CN103054557A

CN103054557A - Moire image device

Info

Publication number: CN103054557A
Application number: CN201310006092XA
Authority: CN
Inventors: 白宇; 王军; 原林
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-01-08
Filing date: 2013-01-08
Publication date: 2013-04-24
Anticipated expiration: 2033-01-08
Also published as: CN103054557B

Abstract

The invention discloses a moire image device which comprises a detection chamber. An imaging grating is disposed on one side of the detection chamber. A folding dark box matches with the imaging grating. A folding dark box operating mechanism, a light source and an imager match with the folding dark box. The distance from the human body to the imager and the grating is adjusted indirectly by adjusting the position of the folding dark box, so that more accurate moire images are obtained directly without changing the position of the human body.

Description

The moire topography imaging device

Technical field

The present invention relates to a kind of moire topography imaging device, relate in particular to a kind of adjustable moire topography imaging device.

Background technology

Existing moire imaging is to utilize directional light to form the deformed grating image by grating at body surface, interfere generation moire contour map picture by deformed grating image and overlapped formation of benchmark grating, but the metamorphosis of Accurate Measurement body surface, the moire imaging technique is applied on the clinical medicine, can have complementary action with the X-ray inspection, can remedy the X-ray line changes lack of identification to soft tissue and human body contour outline shortcoming, medical statistics shows, for common the spraining of lower back, muscle sprain, little joint disorders and most of intervertebral disk hernia case; diseased region is to come from the spasm of muscle and the small displacement in little joint; general X-ray is difficult to find to some extent; adopt in recent years MRI and CT imaging effect also dissatisfied; and the obvious sign of performance of this class patient institute; such as muscle spasm; spinous process is partially askew; physiological bending changes; lateral symmetry such as sexually revises at the variation that all can cause configuration of surface; moire topography can show clearly; this is the strong point of moire topography just, and the high line ripple of image demonstration is easy to identify and position quantitative analysis.The key point of moire imaging is to shoot clearly moire topography, key is to allow location-appropriate between radiation source and the human body, and grating will be under the image-forming condition of the best, this comprises: the determining of the preparation of light source and installation site, determining of camera distances and the time speed of taking a picture, so the position between light source and sensing chamber and the imager and distance are of paramount importance main points, existing generally all is to reach the optimum position by adjusting the position of human body in sensing chamber, but the darkroom is big or small limited, for different people, the optimum position might be able to not be realized accurately, be affected the accuracy of moire imaging.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art and a kind of moire topography imaging device that can multi-facetedly be adjusted to the image position is provided.

For achieving the above object, the present invention has adopted following technical proposals:

This moire topography imaging device includes sensing chamber, is provided with Imaging grating in a side of sensing chamber, is equipped with bellows with Imaging grating, cooperates bellows to be provided with bellows operating mechanism and a light source and an imager.

Described Imaging grating is spaced apart 2-3mm.

Described bellows operating mechanism includes an expansion link that is arranged at bellows top, and this extensible member is connected with bellows by a sliding part.

Described bellows operating mechanism also includes the flexible rope that be arranged in parallel with expansion link, should link to each other with expansion link by flexible rope one end, and the fixed pulley that is arranged at expansion link one end, the flexible rope other end passes fixed pulley, and this expansion link is connected with bellows by a sliding part.

1. described bellows operating mechanism also includes one and is arranged on the bellows the relatively motor of the fixed pulley position other end, and the outfan of motor is connected with the flexible other end of restricting.

Described operating mechanism also includes automatic operation device, and the motor of described actuation means and flexible camera bellows is electrical connected, and includes control panel, is provided with on the control panel to stretch switch, indentation switch and observation window.

Described bellows includes some collapsible section, and itself and sensing chamber's Joint section diameter are large, and be little away from sensing chamber's section diameter, and next section can be held by adjacent the preceding paragraph when folding.

Described sensing chamber is provided with exhaust fan on the top, and illuminating lamp.

By technique scheme, thus can be by adjusting the position of bellows, the distance between Indirect method human body and imager and the grating, thus can not need the shift in position of human body, directly just obtain more accurately moire topography.

Description of drawings

Fig. 1 is sensing chamber's schematic perspective view of this invention moire topography imaging device.

Schematic perspective view when Fig. 2 is the flexible camera bellows indentation of this invention moire topography imaging device.

Fig. 3 is the schematic perspective view of the flexible camera bellows of Fig. 2 when trailing.

Fig. 4 is this grating image sketch map.

Fig. 5 is another embodiment sketch map of invention moire topography imaging device.

The specific embodiment

Below in conjunction with accompanying drawing further instruction is made in this invention.

Shown in Fig. 1-4, this moire topography imaging device, include sensing chamber 1, side in sensing chamber is provided with Imaging grating 2, be equipped with bellows 3 with Imaging grating, be provided with bellows operating mechanism and a light source 4 and an imager 5 at bellows, described bellows includes some collapsible section specifically, itself and sensing chamber's Joint section diameter are large, and be little away from sensing chamber's section diameter, and next section can be held by adjacent the preceding paragraph when folding, and described Imaging grating is spaced apart 3mm, simultaneously be provided with exhaust fan 8 on described sensing chamber top, illuminating lamp, but and the door of folding to make things convenient for the tester to pass in and out; Described bellows operating mechanism includes an expansion link 6 that is arranged at bellows top, be provided with a sliding part 7 on the expansion link, this sliding part one end is connected with expansion link, the other end is connected with bellows, and light source and an imager are generally on the end face that photographing unit is arranged at flexible camera bellows; When in use, by manual expansion link is stretched, by the drive of sliding part bellows is stretched or shrinks, thereby the position between adjustment light source, photographing unit and the detected human body obtains accurately clearly imaging.

As shown in Figure 5, sketch map when automatically controlling for this invention, be with the first specific embodiment difference, described bellows operating mechanism also includes with expansion link 61 and is arranged with flexible rope 62 in parallel, and the fixed pulley 63 that is arranged at expansion link one end, a same sliding part 71 1 ends are connected with expansion link, the other end is connected with flexible camera bellows, described bellows operating mechanism also includes one and is arranged on the bellows the relatively motor 64 of the fixed pulley other end, flexible rope one end is connected with expansion link, the outfan that the other end passes fixed pulley and motor be connected, described operating mechanism can also be provided with automatic operation device in addition, the motor of described actuation means and flexible camera bellows is electrical connected, include control panel, be provided with the stretching, extension switch on the control panel, indentation switch and observation window etc., in concrete the use, can any position by adjusting the switch of automatic operation device, by the flexible rope of driven by motor, indirectly drive again stretching or contracting of expansion link, pass through again connector, realization is to the adjustment of flexible camera bellows retractility, indirectly adjust light source, position between photographing unit and the detected human body obtains accurately clearly imaging.

Pass through technique scheme, compared with prior art, can be by adjusting the position of bellows, the distance between Indirect method human body and imager and the grating, thereby the shift in position that can not need human body directly just obtains more accurately clearly moire topography.

Claims

1. moire topography imaging device, include sensing chamber, side in sensing chamber is provided with Imaging grating, it is characterized in that: be equipped with bellows with Imaging grating, cooperate bellows to be provided with bellows operating mechanism and a light source and an imager.

2. moire topography imaging device as claimed in claim 1, it is characterized in that: described Imaging grating is spaced apart 2-3mm.

3. moire topography imaging device as claimed in claim 1 is characterized in that: described bellows operating mechanism includes an expansion link that is arranged at the bellows top, and this expansion link is connected with bellows by a sliding part.

4. want 3 described moire topography imaging devices such as right, it is characterized in that: described bellows operating mechanism also includes the flexible rope that be arranged in parallel with expansion link, should link to each other with expansion link by flexible rope one end, and the fixed pulley that is arranged at expansion link one end, the flexible rope other end passes fixed pulley, and this expansion link is connected with bellows by a sliding part.

5. moire topography imaging device as claimed in claim 4 is characterized in that: described bellows operating mechanism also includes one and is arranged on the bellows the relatively motor of the fixed pulley position other end, and the outfan of motor is connected with the flexible other end of restricting.

6. moire topography imaging device as claimed in claim 5, it is characterized in that: described operating mechanism also includes automatic operation device, the motor of described actuation means and flexible camera bellows is electrical connected, include control panel, be provided with on the control panel and stretch switch, indentation switch and observation window.

7. such as the arbitrary described moire topography imaging device of claim 1-6, it is characterized in that: described bellows includes some collapsible section, itself and sensing chamber's Joint section diameter are large, and be little away from sensing chamber's section diameter, and next section can be held by adjacent the preceding paragraph when folding.

8. such as the arbitrary described moire topography imaging device of claim 1-6, it is characterized in that: described sensing chamber is provided with exhaust fan on the top, and illuminating lamp.