CN101738719B - Accessorized high magnification collimating eyepiece - Google Patents
Accessorized high magnification collimating eyepiece Download PDFInfo
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- CN101738719B CN101738719B CN 200810179147 CN200810179147A CN101738719B CN 101738719 B CN101738719 B CN 101738719B CN 200810179147 CN200810179147 CN 200810179147 CN 200810179147 A CN200810179147 A CN 200810179147A CN 101738719 B CN101738719 B CN 101738719B
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Abstract
The invention belongs to an auto-collimation measuring device of a total station and an ordinary transit, in particular relating to a high magnification collimating eyepiece. The high magnification collimating eyepiece of the invention has the advantages that two meniscuslens eyelevel fields are added in a light path to obtain clear images, and a focusing wheel can be easily adjusted to a clear position. As a cross-shaped diaphragm is added, the background light is weakened obviously, thus eyestrain of operators can not be caused easily, and the contrast ratio is higher, and returning images can be easily found. The magnification is higher, when a 30-time eyepiece is used and a divided plate is in a single-double line structure, a two-image singlet line and a double-line are utilized for aligning, and the alignment error is 0.3''. When the divided plate is single line, as the alignment of the two black lines is in a disadvantageous alignment mode, the alignment error is 0.9''; the collimating eyepiece has small and exquisite structure, and can not damage the balance of a telescope to the horizontal axis of an instrument.
Description
Technical field
The invention belongs to the self-collimation measurement device of a kind of total powerstation, plain transit, be specifically related to a kind of high magnification collimating eyepiece.
Background technology
Total powerstation, plain transit be not owing to have collimator apparatus; Therefore can not be used for looking for its telescope optic axis and reflective mirror vertical; Promptly can not carry out " autocollimation " measures; This makes the usable range of these instruments, and particularly the use at industrial sector is very limited, and solution mainly contains two kinds at present:
1, repacking instrument.The change telescope configuration increases Amici prism, and collimation graticule and light source are adapted as autocollimatic value telescope to the conventional telescope of instrument.The shortcoming of this scheme is that the repacking of exact instrument will be passed through strict examining; And owing to installed Amici prism additional; Telescopical brightness will descend 50%, thereby when measuring without the autocollimatic value, telescopical performance will descend; Owing to need install the collimation graticule additional, therefore be " have graduation board-like " eyepiece.
2, increase annex.Be designed to removable annex to the collimation eyepiece, unload former telescope ocular, load onto the collimation eyepiece and can carry out " autocollimatic value " measurement, need not reequip instrument, need not change former telescope performance.Need not calibrate behind the loading and unloading collimation eyepiece, the gap of collimation eyepiece and telescope mechanical splice does not cause error, belongs to " no graduation is board-like " eyepiece.Switzerland Leica company is the important factory of total powerstation and electronic theodolite; The annex collimation eyepiece of being produced is called " eyepiece fast "; Its shortcoming is in order spectroscope to be installed, have been adopted the eyepiece than long-focus, and promptly the magnification of used eyepiece is lower; Only surplus in the of ten times, thereby the line error is increased when the autocollimatic value is measured.
Summary of the invention
The purpose of this invention is to provide a kind of annexization, high magnification collimating eyepiece that can make total powerstation, plain transit have the autocollimation function and improve alignment error.
The present invention realizes like this; Annexization, high magnification collimating eyepiece, it comprises the eyepiece group, on the optical path direction of eyepiece group, is provided with microcobjective group and Amici prism successively; Eyepiece group and microscope group all are located in the housing; The bottom of Amici prism and illuminating prism bonding, the outside of illuminating prism is provided with green diode, and green diode is connected with switch.
The microscope group comprises microcobjective, and the both sides of microcobjective are equipped with meniscus lens.
Between green diode and illuminating prism, be provided with frosted glass and cruciform diaphragm.
Advantage of the present invention is, in light path, added two meniscus lens and looked squarely the field so that can obtain clearly as, and focus to take turns and can be prone to transfer to clear position.Owing to added the cruciform diaphragm, bias light obviously weakens, and is difficult for causing operator's eye fatigue, has higher contrast ratio, and look for return as the time be more prone to.Have higher magnification, when with 30 times of eyepieces, when graticule was single double structure, the single line of available two pictures was aimed at two-wire, and alignment error is 0.3 ＂.When graticule is single line and since the aligning of two black lines be disadvantageous be 0.9 ＂ to linear formula alignment error, the small and exquisite balance of telescope of can not destroying of the structure of collimation eyepiece to the instrument transverse axis.
Description of drawings
Fig. 1 is annexization provided by the present invention, high magnification collimating eyepiece synoptic diagram;
Fig. 2 is annexization provided by the present invention, high magnification collimating eyepiece index path;
Fig. 3 is not for adding the curvature of field curve map of meniscus lens;
Fig. 4 is the curvature of field curve map that adds meniscus lens.
Among the figure, 1 adapter sleeve, 2 electrodes, 3 housings, 4 batteries, 5 eyepiece groups, 6 microcobjective groups, 7 switches, 8 green diodes, 9 frosted glass, 10 cruciform diaphragms, 11 Amici prisms, 12 illuminating prisms, 13 microcobjectives, 14 meniscus lens, 15 graticules.
Embodiment
Describe the present invention below in conjunction with accompanying drawing:
Annexization, high magnification collimating eyepiece; It comprises eyepiece group 5; On the optical path direction of eyepiece group 5, be provided with microcobjective group 6 and Amici prism 11 successively, eyepiece group 5 all is located in the housing 3 with microscope group 6, the bottom of Amici prism 11 and illuminating prism 12 bondings; The outside of illuminating prism 12 is provided with green diode 8, and green diode 8 is connected with switch 7.Microscope group 6 comprises microcobjective 13, and the both sides of microcobjective 13 are equipped with meniscus lens 14.Between green diode 8 and illuminating prism 12, be provided with frosted glass 9 and cruciform diaphragm 10.
The index path of collimation eyepiece, as shown in Figure 2.Be characterized in showing speck mirror 13 the groove in kind of eyepiece graticule 15 with 30; And when focusing to the infinite distance; Itself the groove picture that is formed by the reflective mirror return light images on the sightingpiston of eyepiece group 5 simultaneously; Have enough spaces that Amici prism 11 is installed like this, and eyepiece group 5 can be used 30 times or the eyepiece of high-amplification-factor more, therefore can reach high magnification.The light that green diode 8 sends passes through cruciform diaphragm 10, frosted glass 9, and illuminating prism 12 and Amici prism 11 illuminate eyepiece graticule 15; Behind telescopical focusing lens and object lens; Become parallel light emergence, no collimation graticule 15 on the collimation eyepiece, so do not have the COINCIDENCE PROBLEMS of two graticules; The gap of mechanical splice can not cause error, therefore meets the requirement of annexization.Adopt illuminating prism 12; And to compose one to illuminating prism 12 and Amici prism 11 be for compact conformation; Reduce the physical dimension and the quality of collimation eyepiece; Thereby alleviate telescopical load, and destroy the balance of telescope to the instrument transverse axis, adopting green glow is in order to improve the comfortableness of visualization.Because the groove of eyepiece graticule is very thin, and is bright field black line structure, have sizable technical difficulty solution to be can observe the autocollimation picture that is formed by return light clearly in the eyepiece:
1, improves the matter that resembles of microcobjective;
2, reduce bias light and improve contrast;
3, can be easily look like itself autocollimatic value of the groove in kind of eyepiece graticule and backspace to transfer on the same plane, could guarantee that like this groove in kind and its autocollimation picture are clear equally, be convenient to both alignings.
Improve 1 show the speck mirror the matter that resembles, mainly be to have added two meniscus lens 14, Fig. 3 30 shows the curvature of field curve of speck mirror, can find out, add meniscus lens 14 after, the curvature of field obviously reduces, and resembles matter and obviously improves.Except that design factor, on the technology end face of meniscus lens will with the cylindrical grinding that once is installed, with as installation base surface, otherwise fabrication error will make the matter that resembles of object lens significantly descend the substantial deviation design load.
Bias light is a serious problem, and the contrast that it has not only reduced the autocollimation picture causes the line difficulty, but also meeting stimulation applications person's eyes cause the operator tired.Bias light causes that by the internal reflection of collimation eyepiece optical system as shown in Figure 2, the reflection of Amici prism A face and B face, the reflection of two faces of eyepiece graticule all can make green glow directly get into eyepiece, causes bias light.To subdue reflection, the A face plates the green glow anti-reflection film to warp Amici prism B face sanding blacking, but bias light is still very strong; It is former because eyepiece graticule is a bright visual field black line structure, in order to illuminate black cross curve, needs all to illuminate the clear aperture of whole graticule; The area that illuminates is big, therefore forms stronger bias light, and solution is to increase a cruciform diaphragm; Diaphragm is used the duralumin manufacturing, and through black anodizing, end face is opened the logical light slit of cruciform of wide 0.5mm; What add that light source illuminates behind the light hurdle only is the groove district of eyepiece graticule, and the light at all the other positions is all blocked by the light hurdle, will not illuminate; Thereby bias light is significantly reduced, improved contrast, reduced bias light operator's stimulating eyes.
The collimation eyepiece need rotate eyepiece to observed eyepiece graticule groove in kind and resemble the most clearly when using, rotate telescopical focusing wheel again and make autocollimation image position that return light forms on the delineation face of eyepiece graticule, thereby two groove pictures are clear equally; Could accurately aim at like this; The problem that produces is that focusing goes to autocollimation as clear position very difficulty, only goes to that certain is a bit just clear, slightly changes or fewly changes a bit just unintelligible; And the focusing wheel has backhaul poor; Be difficult to go to articulation point, this causes very big difficulty to use, and its reason is one to show the too little about 0.017mm of the object space depth of field of speck mirror.Therefore one show the optical design of speck mirror and need calculate and increase its object space depth of field, can reach this effect simultaneously after adding meniscus lens, the object lens among Fig. 1, its object space depth of field is 0.071mm, thereby goes to autocollimation to focusing as articulation point than being easier to.
Beneficial effect of the present invention is following:
1, in optical system, added two meniscus lens and looked squarely the field so that can obtain clearly as, and focus to take turns and can be prone to transfer to clear position.
2, owing to added " cruciform " diaphragm, bias light obviously weakens, and is difficult for causing operator's eye fatigue, has higher contrast ratio, and look for return as the time be more prone to.
3, have higher magnification, when with 30 times of eyepieces, when graticule was single double structure, the single line of available two pictures was aimed at two-wire, and alignment error is 0.3 ＂.When graticule is single line and since the aligning of two black lines be disadvantageous be 0.9 ＂ to linear formula alignment error,
4, the small and exquisite balance of telescope of can not destroying of the structure of collimation eyepiece to the instrument transverse axis.
Because the enlargement ratio of microcobjective is 30 times, its optical system adopts symmetrical structure, makes field stop be placed on the center.Because required visual field and relative aperture are bigger,, make complex system add two meniscus lens simultaneously, through having obtained the satisfied matter that resembles after the global optimization for reducing off-axis aberration.
Method of application of the present invention is following:
During use unload former total powerstation or transit eyepiece, adapter sleeve 1 is contained on the instrument.Regulate eyepiece group 5; Make it can see the graticule of instrument clearly; Open switch 7 reflective mirror that aims at the mark, can be relatively easy to observe the picture that returns of cruciform diaphragm, adjust focusing lens once more through the focusing lens of regulating former instrument; Up to observe the instrument graticule return picture till, carry out the autocollimatic value and measure.
Claims (3)
1. annexization, high magnification collimating eyepiece; It comprises housing (3), and eyepiece group (5) is provided with microcobjective group (6) and Amici prism (11) successively on the optical path direction of eyepiece group (5); It is characterized in that: eyepiece group (5) all is located in the housing (3) with microscope group (6); The bottom of Amici prism (11) and illuminating prism (12) bonding, the outside of illuminating prism (12) is provided with green diode (8), and green diode (8) is connected with battery (4) through switch (7).
2. annexization as claimed in claim 1, high magnification collimating eyepiece is characterized in that: microscope group (6) comprises microcobjective (13), and the both sides of microcobjective (13) are equipped with meniscus lens (14).
3. according to claim 1 or claim 2 annexization, high magnification collimating eyepiece is characterized in that: between green diode (8) and illuminating prism (12), be provided with frosted glass (9) and cruciform diaphragm (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810179147 CN101738719B (en) | 2008-11-27 | 2008-11-27 | Accessorized high magnification collimating eyepiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810179147 CN101738719B (en) | 2008-11-27 | 2008-11-27 | Accessorized high magnification collimating eyepiece |
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| Publication Number | Publication Date |
|---|---|
| CN101738719A CN101738719A (en) | 2010-06-16 |
| CN101738719B true CN101738719B (en) | 2012-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200810179147 Active CN101738719B (en) | 2008-11-27 | 2008-11-27 | Accessorized high magnification collimating eyepiece |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB486851A (en) * | 1936-12-11 | 1938-06-13 | Richard Edmund Reason | Improvements in or relating to sighting telescopes |
| CN2288418Y (en) * | 1996-04-17 | 1998-08-19 | 中国计量科学研究院 | Synthetic check meter for transit |
| CN2392165Y (en) * | 1999-09-30 | 2000-08-16 | 苏州一光仪器有限公司 | Laser theodolite |
| CN2606337Y (en) * | 2003-03-25 | 2004-03-10 | 武汉大学 | Gyrotheodolites with laser calibrators |
| CN2612962Y (en) * | 2003-05-21 | 2004-04-21 | 中国科学院西安光学精密机械研究所 | Optical system for autocollimator |
-
2008
- 2008-11-27 CN CN 200810179147 patent/CN101738719B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB486851A (en) * | 1936-12-11 | 1938-06-13 | Richard Edmund Reason | Improvements in or relating to sighting telescopes |
| CN2288418Y (en) * | 1996-04-17 | 1998-08-19 | 中国计量科学研究院 | Synthetic check meter for transit |
| CN2392165Y (en) * | 1999-09-30 | 2000-08-16 | 苏州一光仪器有限公司 | Laser theodolite |
| CN2606337Y (en) * | 2003-03-25 | 2004-03-10 | 武汉大学 | Gyrotheodolites with laser calibrators |
| CN2612962Y (en) * | 2003-05-21 | 2004-04-21 | 中国科学院西安光学精密机械研究所 | Optical system for autocollimator |
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| Publication number | Publication date |
|---|---|
| CN101738719A (en) | 2010-06-16 |
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