CN114431825B - Slit-lamp microscope and filtering adjusting structure thereof - Google Patents
Slit-lamp microscope and filtering adjusting structure thereof Download PDFInfo
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- CN114431825B CN114431825B CN202210377331.1A CN202210377331A CN114431825B CN 114431825 B CN114431825 B CN 114431825B CN 202210377331 A CN202210377331 A CN 202210377331A CN 114431825 B CN114431825 B CN 114431825B
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- transmission rod
- slit
- disc
- light
- mounting seat
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/13—Ophthalmic microscopes
- A61B3/135—Slit-lamp microscopes
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/06—Means for illuminating specimens
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/006—Filter holders
Abstract
The application discloses a light filtering adjusting structure of a slit-lamp microscope, which comprises a mounting seat; the first transmission assembly comprises a first transmission rod, and the output end of the first transmission rod extends out of the mounting seat; the first transmission rod is provided with through holes with openings at two ends along the axial direction; the output end of the first power assembly is in transmission connection with the input end of the first transmission rod; the optical filter adjusting disc is fixedly connected to the output end of the first transmission rod; the second transmission assembly comprises a second transmission rod, the second transmission rod penetrates through the through hole of the first transmission rod, and the output end of the second transmission rod extends out of the output end of the first transmission rod; the output end of the second power assembly is in transmission connection with the input end of the second transmission rod; the slit light length adjusting disc is fixedly connected to the output end of the second transmission rod; the controller is electrically connected with the first power assembly and the second power assembly respectively. The electric power assembly drives the optical filter adjusting disc and the slit light length adjusting disc to rotate, and the electric control can effectively improve the control accuracy.
Description
Technical Field
The application relates to the field of slit lamps, in particular to a slit lamp microscope and a light filtering and adjusting structure thereof.
Background
Slit-lamp microscopes are vital instruments essential for ophthalmic examinations. The slit-lamp microscope consists of an illumination system and a binocular microscope, can not only enable superficial lesions to be observed clearly, but also adjust the focus and the width of a light source to be made into an optical section, so that the lesions of deep tissues can be also displayed clearly.
In the detection process, the light source length and the optical filter of the slit-lamp microscope need to be adjusted according to specific requirements. The slit light length adjusting disc for adjusting the slit light length on the light path and the optical filter adjusting disc for adjusting the light heat, the color and the like on the light path only need to be manually adjusted by workers, the adjusting precision is low, and the detection efficiency is influenced.
Disclosure of Invention
The utility model provides a main objective is to provide a slit lamp microscope and filtering regulation structure thereof, aims at solving among the prior art slit light length adjustment dish and light filter adjustment dish for manual regulation, adjusts the technical problem that the precision is low, detection efficiency is low.
In order to achieve the above object, the present application provides a filter adjusting structure of a slit-lamp microscope, comprising:
a mounting seat;
the first transmission assembly comprises a first transmission rod, and the first transmission rod is arranged on the mounting seat and can rotate relative to the mounting seat; the output end of the first transmission rod extends out of the mounting seat; the first transmission rod is provided with through holes with openings at two ends along the axial direction;
the output end of the first power assembly is in transmission connection with the input end of the first transmission rod so as to drive the first transmission rod to rotate;
the optical filter adjusting disc is fixedly connected to the output end of the first transmission rod;
the second transmission assembly comprises a second transmission rod, the second transmission rod penetrates through the through hole of the first transmission rod, and the first transmission rod and the second transmission rod are in clearance fit; the output end of the second transmission rod extends out of the output end of the first transmission rod;
the output end of the second power assembly is in transmission connection with the input end of the second transmission rod so as to drive the second transmission rod to rotate;
the slit light length adjusting disc is fixedly connected to the output end of the second transmission rod;
and the controller is electrically connected with the first power assembly and the second power assembly respectively.
Further, the filter adjusting structure of the slit-lamp microscope further comprises a first bearing; the mounting seat is provided with a mounting hole for the first transmission rod to pass through;
the outer ring of the first bearing is fixedly connected with the hole wall of the mounting hole; the inner ring of the first bearing is fixedly connected with the first transmission rod.
Further, the light filtering adjusting structure of the slit-lamp microscope further comprises a second bearing;
the outer ring of the second bearing is fixedly connected with the inner wall of the through hole; and the inner ring of the second bearing is fixedly connected with the second transmission rod.
Further, the second bearing comprises two parts which are respectively and correspondingly arranged at two ends of the through hole.
Further, the slit light length adjusting disc comprises a first slit light length adjusting sub-disc and a second slit light length adjusting sub-disc;
the first slit light length adjusting sub disc is fixedly connected with the output end of the second transmission rod;
the second slit light length adjusting sub-disc is attached to the end face, far away from the mounting seat, of one end of the first slit light length adjusting sub-disc;
the first slit light length adjusting sub disc is provided with a plurality of first light passing adjusting holes; a plurality of second light passing adjusting holes are formed in the second slit light length adjusting sub disc; when a second slit light length adjusting sub-disc is attached to the end face, far away from the mounting seat, of the first slit light length adjusting sub-disc, the plurality of first light passing adjusting holes are in adaptive right alignment with the plurality of second light passing adjusting holes; the adaptation is just right the shape of second light modulation hole is the same with first light modulation hole, and second light modulation hole is less than first light modulation hole.
Further, the second slit light length adjusting sub-disc is made of a stainless steel plate by using an etching process.
Furthermore, a side wall extends from the edge of the second slit light length adjusting sub-disc to one side of the mounting seat, and a notch is formed in the side wall;
a first photoelectric sensor is arranged on the mounting seat, corresponds to the side wall and is used for detecting the notch;
wherein the first photosensor is electrically connected to the controller.
Furthermore, a light blocking sheet is arranged on one side, facing the mounting seat, of the light filter adjusting disc;
the mounting seat is provided with a second photoelectric sensor which is arranged corresponding to the light barrier and is used for detecting the light barrier;
wherein the second photosensor is electrically connected to the controller.
Further, the first power assembly comprises a first motor, a first output gear and a first reduction gear;
a first input outer tooth is arranged on the side wall of the input end of the first transmission rod;
the first motor is fixed on the mounting seat, and an output shaft of the first motor is provided with the first output gear; the first output gear meshes with the first reduction gear, which meshes with the first input external teeth.
Further, the second power assembly comprises a second motor, a second output gear and a second reduction gear;
the input end of the second transmission rod protrudes out of the through hole, and the side wall of the second transmission rod is provided with second input outer teeth;
the second motor is fixed on the mounting seat, and an output shaft of the second motor is provided with the second output gear; the second output gear meshes with the second reduction gear, which meshes with the second input external teeth.
The present application further provides a slit-lamp microscope including a filter adjustment structure of a slit-lamp microscope as defined in any one of the above.
The utility model provides a structure is adjusted in slit lamp microscope's filtering, through the rotation of electronic power component drive light filter adjustment disk and slit light length adjustment disk, electric control can effectively improve the accuracy of control to improve detection efficiency. Furthermore, the first transmission rod which drives the optical filter adjusting disc to rotate is sleeved outside the second transmission rod which drives the slit light length adjusting disc to rotate, so that the optical filter adjusting disc and the slit light length adjusting disc are closer and more stable in rotation, meanwhile, the whole size of the optical filter adjusting structure of the slit lamp microscope is effectively reduced, and the placing space is saved. In addition, the electric power assembly drives the optical filter adjusting disc and the slit light length adjusting disc to rotate, so that convenience is provided for remote control, judgment of professional doctors is facilitated, and a timely and efficient treatment scheme is provided for patients.
Drawings
FIG. 1 is a schematic diagram of a filter adjustment structure of a slit-lamp microscope in accordance with an embodiment of the present application;
FIG. 2 is a schematic diagram of the structure between the first power assembly, the second power assembly, the first transmission assembly and the second transmission assembly of the filter adjustment structure of the slit-lamp microscope according to the embodiment of the present application;
FIG. 3 is a schematic view of a second drive link and a second bearing according to an embodiment of the present application;
FIG. 4 is an exploded view of a slit light length adjustment disk according to an embodiment of the present application;
FIG. 5 is an exploded view of a light blocking sheet and a light sheet adjusting plate according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a mounting base according to an embodiment of the present application.
In the figure:
100-a mounting seat; 101-a first photosensor; 102-second photoelectric sensor
200-a first transmission assembly; 201-a first transfer lever; 202-first input outer teeth;
300-a first power assembly; 301-a first motor; 302-a first output gear; 303-a first reduction gear;
400-optical filter adjusting disc; 401-light barrier via hole; 402-screw fixing holes; 403-light barrier; 404-a filter;
500-a second transmission assembly; 501-end cap; 502-a second screw hole; 503-second drive link
600-a second power assembly; 601-a second motor; 602-a second output gear; 603-a second reduction gear; 604-second input outer teeth;
700-slit light length adjusting disc; 701-a first slit light length adjusting sub-disc; 702-a second slit light length adjusting subdisc; 7011-first dimming hole; 7012-through rod via; 7013-a first screw hole; 7014-side wall; 7015-a gap; 7021-second dimming hole; 7022-abdicating holes;
800-a first bearing;
900-second bearing.
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Referring to fig. 1 and 2, an embodiment of the present application provides a filter adjustment structure of a slit-lamp microscope, including:
a mounting base 100;
the first transmission assembly 200 comprises a first transmission rod 201, and the first transmission rod 201 is arranged on the mounting seat 100 and can rotate relative to the mounting seat 100; the output end of the first transmission rod 201 extends out of the mounting seat 100; wherein, the first transmission rod 201 is provided with through holes with two open ends along the axial direction;
the first power assembly 300 is fixedly arranged relative to the mounting seat 100, and an output end of the first power assembly 300 is in transmission connection with an input end of the first transmission rod 201 so as to drive the first transmission rod 201 to rotate;
the optical filter adjusting disc 400 is fixedly connected to the output end of the first transmission rod 201;
the second transmission assembly 500 comprises a second transmission rod 503, the second transmission rod 503 is sleeved in the through hole of the first transmission rod 201, and the first transmission rod 201 is in clearance fit with the second transmission rod 503; the output end of the second transmission rod 503 extends out of the output end of the first transmission rod 201;
the second power assembly 600 is fixedly arranged relative to the mounting seat 100, and an output end of the second power assembly 600 is in transmission connection with an input end of the second transmission rod 503 so as to drive the second transmission rod 503 to rotate;
the slit light length adjusting disc 700 is fixedly connected to the output end of the second transmission rod 503;
and a controller (not shown) electrically connected to the first power assembly 300 and the second power assembly 600, respectively.
As described above, the mounting base 100 is a base body, and different mounting structures are provided inside and outside the base body for mounting and hanging on different components. As in the present application, the mounting seat 100 is a cavity with an opening at one end, and the optical filter adjusting disc 400 and the slit light length adjusting disc 700 are both disposed in the cavity, wherein the optical filter adjusting disc 400 and the slit light length adjusting disc 700 are coaxially disposed, and the slit light length adjusting disc 700 is located outside the optical filter adjusting disc 400, that is, light in a slit light path first passes through the slit light length adjusting disc 700 to perform slit light length adjustment, and then irradiates on a filter of the optical filter adjusting disc 400. It should be noted that the mounting base 100 is provided with a light passing hole so that the slit light continues to pass through the filter 404.
The first transmission assembly 200 is a transmission structure capable of driving the optical filter adjustment disc 400 to rotate, and mainly includes a first transmission rod 201 penetrating through the installation base 100 and capable of rotating relative to the installation base 100, so that after the output end of the first transmission rod is fixed to the optical filter adjustment disc 400, the first transmission rod can drive the optical filter adjustment disc 400 to rotate relative to the installation base 100. It should be noted that the first transmission rod 201 is a tubular structure with two open ends, that is, the first transmission rod 201 is provided with a through hole with two open ends along the axial direction, so as to facilitate the insertion of the second transmission rod 503.
The first power assembly 300 generally includes a first motor 301 and a first speed reducing mechanism, wherein the first motor 301 is controlled by a controller, and the rotation angle of the first transmission rod 201 is precisely controlled by the rotation number of the first motor 301. The first motor 301 drives the first speed reducing mechanism, and the first speed reducing mechanism drives the first transmission rod 201 to rotate. The first motor 301 may drive the speed reducing mechanism to operate through a gear transmission or a chain transmission, and similarly, the first speed reducing mechanism may drive the first transmission rod 201 to rotate through a gear transmission or a chain transmission. The first motor 301 is a servo motor.
The filter adjustment disc 400 has a plurality of filter mounting holes, and different filters 404 are mounted in different filter mounting holes. In one embodiment, the filters 404 include color filters, thermal barriers, light barriers, red-free and cobalt-blue barriers, etc., and different filters 404 are selected for different detection requirements. Further, the filter adjustment disk 400 is provided with a light passing hole to which the filter 404 is not mounted.
The second transmission assembly 500 is a transmission structure capable of driving the slit light length adjustment disc 700 to rotate, and mainly includes a second transmission rod 503, which penetrates through the first transmission rod 201 and is capable of rotating relative to the first transmission rod 201, so that after the output end of the second transmission assembly is fixed to the slit light length adjustment disc 700, the second transmission assembly can drive the slit light length adjustment disc 700 to rotate relative to the mounting base 100. It should be noted that the second driving rod 503 generally has a length greater than that of the first driving rod 201, and an output end thereof protrudes out of an output end of the first driving rod 201 so as to be connected to the slit light length adjusting disk 700. The end of the second transmission rod 503 away from the output end thereof generally protrudes from the first transmission rod 201, so that the second transmission assembly 500 can control the rotation thereof conveniently.
The second power assembly 600 is substantially the same as the first power assembly 300, and generally includes a second motor 601 and a second speed reducing mechanism, wherein the second motor 601 is controlled by a controller, and the rotation angle of the second transmission rod 503 is precisely controlled by the rotation number of the second motor 601. The second motor 601 drives the second speed reducing mechanism, and the second speed reducing mechanism drives the first transmission rod 201 to rotate. The second motor 601 may drive the speed reducing mechanism to operate through a gear transmission or a chain transmission, and similarly, the second speed reducing mechanism may drive the first transmission rod 201 to rotate through a gear transmission or a chain transmission. The second motor 601 is a servo motor.
The slit light length adjusting disk 700 is provided with light passing adjusting holes with different apertures, and slit lights with the same width but different lengths can be obtained by adjusting the different apertures to the light path of the slit light. Further, the slit light length adjusting plate 700 is further provided with a crescent-shaped electrodeless light passing adjusting hole, the width of which can be gradually enlarged, and when the fixed aperture can not meet the requirement, the slit light length adjusting plate is adjusted through the electrodeless light passing hole to obtain slit light capable of meeting the length requirement.
The controller is an electronic device for controlling the first power assembly 300 and the second power assembly 600, and generally embeds a corresponding control program for controlling the first power assembly 300 and the second power assembly 600 to drive the corresponding optical filter adjusting disc 400 and/or the slit light length adjusting disc 700 to rotate forward or backward, and to rotate the angle, etc. Furthermore, the controller is provided with control buttons and the like so as to facilitate the operation of workers.
In an embodiment, when a worker needs to adjust the lengths of the optical filter 404 and the slit light when using the above-mentioned filter adjustment structure of the slit-lamp microscope, the controller controls the first power assembly 300 to drive the first transmission rod 201 to rotate, and controls the second power assembly 600 to drive the second transmission rod 503 to rotate, so that the optical filter adjustment disc 400 and the slit-light-length adjustment disc 700 respectively rotate by corresponding angles, thereby obtaining the slit light required by the worker. Because the first transmission rod 201 which drives the optical filter adjusting disc 400 to rotate is sleeved outside the second transmission rod 503 which drives the slit light length adjusting disc 700 to rotate, the optical filter adjusting disc 400 and the slit light length adjusting disc 700 are more compact and rotate more stably, meanwhile, the whole volume of the filtering adjusting structure of the slit lamp microscope is effectively reduced, and the placing space is saved. In addition, the electric power assembly drives the optical filter adjusting disc and the slit light length adjusting disc to rotate, so that convenience is provided for remote control, judgment of professional doctors is facilitated, and a timely and efficient treatment scheme is provided for patients. Of course, if the remote control needs to be completed, the slit-lamp microscope needs to be wired or wirelessly connected to a corresponding network, and details are not described herein.
Referring to fig. 2, in one embodiment, the filter adjustment structure of the slit-lamp microscope further includes a first bearing 800; the mounting seat 100 is provided with a mounting hole (not shown) for the first transmission rod 201 to pass through; the outer ring of the first bearing 800 is fixedly connected with the hole wall of the mounting hole; the inner ring of the first bearing 800 is fixedly connected with the first transmission rod 201.
As described above, the length of the first bearing 800 along the axial direction thereof is approximately equal to one third of the length of the first transmission rod 201, or longer, so that the rotation of the first transmission rod 201 can be more stabilized. Further, the first bearing 800 includes a plurality of bearings uniformly distributed along the length of the first driving rod 201 to improve the rotational stability of the first driving rod 201.
Referring to fig. 3, in one embodiment, the filter adjustment structure of the slit-lamp microscope further includes a second bearing 900; the outer ring of the second bearing 900 is fixedly connected with the inner wall of the through hole; the inner ring of the second bearing 900 is fixedly connected with the second transmission rod 503.
As described above, the second bearing 900 is installed in the first driving lever 201, so that the influence of the mutual rotation between the second driving lever 503 and the first driving lever 201 can be reduced, and the rotation of the second driving lever 503 can be more stabilized.
In one embodiment, the second bearing 900 includes two bearings respectively installed at two ends of the through hole. The two second bearings 900 are respectively and correspondingly installed at the two ends of the through hole, so that the installation and maintenance are more convenient. Two ends of the first transmission rod 201 are provided with flaring grooves corresponding to the through holes, and the second bearing 900 is arranged in the flaring grooves, so that a bearing with a larger outer ring can be used, and the installation is more convenient.
Referring to fig. 1, 3 and 4, in one embodiment, the slit light length adjustment disk 700 includes a first slit light length adjustment sub-disk 701 and a second slit light length adjustment sub-disk 702; the first slit light length adjusting sub-disc 701 is fixedly connected with the output end of the second transmission rod 503; the second slit optical length adjusting sub-disc 702 is attached to an end face, away from the mounting base 100, of the first slit optical length adjusting sub-disc 701; the first slit light length adjusting subpanel 701 is provided with a plurality of first excessive light adjusting holes 7011; a plurality of second excessive light adjusting holes 7021 are formed in the second slit light length adjusting subpanel 702; when a second slit optical length adjusting sub-disc 702 is attached to an end face, away from the mounting base 100, of the first slit optical length adjusting sub-disc 701, the plurality of first light passing adjusting holes 7011 are in adaptive facing relation with the plurality of second light passing adjusting holes 7021; the shape of the second excessive light adjusting hole 7021 and the shape of the first excessive light adjusting hole 7011 which are just aligned in the fitting are the same, and the second excessive light adjusting hole 7021 is smaller than the first excessive light adjusting hole 7011.
As described above, the middle of the first slit light length adjusting sub-disc 701 is provided with the one through-rod through-hole 7012, and the peripheral side of the through-rod through-hole 7012 is provided with the plurality of first screw holes 7013; therefore, the output end of the second transmission rod 503 is provided with an end cap 501, the end cap 501 cannot pass through the rod passing through hole 7012, the end cap 501 is provided with a second screw hole 502 corresponding to the first screw hole 7013, one end of the first transmission rod 201, which is opposite to the output end, is inserted into the rod passing through hole 7012 and then into the through hole of the first transmission rod 201, the end cap 501 covers the rod passing through hole 7012, and then the end cap 501 is fixed to the first slit light length adjusting sub-disc 701 through the first screw hole 7013 and the second screw hole 502 by using screws.
As described above, the second slit optical length adjusting subpanel 702 is attached to the first slit optical length adjusting subpanel 701 by glue or the like, and the hole wall of the second excessive light adjusting hole 7021 provided thereon is smoother and slightly smaller than the corresponding first excessive light adjusting hole 7011. That is, the length of the slit light passing through the slit light length adjustment disk 700 is adjusted by the second slit light length adjustment sub-disk 702, and the first slit light length adjustment sub-disk 701 is only required to drive and carry the second slit light length adjustment sub-disk 702. Since the second slit light length adjusting sub-disc 702 is attached to the first slit light length adjusting sub-disc 701, it can be made into a sheet shape, so that the second slit light length adjusting sub-disc 702 with high precision and smooth hole wall of the light passing adjusting hole can be conveniently made. In one embodiment, the second slit optical length adjusting subdisc 702 is formed of a stainless steel plate using an etching process. The second slit optical length adjusting sub-disc 702 is provided with a yielding hole 7022 of the yielding end cap 501.
Referring to fig. 4 and 6, in an embodiment, a side wall 7014 extends from an edge of the second slit light length adjusting sub-disc 702 to a side of the mounting seat 100, and a notch 7015 is formed in the side wall 7014; a first photoelectric sensor 101 is mounted on the mounting seat 100, and the first photoelectric sensor 101 is arranged corresponding to the side wall 7014 and is used for detecting the gap 7015; wherein the first photosensor 101 is electrically connected to the controller.
As described above, the side wall 7014 is a cylindrical cavity, and a notch 7015 is formed in the side wall 7014 of the cylindrical cavity; the first photoelectric sensor 101 includes an emitting end and a receiving end, the emitting end and the receiving end are respectively disposed at two sides of the side wall 7014, when the notch 7015 of the side wall 7014 rotates to the position of the first photoelectric sensor 101, a preset signal is generated, and the controller can analyze the preset signal to obtain the rotation angle of the slit optical length adjusting disk 700, so that the output power of the second power assembly 600 can be accurately controlled to control the rotation angle of the slit optical length adjusting disk 700.
Referring to fig. 5 and 6, in one embodiment, the filter adjusting disk 400 is provided with a light blocking sheet 403 on a side facing the mounting seat 100; a second photoelectric sensor 102 is mounted on the mounting base 100, and the second photoelectric sensor 102 is arranged corresponding to the light blocking sheet 403 and is used for detecting the light blocking sheet 403; wherein the second photosensor 102 is electrically connected to the controller.
As described above, the second photosensor 102 also includes an emitting end and a receiving end, both of which are disposed at an end of the filter adjusting plate 400 away from the slit light length adjusting plate 700 and fixed on the mounting base 100. The light blocking sheet 403 extends from one side of the optical filter adjusting disc 400 far away from the slit light length adjusting disc 700, when the optical filter adjusting disc 400 rotates to enable the light blocking sheet 403 to pass between the emitting end and the receiving end of the second photoelectric sensor 102, the second photoelectric sensor 102 is triggered to generate a photoelectric signal, the controller can analyze the photoelectric signal to obtain the rotation angle and the like of the optical filter adjusting disc 400, and therefore the first power assembly 300 can be accurately controlled to output power so as to control the rotation angle of the optical filter adjusting disc 400.
Further, the moving path of the light blocking plate 403 coincides with the path through which the center of each filter mounting hole on the filter adjustment disk 400 passes. This can improve control of the rotation angle of the filter adjustment dial 400.
Further, a screw fixing hole 402 and a light blocking sheet through hole 401 are formed in the filter adjusting disc 400, the tail end of the light blocking sheet 403 is located on one side, close to the slit light length adjusting disc 700, of the filter adjusting disc 400 and is fixed at the screw fixing hole 402 through a fixing screw, and the light blocking sheet 403 then bends to penetrate through the light blocking sheet through hole 401 and extends towards one side of the mounting base 100.
Referring to fig. 2, in one embodiment, the first power assembly 300 includes a first motor 301, a first output gear 302, and a first reduction gear 303; a first input external tooth 202 is arranged on the side wall 7014 of the input end of the first transmission rod 201; the first motor 301 is fixed on the mounting base 100, and the output shaft of the first motor is provided with the first output gear 302; the first output gear 302 meshes with the first reduction gear 303, and the first reduction gear 303 meshes with the first input external teeth 202.
The second power assembly 600 includes a second motor 601, a second output gear 602, and a second reduction gear 603; the input end of the second transmission rod 503 protrudes from the through hole, and the side wall 7014 of the second transmission rod is provided with a second input external tooth 604; the second motor 601 is fixed on the mounting base 100, and the output shaft thereof is provided with the second output gear 602; the second output gear 602 meshes with the second reduction gear 603, and the second reduction gear 603 meshes with the second input external teeth 604.
The first motor 301 and the second motor 601 are both dedicated motors. The mounting base 100 is provided with a first rotating column and a second rotating column, and a first reduction gear 303 and a second reduction gear 603 are respectively mounted on the first rotating column and the second rotating column; the first reduction gear 303 meshes with the first external input teeth 202 on the side wall 7014 of the input end of the first transmission rod 201, and the second reduction gear 603 meshes with the second external input teeth 604 on the side wall 7014 of the input end of the second transmission rod 503. The structure is simple, each power assembly is only provided with one reduction gear, the transmission loss value in the transmission process can be better controlled, and the control precision is improved. Further, as shown in the figure, the first motor 301 and the second motor 601 are arranged substantially symmetrically, and the structure is compact and beautiful. Further, the second external input teeth 604 are provided on a gear fitted outside the input end of the second transmission rod 503, and have a circumferential radius similar to that of the first external input teeth 202. The first input external teeth 202 and the first transmission rod 201 are integrally formed, so that the installation process of the gear is reduced, and the installation efficiency is improved.
The present application further provides a slit-lamp microscope including a filter adjustment structure of a slit-lamp microscope as described in any of the above embodiments.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (7)
1. A slit-lamp microscope filter adjustment structure, comprising:
a mounting seat;
the first transmission assembly comprises a first transmission rod, and the first transmission rod is arranged on the mounting seat and can rotate relative to the mounting seat; the output end of the first transmission rod extends out of the mounting seat; the first transmission rod is provided with through holes with openings at two ends along the axial direction;
the output end of the first power assembly is in transmission connection with the input end of the first transmission rod so as to drive the first transmission rod to rotate;
the optical filter adjusting disc is fixedly connected to the output end of the first transmission rod;
the second transmission assembly comprises a second transmission rod, the second transmission rod penetrates through the through hole of the first transmission rod, and the first transmission rod and the second transmission rod are in clearance fit; the output end of the second transmission rod extends out of the output end of the first transmission rod;
the output end of the second power assembly is in transmission connection with the input end of the second transmission rod so as to drive the second transmission rod to rotate;
the slit light length adjusting disc is fixedly connected to the output end of the second transmission rod;
the controller is electrically connected with the first power assembly and the second power assembly respectively;
the bearing also comprises a first bearing; the mounting seat is provided with a mounting hole for the first transmission rod to pass through;
the outer ring of the first bearing is fixedly connected with the hole wall of the mounting hole; the inner ring of the first bearing is fixedly connected with the first transmission rod;
the bearing also comprises a second bearing;
the outer ring of the second bearing is fixedly connected with the inner wall of the through hole; the inner ring of the second bearing is fixedly connected with the second transmission rod;
the slit light length adjusting disc comprises a first slit light length adjusting sub-disc and a second slit light length adjusting sub-disc;
the first slit light length adjusting sub disc is fixedly connected with the output end of the second transmission rod;
the second slit light length adjusting sub-disc is attached to the end face, far away from the mounting seat, of one end of the first slit light length adjusting sub-disc;
the first slit light length adjusting sub disc is provided with a plurality of first light passing adjusting holes; a plurality of second light passing adjusting holes are formed in the second slit light length adjusting sub disc; when a second slit light length adjusting sub-disc is attached to the end face, far away from the mounting seat, of the first slit light length adjusting sub-disc, the plurality of first light passing adjusting holes are in adaptive right alignment with the plurality of second light passing adjusting holes; the adaptation is just right the shape of second light modulation hole is the same with first light modulation hole, and second light modulation hole is less than first light modulation hole.
2. The slit-lamp microscope filter adjustment structure according to claim 1, wherein the second bearing includes two second bearing portions respectively mounted at both end portions of the through hole.
3. The slit-lamp microscope filter adjustment structure of claim 1, wherein the second slit-light-length adjustment sub-disc is made of a stainless steel plate using an etching process.
4. The structure of claim 1, wherein the edge of the second slit-lamp microscope sub-plate extends to a side of the mounting seat to form a sidewall, and the sidewall is provided with a notch;
a first photoelectric sensor is arranged on the mounting seat, corresponds to the side wall and is used for detecting the notch;
wherein the first photosensor is electrically connected to the controller.
5. The structure of claim 1, wherein a light blocking sheet is disposed on a side of the filter adjusting disk facing the mounting seat;
the mounting seat is provided with a second photoelectric sensor which is arranged corresponding to the light barrier and is used for detecting the light barrier;
wherein the second photosensor is electrically connected to the controller.
6. The slit-lamp microscope filter adjustment structure according to any one of claims 1 to 5, wherein the first power assembly includes a first motor, a first output gear, and a first reduction gear;
a first input outer tooth is arranged on the side wall of the input end of the first transmission rod;
the first motor is fixed on the mounting seat, and an output shaft of the first motor is provided with the first output gear; the first output gear meshes with the first reduction gear, which meshes with the first input external teeth;
the second power assembly comprises a second motor, a second output gear and a second reduction gear;
the input end of the second transmission rod protrudes out of the through hole, and the side wall of the second transmission rod is provided with second input outer teeth;
the second motor is fixed on the mounting seat, and an output shaft of the second motor is provided with the second output gear; the second output gear meshes with the second reduction gear, which meshes with the second input external teeth.
7. A slit-lamp microscope characterized by comprising a filter adjusting structure of a slit-lamp microscope as claimed in any of claims 1 to 6.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1400780A1 (en) * | 2002-09-17 | 2004-03-24 | Riken | Microscope system |
| EP2650724A1 (en) * | 2010-12-06 | 2013-10-16 | Olympus Corporation | Light adjusting device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10036965B4 (en) * | 1999-07-30 | 2014-09-04 | Nidek Co., Ltd. | Slit lamp bio-microscope |
| JP4844862B2 (en) * | 2001-09-14 | 2011-12-28 | 株式会社ニコン | Lattice illumination microscope |
| JP4895050B2 (en) * | 2005-06-30 | 2012-03-14 | 国立大学法人 奈良先端科学技術大学院大学 | microscope |
| US9588266B2 (en) * | 2011-05-17 | 2017-03-07 | Canon Denshi Kabushiki Kaisha | Optical filter and optical apparatus |
| JP6904776B2 (en) * | 2017-05-02 | 2021-07-21 | 株式会社トプコン | Slit lamp microscope |
| CN211409015U (en) * | 2019-09-30 | 2020-09-04 | 万灵帮桥医疗器械(广州)有限责任公司 | Vision screening instrument capable of automatically adjusting brightness of lamp panel |
| CN213405976U (en) * | 2020-08-24 | 2021-06-11 | 万灵帮桥医疗器械(广州)有限责任公司 | Electric adjusting slit lamp light source structure |
| CN111938570A (en) * | 2020-09-04 | 2020-11-17 | 万灵帮桥医疗器械(广州)有限责任公司 | Slit-lamp microscope that electric drive was focused |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1400780A1 (en) * | 2002-09-17 | 2004-03-24 | Riken | Microscope system |
| EP2650724A1 (en) * | 2010-12-06 | 2013-10-16 | Olympus Corporation | Light adjusting device |
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