阅读说明：本技术 一种用于线结构光三维测量的设备 (Equipment for three-dimensional measurement of line structured light ) 是由 张志平 殳峰 王宁 张文华 于 2020-10-22 设计创作，主要内容包括：本发明涉及三维测量领域,且公开了一种用于线结构光三维测量的设备,包括外框,外框的前侧壁面左右两端均开设有摄像孔,外框的前侧壁面中间位置开设有投影孔,外框的顶部壁面后侧开设有圆形孔,外框的顶部设置有第一轴承,第一轴承的侧壁与外框上圆形孔对应位置壁面固定连接,外框的内部设置有摄像机。本发明中,该用于线结构光三维测量的设备,再通过三角测量原理得出拍摄的物品的三维特征,通过旋转转板,使两组收纳棒旋转,两组收纳棒旋转,使两组滚轮之间的胶片上的黑色颜料的密度不同,密度越大,两组摄像机拍摄出的黑色阴影也就越多,相同的阴影的部分也就越多,计算物品的三维特征也就越精准,达到了方便更换格雷码图片的效果。(The invention relates to the field of three-dimensional measurement and discloses a line structured light three-dimensional measurement device which comprises an outer frame, wherein camera shooting holes are formed in the left end and the right end of the front side wall surface of the outer frame, a projection hole is formed in the middle of the front side wall surface of the outer frame, a circular hole is formed in the rear side of the top wall surface of the outer frame, a first bearing is arranged at the top of the outer frame, the side wall of the first bearing is fixedly connected with the wall surface of the outer frame at the position corresponding to the circular hole, and a camera is arranged inside the outer. According to the equipment for the line structured light three-dimensional measurement, the three-dimensional characteristics of a shot object are obtained through the triangulation principle, the two groups of containing rods rotate through the rotating plate, the density of black pigment on a film between the two groups of rollers is different, the density is higher, black shadows shot by the two groups of cameras are more, the same shadow part is more, the three-dimensional characteristics of the object are more accurately calculated, and the effect of conveniently replacing Gray code pictures is achieved.)

1. An apparatus for line structured light three-dimensional measurement, comprising an outer frame (1), characterized in that: the camera shooting device is characterized in that camera shooting holes (2) are respectively formed in the left end and the right end of the front side wall surface of the outer frame (1), a projection hole (3) is formed in the middle position of the front side wall surface of the outer frame (1), a circular hole is formed in the rear side of the top wall surface of the outer frame (1), a first bearing (4) is arranged at the top of the outer frame (1), a camera (5) is arranged in the outer frame (1), two groups of limiting plates (6) are respectively arranged at the left end and the right end, close to the rear side, of the middle position in the outer frame (1), circular holes are formed in the top wall surfaces of the four groups of limiting plates (6), two groups of containing rods (7) are arranged in the outer frame (1), a film (8) is arranged in the outer frame (1), a lighting lamp (11) is arranged in the outer frame (1), a first connecting rod (13) is arranged outside the outer frame (, the side wall of the first connecting rod (13) is fixedly connected with the wall surface of the position corresponding to the upper hole of the first bearing (4) on the top wall surface of the outer frame (1), the top wall surface of the first connecting rod (13) is fixedly provided with a rotating plate (14), the side wall of the rotating plate (14) is provided with convex marks, the inner part of the outer frame (1) is provided with a first gear (15), the wall surface of the position corresponding to the upper hole of the first gear (15) is fixedly connected with the bottom end of the side wall of the first connecting rod (13), the top wall surfaces of the two groups of limiting plates (6) close to the top are fixedly provided with second connecting rods (16), the inner part of the outer frame (1) is provided with two groups of second bearings (17), the wall surfaces of the positions corresponding to the upper holes of the two groups of second bearings (17) are respectively fixedly connected with the positions corresponding to the upper side walls of the two groups of second connecting rods (16), the inner part of the outer frame (1) is provided with two groups of, be provided with third gear (19) between two sets of second gear (18), fixed mounting has second bearing (17) on the hole corresponds the position wall on third gear (19), fixed mounting has second connecting rod (16) on the hole corresponds the position wall on second bearing (17), the top wall of three sets of second connecting rod (16) corresponds position fixed connection with frame (1) inside top wall respectively, both ends intermeshing about two sets of second gear (18) all with third gear (19), head rod (13) and the front end of third gear (19) intermeshing, circular through-hole has been seted up to the bottom wall of frame (1), fixed mounting has third bearing (20) on the circular through-hole corresponds the position wall on frame (1), hole corresponds position wall fixed mounting has bull stick (21) on third bearing (20), the bottom wall fixed mounting of bull stick (21) has backup pad (22).

2. The apparatus of claim 1, wherein: the novel film projector is characterized in that fixing rods (9) are fixedly mounted at the left end and the right end of the front side of the wall face of the bottom inside the outer frame (1), idler wheels (10) are sleeved on the side walls of the fixing rods (9), the rear side wall faces of the positions, corresponding to the side walls of the idler wheels (10), of the films (8) are attached to the corresponding positions of the side walls of the idler wheels (10), and the front side wall faces of the portions, attached to the front ends of the side walls of the two sets of idler wheels (10), of the films (8) correspond to.

3. The apparatus of claim 1, wherein: the bottom wall of the illuminating lamp (11) is fixedly connected with the inner bottom wall of the outer frame (1), the inner part of the outer frame (1) is provided with a concave lens (12), the bottom wall of the concave lens (12) is fixedly connected with the inner bottom wall of the outer frame (1), the rear side wall of the concave lens (12) corresponds to the output end of the illuminating lamp (11), and the front side wall of the concave lens (12) corresponds to the gap between the two sets of rollers (10).

4. The apparatus of claim 1, wherein: three sets of spacing grooves (23) have been seted up to the bottom wall of backup pad (22), and three sets of spacing grooves (23) all are the trapezoidal form, and a lateral wall that is close to the central point on three sets of spacing grooves (23) and a lateral wall that keeps away from the central point have all been seted up and have been changeed hole (24), correspond the equal fixed mounting in position wall on changeing hole (24) of three sets of spacing grooves (23) inside and have fourth bearing (25), and the bottom of backup pad (22) is provided with three sets of bracing pieces (26).

5. The apparatus of claim 1, wherein: three group the cover has spacing frame (28) respectively on the lateral wall of bracing piece (26), equal fixed mounting has round bar (29) on the lateral wall of three spacing frames of group (28), and three spacing frames of group (28) fixed connection of group (29) get together, and multiunit circular port has all been seted up to the inside wall of three spacing frames of group (28), and three spacing frames of group (28) inside all is provided with multiunit roof (30), and the inside multiunit roof (30) of three spacing frames of group (28) correspond each other with the inside circular port of three spacing frames of group (28) respectively.

6. The apparatus of claim 1, wherein: the side wall of first bearing (4) corresponds position wall fixed connection with circular port on frame (1), and camera (5) are total two sets ofly, and two sets of camera (5) are located frame (1) inside left and right sides respectively, and the output of two sets of camera (5) corresponds each other with two sets of holes of making a video recording (2) respectively.

7. The apparatus of claim 1, wherein: two sets of accomodate the lateral wall of stick (7) respectively with frame (1) inside left and right sides two sets of limiting plate (6) go up the corresponding position wall fixed connection of circular port, two sets of circular ports have been seted up to the inside bottom wall of frame (1), and equal fixed mounting has first bearing (4) on the frame (1) inside two sets of circular ports correspond the position wall, and two sets of lateral wall bottoms of accomodating stick (7) correspond position wall fixed connection with frame (1) inside two sets of first bearing (4) last pore respectively.

8. The apparatus of claim 1, wherein: the back side wall surface of the film (8) is coated with black pigment, the closer to the left side, the more dense and thinner the black part is, and the left end and the right end of the film (8) are respectively wound on the side walls of the two groups of accommodating rods (7).

9. The apparatus of claim 4 for line structured light three dimensional measurement, wherein: the upper end and the lower end of the side wall of the three groups of supporting rods (26) are fixedly provided with limiting rods (27), and the side walls of the two groups of limiting rods (27) on the three groups of supporting rods (26) are fixedly connected with the wall surfaces of the corresponding positions of the upper holes of the two groups of fourth bearings (25) in the limiting grooves (23) respectively.

10. The apparatus of claim 5, wherein: three group all be provided with spring (31) inside the inside multiunit circular port of spacing frame (28), the both ends of the inside spring (31) of three group spacing frame (28) are kept away from a lateral wall face of central point and a lateral wall face fixed connection that the center was kept away from to the inside circular port of three group spacing frame (28) with roof (30) of three group spacing frame (28) inside respectively.

Technical Field

The invention relates to the field of carton packaging, in particular to a three-dimensional measuring device for line structured light.

Background

Three-dimensional measurement, namely, the measured object is measured in all directions as the name implies, and the three-dimensional coordinate measurement data of the measured object is determined. The measuring principle is divided into four aspects of distance measurement, angular displacement, scanning and orientation. The instruments developed according to the three-dimensional technical principle include three measuring instruments, namely a photographing type (structured light) three-dimensional scanner, a laser three-dimensional scanner and a three-coordinate measuring machine.

The existing three-dimensional measurement in the market at present makes the article that needs to be measured present the shadow through light on the gray code picture, takes two cameras to shoot this article from different places, finds out the same place in the picture, obtains the three-dimensional characteristic of the article shot through the triangulation principle, but when shooing, needs the frequent change different density gray code pictures, reduces work efficiency. To this end, we propose an apparatus for line structured light three-dimensional measurement.

Disclosure of Invention

The present invention mainly solves the technical problems existing in the prior art, and provides a three-dimensional measurement device for line structured light.

In order to achieve the purpose, the invention adopts the following technical scheme that the equipment for line structure light three-dimensional measurement comprises an outer frame, wherein camera shooting holes are formed in the left end and the right end of the front side wall surface of the outer frame, a projection hole is formed in the middle position of the front side wall surface of the outer frame, a circular hole is formed in the rear side of the top wall surface of the outer frame, a first bearing is arranged at the top of the outer frame, the side wall of the first bearing is fixedly connected with the wall surface of the position, corresponding to the circular hole, on the outer frame, two groups of cameras are arranged inside the outer frame, are respectively located on the left side and the right side of the inner frame, the output ends of the two groups of cameras respectively correspond to the two groups of camera shooting holes, two groups of limiting plates are arranged at the left end and the right end, close to the rear side, of the middle position, of the inner parts of the outer frame, are respectively provided with The surface is fixedly connected, the inner bottom wall surface of the outer frame is provided with two groups of circular holes, the wall surfaces corresponding to the two groups of circular holes in the outer frame are fixedly provided with first bearings, the bottom ends of the side walls of the two groups of containing rods are respectively fixedly connected with the wall surfaces corresponding to the upper holes of the two groups of first bearings in the outer frame, the inner part of the outer frame is provided with a film, the rear side wall surface of the film is coated with black pigment, the parts coated with black on the left side are denser and thinner, the left end and the right end of the film are respectively wound on the side walls of the two groups of containing rods, the left end and the right end of the front side of the inner bottom wall surface of the outer frame are respectively and fixedly provided with a fixed rod, the side wall of the fixed rod is sleeved with a roller, the rear side wall surface at the upper corresponding position of the film is mutually attached with the corresponding position of the side wall, the bottom wall surface of the illuminating lamp is fixedly connected with the bottom wall surface inside the outer frame, a concave lens is arranged inside the outer frame, the bottom wall surface of the concave lens is fixedly connected with the bottom wall surface inside the outer frame, the rear side wall surface of the concave lens corresponds to the output end of the illuminating lamp, the front side wall surface of the concave lens corresponds to the gap between the two groups of rollers, a first connecting rod is arranged outside the outer frame, the bottom end of the first connecting rod extends into the outer frame through a circular hole on the top wall surface of the outer frame, the side wall of the first connecting rod is fixedly connected with the wall surface of the position corresponding to the hole on the first bearing on the top wall surface of the outer frame, a rotating plate is fixedly arranged on the top wall surface of the first connecting rod, the side wall of the rotating plate is provided with a convex mark, a first gear is arranged inside the outer frame, the wall surface of the position corresponding to the hole on the first gear is fixedly connected, two groups of second bearings are arranged in the outer frame, the wall surfaces at the positions corresponding to the holes on the two groups of second bearings are respectively fixedly connected with the corresponding positions of the upper side walls of the two groups of second connecting rods, two groups of second gears are arranged in the outer frame, the wall surfaces at the positions corresponding to the holes on the two groups of second gears are respectively fixedly connected with the upper side walls of the two groups of second bearings, a third gear is arranged between the two groups of second gears, the wall surfaces at the positions corresponding to the holes on the third gear are fixedly provided with second bearings, the wall surfaces at the positions corresponding to the holes on the second bearings are fixedly provided with second connecting rods, the top wall surfaces of the three groups of second connecting rods are respectively fixedly connected with the corresponding positions of the top wall surfaces in the outer frame, the two groups of second gears are mutually meshed with the left end and the right end of the third gear, the first connecting rods are mutually meshed with the front ends of the third gears, the pore pair has the bull stick corresponding to position wall fixed mounting on the third bearing, the bottom wall fixed mounting of bull stick has the backup pad, three sets of spacing grooves have been seted up to the bottom wall of backup pad, three sets of spacing grooves all are trapezoidal form, a side wall that is close to the central point on three sets of spacing grooves and a side wall of keeping away from the central point have all been seted up and have been changeed the hole, correspond the equal fixed mounting of position wall on the commentaries on classics hole of three sets of spacing inslot portions and have the fourth bearing, the bottom of backup pad is provided with.

Preferably, the left end and the right end of the top end of the side walls of the three groups of supporting rods are fixedly provided with limiting rods, and the side walls of the two groups of limiting rods on the three groups of supporting rods are fixedly connected with the wall surfaces of the corresponding positions of the holes on the two groups of fourth bearings in the limiting grooves respectively.

As preferred, three group the cover has spacing frame respectively on the lateral wall of bracing piece, and equal fixed mounting has the round bar on three group spacing frame's the lateral wall, and three group round bars get up three group spacing frame fixed connection, and multiunit circular port has all been seted up to three group spacing frame's inside wall.

Preferably, three groups the inside multiunit roof that all is provided with of spacing frame, the inside multiunit roof of three groups of spacing frame respectively with three inside circular ports of group correspond each other, the inside multiunit circular port of three inside groups of spacing frame all is provided with the spring.

Preferably, two ends of the springs in the three groups of limiting frames are fixedly connected with one side wall surface, away from the central point, of the top plate in the three groups of limiting frames and one side wall surface, away from the center, of the circular holes in the three groups of limiting frames respectively.

Advantageous effects

The invention provides a three-dimensional measurement device for line structured light. The method has the following beneficial effects:

(1) the equipment for three-dimensional measurement of the line structured light aims at two groups of camera holes to an article to be shot, the illuminating lamp is turned on, the light emitted by the illuminating lamp irradiates on the film, the article to be shot presents black shadow, the two groups of cameras take the picture, the pictures shot by the two groups of cameras are all provided with the place with the black shadow, the place with the same black shadow in the two pictures is found out, then the three-dimensional characteristic of the shot article is obtained by the triangulation principle, through rotatory commentaries on classics board, make two sets of sticks of accomodating rotatory, two sets of sticks of accomodating are rotatory, make the density of black pigment on the film between two sets of gyro wheels different, and density is big more, and the black shadow that two sets of cameras shot just more, and the part of the same shadow is just also more, and the three-dimensional characteristic of calculating article is just more accurate just, has reached the effect of conveniently changing the gray code picture.

(2) This be used for three-dimensional measuring equipment of line structure light, the inside of frame is provided with two sets of gyro wheels, and two sets of gyro wheels all overlap on the lateral wall of dead lever, and the rear wall face of film and the lateral wall of gyro wheel are laminated each other, make the film with more smooth presenting out, and the gyro wheel is cylindricly, has avoided the lateral wall of film to be taken place by the condition of bending.

(3) This a be used for three-dimensional measuring equipment of line structure light, the inside of frame is provided with concave lens, and concave lens scatters the light that the light sent, and rethread projection hole shines away, has improved the irradiation range of light, makes the rear wall face of film all can be shone by the light, reduces the energy consumption of light, has reached the effect that improves the one-time live time of this equipment.

(4) This a be used for three-dimensional measuring equipment of line structure light, bull stick fixed mounting is on the third bearing, the bottom fixed mounting of bull stick has the backup pad, so the frame can rotate at will on the top of backup pad, three spinal branch vaulting poles of group are in the inside in three group's spacing grooves respectively, the lateral wall both ends of three group's bracing pieces are respectively through two sets of gag lever posts, make the bracing piece fix the inside at the spacing groove, because three group's spacing grooves all are trapezoidal form, so three group's bracing pieces have sufficient rotation space in the inside of spacing groove, the scope that three group's bracing pieces of group can support is just also big more, the.

(5) This be used for three-dimensional measuring equipment of line structure light, the lateral wall of three group's bracing pieces all overlaps there is spacing frame, three group's spacing frames couple together through three group's round bar interconnect, the home range of three group's bracing pieces can be injectd to three group's spacing frames, three group's spacing frame inside is provided with the multiunit roof, the equal fixedly connected with spring of one end at center is kept away from to the multiunit roof, so the roof can be along with the position removal of spacing frame and slope, area of contact between improvement spacing frame and the bracing piece, the effect of the stability that improves three group.

Drawings

FIG. 1 is a front view of the apparatus for line structured light three-dimensional measurement of the present invention;

FIG. 2 is a schematic view of the interior of the outer frame of the present invention;

FIG. 3 is a cross-sectional view of the interior of the housing of the present invention;

FIG. 4 is a top view of the support plate of the present invention;

FIG. 5 is a cross-sectional view of the support plate of the present invention;

FIG. 6 is a front view of the stop frame of the present invention;

fig. 7 is a sectional view of the position-limiting frame of the present invention.

Illustration of the drawings:

the camera comprises an outer frame 1, a camera shooting hole 2, a projection hole 3, a first bearing 4, a camera 5, a limiting plate 6, a storage rod 7, a film 8, a fixing rod 9, a roller 10, a lighting lamp 11, a concave lens 12, a first connecting rod 13, a rotating plate 14, a first gear 15, a second connecting rod 16, a second bearing 17, a second gear 18, a third gear 19, a third bearing 20, a rotating rod 21, a supporting plate 22, a limiting groove 23, a rotating hole 24, a fourth bearing 25, a supporting rod 26, a limiting rod 27, a limiting frame 28, a round rod 29, a top plate 30 and a spring 31.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

Example (b): as shown in FIGS. 1-7, an apparatus for three-dimensional measurement of line structured light comprises an outer frame 1, wherein the outer frame 1 is in a hollow rectangular shape, the left and right ends of the front wall surface of the outer frame 1 are both provided with camera holes 2, two groups of camera holes 2 are both in a circular shape, a projection hole 3 is arranged at the middle position of the front wall surface of the outer frame 1, the projection hole 3 is in a rectangular shape, a circular hole is arranged at the rear side of the top wall surface of the outer frame 1, the top of the outer frame 1 is provided with a first bearing 4, the side wall of the first bearing 4 is fixedly connected with the wall surface of the outer frame 1 at the position corresponding to the circular hole, a camera 5 is arranged inside the outer frame 1, the camera 5 is the disclosed technology, no repeated description is given here, the two groups of cameras 5 are provided, the two groups of cameras 5 are respectively arranged at the left and right sides inside the outer frame 1, the output ends of the two groups of, the top wall surfaces of four groups of limiting plates 6 are all provided with circular holes, two groups of containing rods 7 are arranged inside the outer frame 1, the side walls of the two groups of containing rods 7 are respectively and fixedly connected with the corresponding position wall surfaces of the circular holes on the two groups of limiting plates 6 on the left side and the right side inside the outer frame 1, two groups of circular holes are arranged on the bottom wall surface inside the outer frame 1, first bearings 4 are fixedly arranged on the corresponding position wall surfaces of the two groups of circular holes inside the outer frame 1, the bottom ends of the side walls of the two groups of containing rods 7 are respectively and fixedly connected with the corresponding position wall surfaces of the upper holes of the two groups of first bearings 4 inside the outer frame 1, a film 8 is arranged inside the outer frame 1, the film 8 is a common technology, details are not repeated here, the back wall surface of the film 8 is coated with black pigment, the parts which are closer to the left side and are coated with black are denser, the left end and the right end of the front side of the inner bottom wall of the outer frame 1 are fixedly provided with fixed rods 9, the side wall of the fixed rods 9 is sleeved with rollers 10, the rear side wall surface of the upper corresponding position of the film 8 is mutually jointed with the corresponding position of the side wall of the rollers 10, the front side wall surface of the part of the film 8, which is mutually jointed with the front ends of the side walls of the two groups of rollers 10, is mutually corresponding to the projection hole 3, the inner part of the outer frame 1 is provided with an illuminating lamp 11, the illuminating lamp 11 is a disclosed technology, the detailed description is omitted, the bottom wall surface of the illuminating lamp 11 is fixedly connected with the inner bottom wall surface of the outer frame 1, the inner part of the outer frame 1 is provided with a concave lens 12, the concave lens 12 is a disclosed technology, the detailed description is omitted, the bottom wall surface of the concave lens 12 is fixedly connected with the inner bottom wall surface of the outer frame 1, the rear side, the outer part of the outer frame 1 is provided with a first connecting rod 13, the bottom end of the first connecting rod 13 extends to the inner part of the outer frame 1 through a circular hole on the top wall surface of the outer frame 1, the side wall of the first connecting rod 13 is fixedly connected with the wall surface of the corresponding position of the hole on the first bearing 4 on the top wall surface of the outer frame 1, the top wall surface of the first connecting rod 13 is fixedly provided with a rotating plate 14, the side wall of the rotating plate 14 is provided with convex marks, the inner part of the outer frame 1 is provided with a first gear 15, the wall surface of the corresponding position of the hole on the first gear 15 is fixedly connected with the bottom end of the side wall of the first connecting rod 13, the top wall surfaces of the two groups of limiting plates 6 close to the top are fixedly provided with second connecting rods 16, the inner part of the outer frame 1 is provided with two groups of second bearings 17, the wall surfaces of the corresponding positions, the wall surfaces of the corresponding positions of the holes on the two groups of second gears 18 are respectively fixedly connected with the wall surfaces on the two groups of second bearings 17, a third gear 19 is arranged between the two groups of second gears 18, the wall surfaces of the corresponding positions of the holes on the third gear 19 are fixedly provided with the second bearings 17, the wall surfaces of the corresponding positions of the holes on the second bearings 17 are fixedly provided with second connecting rods 16, the top wall surfaces of the three groups of second connecting rods 16 are respectively fixedly connected with the corresponding positions of the top wall surfaces inside the outer frame 1, the two groups of second gears 18 are mutually meshed with the left end and the right end of the third gear 19, the front ends of the first connecting rod 13 and the third gear 19 are mutually meshed, the bottom wall surface of the outer frame 1 is provided with a circular through hole, the wall surface of the corresponding position of the circular through hole on the outer frame 1 is fixedly provided with a third bearing 20, the wall surface of the corresponding position of, three sets of limiting grooves 23 are formed in the bottom wall surface of the supporting plate 22, the three sets of limiting grooves 23 are all in a trapezoidal shape, rotating holes 24 are formed in one side wall surface close to the central point and one side wall surface far away from the central point on the three sets of limiting grooves 23, fourth bearings 25 are fixedly mounted on corresponding position wall surfaces on the rotating holes 24 in the three sets of limiting grooves 23, three sets of supporting rods 26 are arranged at the bottom of the supporting plate 22, limiting rods 27 are fixedly mounted at the left end and the right end of the top end of the side wall of each supporting rod 26, the side walls of the two sets of limiting rods 27 on the three sets of supporting rods 26 are respectively fixedly connected with corresponding position wall surfaces of the holes on the two sets of fourth bearings 25 in the limiting grooves 23, limiting frames 28 are respectively sleeved on the side walls of the three sets of supporting rods 26, round rods 29 are fixedly mounted on the side walls of the three sets of limiting frames, the inside multiunit roof 30 that all is provided with of three spacing frame 28 of group, the inside multiunit roof 30 of three spacing frame 28 of group respectively with three spacing frame 28 inside circular ports of group correspond each other, the inside multiunit circular ports of three spacing frame 28 of group all is provided with spring 31, the both ends of the inside spring 31 of three spacing frame 28 of group respectively with three spacing frame 28 inside roof 30 of group keep away from a lateral wall face of central point and the inside circular ports of three spacing frame 28 of group keep away from a lateral wall face fixed connection at center.

The working principle of the invention is as follows:

when in use, the two groups of camera holes 2 are aligned to the object to be shot, the illuminating lamp 11 is turned on, the light emitted by the illuminating lamp 11 irradiates on the film 8, the object to be shot presents black shadow, the two groups of cameras 5 shoot the image, the two groups of cameras 5 shoot the position where the pictures have black shadow, the position where the same black shadow exists in the two pictures is found out, then the three-dimensional characteristic of the shot object is obtained by the triangulation principle, through rotatory commentaries on classics board 14, make two sets of stick 7 rotations of accomodating, two sets of stick 7 rotations of accomodating make the density of the black pigment on the film 8 between two sets of gyro wheels 10 different, density is big more, and the black shadow that two sets of cameras 5 shot is just more, and the part of the same shadow is just more just, and the three-dimensional characteristic of calculating article is just more accurate just, has reached the effect of conveniently changing the gray code picture.

The inside of frame 1 is provided with two sets of gyro wheels 10, and two sets of gyro wheels 10 all overlap on the lateral wall of dead lever 9, and the rear wall face of film 8 and the lateral wall of gyro wheel 10 laminate each other, make film 8 appear with more smooth, and gyro wheel 10 is cylindricly, and the condition of having avoided film 8's lateral wall to be bent takes place.

The inside of frame 1 is provided with concave lens 12, and concave lens 12 scatters the light that light 11 sent, and rethread projection hole 3 shines away, has improved light 11's irradiation range, makes the rear wall face of film 8 all can be shone by light 11, reduces light 11's energy consumption, has reached the effect that improves this equipment's one-time service time.

Bull stick 21 fixed mounting is on third bearing 20, the bottom fixed mounting of bull stick 21 has backup pad 22, so frame 1 can rotate at will on backup pad 22's top, three group's bracing pieces 26 are in the inside of three group's spacing grooves 23 respectively, three group's bracing piece 26's lateral wall both ends are respectively through two sets of gag lever posts 27, make bracing piece 26 fix the inside at spacing groove 23, because three group's spacing grooves 23 all are trapezoidal form, so three group's bracing pieces 26 have sufficient rotation space in spacing groove 23's inside, the scope that three group's bracing pieces 26 can support is just also big more, the effect of facilitating the use has been reached.

The lateral wall of three group's bracing pieces 26 all overlaps there is spacing frame 28, three group's spacing frames 28 couple together through three group's round bars 29 interconnect, three group's spacing frame 28 can inject the home range of three group's bracing pieces 26, three group's spacing frame 28 inside are provided with multiunit roof 30, the equal fixedly connected with spring 31 of one end at center is kept away from to multiunit roof 30, so roof 30 can be along with spacing frame 28's position removal and slope, area of contact between improvement spacing frame 28 and the bracing piece 26, the effect of the stability that improves three group's bracing pieces 26 and support has been reached.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the invention is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.