CN102819089A - Air medium split two-direction right-angle head - Google Patents
Air medium split two-direction right-angle head Download PDFInfo
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- CN102819089A CN102819089A CN201210319168XA CN201210319168A CN102819089A CN 102819089 A CN102819089 A CN 102819089A CN 201210319168X A CN201210319168X A CN 201210319168XA CN 201210319168 A CN201210319168 A CN 201210319168A CN 102819089 A CN102819089 A CN 102819089A
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- reflective mirror
- light
- reflector
- angle head
- right angle
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- 239000011521 glass Substances 0.000 claims abstract description 23
- 239000000428 dust Substances 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 229910001374 Invar Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
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- Mounting And Adjusting Of Optical Elements (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
本发明提供一种空气介质分体式二向直角头。其包括中空长方体状的壳体，壳体的三个相邻侧面分别开设透射光通光孔、折射光通光孔和入射光通光孔共三个通光孔，三个通光孔分别与防尘罩弹性连接；壳体上下两端面为平行端面，平行度不大于2〞，分别与上顶板和下底板用螺钉联接；反光镜Ⅰ和反光镜Ⅱ呈三角柱状，分别固定在两个三角状的反光镜安装板上，两个反光镜安装板固定在下底板上，并使得反光镜Ⅰ与反光镜Ⅱ之间为45°夹角；所述的反光镜Ⅰ中间带有反光镜透射光通光孔，反光镜透射光通光孔与透射光通光孔对齐。本发明由于两反射面间的介质为空气，不存在玻璃内长光程的光能损耗，可制成较大的通光口径，容易捕捉目标，使用方便。
The invention provides an air medium split type two-way right-angle head. It includes a hollow cuboid shell, and three adjacent sides of the shell are respectively provided with three light holes for transmitted light, refracted light, and incident light. The dust cover is elastically connected; the upper and lower ends of the shell are parallel end faces, and the parallelism is not greater than 2", which are respectively connected with the upper top plate and the lower bottom plate with screws; the reflector Ⅰ and reflector Ⅱ are triangular columns, and are respectively fixed on two triangles. Shaped reflector mounting plate, two reflector mounting plates are fixed on the lower base plate, and make the angle between reflector Ⅰ and reflector Ⅱ be 45°; the reflector Ⅰ has a reflector transmission light channel in the middle Optical hole, reflective mirror transmission light aperture is aligned with transmission light aperture. The present invention does not exist the light energy loss of long optical path in glass because the medium between two reflection surfaces is air, can make larger aperture Caliber, easy to catch target, easy to use.
Description
Technical field
The invention belongs to geometric sense measurement of angle field, relate to a kind of two, particularly relate to a kind of air dielectric split type two to the right angle head to the right angle head.
Background technology
Two are zero offset optical square again to the right angle head, are the important accessory of photogoniometer devices such as collimating telescope or photoelectric auto-collimator.Two make the optics sight line turn back 90 ° to the right angle head, are used for setting up mutually perpendicular optics sight line, or the optical flat vertical with the optics sight line and several optical flats parallel to each other etc.Commonly used two adopt monolithic construction to the right angle head, are processed by a glass pentaprism 13 and a glass wedge mirror 12 that is glued on its semi-transparent semi-reflecting.Integral glass two is seen illustrated in figures 1 and 2 to right angle header structure and schematic diagram: pentaprism makes 90 ° of the accurate corners of optics direct-view sight line, and gummed wedge mirror is not turned back incident ray, and the transmission continued forward.When changing pentaprism workplace angle angle value, also can be made into non-90 ° particular beam deflection angle device.
Integral glass two has following limitation to the right angle head:
(1) when clear aperture increases, because the light path of light in glass increases, glass also increases the absorption of luminous energy, and remarkable greater than the ability loss of φ 30mm time when clear aperture, this structure is not suitable for the occasion bigger to the clear aperture requirement.
(2) 90 ° of need of the accurate corner of optics sight line meet the following conditions: a, two reflectings surface become 45 ° of angles accurately; B, two reflectings surface are perpendicular to same plane, and this requirement often is called " tower is poor "; The flatness of c, two reflectings surface.The glass pentaprism is owing to process with monolithic glass, and two reflectings surface should guarantee 45 ° of angles, guarantees again perpendicular to same plane, be difficult on the technology realize, in case and plated film just can't repair.The depth of parallelism of therefore general glass pentaprism emergent light and incident light in vertical plane is " angle branch " level often, because the influence of " tower is poor " is difficult to 90 ° of accurate corners of realization.
(3) owing to two glass behind the glass pentaprism gummed wedge mirror are difficult to accomplish that strictness is parallel, the direct projection emergent light can deflect or translation, influences measuring accuracy.
Summary of the invention
The present invention is directed to the limitation of above-mentioned integral glass two, provide a kind of air dielectric split type two, reduce manufacturing cost, improve and the expansion usable range to improve its measuring accuracy to the right angle head to the right angle head.
Realize the technical scheme of the object of the invention: a kind of air dielectric split type two is to the right angle head; It comprises the housing that hollow is rectangular-shaped; Three adjacent side of housing are offered transmitted light light hole, refract light light hole and incident light light hole totally three light holes respectively, and three light holes are connected with dust cover elasticity respectively; Housing both ends of the surface up and down is a parallel end faces, and the depth of parallelism is not more than 2 〞, uses screw attachment with upper plate and lower shoe respectively; Reflective mirror I and reflective mirror II are the triangle column, are separately fixed on the reflective mirror installing plate of two triangular shapes, and two reflective mirror installing plates are fixed on the lower shoe, and make between reflective mirror I and the reflective mirror II to be 45 ° of angles; Have reflective mirror transmitted light light hole in the middle of the described reflective mirror I, reflective mirror transmitted light light hole aligns with the transmitted light light hole.
Aforesaid a kind of air dielectric split type two is to the right angle head, the reflective mirror that its described reflective mirror I and reflective mirror II are processed for K9 glass, workplace coating deielectric-coating, all the other non-working surface frosteds; The reflective mirror transmitted light light hole diameter that has in the middle of the reflective mirror I is Φ 15mm.
Aforesaid a kind of air dielectric split type two is to the right angle head, and its described reflective mirror I and reflective mirror II are glued on two reflective mirror installing plates with the optics structure glue respectively; Two reflective mirror installing plates connect firmly lower shoe through screw.
Aforesaid a kind of air dielectric split type two is to the right angle head, and its described lower shoe is tabular hexahedron, and upper and lower surface is a workplace, and the attrition process depth of parallelism is not more than 2 ", flatness is not more than 0.1 μ m; Grind reflective mirror installing plate installed surface, the bottom surface verticality that makes reflective mirror I, reflective mirror II and lower shoe is that " tower is poor " is not more than 3 〞; Mounting screw between adjustment light microscopic installing plate and the lower shoe guarantees that 45 ° of angles between reflective mirror I and the reflective mirror II are not more than 2 〞.
Effect of the present invention is: air dielectric of the present invention split type two is to the right angle head; The device parts adopt the very little Nb-invar steel of temperature expansion coefficient to make; Reflective mirror adopts the devitrified glass manufacturing, instrument because of the measurement of angle mistake that temperature variation (5～35 ℃) causes be not more than ± 1 ".Because the medium between two reflectings surface is an air, there is not the luminous energy loss of long light path in the glass, therefore can be made into bigger clear aperture, captured target is easy to use easily.90 ° of angular errors of emergent light and incident light are not more than 2 ", also can process other corner angles by request for utilization; In perpendicular plane, 90 ° of corner planes, the depth of parallelism of emergent light and incident light is not more than 3 ".When two during, can significantly reduce the variable quantity of autocollimation picture to right angle head location deflection.The pedestal sole plane touch ± 5 ° of dull and stereotyped swings, and the variable quantity of autocollimator detected value is not more than ± and 1 ".
Description of drawings
Fig. 1 is that integral glass two is to right angle header structure figure;
Fig. 2 is that Fig. 1 two is to right angle head principle schematic;
Fig. 3 is that air dielectric split type two is to right angle head schematic diagram;
Fig. 4 is that air dielectric split type two is to right angle head overall diagram;
Fig. 5 is that air dielectric split type two is to right angle head exploded view;
Among the figure: 1. upper plate; 2. housing; 3. transmitted light light hole; 4. reflective mirror I; 5. reflective mirror transmitted light light hole; 6. lower shoe; 7. reflective mirror installing plate; 8. reflective mirror II; 9. refract light light hole; 10. incident light light hole; 11. dust cover; 12. wedge mirror; 13. pentaprism.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment air dielectric of the present invention split type two is further described to the right angle head.
Like Fig. 4 and shown in Figure 5, air dielectric of the present invention split type two is made up of upper plate 1, housing 2, reflective mirror I 4, lower shoe 6, reflective mirror installing plate 7, reflective mirror II 8 and dust cover 11 etc. to the right angle head.
Wherein, three adjacent side of the housing 2 that hollow is rectangular-shaped are offered transmitted light light hole 3, refract light light hole 9 and incident light light hole 10 totally three light holes respectively, and three light holes are connected with dust cover 11 elasticity respectively; Housing about in the of 2 both ends of the surface be parallel end faces, the depth of parallelism is not more than 2 〞, uses screw attachment with upper plate 1 and lower shoe 6 respectively;
Reflective mirror I 4 is the triangle column with reflective mirror II 8; Be glued on the reflective mirror installing plate 7 of two triangular shapes with the optics structure glue respectively; Two reflective mirror installing plates 7 connect firmly on lower shoe 6 through screw, and make between reflective mirror I 4 and the reflective mirror II 8 to be 45 ° of angles;
Have the reflective mirror transmitted light light hole 5 that diameter is Φ 15mm in the middle of the described reflective mirror I 4, reflective mirror transmitted light light hole 5 aligns with transmitted light light hole 3.
The reflective mirror that above-mentioned reflective mirror I 4 and reflective mirror II 8 are processed for K9 glass, workplace coating deielectric-coating, all the other non-working surface frosteds.
Above-mentioned lower shoe 6 is tabular hexahedron, and upper and lower surface is a workplace, and the attrition process depth of parallelism is not more than 2 ", flatness is not more than 0.1 μ m; Grind reflective mirror installing plate 7 installed surfaces, making reflective mirror I 4, reflective mirror II 8 is that " tower is poor " is not more than 3 〞 with the bottom surface verticality of lower shoe 6; Mounting screw between adjustment light microscopic installing plate 7 and the lower shoe 6 guarantees that 45 ° of angles between reflective mirror I 4 and the reflective mirror II 8 are not more than 2 〞.
As shown in Figure 3; When air dielectric of the present invention split type two uses to the right angle head; Open dust cover 11; With photogoniometer device optical axis alignment incident light light holes 10 such as collimating telescope or photoelectric auto-collimators, along the original optical path outgoing, remainder is turned back 90 ° through 9 outgoing of refract light light hole through reflective mirror I 4 and reflective mirror II 8 to the incident ray intermediate rays through reflective mirror transmission light hole 5 and transmitted light light hole 3 backs.
Above-mentioned metal parts is that Nb-invar steel is processed into, and the back workplace of finishing using dips in alcohol or gasoline wiping with absorbent cotton, and is coated with oil guard, covers dust cover 11 and preserves.
Air dielectric of the present invention split type two adopts hollow split-type design scheme to the right angle head; Make an incident light part through light hole edge former road outgoing; Another part is through the 90 ° of outgoing of turning back of reflective mirror I and reflective mirror II; Light is propagated in air dielectric all the time, farthest reduces the loss of luminous energy; It is abandoned monoblock type and adopts split typely, is convenient to improve 90 ° of corners or fixing angular errors, takes into account the influence of " tower is poor " simultaneously, and then improves measuring accuracy, reduces and simplifies service condition, reduces manufacturing cost; Remove light deflection or translation that the wedge mirror avoids straight-through light to take place through glass medium.
Air dielectric of the present invention split type two adopts the very little Nb-invar steel of temperature expansion coefficient to make to right angle head parts, and reflective mirror adopts the devitrified glass manufacturing, expands the environment for use of instrument to field; Plate corresponding deielectric-coating according to the difference of surveying instrument optical source wavelength, improve reflectivity (ranging up to 98%) and can be applicable to measurement, also can solve the measurement situation of the low or flatness difference of target reflective mirror reflectivity than distant object; Through the position of 45 ° of angles of adjustment glass mirror, guarantee that incident light and the emergent light of turning back are 90 ° or fixed angle in the horizontal direction; Through the metal microscope base of reconditioning glass mirror and the surface of contact of base plate, guarantee that the verticality of reflecting surface and base plate bottom surface is " tower is poor " (being not more than 2 〞), parallel in vertical direction with the emergent light that guarantees 90 ° of corners with incident light; Be employed in the mode that light direct-view direction leaves light hole and guarantee that light direction of propagation on the basis of original optical path is constant; Two to the right angle head up and down two base plate basal planes are all vertical with the pentaprism crest line, be convenient to right angle head and the accurate centering of photoelectric auto-collimator quasi-instrument relative position.
Claims (4)
1. an air dielectric split type two is to the right angle head; It is characterized in that: it comprises the rectangular-shaped housing of hollow (2); Three adjacent side of housing (2) are offered transmitted light light hole (3), refract light light hole (9) and incident light light hole (10) totally three light holes respectively, and three light holes are connected with dust cover (11) elasticity respectively; Housing (2) both ends of the surface up and down is a parallel end faces, and the depth of parallelism is not more than 2 〞, uses screw attachment with upper plate (1) and lower shoe (6) respectively;
Reflective mirror I (4) and reflective mirror II (8) are the triangle column; Be separately fixed on the reflective mirror installing plate (7) of two triangular shapes; Two reflective mirror installing plates (7) are fixed on the lower shoe (6), and make between reflective mirror I (4) and the reflective mirror II (8) to be 45 ° of angles;
Have reflective mirror transmitted light light hole (5) in the middle of the described reflective mirror I (4), reflective mirror transmitted light light hole (5) aligns with transmitted light light hole (3).
2. a kind of air dielectric according to claim 1 split type two is characterized in that: the reflective mirror that described reflective mirror I (4) and reflective mirror II (8) are processed for K9 glass, workplace coating deielectric-coating, all the other non-working surface frosteds to the right angle head; Reflective mirror transmitted light light hole (5) diameter that has in the middle of the reflective mirror I (4) is Φ 15mm.
3. a kind of air dielectric according to claim 2 split type two is to the right angle head, and it is characterized in that: described reflective mirror I (4) and reflective mirror II (8) are glued on two reflective mirror installing plates (7) with the optics structure glue respectively; Two reflective mirror installing plates (7) connect firmly lower shoe (6) through screw.
4. a kind of air dielectric according to claim 3 split type two is to the right angle head, and it is characterized in that: described lower shoe (6) is tabular hexahedron, and upper and lower surface is a workplace, and the attrition process depth of parallelism is not more than 2 ", flatness is not more than 0.1 μ m; Grind reflective mirror installing plate (7) installed surface, making reflective mirror I (4), reflective mirror II (8) is that " tower is poor " is not more than 3 〞 with the bottom surface verticality of lower shoe (6); Mounting screw between adjustment light microscopic installing plate (7) and the lower shoe (6) guarantees that 45 ° of angles between reflective mirror I (4) and the reflective mirror II (8) are not more than 2 〞.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210319168XA CN102819089A (en) | 2012-08-31 | 2012-08-31 | Air medium split two-direction right-angle head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210319168XA CN102819089A (en) | 2012-08-31 | 2012-08-31 | Air medium split two-direction right-angle head |
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| Publication Number | Publication Date |
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| CN102819089A true CN102819089A (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210319168XA Pending CN102819089A (en) | 2012-08-31 | 2012-08-31 | Air medium split two-direction right-angle head |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2170922A (en) * | 1985-02-01 | 1986-08-13 | Gen Electric Co Plc | Light beam switching prism having mirrored faces |
| US4770480A (en) * | 1986-05-12 | 1988-09-13 | Spectra-Physics, Inc. | Apparatus and method for providing multiple reference laser beams |
| CN2116889U (en) * | 1992-04-25 | 1992-09-23 | 国家技术监督局北京计量仪器厂 | Level collimation axes measuring device |
| US20050036218A1 (en) * | 2003-08-15 | 2005-02-17 | David Lunt | Neutral white-light filter device |
| CN102360111A (en) * | 2011-10-24 | 2012-02-22 | 北京航天计量测试技术研究所 | Split type hollow pentaprism |
| CN202814359U (en) * | 2012-08-31 | 2013-03-20 | 北京航天计量测试技术研究所 | Air medium split type two-dimensional right angle head |
-
2012
- 2012-08-31 CN CN201210319168XA patent/CN102819089A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2170922A (en) * | 1985-02-01 | 1986-08-13 | Gen Electric Co Plc | Light beam switching prism having mirrored faces |
| US4770480A (en) * | 1986-05-12 | 1988-09-13 | Spectra-Physics, Inc. | Apparatus and method for providing multiple reference laser beams |
| CN2116889U (en) * | 1992-04-25 | 1992-09-23 | 国家技术监督局北京计量仪器厂 | Level collimation axes measuring device |
| US20050036218A1 (en) * | 2003-08-15 | 2005-02-17 | David Lunt | Neutral white-light filter device |
| CN102360111A (en) * | 2011-10-24 | 2012-02-22 | 北京航天计量测试技术研究所 | Split type hollow pentaprism |
| CN202814359U (en) * | 2012-08-31 | 2013-03-20 | 北京航天计量测试技术研究所 | Air medium split type two-dimensional right angle head |
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Application publication date: 20121212 |