the first index dials
185～the second index dials
186～pin hole
A, B～zone
L1, L
0, L
0 ', L
0 ", L
1, L
1 ', L
2, L
2 ', L
m, L
M ', L
M "～light beam
L2～folded light beam
L3～collimated light beam
L4～focused beam
L
1 ", L
2 "～focused beam
S～to be measured
Embodiment
Accompanying drawings preferred embodiment of the present invention now.
Consult Fig. 2 A and Fig. 2 B, adjustable autocollimator 100 of the present invention mainly includes a pedestal 110, a light source 120, one first spectroscope 130, one second spectroscope 140, an optical module 150, a receiver 160, collimation lens 170, one first index dial 175, a magnification eyepiece 180 and one second index dial 185.
Shown in Fig. 2 A and Fig. 2 B, pedestal 110 also has first slide rail 111, second slide rail 112, the 3rd slide rail 113 and chute 114.In the present embodiment, the 3rd slide rail 113 and chute 114 are for easy to operate and set up, if omit the purpose that the 3rd slide rail 113 and chute 114 also do not influence the present invention's creation.In the present embodiment, the light source 120 and second index dial 185 are slidably to be arranged on the 3rd slide rail 113, and simultaneously, light source 120, second index dial 185 and the 3rd slide rail 113 also are to slide on the chute 114.Among present embodiment, light source 120 can be an asynchronous light source, for example a bulb.
First index dial 175 also is slidably to be arranged on second slide rail 112, and first index dial 175 is to be interval in first spectroscope 130.First index dial 175 is in order to image is provided coordinate with convenient observation.
Be connected in magnification eyepiece 180, receiver 160 can be used to receive the image after magnification eyepiece 180 amplifies.In addition, receiver 160 can be a Charged Coupled Device (CCD, Charge Coupled Device) or a display screen.
185 of second index dials are slidably to be arranged on the 3rd slide rail 113, and are between first spectroscope 130 and light source 120.Second index dial 185 can be used to improve the precision of optical imagery interpretation, and second index dial 185 is to have a pin hole 186 or a slit; In the present embodiment, second index dial 185 only has a pin hole 186, and the light that pin hole 186 can make light source 120 be sent converts form directive first spectroscope 130 of pointolite to.
As mentioned above, when desire is used the state that adjustable autocollimator 100 measures to be measured (for example depth of parallelism between one to be measured depth of parallelism that goes up each point or different to be measured), can move earlier and adjust first spectroscope 130, second spectroscope 140, optical module 150, collimation lens 170, first index dial 175 and second index dial 185, make from pin hole 186 (second index dial 185) and equate with the focal length of collimation lens 170 through one first distance of first spectroscope 130 to collimation lens 170, and self-focus lens 170 is also equated with the focal length of collimation lens 170 through a second distance at first spectroscope, 130 to one image imaging places, it should be noted that at this, above-mentioned image imaging place promptly is the focal position of collimation lens 170, and first index dial 175 is to be arranged at this image imaging place.In addition, when needs displacements collimation lens 170, also can guarantee that the focal length three of first distance, second distance and collimation lens 170 is equal by adjusting the relative position of collimation lens 170, first spectroscope 130 and 185 of this second index dials.
Next the method that measures one to be measured S state with adjustable autocollimator 100 will be described.
Consult Fig. 3, at first, the light that light source 120 is sent is by can be with form directive first spectroscope 130 of pointolite behind the pin hole 186 of second index dial 185, below for ease of for the purpose of the explanation, the running of adjustable autocollimator 100 will be described in the mode that light beam is simplified.By the emitted light beam L of pin hole 186
0Can penetrate first spectroscope 130 partially and be reflected into a light beam L by first spectroscope 130 partially
0 'Then, light beam L
0 'After by collimation lens 170, can become a collimated light beam L
0 ", this collimated light beam L
0 "Can continue directive second spectroscope 140 again, at this, collimated light beam L
0 "Can penetrate second spectroscope 140 partially and become one first divided beams L
1, simultaneously, collimated light beam L
0 "Also can be become one second divided beams L by 140 reflections of second spectroscope
2Then, as shown in Figure 3, the first divided beams L
1Can be incident upon on the regional A of to be measured S, and the second divided beams L
2Then can continue to advance towards optical module 150 directions.Then, the second divided beams L
2Can be by optical module 150 reflect and become one and measure light beam L
m, and measure light beam L
mCan be incident upon on the area B of to be measured S.Specifically, this optical module 150 has a reflecting surface 151 of reflection one specific wavelength (for example red light wavelength), so measure light beam L
mBe light beam (for example ruddiness) for a specific wavelength, and can with the first divided beams L
1Difference is to some extent observed the first divided beams L1 that reflects to be measured S and is measured light beam L with convenient
m
As the first divided beams L
1After the regional A that is incident upon to be measured S went up, it can be reflected into a light beam L by regional A
1 ', this light beam L
1 'Can successively penetrate second spectroscope 140 and collimation lens 170 backs and become a focused beam L
1 ", then, this focused beam L
1 "Can penetrate first spectroscope 130 again and form one first focusedimage on first index dial 175.On the other hand, equivalent photometry bundle L
mAfter being incident upon on the area B of to be measured S, it can be reflected into a light beam L by area B
M ', this light beam L
M 'The face 151 that can be reflected again is reflected into a light beam L
M "Then, light beam L
M "Become a light beam L by 140 reflections of second spectroscope more again
2 ', this light beam L
2 'After penetrating collimation lens 170, can become another focused beam L
2 ", then, this focused beam L
2 "Can penetrate first spectroscope 130 again and form one second focusedimage on first index dial 175.
As mentioned above, by contrasting the position of first focusedimage and second focusedimage, can judge the depth of parallelism of to be measured S.In more detail, if first focusedimage and second focusedimage are to weigh together, this promptly represents not have between the regional A of to be measured S and the area B difference of the depth of parallelism.Otherwise, if first focusedimage separates with second focusedimage, then represent to have between the regional A of to be measured S and the area B difference of the depth of parallelism, and can judge depth of parallelism difference value between regional A and the area B by the coordinate values on first index dial 175.
In addition, be convenient observation first focusedimage and second focusedimage, magnification eyepiece 180 can amplify first focusedimage and second focusedimage earlier, and is received by receiver 160, then by the depth of parallelism difference that can more clearly judge on the receiver 160 between regional A and the area B.
In addition, adjustable autocollimator 100 of the present invention is not limited to only to measure one to be measured the depth of parallelism, that is to say, adjustable autocollimator 100 also can be used for measuring the depth of parallelism between Different Plane, its function mode and only needs that regional A is considered as different planes with area B and gets final product also as shown in Figure 3.
In addition, adjustable autocollimator 100 of the present invention also can not adopt first index dial 175 and magnification eyepiece 180, and directly receives first focusedimage and second focusedimage as long as receiver 160 is arranged at above-mentioned image imaging place.
In addition, more particularly, adjustable autocollimator 100 of the present invention also can not adopt collimation lens 170.In other words, under a situation, when the light beam that is sent from pin hole 186 or second index dial 185 promptly was a collimated light beam, it can measure one to be measured the depth of parallelism or the depth of parallelism between Different Plane equally.
In sum, the great advantage that adjustable autocollimator 100 of the present invention is had is that promptly it can be used to measure to be measured (especially large-scale face to be measured) of various scopes, and need not adopt large-sized collimation lens, so its manufacturing cost can greatly reduce, with and portably use can be more convenient.
Though the present invention is disclosed in preferred embodiment; yet it is not in order to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; certainly can do a little change and retouching, thus protection scope of the present invention should with claims of applying for a patent scope was defined is as the criterion.
Claims (19)
1. adjustable autocollimator, this adjustable autocollimator is in order to measure a surface state to be measured, and this adjustable autocollimator comprises:
One pedestal;
One is arranged at the light source on this pedestal;
One is arranged at first spectroscope on this pedestal;
One is arranged at second spectroscope on this pedestal;
One is arranged at the optical module on this pedestal movably, wherein, this light source export a light beam via this first spectroscope to this second spectroscope, and penetrate this second spectroscope to form one first divided beams to this to be measured, and this light beam forms one second divided beams to this optical module via this second spectroscope, and is parallel to a measurement light beam of this first divided beams to this to be measured by this optical module formation; And
One receiver, this receiver is in order to this first divided beams that is received from this to be measured reflection and an image of this measurement light beam.
2. adjustable autocollimator as claimed in claim 1 is characterized in that: also be provided with one first slide rail on this pedestal, this optical module is to be arranged on this first slide rail.
3. adjustable autocollimator as claimed in claim 1 is characterized in that: this optical module has a reflecting surface of reflection one specific wavelength, makes to reflex to this this measurement light beam of to be measured via this optical module and be different from this first divided beams.
4. adjustable autocollimator as claimed in claim 3 is characterized in that: this reflecting surface forms by plating mode.
5. adjustable autocollimator as claimed in claim 1 is characterized in that: this optical module is for having a catoptron at 45 ° of pitch angle.
6. adjustable autocollimator as claimed in claim 1 is characterized in that: this optical module is to be a pentagonal prism.
7. adjustable autocollimator as claimed in claim 1 is characterized in that: this light source is to be a collimated light source.
8. adjustable autocollimator as claimed in claim 7 is characterized in that: this collimated light source comprises a pointolite and collimation lens, and this collimation lens is with so that this light beam becomes a collimated light beam; And this pointolite to one first distance of this collimation lens equates that with a focal length of this collimation lens and this focal length also is equal to from the second distance of this collimation lens through this first spectroscope to image imaging place certainly; When this collimation lens of displacement,, equate with this focal length three to determine this first distance, this second distance by adjusting the relative position of this collimation lens, this first spectroscope and this pointolite.
9. adjustable autocollimator as claimed in claim 8 is characterized in that: also be provided with one second slide rail on this pedestal, this collimation lens, this first spectroscope are to be arranged on this second slide rail, with convenient this first distance and this second distance of adjusting.
10. adjustable autocollimator as claimed in claim 8 is characterized in that: this receiver is to be arranged at this image imaging place.
11. adjustable autocollimator as claimed in claim 8 is characterized in that: one first index dial is to be arranged at this image imaging place, and this first index dial is in order to provide coordinate to this image, to observe this image with convenient from this receiver.
12. adjustable autocollimator as claimed in claim 11 is characterized in that: also comprise a magnification eyepiece, this magnification eyepiece is arranged between this first index dial and this receiver, in order to amplify this image.
13. adjustable autocollimator as claimed in claim 8, it is characterized in that: this pointolite comprises an asynchronous light source and one second index dial, this second index dial is in order to improving the precision of this image interpretation, and this first distance be for this second index dial certainly to this collimation lens.
14. adjustable autocollimator as claimed in claim 13 is characterized in that: this asynchronous light source is to be a bulb.
15. adjustable autocollimator as claimed in claim 13 is characterized in that: this second index dial has a pin hole.
16. adjustable autocollimator as claimed in claim 1 is characterized in that: this receiver is to be a display screen.
17. adjustable autocollimator as claimed in claim 1 is characterized in that: this receiver is to be a Charged Coupled Device.
18. a method that measures a surface state to be measured comprises the following steps:
Provide a light source to form a light beam;
Form one first divided beams to this to be measured from this light beam, and this light beam is told and is parallel to one of this first divided beams and measures extremely this to be measured of light beam certainly; And
An image of observing oneself this to be measured the reflection of this first divided beams and this measurement light beam is to determine this state of to be measured.
19. the method for measurement one surface state to be measured as claimed in claim 18 is characterized in that: this first light beam is to be a collimated light beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410039680 CN1670473A (en) | 2004-03-16 | 2004-03-16 | Adjustable autocollimator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410039680 CN1670473A (en) | 2004-03-16 | 2004-03-16 | Adjustable autocollimator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1670473A true CN1670473A (en) | 2005-09-21 |
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ID=35041823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410039680 Pending CN1670473A (en) | 2004-03-16 | 2004-03-16 | Adjustable autocollimator |
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| Country | Link |
|---|---|
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620654A (en) * | 2012-03-30 | 2012-08-01 | 中国科学院长春光学精密机械与物理研究所 | Automatic detecting method of grating scale casing angle distortion and distortion correcting device |
| CN102159921B (en) * | 2008-10-21 | 2012-12-26 | 株式会社索佳拓普康 | Manual type surveying instrument having collimation assisting device |
| CN106216440A (en) * | 2016-09-09 | 2016-12-14 | 西安交通大学 | A kind of aero-engine main shaft Intelligent Measurement corrector |
| CN109668527A (en) * | 2019-03-01 | 2019-04-23 | 珠海博明视觉科技有限公司 | A kind of adjustable optical-autocollimator |
-
2004
- 2004-03-16 CN CN 200410039680 patent/CN1670473A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102159921B (en) * | 2008-10-21 | 2012-12-26 | 株式会社索佳拓普康 | Manual type surveying instrument having collimation assisting device |
| CN102620654A (en) * | 2012-03-30 | 2012-08-01 | 中国科学院长春光学精密机械与物理研究所 | Automatic detecting method of grating scale casing angle distortion and distortion correcting device |
| CN106216440A (en) * | 2016-09-09 | 2016-12-14 | 西安交通大学 | A kind of aero-engine main shaft Intelligent Measurement corrector |
| CN109668527A (en) * | 2019-03-01 | 2019-04-23 | 珠海博明视觉科技有限公司 | A kind of adjustable optical-autocollimator |
| CN109668527B (en) * | 2019-03-01 | 2024-02-13 | 珠海博明视觉科技有限公司 | Adjustable optical auto-collimator |
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