WO2012069012A1

WO2012069012A1 - Reflector

Info

Publication number: WO2012069012A1
Application number: PCT/CN2011/082954
Authority: WO
Inventors: 娄霆; 武传华; 路后兵; 王俊
Original assignee: 合肥市百胜科技发展股份有限公司
Priority date: 2010-11-27
Filing date: 2011-11-25
Publication date: 2012-05-31
Also published as: CN102169221B; CN102169221A

Abstract

A reflector, belonging to the field of optical parts and components. The reflector is provided with two intersectingly arranged reflecting faces (10, 20). The rays of light reflected by the reflecting faces travel in the same direction and are parallel to each other. The beam of light reflected by the intersectingly arranged reflecting faces has a range greater than that of a beam of light reflected by a single reflecting face. The range of the beam of light reflected by the intersectingly arranged reflecting faces of the reflector is twice the size of the range of a beam of light reflected by a single reflecting face, thereby increasing the range of reflection of the beam and ensuring the measurement of material having a large diameter.

Description

a mirror

技术领域 Technical field

The invention belongs to the field of optical components, and in particular relates to an optical mirror.

背景技术 Background technique

The present invention is applicable to any optical instrument that uses parallel beams for optical measurements for use in providing parallel beams of greater illumination range.

The invention is particularly applicable to optical calipers for providing measurement operations for larger diameter wire rods in the same type of caliper.

Nowadays, more and more optical instruments are beginning to use parallel beams as their measurement source. With the increasing miniaturization of measuring instruments, the components are becoming more and more streamlined and arranged close to each other, giving direct transmission of the measuring beam. Measurements create obstacles, which inevitably need to be applied to the mirror to make the transition of the light source for the ultimate measurement purpose. Since the illumination range of the parallel beam before and after reflection is constant, in other words, the range of illumination of the parallel beam you provide is large, no matter how it is reflected, the illumination range that is finally irradiated onto the measurement object will be How large, so when the measurement object is a large object (such as the radial width of the parallel beam reflected by the mirror is less than or equal to the diameter of the wire material to be tested), the original optical instrument can not be measured at all, only through replacement The type of instrument is solved by using a larger model or parallel light source, which increases the cost of measurement.

发明内容 Summary of the invention

It is an object of the present invention to provide a mirror that increases the range of reflection of parallel beams.

In order to achieve the above object, the present invention adopts the following technical solution: a mirror having two reflecting surfaces arranged in a cross shape, and the reflected light of the reflecting surface is in the same direction and parallel to each other. The beam reflected by the reflective surface arranged in a crosswise arrangement has a range greater than the range of the beam reflected by the unit reflecting surface.

The invention has the beneficial effects that: when the above structure is adopted, the range of the light beam reflected by the cross-shaped reflecting surface is almost doubled than the range of the light beam reflected by the unit reflecting surface, thereby increasing the reflection range of the beam and ensuring the large-sized beam. Measurement of diameter material.

附图说明 DRAWINGS

Figure 1 is a schematic view of the structure of the present invention;

Figure 2 is a partial structural view of the present invention;

Figure 3 is a partial enlarged view of Figure 2;

4 is a schematic structural view of a seat body 31 and a gasket;

Figure 5 is a schematic structural view of the seat body 32 and the gasket;

Figure 6 is a schematic view showing the structure of the claw;

Figure 7 is a schematic view showing the structure of the pressing plate.

具体实施方式 detailed description

A mirror having two reflecting surfaces arranged in a cross shape, wherein the reflected light of the reflecting surface is in the same direction and parallel to each other, and the range of the light reflected by the reflecting surface arranged in a cross shape is in a range Greater than the range of the beam reflected by the unit's reflective surface.

A further preferred embodiment of the present invention is that the mirror comprises two

retroreflective sheets

10, 20, and the

reflective sheets

10, 20 are arranged in a mirror-cross arrangement, and the

reflective sheets

10 and 20 arranged in a crosswise manner are specularly reflected. The beam has a range greater than the range of the beam reflected by the unit mirror, as shown in Figure 1-2. When the invention is applied, the reflected light reflected by the reflecting surface is directed to the position of the material of the rod to be tested, and the reflecting surface is parallel to the traveling direction of the material of the rod material to be tested, and the parallel beam emitting source corresponds to the two reflecting

sheets

10, 20 Each set is arranged, that is, the two

retroreflective sheets

10, 20 respectively correspond to a set of parallel beam emitting sources.

Further, in consideration of the parallel beam for measurement, generally, the radial region requirement is generally large, and the axial direction thereof is not required much, as long as it has an appropriate region range, and therefore, the two

retroreflective sheets

10 and 20 of the present invention. The mirror shape is substantially the same as the rectangular cross-sectional shape of the parallel beam, and the mirror length direction of the lens is correspondingly aligned with the longitudinal direction of the parallel beam, so as to ensure reliable reflection of the beam while ensuring The small occupation of the internal space of the measuring instrument also reduces the cost, while the suspension end of the mirror is smaller than the distance from the mounting base. This arrangement is especially suspended when the mounting base is vertically arranged and in a rotating state. The reduction of the length is advantageous for reducing the bending moment of the rotating shaft portion when it is rotated, as shown in Fig. 1, and at the same time, the short sides of the reflecting

sheets

10, 20 are close to each other and arranged in a cross shape.

Further, the

mirrors

10 and 20 are symmetrically arranged in a crosswise manner, and the angle between the two mirrors is 90 degrees, as shown in FIG. When the invention is used, the two

reflective sheets

10, 20 respectively steer two opposite parallel beams emitted by the parallel beam emitting source to 90 degrees, and the parallel beams which become the same direction are irradiated onto the object to be measured, thereby providing imaging measurement. The light source, at the same time, because the mirrors of the two

retroreflective sheets

10, 20 are symmetrically arranged, the corresponding two parallel beam emitting sources are also bound to be symmetrically arranged, when the invention is applied to a rotary caliper or the like. It also guarantees the correct weight when it is installed and the rotation is guaranteed.

As a further preferred embodiment of the present invention, in order to achieve reliable fixing of the

retroreflective sheetings

10, 20 on the mounting substrate, the mirror further includes a base 30 for clamping and fixing the

retroreflective sheetings

10, 20, as shown in FIGS. 1-2 and 4-5.

Further, the

retroreflective sheetings

10, 20 are rectangular parallelepipeds. Since the incident beam is irradiated to the reflecting surfaces of the reflecting

sheets

10 and 20 in two ways, the side of the two reflecting

sheets

10 and 20 is attached to ensure that the reflected light beam can achieve the measurement of the smaller diameter wire rod. Set to ensure that the two parallel beams reflected from the mirror can produce a coincident section, which ensures that the diameter of the wire material to be tested is smaller and will be within the range of the optical imaging area measured together, as shown in Figure 1. In order to achieve reliable fixing between the

retroreflective sheetings

10, 20 and the base 30, the base 30 is provided with two

base bodies

31, 32 corresponding to the

retroreflective sheetings

10, 20, and grooves are formed on the reflecting

sheets

10, 20 311 and 321 , the

reflective sheets

10 and 20 are disposed in the grooves 311 and 321 as shown in FIG. 4-5 .

In order to further achieve reliable fixing between the

retroreflective sheetings

10, 20 and the base 30, the recesses 311, 321 are disposed through the

base bodies

31, 32 along the slot length direction thereof, and the lengths of the recesses 311, 321 and the

reflective sheets

10, 20 The length of the

brackets

31, 32 is provided at both ends of the recesses 311, 321 with claws 40 for fixing the opposite end faces of the

reflectors

10, 20, and one end of the claws 40 is fixed on the

bases

31, 32. The other end of the claw 40 is abutted against the mirror surfaces of the two ends of the

reflectors

10, 20. The middle portion of the claw 40 abuts against both end faces of the

reflectors

10, 20, so that the latch of the claw 40 abuts on the reflector 10, The end of the mirror surface 20 and the groove bottoms of the grooves 311 and 321 constitute a limit fit for restricting the movement of the mirror in the vertical direction of the mirror surface, and the inner side of the claw 40 and the groove walls of the grooves 311 and 321 realize the mirror edge. The limit action of moving the mirror in parallel direction is shown in Figures 1-2 and 4-5.

As a further preferred embodiment of the present invention, the

reflective sheets

10 and 20 are disposed between the opposite ends of the mirror surface and the grooves 311 and 321 and between the two ends of the

mirrors

10 and 20 and the inner side of the claw 40. The spacer 50, wherein the spacer 50 disposed here is effective to limit the movement of the mirror in the vertical direction of the mirror, and also helps to position the

reflective sheets

10 and 20 at both ends, thereby being the

reflective sheets

10, 20 and the base 30. A reliable connection between the two provides a guarantee, as shown in Figure 2-5.

Further, the claw 40 has a sheet shape bent at one end, and the claw 40 is bolted to the

seat bodies

31 and 32 at both ends of the grooves 311 and 321 , and the claw 40 and the nut of the bolt are interposed between the claws 40 . A pressure plate 60 for pressing the jaws 40 is also provided. Here, the pressing plate 60 is mainly used for pressing between the inner side of the straight section of the claw 40 and the end faces of the

seat bodies

31 and 32 at the grooves 311 and 321 as shown in FIGS. 1-2 and 7.

Further, as shown in FIGS. 1-3 and 6, the claw 40 of the present invention is integrally formed by bending a thin plate, and the claw 40 includes a flat plate portion 41 and a hook groove portion 42, and the hook groove portion 42 The edge 421 is pressed against the mirror surfaces on both ends of the

retroreflective sheetings

10, 20, and the mirror surface of the two ends of the

retroreflective sheetings

10, 20 is timely pressed by the elasticity provided by the hook groove portion 42, and the edge 421 is in surface contact. The method is pressed against the spacer 50, and then the surface of the spacer 50 is brought into contact with the both ends of the

reflective sheets

10, 20, thereby ensuring the two reflective sheets by ensuring the pressure equalization at both ends of the

reflective sheets

10, 20. When the 10, 20 is clamped, the mirror surface is straight.

As shown in FIG. 1-2 and FIG. 4-5, the intersections of the two

retroreflective sheets

10 and 20 are in contact with each other, and the lengths of the

groove groove walls

311a and 321b on the

seat bodies

31 and 32 at the fitting portion are smaller than that of the opposite portions. The length of the

groove groove walls

311b, 321a on the other side of the fitting portion, and at the same time, the groove groove wall 311a coincides with the length of both the groove groove walls 321b, thereby passing through the groove groove wall 311a and the groove wall 321b The space reserved after the cooperation is used to achieve the purpose of cross-facing the sides of the two

reflective sheets

10 and 20.

Claims

A mirror is characterized in that: the mirror is provided with two reflecting surfaces arranged in a cross shape, and the reflected light of the reflecting surface is in the same direction and parallel to each other, and the reflecting surface is arranged in a cross shape. The reflected beam has a range greater than the range of the beam reflected by the unit's reflective surface.
The mirror according to claim 1, wherein the mirror comprises two reflecting sheets (10, 20), and the reflecting sheets (10, 20) are arranged in a mirrored manner. The specularly reflected beams of the cross-shaped reflectors (10, 20) have a range greater than the range of beams reflected by the unit specular surface.
The mirror according to claim 2, characterized in that the mirror faces of the two retroreflective sheets (10, 20) are each rectangular, and one end of the short side is close to and arranged in a cross shape.
The mirror according to claim 2 or 3, characterized in that the mirrors of the two reflecting sheets (10, 20) are arranged symmetrically, and the angle between the two mirrors is 90 degrees.
The mirror according to claim 1, characterized in that said mirror further comprises a base (30) for holding and fixing the retroreflective sheeting (10, 20).
The mirror according to claim 1 or 5, wherein the reflecting sheet (10, 20) is a rectangular parallelepiped and one side of the two reflecting sheets (10, 20) is fitted to each other, and the base (30) Corresponding to the retroreflective sheeting (10, 20), two seats (31, 32) are provided, and grooves (311, 321) matching the outer shape of the reflecting sheet (10, 20) are provided thereon, and the reflecting sheet (10) And 20) are disposed in the grooves (311, 321).
The mirror according to claim 6, wherein the grooves (311, 321) are disposed through the seat body (31, 32) along the groove length direction, and the grooves (311, 321) are provided. The length coincides with the length of the retroreflective sheeting (10, 20), and the seat body (31, 32) is provided at both ends of the recess (311, 321) with claws for fixing both end faces of the retroreflective sheeting (10, 20) (40) One end of the claw (40) is fixed on the base body (31, 32), and the other end of the claw (40) is abutted against the mirror surface on both ends of the retroreflective sheeting (10, 20), and the claw (40) The middle portion abuts on both end faces of the reflectors (10, 20).
The mirror according to claim 7, wherein the reflecting sheet (10, 20) is opposite to the mirror end side of the groove (311, 321) and the reflecting sheet (10, 20) A gasket (50) is provided between both ends of the mirror surface and the inner side surface of the claw (40).
The mirror according to claim 7, wherein the claw (40) has a sheet shape bent at one end, and the claw (40) is fixed to the groove (311, 321). On the seat body (31, 32) of the end, a pressing plate (60) for pressing the claw (40) is further disposed between the claw (40) and the nut of the bolt.
The mirror according to claim 7, wherein said claw (40) is integrally formed by bending a thin plate, and said claw (40) includes a flat plate portion (41) and a hook groove portion (42). The edge (421) of the hook groove portion (42) is pressed against the mirror surface of both ends of the retroreflective sheeting (10, 20).
The mirror according to claim 7, wherein the intersection of the two reflecting sheets (10, 20) is in contact with each other, and the groove groove on the seat body (31, 32) at the fitting portion The length of the wall (311a, 321b) is smaller than the length of the groove groove wall (311b, 321a) with respect to the other side of the fitting portion, and the groove groove wall (311a) and the groove groove wall (321b) The length matches.