CN211723125U - Shooting device for optimizing fundus imaging quality - Google Patents
Shooting device for optimizing fundus imaging quality Download PDFInfo
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- CN211723125U CN211723125U CN201922457666.0U CN201922457666U CN211723125U CN 211723125 U CN211723125 U CN 211723125U CN 201922457666 U CN201922457666 U CN 201922457666U CN 211723125 U CN211723125 U CN 211723125U
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Abstract
The utility model provides an optimize shooting device of eye ground imaging quality, including ophthalmology equipment, support, triaxial moving mechanism and rotary mechanism, ophthalmology equipment includes shell body and camera module, and triaxial moving mechanism installs on the support, and rotary mechanism installs on triaxial moving mechanism, and the shell body is installed on rotary mechanism, and ophthalmology equipment can be rotatory round camera module's optical axis. The device has simple structure, simple operation and low manufacturing cost, can obtain fundus pictures with uniform brightness distribution of two eyes of a tested person, and improves the shooting quality of the fundus pictures.
Description
Technical Field
The utility model relates to an eye ground check out test set technical field, concretely relates to optimize shooting device of eye ground imaging quality.
Background
A fundus camera is a common fundus examination apparatus, and in recent years, with a rapid increase in demand for fundus-related disease screening by basic medical institutions, miniaturized, low-cost fundus cameras are gradually brought to the market. Compared with the traditional large high-end fundus camera, the optical design of the portable fundus camera is greatly simplified, the portable fundus camera often only comprises a main imaging light path and a paraxial point light source illumination light path, and because a certain included angle is formed between the illumination light path and the imaging light path, the center of the imaging area of the fundus and the center of the illumination area can not be completely coincided, so that the problem of uneven illumination of the photographed fundus photo exists. On the other hand, absorption and scattering efficiency of illumination light is significantly different at different parts of the fundus tissue. For example, when the fundus oculi optic disk scatters illumination light more strongly and the other side opposite to the optic disk often scatters very weakly, when the low-cost fundus oculi camera is used to photograph the fundus oculi, when the intensity distribution of the illumination light path is the same as the intensity distribution of the illumination light scattered by the fundus oculi tissue, the luminance of the optic disk area is brighter and the other side corresponding to the optic disk is darker in the photographed photograph. When the intensity distribution between the two is just complementary, the brightness distribution of the shot picture is relatively uniform. However, the positions of the optic discs of the left eye and the right eye of the person are in mirror symmetry, so that the relative positions of the imaging optical path and the illumination optical path of the same camera are fixed, when the imaging optical path and the illumination optical path are used for shooting one eye to obtain a better illumination result, and when the imaging optical path and the illumination optical path are used for shooting the other eye to obtain a poorer brightness distribution result.
Disclosure of Invention
In order to solve the problem that above-mentioned prior art exists, the utility model provides an optimize the shooting device of eye ground imaging quality, the device simple structure, easy operation, the cost of manufacture is low, can obtain the even eye ground photo of two eyes luminance distributions of measurand, improves the shooting quality of eye ground photo.
Realize the utility model discloses the technical scheme that above-mentioned purpose adopted does:
the utility model provides an optimize camera device of eye ground imaging quality, includes ophthalmic apparatus, and ophthalmic apparatus includes shell body and camera module, still includes support, triaxial moving mechanism and rotary mechanism, and triaxial moving mechanism installs on the support, and rotary mechanism installs on triaxial moving mechanism, and the shell body is installed on rotary mechanism, and ophthalmic apparatus can be rotatory round the optical axis of camera module.
The rotating mechanism comprises a rotating motor, a switching piece and a connecting support, the rotating motor is installed on the three-axis movement mechanism through the connecting support, the switching piece is movably installed on the connecting support, and the switching piece is connected with the outer shell and an output shaft of the rotating motor respectively.
The reset mechanism is electrically connected with the rotating motor and can reset the rotating motor to an initial position.
The reset mechanism comprises a groove-shaped photoelectric switch and a limit stop, the groove-shaped photoelectric switch is fixed on the connecting support, the groove-shaped photoelectric switch is electrically connected with the rotating motor, the limit stop is fixed on the outer shell, when the limit stop rotates to trigger the groove-shaped photoelectric switch, the groove-shaped photoelectric switch is disconnected, and the rotating motor returns to the initial position.
Rotary mechanism still include the shaft coupling, the adaptor includes switching axle, locating plate and bearing, the one end of switching axle is connected with a fixed surface of locating plate, the linking bridge is including the connecting seat that is the L type, the connecting seat includes first support diaphragm and first support riser, the bottom of first support riser is connected with one side of first support diaphragm, the switching axle runs through first support riser, and the switching axle passes through the bearing with first support riser and is connected, the output shaft of motor passes through the shaft coupling and is connected with the other end of switching axle.
The connecting support further comprises a second supporting vertical plate, the second supporting vertical plate is located on the inner side of the first supporting plate, the bottom of the second supporting vertical plate is connected with the first supporting transverse plate, the second supporting vertical plate is opposite to the first supporting vertical plate, the rotating motor is fixed on the second supporting vertical plate, an output shaft of the rotating motor penetrates through the second supporting vertical plate, and the coupler is located between the first supporting vertical plate and the second supporting vertical plate.
The groove-shaped photoelectric switch is fixed on the outer surface of the first supporting vertical plate.
The shell body be tubular structure, the shell body includes both ends terminal plate, ophthalmic device still includes objective, objective installs on one of them terminal plate, the locating plate is discoid, on the locating plate was fixed in the surface of another terminal plate, the switching axle was the second step axle, the big terminal surface and the locating plate central authorities of switching axle are connected, little tip and the coupling joint of switching axle, the axis of locating plate and switching axle all with the coincidence of camera module's optical axis.
The three-axis movement mechanism comprises an X-axis sliding table module, a Y-axis sliding table module and a Z-axis sliding table module;
the X-axis sliding table module comprises an X-axis sliding block, an X-axis lead screw, an X-axis motor and an X-axis sliding table, the X-axis sliding table comprises an X-axis sliding rail and two X-axis mounting plates, the X-axis sliding rail is fixed on the support, the two X-axis mounting plates are respectively fixed at two ends of the X-axis sliding rail, two end parts of the X-axis lead screw are respectively mounted on the two X-axis mounting plates, the X-axis sliding block is mounted on the X-axis lead screw, the X-axis sliding block is connected with the X-axis sliding rail in a matched mode, the X-axis motor is fixed on one X-axis mounting plate, and the output;
the Y-axis sliding table module comprises a Y-axis sliding block, a Y-axis lead screw, a Y-axis motor and a Y-axis sliding table, the Y-axis sliding table comprises a Y-axis sliding rail and two Y-axis mounting plates, the middle part of the Y-axis sliding rail is fixed on the X-axis sliding block, the two Y-axis mounting plates are respectively fixed on the two ends of the Y-axis sliding rail, the two ends of the Y-axis lead screw are respectively mounted on the two Y-axis mounting plates, the Y-axis sliding block is mounted on the Y-axis lead screw, the Y-axis sliding block is connected with the Y-axis sliding rail in a matched mode, the Y-axis motor is fixed on one of the Y;
the Z-axis sliding table module comprises a Z-axis sliding block, a Z-axis lead screw, a Z-axis motor and a Z-axis sliding table, the Z-axis sliding table comprises a Z-axis sliding rail, a first Z-axis mounting plate and a second Z-axis mounting plate, the first Z-axis mounting plate and the second Z-axis mounting plate are respectively fixed on two ends of the Z-axis sliding rail, the height of the first Z-axis mounting plate in the Y-axis direction is smaller than that of the second Z-axis mounting plate in the Y-axis direction, the second Z-axis mounting plate is fixed on the Y-axis sliding block, two end parts of the Z-axis lead screw are respectively arranged on the first Z-axis mounting plate and the second Z-axis mounting plate, the Z-axis lead screw is parallel to the optical axis of the camera module, and the output end of the Z-axis motor is connected with one end of the Z-axis screw rod, the Z-axis sliding block is installed on the Z-axis screw rod, the bottom of the first supporting transverse plate is fixed on the Z-axis sliding block, and the first supporting transverse plate is located above the first Z-axis installing plate.
The support be the L type, the support includes second support diaphragm and third support riser, third support riser bottom is connected with one side of second support diaphragm, triaxial moving mechanism is located the second and supports the diaphragm directly over, X axle slide rail is fixed in on the internal surface of third support riser, and X axle lead screw is parallel to second support diaphragm and third support riser respectively.
Compared with the prior art, the beneficial effects and advantages of the utility model reside in that:
1. the device can rotate the fundus camera, when the fundus camera shoots one eye of a tested person, the fundus illumination is in better matching distribution, when the fundus camera shoots the other eye, the fundus camera is rotated, so that the illumination of the other eye is also in better matching distribution, fundus pictures with uniform brightness distribution of two eyes of the tested person are obtained, and the shooting quality of the fundus pictures is improved.
2. The device can also adjust the position of the fundus camera from six directions, i.e., up and down, left and right, and front and back, thereby adjusting the fundus camera to a proper photographing position.
Drawings
Fig. 1 is a schematic structural diagram of a photographing device for optimizing fundus imaging quality.
FIG. 2 is a schematic structural diagram of I in FIG. 1.
Fig. 3 is a schematic structural diagram (different from the angle of fig. 1) of a photographing device for optimizing fundus imaging quality.
Fig. 4 is a front view of fig. 1.
Fig. 5 is a schematic diagram of a fundus camera examining the right eye.
Fig. 6 is a schematic diagram of the fundus camera examining the left eye.
Wherein, 1-fundus camera, 2-first supporting vertical plate, 3-coupler, 4-first supporting transverse plate, 5-rotating motor, 6-transfer shaft, 7-bearing, 8-face support bracket, 9-chin support, 10-testee, 11-forehead support, 12-second supporting vertical plate, 13-third supporting vertical plate, 14-second supporting transverse plate, 15-X shaft slide rail, 16-Y shaft slide rail, 17-Z shaft slide rail, 18-groove photoelectric switch, 19-limit stop block, 20-X shaft slide block, 21-X shaft screw rod, 22-X shaft motor, 23-X shaft mounting plate, 24-outer shell, 25-end plate, 26-positioning plate, 27-Y shaft slide block, 28-Y shaft screw rod, 29-Y axis motor, 30-Y axis mounting plate, 31-Z axis slider, 32-Z axis lead screw, 33-Z axis motor, 34-first Z axis mounting plate, 35-second Z axis mounting plate, 36-light source module, 37-camera module, 38-light source light, 39-camera sight line, 40-optical system, 41-objective lens, 42-right eyeball, 43-right eyeball optic disc, 44-right camera visual area, 45-center of camera visual area, 46-left camera visual area, 47-left eyeball, 48-left eyeball optic disc and 49-center of light source light.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The structure of the photographing device for optimizing fundus imaging quality provided by the embodiment is as shown in fig. 1, 3 and 4, and comprises a fundus camera 1, a support, a three-axis motion mechanism, a rotation mechanism and a face support.
The fundus camera 1 includes an outer case 24, a camera module 37, a light source module 36, an optical system 40, and an objective lens 41, the outer case 24 is a cylindrical structure, the outer case 24 includes two end panels 25, the objective lens 41 is installed on one end panel 25, and an optical axis of the camera module 37 is horizontally disposed.
The support is L-shaped, the support comprises a second supporting transverse plate 14 and a third supporting vertical plate 13, and the bottom of the third supporting vertical plate 13 is connected with one side of the second supporting transverse plate 14.
The triaxial movement mechanism comprises an X-axis sliding table module, a Y-axis sliding table module and a Z-axis sliding table module, and the triaxial movement mechanism is positioned right above the second supporting transverse plate 14.
The X-axis sliding table module comprises an X-axis sliding block 20, an X-axis lead screw 21, an X-axis motor 22 and an X-axis sliding table, the X-axis sliding table comprises an X-axis sliding rail 15 and two X-axis mounting plates 23, the X-axis sliding rail 15 is fixed on the inner surface of the third supporting vertical plate 13, and the two X-axis mounting plates 23 are fixed at two ends of the X-axis sliding rail 15 respectively. The X-axis screw rod 21 is horizontally arranged, two end parts of the X-axis screw rod 21 are respectively installed on the two X-axis installation plates 23, and the X-axis screw rod 21 is respectively parallel to the second supporting transverse plate 14 and the third supporting vertical plate 13. The X-axis sliding block 20 is installed on the X-axis screw rod 21, the X-axis sliding block 20 is connected with the X-axis sliding rail 15 in a matched mode, the X-axis motor 22 is fixed on one X-axis installation plate 23, and the output end of the X-axis motor 22 is connected with one end of the X-axis screw rod 21.
Y axle slip table module includes Y axle slider 27, Y axle lead screw 28, Y axle motor 29 and Y axle slip table, and Y axle slip table includes Y axle slide rail 16 and two Y axle mounting plates 30, and on X axle slider 27 was fixed in the middle part of Y axle slide rail 16, two Y axle mounting plates 30 were fixed in respectively on the both ends of Y axle slide rail 16, the vertical setting of Y axle lead screw 28, and the both ends of Y axle lead screw 28 are installed respectively on two Y axle mounting plates 30. The Y-axis sliding block 27 is installed on a Y-axis screw rod 28, the Y-axis sliding block 27 is connected with the Y-axis sliding rail 16 in a matched mode, the Y-axis motor 29 is fixed on one Y-axis installation plate 30, and the output end of the Y-axis motor 29 is connected with one end of the Y-axis screw rod 28.
Z axle slip table module includes Z axle slider 31, Z axle screw 32, Z axle motor 33 and Z axle slip table, Z axle slip table includes Z axle slide rail 17, first Z axle mounting panel 34 and second Z axle mounting panel 35 are fixed in respectively on Z axle slide rail 17's the both ends, first Z axle mounting panel 34 is less than the height of second Z axle mounting panel 35 in the Y axle direction at the height of Y axle direction, second Z axle mounting 35 board is fixed in on Y axle slider 27. The Z-axis wire rod 32 is horizontally disposed, and both ends of the Z-axis wire rod 32 are respectively mounted on the first Z-axis mounting plate 34 and the second Z-axis mounting plate 35. The Z-axis motor 33 is fixed on the first Z-axis mounting plate 34, the output end of the Z-axis motor 33 is connected with one end of the Z-axis screw 32, and the Z-axis sliding block 31 is mounted on the Z-axis screw 32.
The rotating mechanism comprises a rotating motor 5, a coupler 3, a switching piece and a connecting support, and the rotating motor 5 adopts a stepping motor. The connecting support comprises a connecting seat and a second supporting vertical plate 12, the connecting seat is L-shaped and comprises a first supporting transverse plate 4 and a first supporting vertical plate 2, and the bottom of the first supporting vertical plate 2 is connected with one side of the first supporting transverse plate 4. The second supports the riser 12 and is located the inboard of first backup pad 2, and second support riser 12 bottom is connected with first support diaphragm 4, and first support riser 2 and second support riser 12 are just relative. The rotating electrical machine 5 is fixed on the second supporting vertical plate 12, and the output shaft of the rotating electrical machine 5 penetrates through the second supporting vertical plate 12. The shaft coupling 3 is located between first support riser 2 and second support riser 12, and the output shaft of rotating electrical machines 5 is on a parallel with Z axle screw 32, and the output shaft of rotating electrical machines 5 is connected with shaft coupling 3.
The connecting piece comprises a transfer shaft 6, a positioning plate 26 and a bearing 7, wherein the positioning plate 26 is disc-shaped, and the positioning plate 26 is fixed on the outer surface of the other end plate 25. The adapter shaft 6 is a second step shaft, the large end face of the adapter shaft 6 is connected with the center of the positioning plate 26, the adapter shaft 6 penetrates through the first supporting vertical plate 2, the adapter shaft 6 is connected with the first supporting vertical plate 2 through the bearing 7, the small end portion of the adapter shaft 6 is connected with the coupler 3, and the axes of the positioning plate 26 and the adapter shaft 6 are overlapped with the optical axis of the camera module 37.
As shown in fig. 2, the limit mechanism includes a groove-shaped photoelectric switch 18 and a limit stopper 19, the groove-shaped photoelectric switch 18 is electrically connected to the rotating electrical machine 5, the groove-shaped photoelectric switch 18 is fixed to the outer surface of the first supporting riser 2, and the limit stopper 19 is fixed to an end surface plate 25 directly opposite to the first riser 2. When the limit stop 19 rotates to trigger the groove-shaped photoelectric switch 18, the groove-shaped photoelectric switch 18 is disconnected, and the rotating motor 5 returns to the initial position.
The face support bracket 8 is mounted on the second horizontal support plate 14, and the face support bracket 8 faces the objective lens 41. The face support bracket 8 comprises a forehead support 11 and a chin support 9, and the face support bracket is used for placing the head of the tested person during the ophthalmologic examination.
The use method of the shooting device for optimizing the fundus imaging quality comprises the following steps:
1. when the examinee 10 performs the fundus examination, the examinee 10 places the chin on the chin rest 9 and the forehead rests on the forehead rest 11;
2. the method comprises the steps that the position of a fundus camera 1 is adjusted according to the position of the pupil of a measured person, when the fundus camera needs to be adjusted to the left, an X-axis motor 22 is started, the X-axis motor 22 starts to rotate in the forward direction, the X-axis motor 22 drives an X-axis lead screw 21 to rotate in the forward direction, the X-axis lead screw 21 drives an X-axis slider 20 to slide, the X-axis slider 20 slides to drive a Y-axis sliding table module to move to the left, the Y-axis sliding table module drives a Z-axis sliding module to move to the left, the Z-axis sliding module drives a rotating mechanism to move to the left, the rotating mechanism drives the fundus camera 1 to move to the left, when the fundus camera 1 is adjusted to a proper position, the X-axis motor 22 is turned off;
when the fundus camera needs to be adjusted upwards, the Y-axis motor 29 is started, the Y-axis motor 29 starts to rotate forwards, the Y-axis motor 29 drives the Y-axis screw rod 28 to rotate forwards, the Y-axis screw rod 28 drives the Y-axis sliding block 27 to move upwards, the Y-axis sliding block 27 slides to drive the Z-axis sliding module to move upwards, the Z-axis sliding module drives the fundus camera 1 to move upwards, when the fundus camera 1 is adjusted to a proper position, the Y-axis motor 29 is closed, and if the fundus camera 1 needs to be adjusted upwards, the Y-axis motor 29 starts to rotate reversely;
when the fundus camera needs to be adjusted forwards, the Z-axis motor 33 is started, the Z-axis motor 33 starts to rotate forwards, the Z-axis motor 33 drives the Z-axis screw rod 32 to rotate forwards, the Z-axis screw rod 32 drives the Z-axis sliding block 31 to move forwards, the Z-axis sliding block 31 slides to drive the fundus camera 1 to move forwards, when the fundus camera 1 is adjusted to a proper position, the Z-axis motor 33 is closed, and if the fundus camera 1 needs to be adjusted backwards, the Z-axis motor 33 starts to rotate reversely;
3. adjusting the fundus camera to a proper position by the adjusting method in the step 2, starting the rotating motor, driving the switching shaft to rotate by the rotating motor, driving the fundus camera to rotate by the switching shaft, driving the rotating stop block to rotate by the fundus camera, and when the rotating stop block triggers the groove-shaped photoelectric switch, powering off the groove-shaped photoelectric switch, so that the rotating motor stops rotating and is positioned at a set position (namely an initial position).
Turning on the eye fundus camera 1, the eye fundus camera 1 takes a picture of the right eye of the subject, as shown in fig. 5, after the light source light 38 enters the right eyeball 42, the light source light center 49 and the camera sight 39 have different routes after entering the right eyeball 42, as can be seen from fig. 5, after the light source light 38 enters the right eyeball, the light source light center 49 is on the left side of the right eyeball 42 (in a normal state, the eyeball optic disc is left-eye-right-eye, and the direction of the eye viewing object is taken as a reference), and after the camera sight 39 enters the right eyeball 42, the camera optic area center 45 is just right at the center of the right eyeball 42. The region where the right eyeball optic disc 43 is located (i.e. the right side of the right eyeball 42) has strong light scattering, the left side of the right eyeball 42 needs to be much weaker, the light source light center 49 is just distributed on the left side of the right eyeball 42, the light source light is strongest at the light source light center 49 and gradually weakens towards the two sides, so that the defect that the picture is over-exploded due to too strong reflection of the right eyeball optic disc 43 is just made up, and the region where the light scattering is not so strong (the left side of the right eyeball 42) is brighter due to the irradiation of the light source light center on the left side of the right eyeball 42, and the defect that the region is not exposed enough is just made up;
4. when the left eye of the testee needs to be photographed, the rotating motor is started to drive the eye fundus camera to rotate forward, when the eye fundus camera rotates forward by 180 degrees, the rotating motor stops rotating, and the left eye of the testee starts to be photographed, as shown in fig. 6, after the light source light 38 enters the left eyeball 47, the light source light center 49 and the camera sight 39 have different routes after entering the left eyeball 47, and as can be seen from fig. 6, the light source light center 49 after the light source light 38 enters the right eyeball is on the right side of the left eyeball 47 (in a normal state, the eyeball optic disc is on the left side of the left eye, the right eye is on the right side of the right eye, the direction of the object viewed by the eyes is taken as a reference), and after the camera sight 39 enters the left eyeball 47, the camera visual area center 45 is just. The area where the left eyeball optic disc 48 is located (namely the left side of the left eyeball 51) has strong light scattering, the right side of the left eyeball 47 is much weaker, the light source light center 53 is just distributed on the right side of the left eyeball 47, the light source light is strongest at the light source light center 49 and gradually weakens towards the two sides, so that the defect that the picture is over-exploded due to too strong reflection of the left eyeball optic disc 48 is just made up, and the area with less strong scattering (the right side of the left eyeball 47) is brighter due to the irradiation of the light source light center on the right side of the left eyeball 47, and the defect that the exposure is insufficient in the area is just made up.
Claims (10)
1. The utility model provides an optimize photographic arrangement of fundus imaging quality, includes ophthalmic apparatus, and ophthalmic apparatus includes shell body and camera module, its characterized in that: the ophthalmic device comprises a camera module, a support, a three-axis movement mechanism and a rotating mechanism, wherein the three-axis movement mechanism is arranged on the support, the rotating mechanism is arranged on the three-axis movement mechanism, an outer shell is arranged on the rotating mechanism, and the ophthalmic device can rotate around an optical axis of the camera module.
2. The photographing apparatus for optimizing fundus imaging quality according to claim 1, wherein: the rotating mechanism comprises a rotating motor, a switching piece and a connecting support, the rotating motor is installed on the three-axis movement mechanism through the connecting support, the switching piece is movably installed on the connecting support, and the switching piece is connected with the outer shell and an output shaft of the rotating motor respectively.
3. The photographing apparatus for optimizing fundus imaging quality according to claim 1 or 2, wherein: the reset mechanism is electrically connected with the rotating motor and can reset the rotating motor to an initial position.
4. The photographing apparatus for optimizing fundus imaging quality according to claim 3, wherein: the reset mechanism comprises a groove-shaped photoelectric switch and a limit stop, the groove-shaped photoelectric switch is fixed on the connecting support, the groove-shaped photoelectric switch is electrically connected with the rotating motor, the limit stop is fixed on the outer shell, when the limit stop rotates to trigger the groove-shaped photoelectric switch, the groove-shaped photoelectric switch is disconnected, and the rotating motor stops rotating and returns to the initial position.
5. The photographing apparatus for optimizing fundus imaging quality according to claim 4, wherein: rotary mechanism still include the shaft coupling, the adaptor includes switching axle, locating plate and bearing, the one end of switching axle is connected with a fixed surface of locating plate, the linking bridge is including the connecting seat that is the L type, the connecting seat includes first support diaphragm and first support riser, the bottom of first support riser is connected with one side of first support diaphragm, the switching axle runs through first support riser, and the switching axle passes through the bearing with first support riser and is connected, the output shaft of motor passes through the shaft coupling and is connected with the other end of switching axle.
6. The photographing apparatus for optimizing fundus imaging quality according to claim 5, wherein: the connecting support further comprises a second supporting vertical plate, the second supporting vertical plate is located on the inner side of the first supporting plate, the bottom of the second supporting vertical plate is connected with the first supporting transverse plate, the second supporting vertical plate is opposite to the first supporting vertical plate, the rotating motor is fixed on the second supporting vertical plate, an output shaft of the rotating motor penetrates through the second supporting vertical plate, and the coupler is located between the first supporting vertical plate and the second supporting vertical plate.
7. The photographing apparatus for optimizing fundus imaging quality according to claim 5, wherein: the groove-shaped photoelectric switch is fixed on the outer surface of the first supporting vertical plate.
8. The photographing apparatus for optimizing fundus imaging quality according to claim 5, wherein: the shell body be tubular structure, the shell body includes both ends terminal plate, ophthalmic device still includes objective, objective installs on one of them terminal plate, the locating plate is discoid, on the locating plate was fixed in the surface of another terminal plate, the switching axle was the second step axle, the big terminal surface and the locating plate central authorities of switching axle are connected, little tip and the coupling joint of switching axle, the axis of locating plate and switching axle all with the coincidence of camera module's optical axis.
9. The photographing apparatus for optimizing fundus imaging quality according to claim 5, wherein: the three-axis movement mechanism comprises an X-axis sliding table module, a Y-axis sliding table module and a Z-axis sliding table module;
the X-axis sliding table module comprises an X-axis sliding block, an X-axis lead screw, an X-axis motor and an X-axis sliding table, the X-axis sliding table comprises an X-axis sliding rail and two X-axis mounting plates, the X-axis sliding rail is fixed on the support, the two X-axis mounting plates are respectively fixed at two ends of the X-axis sliding rail, two end parts of the X-axis lead screw are respectively mounted on the two X-axis mounting plates, the X-axis sliding block is mounted on the X-axis lead screw, the X-axis sliding block is connected with the X-axis sliding rail in a matched mode, the X-axis motor is fixed on one X-axis mounting plate, and the output;
the Y-axis sliding table module comprises a Y-axis sliding block, a Y-axis lead screw, a Y-axis motor and a Y-axis sliding table, the Y-axis sliding table comprises a Y-axis sliding rail and two Y-axis mounting plates, the middle part of the Y-axis sliding rail is fixed on the X-axis sliding block, the two Y-axis mounting plates are respectively fixed on the two ends of the Y-axis sliding rail, the two ends of the Y-axis lead screw are respectively mounted on the two Y-axis mounting plates, the Y-axis sliding block is mounted on the Y-axis lead screw, the Y-axis sliding block is connected with the Y-axis sliding rail in a matched mode, the Y-axis motor is fixed on one of the Y;
the Z-axis sliding table module comprises a Z-axis sliding block, a Z-axis lead screw, a Z-axis motor and a Z-axis sliding table, the Z-axis sliding table comprises a Z-axis sliding rail, a first Z-axis mounting plate and a second Z-axis mounting plate, the first Z-axis mounting plate and the second Z-axis mounting plate are respectively fixed on two ends of the Z-axis sliding rail, the height of the first Z-axis mounting plate in the Y-axis direction is smaller than that of the second Z-axis mounting plate in the Y-axis direction, the second Z-axis mounting plate is fixed on the Y-axis sliding block, two end parts of the Z-axis lead screw are respectively arranged on the first Z-axis mounting plate and the second Z-axis mounting plate, the Z-axis lead screw is parallel to the optical axis of the camera module, and the output end of the Z-axis motor is connected with one end of the Z-axis screw rod, the Z-axis sliding block is installed on the Z-axis screw rod, the bottom of the first supporting transverse plate is fixed on the Z-axis sliding block, and the first supporting transverse plate is located above the first Z-axis installing plate.
10. The photographing apparatus for optimizing fundus imaging quality according to claim 9, wherein: the support be the L type, the support includes second support diaphragm and third support riser, third support riser bottom is connected with one side of second support diaphragm, triaxial moving mechanism is located the second and supports the diaphragm directly over, X axle slide rail is fixed in on the internal surface of third support riser, and X axle lead screw is parallel to second support diaphragm and third support riser respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922457666.0U CN211723125U (en) | 2019-12-31 | 2019-12-31 | Shooting device for optimizing fundus imaging quality |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922457666.0U CN211723125U (en) | 2019-12-31 | 2019-12-31 | Shooting device for optimizing fundus imaging quality |
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| Publication Number | Publication Date |
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| CN211723125U true CN211723125U (en) | 2020-10-23 |
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| CN201922457666.0U Active CN211723125U (en) | 2019-12-31 | 2019-12-31 | Shooting device for optimizing fundus imaging quality |
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- 2019-12-31 CN CN201922457666.0U patent/CN211723125U/en active Active
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