CN207249221U

CN207249221U - Vitreum and corner cube

Info

Publication number: CN207249221U
Application number: CN201721344338.4U
Authority: CN
Inventors: 郑向琴
Original assignee: Sichuan Strapdown Technology Co Ltd
Current assignee: Sichuan Strapdown Technology Co Ltd
Priority date: 2017-10-18
Filing date: 2017-10-18
Publication date: 2018-04-17
Anticipated expiration: 2027-10-18

Abstract

The utility model provides a kind of low cost and high-precision vitreum and the corner cube that is made of the vitreum.Vitreum, first plane intersects with the second plane, the 3rd plane, cambered surface, fourth plane intersects with the second plane, the 3rd plane, cambered surface, second plane is vertical with fourth plane, 3rd plane is vertical with fourth plane, the angle of first plane and the second plane is 135 degree, the angle of first plane and the 3rd plane is 135 degree, the common edge of first plane and the second plane is 90 degree with the angle α of the first plane and the common edge of the 3rd plane, and common edge and the angle β of the 3rd plane and the common edge of fourth plane of the second plane and fourth plane are 120 degree.The corner cube of the utility model is assembled using a kind of optical element, and batch production is beneficial on the premise of precision is ensured, does not have to during production adjust repeatedly, assembling can ensure precision in place.

Description

Vitreum and corner cube

Technical field

A kind of reflective optical system is the utility model is related to, more particularly to a kind of corner being used cooperatively with optical gauge Prism.

Background technology

The prism being used cooperatively at present with optical gauge (such as total powerstation) is prism of corner cube mostly, is pacified inside prism Equipped with glass pyramid, the distance measuring laser beams sent for reflection measuring Instrument, distance measuring light beam run into after prism can with parallel to The multipath tolerant of incident light is returned in measuring instrument, according between the propagation time of light or phase difference calculating measuring instrument and prism Distance.Since prism of corner cube is solid vitreum, distance measuring light beam can be changed back and forth in air and glass both media, and With light reflection and refraction phenomena such as, measurement accuracy can be caused low, the luminous intensity back to measuring instrument is reduced so as to dropping The ranging of low measuring instrument, at the same can also due to the volume of the glass pyramid in prism of corner cube, thickness, material it is inconsistent, Cause itself constant error.

In addition, it is corner cube to also have a kind of prism at present, there are three orthogonal reflectings surface, ranging light inside prism Beam reflects back into measuring instrument in a kind of this medium in air by three orthogonal faces, halfway the reflection without glass and folding Process is penetrated, range laser energy is not decayed by prism, simultaneously because the constant of corner cube and prism volume size are not related, Also itself constant error caused by glass and air refraction are inconsistent is not present.Corner cube is mainly used in needing height The field of industrial measurement of precision, single price members up to ten thousand even tens of thousands of members, high price block the product in survey field A large amount of uses.

The main reason for corner cube price is high is that the high-precision glass corner of manufacture is extremely difficult, yields is low, at present Carry out bonding assembly using 3 sheet glass mostly and be adjusted in place and form repeatedly, as Application No. 201220338247.0, 200910062015.X, 201610540905.7 Chinese patent application；In addition also have one the reason is that, by glass corner Reflection kernel point is accurately installed to spherical shell or physical centre's point of other spherical shells is extremely difficult.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of low cost and high-precision vitreum and by this The corner cube that vitreum is formed.

The utility model technical scheme applied to solve the technical problem is：Vitreum, by the first plane, the second plane, 3rd plane, fourth plane and cambered surface form obturator, wherein, first plane and the second plane, the 3rd plane, cambered surface phase To hand over, the fourth plane intersects with the second plane, the 3rd plane, cambered surface, and second plane is vertical with fourth plane, and described the Three planes are vertical with fourth plane, and the angle of first plane and the second plane is 135 degree, first plane and the 3rd flat The angle in face is 135 degree, common edge and the common edge of the first plane and the 3rd plane of first plane and the second plane Angle α is 90 degree, the angle β of the common edge and the 3rd plane and the common edge of fourth plane of second plane and fourth plane For 120 degree.

Further, the arc radius of the fourth plane is equal to the public edge lengths of the second plane and fourth plane, and The public edge lengths of second plane and fourth plane are equal to the public edge lengths of the 3rd plane and fourth plane.

Further, first plane and fourth plane respectively constitute the top and bottom of vitreum, and described second is flat Face, the 3rd plane and cambered surface form the closed side of vitreum.

Corner cube, is composed using three above-mentioned vitreums.

Further, including spherical shell and the reflector formed is combined by three vitreums, wherein, the second of each vitreum Plane and the 3rd plane are combinatorial surface, and the reflecting surface of the reflector after combination is made of the first plane of three vitreums, three Three fourth planes of vitreum form the bottom surface of reflector, and three cambered surfaces of three vitreums form 360 degree of cylindrical surface.

Further, after combination, the first plane of each vitreum is mutually hung down with the first plane of adjacent vitreum Directly.

The beneficial effects of the utility model are：The corner cube of the utility model is assembled using a kind of optical element, Ensure to be beneficial to batch production on the premise of precision；Do not have to adjust repeatedly when manufacturing corner cube, assembling can ensure in place Precision, reduces the technical requirements to assembling link, so that the control beneficial to overall cost.

Brief description of the drawings

Fig. 1 is the front view of the vitreum of the utility model.

Fig. 2 is the top view of Fig. 1.

Fig. 3 is the bottom view of Fig. 1.

Fig. 4 is the left view of Fig. 1.

Fig. 5 is the right view of Fig. 1.

Fig. 6 is the rearview of Fig. 1.

Fig. 7 is that three vitreums of the utility model combine the stereogram for the reflector to be formed.

Fig. 8 is the stereogram in another direction of Fig. 7.

Fig. 9 is the front view of the corner cube of the utility model.

Figure 10 is the sectional view of Fig. 9.

Figure 11 is the right view of Fig. 9.

Figure 12 is the stereogram of the corner cube of the utility model.

Figure 13 is the stereogram in another direction of the corner cube of the utility model.

Embodiment

As shown in figures 1 to 6, the vitreum of the utility model is by the first plane 1, the second plane 2, the 3rd plane 3, Siping City Face 4 and cambered surface 5 form obturator, wherein, the first plane 1 intersects with the second plane 2, the 3rd plane 3, cambered surface 5 respectively, Siping City Face 4 is intersected with the second plane 2, the 3rd plane 3, cambered surface 5 respectively, and the first plane 1 and fourth plane 4 respectively constitute the top of vitreum Face and bottom surface, the second plane 2, the 3rd plane 3 and cambered surface 5 form the closed side of vitreum.Second plane 2 and fourth plane 4 Vertically, the 3rd plane 3 is vertical with fourth plane 4, and the angle of the first plane 1 and the second plane 2 is 135 degree, the first plane 1 and The angle of three planes 3 is 135 degree, the common edge of the first plane 1 and the second plane 2 and the first plane 1 and the 3rd plane 3 it is public The angle α on side is 90 degree, as shown in Figure 1, the common edge of the second plane 2 and fourth plane 4 and the 3rd plane 3 and fourth plane 4 Common edge angle β be 120 degree, as shown in figure 5, i.e. fourth plane 4 is one 120 degree of sector.

The arc radius of above-mentioned fourth plane 4 is equal to the public edge lengths of the second plane 2 and fourth plane 4, meanwhile, second The public edge lengths of plane 2 and fourth plane 4 are equal to the public edge lengths of the 3rd plane 3 and fourth plane 4.

There is a chamfering 7, it is therefore an objective to beneficial to assembling, be not easy to hinder hand or avoid causing glass in assembling in above-mentioned cambered surface 5 Glass body is damaged.

The corner cube of the utility model is composed using three above-mentioned vitreums, specifically, including spherical shell 6 and by three A vitreum combines the cylindrical structural body to be formed (i.e.：Reflector), as illustrated in figures 7 to 13, wherein, the second of each vitreum 2 and the 3rd plane 3 of plane is combinatorial surface (adhesive surface), the reflecting surface of the reflector after combination by three vitreums the first plane 1 is formed, and 90 degree of angles each other two-by-two between three the first planes 1.Three fourth planes 4 of three vitreums form reflector Bottom surface, three cambered surfaces 5 of three vitreums form 360 degree of cylindrical surface.Because having two in the first plane 1 of each vitreum While be orthogonal, therefore after combination, the first plane 1 of each vitreum and 1 phase of the first plane of adjacent vitreum It is mutually vertical.

The production assembly method of the corner cube of the utility model has two kinds, and a kind of method is：First according to anti-after combination The diameter and spherical shell 6 of beam, process a round metal column sleeve, it accurate can be loaded reflector and is coordinated with spherical shell 6 and pacify Dress, makes the reflection kernel of reflector be overlapped with 6 center of spherical shell；By in three vitreums assembly to round metal column sleeve, ensure assembled Reflector bottom surface and round metal column sleeve bottom surface after good is closely connected, and reflector cylindrical surface and metal cylinder jacket wall are closely connected；Again will installation The metal cylinder for having reflector is set with spherical shell 6, need to consider to be assemblied in round metal column sleeve when designing round metal column sleeve size Interior reflector reflection kernel and 6 physical dimension relation of spherical shell, it is ensured that with screw or other means by the gold equipped with reflector When category cylindrical sleeve is fixed in spherical shell 6, reflection kernel and the spherical shell center of reflector are in same position.

Also one kind, which produces assembly method, is：One cylindrical cavity supporting with reflector of processing directly in spherical shell 6, The bottom surface of reflector and cylindrical cavity bottom surface are closely connected, and reflector cylindrical surface and cylindrical empty cavity wall are closely connected, and according to reflector Center geometric position the depth of cavity is set, reflector is ensured after being installed in place in reflection kernel and the spherical shell 6 of reflector The heart overlaps.

The utility model recycles three identical vitreums into luggage by first producing a kind of optical body part Match somebody with somebody, form the reflector of corner cube, the form for being first assembled into component can be used, then component is assembled in spherical shell 6 and is formed Final corner cube, can also be directly assembled to form corner cube in spherical shell 6.Two kinds of assembling schemes are control processing essences Degree, reduces assembly difficulty, so as to reduce production cost and improve yield rate.

Claims

1. vitreum, it is characterised in that：By the first plane (1), the second plane (2), the 3rd plane (3), fourth plane (4) and arc Face (5) forms obturator, wherein, first plane (1) is intersected with the second plane (2), the 3rd plane (3), cambered surface (5), institute State fourth plane (4) with the second plane (2), the 3rd plane (3), cambered surface (5) to intersect, second plane (2) and fourth plane (4) vertically, the 3rd plane (3) is vertical with fourth plane (4), and first plane (1) and the angle of the second plane (2) are 135 degree, first plane (1) and the angle of the 3rd plane (3) are 135 degree, first plane (1) and the second plane (2) Common edge and the first plane (1) and the angle α of common edge of the 3rd plane (3) be 90 degree, second plane (2) and the 4th The common edge of plane (4) is 120 degree with the angle β of the 3rd plane (3) and the common edge of fourth plane (4).

2. vitreum as claimed in claim 1, it is characterised in that：It is flat that the arc radius of the fourth plane (4) is equal to second Face (2) and the public edge lengths of fourth plane (4), and the second plane (2) and the public edge lengths of fourth plane (4) are equal to the 3rd The public edge lengths of plane (3) and fourth plane (4).

3. vitreum as claimed in claim 1, it is characterised in that：First plane (1) and fourth plane (4) respectively constitute The top and bottom of vitreum, second plane (2), the 3rd plane (3) and cambered surface (5) form the closed side of vitreum.

4. corner cube, it is characterised in that：It is composed using vitreum described in three claims 1.

5. corner cube as claimed in claim 4, it is characterised in that：Formed including spherical shell (6) and being combined by three vitreums Reflector, wherein, the second plane (2) and the 3rd plane (3) of each vitreum are combinatorial surface, the reflector after combination it is anti- Penetrate face to be made of the first plane (1) of three vitreums, three fourth planes (4) of three vitreums form the bottom of reflector Face, three cambered surfaces (5) of three vitreums form 360 degree of cylindrical surface.

6. corner cube as described in claim 4 or 5, it is characterised in that：After combination, the first plane (1) of each vitreum The first plane (1) all with adjacent vitreum is mutually perpendicular to.