CN2653437Y - Laser centring device - Google Patents
Laser centring device Download PDFInfo
- Publication number
- CN2653437Y CN2653437Y CN 03255088 CN03255088U CN2653437Y CN 2653437 Y CN2653437 Y CN 2653437Y CN 03255088 CN03255088 CN 03255088 CN 03255088 U CN03255088 U CN 03255088U CN 2653437 Y CN2653437 Y CN 2653437Y
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- China
- Prior art keywords
- laser
- lens
- centering
- optical axis
- angle prism
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- Expired - Fee Related
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Abstract
The utility model relates to a laser centering device, comprising an objective lens, an eyepiece lens and a laser transmitter; the optic axes of the objective lens and the eyepieces lens are mutually vertical; the laser transmitter is arranged at one side of the optic axis of the eyepieces lens, and a first rectangular prism is arranged on the optic axis of the eyepieces lens to reflect the laser generated by the laser transmitter on the optic axis of the eyepieces lens; a cross reticule is arranged between the first rectangular prism and the eyepieces lens, and the cross reticule is placed on the optic axis of the eyepieces lens; a laser marking plate is arranged between the first rectangular prism and the laser transmitter; a second rectangular prism is arranged to reflect the reflected laser on the optic axis of the objective lens; and a plane glass is arranged below the objective lens. Due to the above structure, the utility model can conveniently, rapidly and precisely realize the centering of the device. And the utility model enables the user to carry out the centering operation both with the approach of normal optical centering and laser centering.
Description
Technical field
The utility model relates to a kind of energy and fast, conveniently reaches the laser alignment device that makes surveying instrument centering exactly.
Background technology
Centering is the intersection point of the optical axis, transverse axis and the vertical pivot that make surveying instrument in the mapping operations, is on same the pedal line with the center of surface mark, so that the measurement result of surveying instrument is delivered to surface mark.The main method of conventional centering has two kinds: plumb bob centering method and optical centering device method.Plumb bob centering is on the vertical line of the vertical pivot below the surveying instrument, with plumb bob of rope hanging, when the center of plumb bob overlaps with the center of surface mark, just finished the centering of instrument, this centering method is owing to be vulnerable to the influence of wind-force, and plumb bob can not settle out fast, makes the centering inconvenience, and accuracy of alignment is poor.During optical centering device centering, operator's eyes need be observed the situation of centering by the optical centering device eyepiece, and according to deviation adjustment surveying instrument, but when adjusting surveying instrument, operator's eyes need to leave the eyepiece of optical centering device again, and adjust and carry out repeatedly, this just makes medium velocity is reduced.
Existing laser alignment device has four kinds.
First kind is: at transit, total powerstation, GPS or observe open on the vertical pivot sidewall of board one with the axial vertical laser alignment device installation cavity of vertical pivot, a right angle optical reflection prism is installed in its inner end, the edged surface always that makes the optical reflection prism is downwards over against the vertical pivot center bore, another right angle face is over against the centralizer installation cavity, the laser alignment device is packed in the inlet portion of installation cavity, make its adjusting screw be in the outside, a kind of centering mode of formation.When laser beam overlaps with the center of surface mark, the centering of just having finished instrument, this centering method is owing to being the centrally aligned that makes laser beam spots and surface mark, so alignment precision is restricted.
Second kind is: a centralizer support that the laser alignment device is housed is fixed in the upper surface at the telescope transverse axis support of transit, total powerstation, the laser alignment device is installed in the support midpoint, make laser beam and instrument vertical pivot on same axis, a kind of centering mode that the beam outlet of laser alignment device is directed downwards.When laser beam by telescope and vertical pivot, when overlapping, just finished the centering of instrument with the center of surface mark.When this centering method did not overlap with the vertical pivot axis direction fully when telescopical optical axis direction, the spot center that laser beam is passed through to form on the ground behind the telescope made the centering result produce than obvious errors not on the vertical line at vertical pivot place, influences accuracy of alignment.
The third is: at the upper position of the telescope transverse axis support transverse axis of transit, total powerstation, a laser alignment device is installed, make laser alignment device and telescope constitute one, the light beam that laser instrument sends, instrument transverse axis, telescope optic axis are vertical mutually, constitute a kind of centering mode.Pass through the instrument axis when laser beam, when overlapping, just finished the centering of instrument with the center of surface mark.This centering method is when telescopical optical axis is not on surface level, and the spot center that laser beam forms on the ground makes the centering result produce than obvious errors not on the vertical line at vertical pivot place, influences accuracy of alignment.(above three kinds of centering modes are with reference to utility model patent: the patent No.: 01209145.6)
The 4th kind is: generating laser is connected to ocular head by hinge axis, when laser beam overlaps with the center of surface mark by the hot spot that forms on the ground behind original optics centralising device, just finished the centering of instrument, because generating laser is connected to ocular head by hinge axis, can not guarantee to make laser beam accurately to overlap with the eyepiece optical axis, the spot center that laser beam forms on the ground makes the centering result produce than obvious errors not on the vertical line at vertical pivot place, influences accuracy of alignment.(this centering method is with reference to utility model patent: the patent No.: 01228491.2)
Summary of the invention
In order to overcome the operation inconvenience that above-described conventional centering and existing laser alignment mode exist and the problem of centering poor accuracy, the utility model provides the laser alignment device of the convenient, fast and accurate realization measuring instrument of a kind of energy centering.
The purpose of this utility model is achieved in that a kind of laser alignment device, comprise objective lens, eyepiece lens, generating laser, the optical axis of objective lens and eyepiece lens is vertical mutually, generating laser is positioned at a side of eyepiece lens optical axis, the optical axis of eyepiece lens is provided with the generating laser emitted laser is reflected in first right-angle prism on the optical axis of eyepiece lens, be provided with the crosshair graticule between first right-angle prism and the eyepiece lens, the crosshair graticule is positioned on the optical axis of eyepiece lens, is provided with the laser marker plate between first right-angle prism and the generating laser; Be provided with second right-angle prism of the laser-bounce after the above-mentioned reflection to the objective lens optical axis, the below of objective lens is provided with sheet glass.
Above-mentioned marking plate is a light-passing board, is shaped on lighttight cross sign on the marking plate, and the center of cross sign overlaps with the laser beam axis center.
Be coated with the filter coating that used optical maser wavelength is had the strong reflection effect on the inclined-plane of above-mentioned first right-angle prism.
The utility model also is provided with the corrector of adjusting generating laser, and corrector is made up of the body of fixed laser transmitter and two groups of adjusting screws and spring; One group of adjusting screw and spring are positioned at the both sides of generating laser surface level, and another group adjusting screw and spring are positioned at the vertical both sides of generating laser.
When the utility model uses, be installed in common transit, total powerstation, GPS or observe on the base of board.Make the optical axis of eyepiece lens parallel with surface level; The optical axis of objective lens is vertical with surface level.Generating laser can be adjusted the direction of the light beam of generating laser by corrector.Adjusting two adjusting screws can make the direction of the light beam of generating laser be adjusted accordingly respectively, thereby laser beam optical axis with eyepiece lens in surface level that generating laser is sent is vertical, and the center of cross sign is overlapped with the center of crosshair graticule.The laser that generating laser sends sees through the light beam that there is cross shade at marking plate formation center, this light beam arrives the inclined-plane of first right-angle prism, after the reflection of the inclined-plane of this right-angle prism, arrive the inclined-plane of second right-angle prism along the optical axis of eyepiece lens, again through the reflection of the inclined-plane of second right-angle prism after objective lens, sheet glass arrive the surface mark place.The laser pattern by cross shade is arranged and the relation at surface mark center just can make things convenient for and carry out centering exactly.The laser part that shines surface mark is reflected, reflection ray is through sheet glass, objective lens, inclined-plane reflection by second right-angle prism, arrive the inclined-plane of first right-angle prism, be coated with the filter coating that used optical maser wavelength is had the strong reflection effect on the inclined-plane of first right-angle prism, make and can not injure human eye through the laser that arrives human eye behind first right-angle prism, crosshair graticule, the eyepiece lens.Even forget like this and close laser, when the operator carried out centering by eyepiece, human eye can not come to harm yet.The operator also can carry out the centering operation with the optical centering device of routine.
Effect and effect
The utility model is owing to adopt said structure, the centering of the convenient, fast and accurate realization measuring instrument of energy.This laser alignment device can make the user carry out the centering operation with conventional optics centering and two kinds of centering modes of laser alignment.There is the cross sign laser hot spot center on the ground, and the gauger can overlap with the center of surface mark by the cross sign that makes the hot spot center and carry out accurate centering.Filter coating has reduced the laser intensity that arrives eyepiece, and does not weaken other visible light intensity, makes operator's observation clearer and can protect observer's the eyes not injury of Stimulated Light.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
At common transit, total powerstation, GPS or observe on the base of board, sheet glass 1, objective lens 2, second right-angle prism 3, first right-angle prism 4, generating laser 5, marking plate 6, corrector 7, crosshair graticule 8 and eyepiece lens 9 are installed.
Two right angle faces of right-angle prism 4 are all vertical with surface level with the inclined-plane, and wherein edged surface is parallel with the optical axis of eyepiece lens 9 always, and another right angle face is parallel with laser beam axis.The inclined-plane of right-angle prism 4 is towards right-angle prism 3 and marking plate 6, and makes the laser that generating laser 5 sends and the angle at 45, inclined-plane of right-angle prism 4.The inclined-plane of right-angle prism 3 to guarantee and the inclined-plane laser light reflected of right-angle prism 4 can be able to be seen through objective lens 2, arrives surface mark towards right-angle prism 4 and objective lens 2, can make the light through the surface mark reflection again, arrives eyepiece lens 9.
Between right-angle prism 3 and crosshair graticule 8, install generating laser 5 near crosshair graticule 8 one ends.Before use, adjust generating laser 5 with corrector 7.When rotation correction screw 11, make adjusting screw 11 when the spring 12 on opposite advances, the spring 12 on adjusting screw 11 opposites is compressed, and generating laser 5 is to the working direction translation of adjusting screw 11; When rotation correction screw 11, when adjusting screw 11 is retreated with respect to the spring 12 on opposite, spring 12 elongations on adjusting screw 11 opposites, generating laser 5 is to the direction of retreat translation of adjusting screw 11.Adjusting two adjusting screws 11 respectively can make generating laser 5 respectively in horizontal line and the translation of vertical curve direction, thereby laser beam optical axis with eyepiece lens 9 in surface level that generating laser 5 is sent is vertical, and the center of cross sign is overlapped with the center of crosshair graticule 8.
Marking plate 6 is installed between generating laser 5 and right-angle prism 4, and the laser beam that generating laser 5 sends sees through marking plate 6, forms the laser beam that the central area has lighttight cross sign.The central area has the laser beam of lighttight cross sign through the reflection of the inclined-plane of right-angle prism 4, arrive the inclined-plane of right-angle prism 3, through the reflection of the inclined-plane of right-angle prism 3, behind objective lens 2, sheet glass 1, arrive the surface mark place, by the laser pattern of cross shade and the relation at surface mark center, just can make things convenient for and carry out centering exactly.The operator can carry out conventional optics centering by eyepiece again.
The laser part that shines surface mark is reflected, reflection ray is through sheet glass 1, objective lens 2, inclined-plane reflection by right-angle prism 3, arrive the inclined-plane of right-angle prism 4, be coated with on the inclined-plane of right-angle prism 4 used optical maser wavelength is had the strong reflection effect and other wavelength is had the filter coating 10 of high transmission, make that seeing through the laser that right-angle prism 4, crosshair graticule 8, eyepiece lens 9 backs arrive human eyes can not injure human eye.Even forget like this and close laser, when the operator carried out centering by eyepiece, human eye can not come to harm yet.The operator can carry out the centering operation with the optical centering device of routine.
Claims (4)
1. laser alignment device, comprise objective lens, eyepiece lens, generating laser, the optical axis of objective lens and eyepiece lens is vertical mutually, it is characterized in that: generating laser is positioned at a side of eyepiece lens optical axis, the optical axis of eyepiece lens is provided with the generating laser emitted laser is reflected in first right-angle prism on the optical axis of eyepiece lens, be provided with the crosshair graticule between first right-angle prism and the eyepiece lens, the crosshair graticule is positioned on the optical axis of eyepiece lens, is provided with the laser marker plate between first right-angle prism and the generating laser; Be provided with second right-angle prism of the laser-bounce after the above-mentioned reflection to the objective lens optical axis, the below of objective lens is provided with sheet glass.
2. laser alignment device according to claim 1 is characterized in that: above-mentioned marking plate is a light-passing board, is shaped on lighttight cross sign on the marking plate, and the center of cross sign overlaps with the laser beam axis center.
3. laser alignment device according to claim 1 and 2 is characterized in that: be coated with the filter coating that used optical maser wavelength is had the strong reflection effect on the inclined-plane of above-mentioned first right-angle prism.
4. laser alignment device according to claim 1 and 2 is characterized in that: be provided with the corrector of adjusting the generating laser optical axis, corrector is made up of the body of fixed laser transmitter and two groups of adjusting screws and spring; One group of adjusting screw and spring are positioned at the both sides of generating laser surface level, and another group adjusting screw and spring are positioned at the vertical both sides of generating laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255088 CN2653437Y (en) | 2003-08-12 | 2003-08-12 | Laser centring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255088 CN2653437Y (en) | 2003-08-12 | 2003-08-12 | Laser centring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2653437Y true CN2653437Y (en) | 2004-11-03 |
Family
ID=34328560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03255088 Expired - Fee Related CN2653437Y (en) | 2003-08-12 | 2003-08-12 | Laser centring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2653437Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102821237A (en) * | 2012-08-01 | 2012-12-12 | 苏州中德宏泰电子科技有限公司 | Method for debugging vertical centering between lens of video camera and target surface |
| RU2603999C1 (en) * | 2015-06-03 | 2016-12-10 | Акционерное общество "Государственный оптический институт им. С.И. Вавилова" | Nonlinearity laser meter |
| CN107390277A (en) * | 2017-07-19 | 2017-11-24 | 中国地震局地球物理研究所 | A kind of absolute earth magnetism observation procedure of high-precision automatic |
| RU216337U1 (en) * | 2022-05-31 | 2023-01-30 | Общество с ограниченной ответственностью "ГРАДАН" (ООО "ГРАДАН") | STRAIGHTNESS METER |
-
2003
- 2003-08-12 CN CN 03255088 patent/CN2653437Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102821237A (en) * | 2012-08-01 | 2012-12-12 | 苏州中德宏泰电子科技有限公司 | Method for debugging vertical centering between lens of video camera and target surface |
| CN102821237B (en) * | 2012-08-01 | 2015-04-29 | 苏州中德宏泰电子科技有限公司 | Method for debugging vertical centering between lens of video camera and target surface |
| RU2603999C1 (en) * | 2015-06-03 | 2016-12-10 | Акционерное общество "Государственный оптический институт им. С.И. Вавилова" | Nonlinearity laser meter |
| CN107390277A (en) * | 2017-07-19 | 2017-11-24 | 中国地震局地球物理研究所 | A kind of absolute earth magnetism observation procedure of high-precision automatic |
| RU216337U1 (en) * | 2022-05-31 | 2023-01-30 | Общество с ограниченной ответственностью "ГРАДАН" (ООО "ГРАДАН") | STRAIGHTNESS METER |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |