CN1279388C - Optical interface method and device for optical instrument and external light source - Google Patents
Optical interface method and device for optical instrument and external light source Download PDFInfo
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- CN1279388C CN1279388C CN 200410099147 CN200410099147A CN1279388C CN 1279388 C CN1279388 C CN 1279388C CN 200410099147 CN200410099147 CN 200410099147 CN 200410099147 A CN200410099147 A CN 200410099147A CN 1279388 C CN1279388 C CN 1279388C
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- 230000003287 optical effect Effects 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000011514 reflex Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000002834 transmittance Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
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Abstract
An optical interface method and device for optical instrument and external light source features that based on the principle of locating a straight line at two points, a method for simplifying the alignment between optical instrument and external light source is disclosed. The optical path and the optical path difference between the external light source and the two positioning points are required to be as large as possible, and the relative position between the receiving screens where the two positioning points are located is kept unchanged, so that the light spots on the first receiving screen 13 and the second receiving screen 14 can obviously move due to the small change of the transmitting direction of the external light source, and the direction adjustment precision of the external light source is improved. The reflector moving on the precise guide rail is utilized to ensure that the device occupies small volume and is convenient to switch between the normal working state of the optical instrument and the alignment adjustment state of the external light source. The invention has the advantages that the external light source of the optical instrument can be accurately aligned with the internal light path of the optical instrument, the adjustment is convenient and the cost is low.
Description
Technical field:
The present invention relates to a kind of light path regulating method, specifically refer to a kind of method that optical instrument is aimed at external light source of simplifying.
Background technology:
Need inner light path is adjusted again after many optical instrument internal light path complexity that need external light source, optical instrument or external light source move, adjustment process is complicated and loaded down with trivial details.Thereby wish that the orientation have a kind of method can recover external light source easily makes its alignment optical instrument internal light path, the optical interface problem of Here it is optical instrument and external light source.
Usually the principle of employing two point location straight lines realizes the aligning of light path.A kind of optical interface solution commonly used is to adopt autocollimatic plate 4 to carry out the adjusting of light source azimuth.One side in the autocollimatic plate 4 is with reflection horizon (as shown in Figure 1), and external light source emitted light beams 1-2 enters inner light path through the light well 3 on the optical instrument shell.When optical instrument or external light source need when mobile, autocollimatic plate 4 is fixed on the light well 3 on the optical instrument shell, the facula position a of marker beam 1-2 on autocollimatic plate 4, this is first anchor point.Place a screen 5 that has aperture on the light path of light beam 1-2 again, the aperture on the order screen 5 is passed through by light beam 1-2 just.Light beam 1-2 is being radiated at after the reflection on the autocollimatic plate 4 on the screen 5, the position b of this light beam irradiates of mark on screen 5, and this is second anchor point.After mobile optical instrument or the external light source, at first guarantee to shield 5 and the relative position of optical instrument remain unchanged, thereafter the light beam that the orientation of adjusting external light source makes it is by shielding on the anchor point a that is radiated at behind the aperture on 5 on the autocollimatic plate 4, and the orientation of fine tuning external light source still is radiated on the anchor point b on the screen 5 autocollimatic plate 4 beam reflected more afterwards.Remove autocollimatic plate 4 and screen 5 at last, at this moment external light source is just basic has recovered original alignment.Can certainly adjust the situation of aligning by the orientation of regulating optical instrument.
The more easy optical interface method of another kind is with two blocks of narrow meshed plates (as shown in Figure 2), when needs mobile optical instrument or external light source, earlier narrow meshed plate 6 is fixed on the light well 3 of tool housing, makes external light source emitted light beams 1-2 pass aperture on the plate 6 just.On the light path of light beam 1-2, place a narrow meshed plate 7 again, make light beam 1-2 pass aperture on the plate 7 just.The relative position of data board 7 and plate 6.After mobile optical instrument or the external light source, the relative position of holding plate 7 and plate 6 is constant, the careful orientation of regulating light source or optical instrument makes the external light source emitted light beams simultaneously by the aperture on plate 6 and the plate 7, and at this moment external light source can recover alignment substantially.
Though above-mentioned two kinds of method costs are lower, also comparatively simple in the operation, all there is the problem that can not accurately recover light path.Because it is constant that the relative position of autocollimatic plate 4 and screen 5 relative positions and plate 6 and plate 7 is difficult to guarantee before and after moving, promptly the relative position of the receiving screen at two anchor point places is difficult to be maintained fixed.Even guaranteed their relative position, for improving alignment precision, the distance of plate 4 and screen 5 and the distance of plate 6 and plate 7 should keep enough big.But in fact the distance of external light source and optical instrument is also little usually, and this has also limited the raising of alignment precision.
In addition, also have and adopt optical fiber as the optical instrument optical interface, but this method is with high costs, and the aligning on fiber end face having relatively high expectations, also is complicated in the operation.
Summary of the invention:
The present invention on the principle basis of two point location straight lines, proposes a kind of method of regulating light path for solving the accurate alignment issues of light path of existing optical instrument and external light source.
It need satisfy following condition:
One, external light source is all big as far as possible to light path between two anchor points and optical path difference, can't significantly increase the instrument volume simultaneously.
Two, the relative position between the receiving screen at two anchor point places will remain unchanged.
Three, optical interface can be aimed at switching easily between the adjustment state in optical instrument normal operating conditions and external light source.
For satisfying three above conditions, we have designed optical interface scheme as shown in Figure 3.This cover optical interface system is made of following several parts: have the platform 8 of precise guide rail 9, be installed in first catoptron 10 on the guide rail slide block 15, semi-transparent semi-reflecting lens 12, the first receiving screens 13 and second receiving screen 14.First catoptron 10 remains on the position away from incident beam 1-2 when the optical instrument operate as normal.
Before mobile optical instrument or external light source, at first first catoptron 10 is moved on among the light beam 1-2, first catoptron 10 reflexes to light beam 1-2 on the semi-transparent semi-reflecting lens 12.To first receiving screen 13, another partly reflexes on second receiving screen 14 semi-transparent semi-reflecting lens 12 with a part of transmittance.The position of difference mark hot spot this moment on first receiving screen 13 and second receiving screen 14, this is anchor point a and b.
The reflection angle of first catoptron 10 and semi-transparent semi-reflecting lens 12 and semi-transparent semi-reflecting lens 12, the space distribution of each parts of instrument internal is depended in the position of first receiving screen 13 and second receiving screen 14, the principle one that need follow is to utilize the optical instrument internal space as far as possible, the 2nd, external light source all will be tried one's best greatly to the light path between first receiving screen 13 and second receiving screen 14, and two optical path difference also to try one's best greatly, this can make the minor alteration of external light source transmit direction cause that the hot spot on first receiving screen 13 and second receiving screen 14 produces tangible moving, thereby improves the orientation adjustment precision of external light source.
After mobile optical instrument or the external light source, the careful orientation of adjusting external light source or optical instrument makes incident beam be radiated at simultaneously on anchor point a and the b, catoptron is moved to afterwards on the position away from incident beam, the incident beam of external light source just can return to the alignment before moving comparatively accurately so again.
The position of anchor point a and b can be recorded in the instrument, because precise guide rail 9 has good repeatable accuracy, and first receiving screen 13 and second receiving screen 14 all be fixed on the instrument, thereby the position of anchor point a and b generally can not change, this has not only guaranteed bearing accuracy, and provides convenience for the operation of aiming at again next time.
The invention has the advantages that it can be with the inside light path of the comparatively accurate alignment optical instrument of the external light source of optical instrument, easy to adjust and cost is not high.
Description of drawings:
Fig. 1 is the optical interface synoptic diagram of existing use autocollimatic plate.
Fig. 2 is the optical interface synoptic diagram of two apertures of existing use.
Fig. 3 is an optical interface synoptic diagram of the present invention.
Embodiment:
The invention will be further described below in conjunction with accompanying drawing:
The optical interface method of a kind of optical instrument and external light source, it adopts following operation steps:
1) with platform 8, semi-transparent semi-reflecting lens 12, the first receiving screens 13 and second receiving screen 14 are fixed on optical instrument internal;
2) when the optical instrument operate as normal, first catoptron 10 remains on the position away from incident beam 1;
3) before mobile optical instrument or external light source, first catoptron 10 that at first will be installed on precise guide rail 9 and the slide block 15 moves on in the incident beam 1, and first catoptron 10 reflexes to incident beam 1 on the semi-transparent semi-reflecting lens 12; To first receiving screen 13, another partly reflexes on second receiving screen 14 semi-transparent semi-reflecting lens 12 with a part of transmittance; This moment, the light path of first catoptron, 10 front and back promptly constituted optical system for alignment, it comprises the light path between the external light source and first catoptron 10, light path between first catoptron 10 and the semi-transparent semi-reflecting lens 12, the light path between light path between the semi-transparent semi-reflecting lens 12 and first receiving screen 13 and semi-transparent semi-reflecting lens 12 and second receiving screen 14;
4) position of difference mark hot spot this moment on first receiving screen 13 and second receiving screen 14, this is anchor point A and B;
5) after mobile optical instrument or the external light source, the orientation of carefully adjusting external light source or optical instrument makes incident beam be radiated at simultaneously on anchor point A and the B;
6) catoptron is moved on the position away from incident beam 1, so far the incident beam of external light source can comparatively accurately return to the alignment before moving.
An alternative embodiment of the invention, its method of operating:
Remove first receiving screen 13 and second receiving screen 14, the light beam direct irradiation is in the inboard of optical instrument shell, with anchor point A and the direct mark of B inside the shell.
Another embodiment of the present invention, its method of operating:
Thereby come back reflective to increase light source to the light path of two anchor point A and B and second catoptron of optical path difference at the light beam that makes that increases on the optical system for alignment of optical interface more than one and.This can improve alignment precision, and optical instrument less for volume or that clearance spaces is less is more meaningful.
Another embodiment of the present invention, its method of operating:
In the optical system for alignment of optical interface before anchor point A and the B, place in order to improving alignment precision, light beam is gathered first condenser lens and second condenser lens on the anchor point.This has just dwindled the facula area on the anchor point, and has increased the hot spot brightness on the anchor point, makes the location more convenient and accurate.This is particularly important for the optical instrument that uses non-laser light source.
The optical interface device of an optical instrument of the present invention and external light source is made up of parts such as platform 8, the first receiving screens 13 and second receiving screens 14.Wherein, be fixed on the slide block 15 on the precise guide rail 9 on the platform 8, in incident beam 1, be provided with and incident light reflexed to first catoptron 10 on the semi-transparent semi-reflecting lens 12 and respectively a part of incident light reflexed on second receiving screen 14 and shine the semi-transparent semi-reflecting lens 12 on first receiving screen 13 and be positioned on the platform 8 through transmission, can make optical instrument when normal the use, first catoptron 10 be moved on to position away from incident beam 1, and aim at when regulating first catoptron 10 is moved on in the incident beam 1 precise guide rail 9 that repetitive positioning accuracy is higher and slide block 15.
Another embodiment of the optical interface device of optical instrument of the present invention and external light source, wherein: in the optical system for alignment of optical interface, make light beam come back reflective to increase light source to the light path of two anchor point A and B and second catoptron of optical path difference thereby be provided with one.
Another embodiment of optical interface device of optical instrument of the present invention and external light source, wherein: in optical system for alignment before anchor point A and the B, place in order to improving alignment precision, light beam is gathered first condenser lens and second condenser lens on the anchor point.
In sum, the invention has the advantages that it can be comparatively accurately right with the external light source of optical instrument The inside light path of accurate optical instrument, easy to adjust and cost is not high.
Claims (7)
1, the optical interface method of a kind of optical instrument and external light source is characterized in that adopting following operation steps:
1) with platform (8), semi-transparent semi-reflecting lens (12), first receiving screen (13) and second receiving screen (14) are fixed on optical instrument internal;
2) when the optical instrument operate as normal, first catoptron (10) remains on the position away from incident beam (1);
3) before mobile optical instrument or external light source, first catoptron (10) that at first will be installed on precise guide rail (9) and the slide block (15) moves on in the incident beam (1), and first catoptron (10) reflexes to incident beam (1) on the semi-transparent semi-reflecting lens (12); To first receiving screen (13), another partly reflexes on second receiving screen (14) semi-transparent semi-reflecting lens (12) with a part of transmittance; Light path before and after first catoptron this moment (10) promptly constitutes optical system for alignment, it comprises the light path between external light source and first catoptron (10), light path between first catoptron (10) and the semi-transparent semi-reflecting lens (12), the light path between light path between semi-transparent semi-reflecting lens (12) and first receiving screen (13) and semi-transparent semi-reflecting lens (12) and second receiving screen (14);
4) go up the position of mark hot spot this moment respectively at first receiving screen (13) and second receiving screen (14), this is anchor point A and B;
5) after mobile optical instrument or the external light source, the orientation of adjusting external light source or optical instrument makes incident beam be radiated at simultaneously on anchor point A and the B;
6) catoptron is moved on the position away from incident beam (1), so far the incident beam of external light source returns to the alignment before moving.
2, the optical interface method of optical instrument as claimed in claim 1 and external light source is characterized in that:
Remove first receiving screen (13) and second receiving screen (14), the light beam direct irradiation is in the inboard of optical instrument shell, with anchor point A and the direct mark of B inside the shell.
3, the optical interface method of optical instrument as claimed in claim 1 and external light source is characterized in that:
Come back reflective to increase light source at the light beam that makes that increases on the optical system for alignment of optical interface more than one and to the light path of two anchor point A and B and second catoptron of optical path difference.
4, the optical interface method of optical instrument as claimed in claim 1 and external light source is characterized in that:
In the optical system for alignment of optical interface before anchor point A and the B, place in order to improving alignment precision, light beam is gathered first condenser lens and second condenser lens on the anchor point.
5, adopt the optical interface device of optical instrument as claimed in claim 1 and external light source, by platform (8), first receiving screen (13) and second receiving screen (14) parts are formed, it is characterized in that being fixed on the slide block (15) on the precise guide rail (9) on the platform (8), in incident beam (1), be provided with and incident light reflexed to first catoptron (10) on the semi-transparent semi-reflecting lens (12) and respectively a part of incident light is reflexed to that second receiving screen (14) is gone up and shine the semi-transparent semi-reflecting lens (12) on first receiving screen (13) and be positioned on the platform (8) through transmission, can make optical instrument when normal the use, first catoptron (10) be moved on to position away from incident beam (1), and aim at when regulating first catoptron (10) is moved on in the incident beam (1) precise guide rail of resetting (9) and slide block (15).
6, the optical interface device of optical instrument as claimed in claim 5 and external light source, it is characterized in that: in the optical system for alignment of optical interface, make light beam come back reflective to increase light source to the light path of two anchor point A and B and second catoptron of optical path difference thereby be provided with one.
7, the optical interface device of optical instrument as claimed in claim 5 and external light source, it is characterized in that: in optical system for alignment before anchor point A and the B, placement is in order to improving alignment precision, and light beam is gathered first condenser lens and second condenser lens on the anchor point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410099147 CN1279388C (en) | 2004-12-28 | 2004-12-28 | Optical interface method and device for optical instrument and external light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410099147 CN1279388C (en) | 2004-12-28 | 2004-12-28 | Optical interface method and device for optical instrument and external light source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1658019A CN1658019A (en) | 2005-08-24 |
| CN1279388C true CN1279388C (en) | 2006-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410099147 Expired - Fee Related CN1279388C (en) | 2004-12-28 | 2004-12-28 | Optical interface method and device for optical instrument and external light source |
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| CN (1) | CN1279388C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103345065B (en) * | 2013-07-16 | 2015-12-09 | 江苏慧光电子科技有限公司 | Wearablely look squarely optical system |
| CN112666656A (en) * | 2020-12-15 | 2021-04-16 | 一诺仪器（中国）有限公司 | Maintenance-free welding machine and welding method thereof |
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Granted publication date: 20061011 Termination date: 20111228 |