CN116211240A

CN116211240A - Integrated beam splitter and slit lamp microscope

Info

Publication number: CN116211240A
Application number: CN202310170609.2A
Authority: CN
Inventors: 张权; 周江; 李华
Original assignee: Wanling Bangqiao Medical Equipment Suzhou Co ltd
Current assignee: Wanling Bangqiao Medical Equipment Suzhou Co ltd
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-06-06

Abstract

The application belongs to medical instrument technical field, discloses an integral type beam splitter and slit lamp microscope, and integral type beam splitter includes the casing, is provided with the lens hole on the casing, and outside light is penetrated from the lens hole. The light splitting assembly, the depth of field adjusting device and the optical filter switching device are arranged in the shell. The light splitting assembly divides incident light rays entering from the lens hole into transmitted light rays and reflected light rays, the optical filter switching device is close to the horizontal end of the shell, and the depth of field adjusting device is arranged between the light splitting assembly and the optical filter switching device. When the depth of field adjusting device is pushed and pulled, the lens can be switched, and when the reflected light passes through the depth of field adjusting device, the depth of field of the reflected light is adjusted by the depth of field adjusting device. The optical filter switching device switches the optical filter to filter the reflected light passing through the depth of field adjusting device, so that the condition of different parts of eyes of an observer can be observed better.

Description

Integrated beam splitter and slit lamp microscope

Technical Field

The application relates to the technical field of medical instruments, for example, to an integrated beam splitter and slit lamp microscope.

Background

At present, a slit lamp microscope is widely used for eye examination, and comprises a microscope assembly, a slit lamp assembly and a beam splitting prism, wherein the slit lamp assembly can illuminate eyes, and the conditions of the eyes can be observed through the microscope assembly. The beam splitter prism divides incident light into two types, one type of light enters the microscope assembly for an observer to observe eyes. The other type of light enters the lens of the camera, and the camera shoots to obtain an eye image. An existing slit-lamp microscope, such as a slit-lamp integrated photographing device disclosed in CN202908677U, comprises a beam-splitting prism, wherein the beam-splitting prism is arranged in a shell, and an inclined beam-splitting surface is arranged in the beam-splitting prism. The shell is provided with a lens hole, and light rays passing through the lens hole are separated at the light splitting surface. The casing that is provided with beam splitting prism of this prior art does not have depth of field adjusting device and light filter auto-change over device in, can't adjust depth of field and auto-change over light filter, can not better observation eyes different positions's condition.

In summary, the existing slit lamp apparatus has the problems that the depth of field cannot be adjusted and/or different parts of the eyes cannot be observed well.

Disclosure of Invention

The purpose of the application is that: the integrated beam splitter and slit lamp microscope can solve the problems that the existing slit lamp device cannot adjust the depth of field and/or cannot observe different parts of eyes well.

In order to achieve the above purpose, the present application provides an integrated beam splitter, which includes a housing, a lens hole is provided on the housing, and a beam splitter assembly, a depth of field adjusting device and a filter switching device are provided in the housing; the light splitting assembly splits incident light rays incident from the lens holes into transmitted light rays and reflected light rays; the optical filter switching device is close to the horizontal end of the shell, and the depth of field adjusting device is arranged between the light splitting assembly and the optical filter switching device; the depth of field adjusting device adjusts the depth of field of the reflected light, and the optical filter switching device switches the optical filter to filter the reflected light passing through the depth of field adjusting device.

Preferably, the depth of field adjusting device comprises a switching block seat, a switching block, a control rod and a control rod nut, wherein a groove is formed in the switching block seat, the switching block is arranged in the groove, a through hole is formed in the side wall of the switching block, and the control rod penetrates through the through hole and stretches into the switching block; the control rod nut is connected with the control rod, and the depth of field is adjusted by pushing and pulling the control rod nut.

Preferably, the integrated beam splitter further comprises a first connecting cylinder, a second connecting cylinder and a connecting ring, wherein the first connecting cylinder is arranged in the shell, the second connecting cylinder is detachably connected with the first connecting cylinder, the connecting ring is detachably connected with the second connecting cylinder, and the connecting ring is used for installing a camera.

Preferably, the integrated beam splitter further comprises a reflector seat and a reflector, wherein the reflector seat is arranged in the first connecting cylinder, and the reflector seat is provided with the reflector.

Preferably, the light splitting assembly comprises a light splitting prism and a light splitting prism seat, wherein the light splitting prism seat comprises two fixing parts which are oppositely arranged, and the two fixing parts form a space capable of accommodating the light splitting prism; a light splitting surface is arranged in the light splitting prism, and the reflecting mirror is parallel to the light splitting surface.

Preferably, the optical filter switching device comprises a fixing plate and an optical filter, wherein the optical filter is connected with the fixing plate, and a mounting hole is formed in the optical filter and is used for mounting the optical filter.

The application also provides a slit lamp microscope comprising the integrated beam splitter of any one of the above, and further comprising a support base, a first support arm, a second support arm, a microscope assembly and a slit lamp assembly; the first support arm and the second support arm are hinged to the support seat, the first support arm is connected with the integrated beam splitter, and the integrated beam splitter is connected with the microscope assembly; the second support arm is connected with the slit lamp assembly.

Preferably, the slit-lamp microscope further comprises a bottom plate and a control mechanism; the supporting seat is connected with the bottom plate, and the control mechanism is connected with the supporting seat; the control mechanism is used for lifting the slit lamp assembly.

Preferably, the slit-lamp microscope further comprises a head frame, the head frame is connected with the bottom plate, the head frame comprises a forehead support and a jaw support, the forehead support is arranged above the jaw support, and the forehead support and the jaw support form a space for accommodating the head of a person to be tested.

Preferably, the slit lamp assembly comprises a slit lamp body and a background lamp, wherein the slit lamp body is arranged at the top end of the second supporting arm, the background lamp is arranged on the second supporting arm, and the background lamp is arranged below the slit lamp body.

The integrated beam splitter of the application comprises a shell, wherein a lens hole is formed in the shell, and external light rays are emitted from the lens hole. The light splitting assembly, the depth of field adjusting device and the optical filter switching device are arranged in the shell. The light splitting assembly divides incident light rays entering from the lens hole into transmitted light rays and reflected light rays, the optical filter switching device is close to the horizontal end of the shell, and the depth of field adjusting device is arranged between the light splitting assembly and the optical filter switching device. When the depth of field adjusting device is pushed and pulled, the lens can be switched, and when the reflected light passes through the depth of field adjusting device, the depth of field of the reflected light is adjusted by the depth of field adjusting device. The optical filter switching device switches the optical filter to filter the reflected light passing through the depth of field adjusting device, so that the condition of different parts of eyes of an observer can be observed better.

Drawings

FIG. 1 is a schematic diagram of a first structure of an integrated beam splitter according to an embodiment;

FIG. 2 is a schematic diagram of a second structure of an integrated beam splitter according to an embodiment;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is a schematic structural diagram of a spectroscopic assembly according to an embodiment;

FIG. 5 is a schematic view of a depth of field adjusting device according to an embodiment;

FIG. 6 is a schematic diagram of a filter switching device according to an embodiment;

FIG. 7 is a schematic structural view of a first connecting cylinder and a second connecting cylinder according to an embodiment;

FIG. 8 is a front view of a slit lamp microscope of an embodiment.

Wherein: 1. an integrated beam splitter; 11. a housing; 111. a lens aperture; 12. a light splitting component; 121. a beam-splitting prism; 122. a beam-splitting prism base; 123. prism gaskets; 13. a depth-of-field adjustment device; 131. a switching block seat; 132. a switching block; 133. a control lever; 134. a control rod nut; 14. a filter switching device; 141. a fixing plate; 142. a light filter; 15. a first connecting cylinder; 16. a second connecting cylinder; 17. a connecting ring; 18. a reflector seat; 19. a reflective mirror; 2. a support base; 3. a first support arm; 4. a second support arm; 5. a microscope assembly; 6. a slit lamp assembly; 61. a slit lamp body; 62. a backlight; 7. a bottom plate; 8. a control mechanism; 9. a headstock; 91. a forehead support; 92. a jaw support.

The implementation, functional features and advantages of the present application will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the connection may be mechanical connection, direct connection or indirect connection through an intermediate medium, and may be internal connection of two elements or interaction relationship of two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In one embodiment, referring to fig. 1-2, the integrated beam splitter 1 includes a housing 11, a lens hole 111 is provided on the housing 11, and a beam splitter assembly 12, a depth of field adjusting device 13, and an optical filter switching device 14 are provided in the housing 11; the light splitting assembly 12 splits incident light rays incident from the lens hole 111 into transmitted light rays and reflected light rays; the optical filter switching device 14 is close to the horizontal end of the shell 11, and the depth of field adjusting device 13 is arranged between the light splitting assembly 12 and the optical filter switching device 14; the depth of field adjusting device 13 adjusts the depth of field of the reflected light, and the filter switching device 14 switches the filter to filter the reflected light passing through the depth of field adjusting device 13.

The housing 11 includes a convex end and a horizontal end, and the horizontal end of the housing 11 is provided with a bottom cover. A lens hole 111 is provided on the outer side of the housing 11 near the convex end, and a lens fitted to the lens hole 111 is provided on the inner side of the housing 11 at a position corresponding to the lens hole 111. A beam splitting unit 12 is provided behind the lens, and an incident light beam incident from the lens hole 111 is split at the beam splitting unit 12 to form a reflected light beam and a transmitted light beam.

The optical filter switching device 14 is close to the horizontal end of the shell 11, the optical filter switching device 14 is connected with a motor, the optical filter is switched by controlling the optical filter switching device 14 through the motor, the optical filter filters the reflected light passing through the depth of field adjusting device 13, and the optical filter comprises a visible light optical filter and an infrared light optical filter.

The depth of field adjusting device 13 is arranged between the beam splitting component 12 and the optical filter switching device 14, the reflected light passes through the depth of field adjusting device 13, and the depth of field of the reflected light is adjusted by the depth of field adjusting device 13. The depth of field adjusting device 13 can be pushed and pulled, and the lenses of the depth of field adjusting device 13 are switched, so that the change degree of the depth of field of the reflected light is different for different lenses.

The integrated spectroscope 1 of the embodiment of the present application includes a housing 11, a lens hole 111 is provided on the housing 11, and external light is incident from the lens hole 111. A spectroscopic module 12, a depth-of-field adjusting device 13, and a filter switching device 14 are provided in the housing 11. The beam splitter 12 splits the incident light beam from the lens hole 111 into a transmitted light beam and a reflected light beam, the filter switching device 14 is near the horizontal end of the housing 11, and the depth-of-field adjusting device 13 is disposed between the beam splitter 12 and the filter switching device 14. When the depth of field adjusting device 13 is pushed and pulled, the lens can be switched, and when the reflected light passes through the depth of field adjusting device 13, the depth of field adjusting device 13 adjusts the depth of field of the reflected light. The filter switching device 14 switches the filter to filter the reflected light passing through the depth of field adjusting device 13, so that the condition of different parts of the eyes of the observer can be observed better.

In one embodiment, referring to fig. 5, the depth of field adjusting device 13 includes a switch block seat 131, a switch block 132, a control rod 133, and a control rod nut 134, where a groove is provided on the switch block seat 131, the switch block 132 is provided in the groove, a through hole is provided on a side wall of the switch block 132, and the control rod 133 extends into the switch block 132 through the through hole; the control rod nut 134 is connected to the control rod 133, and the depth of field is adjusted by pushing and pulling the control rod nut 134.

The side of the housing 1 is provided with a through hole from which a lever 133 extends and is fixedly or detachably connected with a lever nut 134.

The switch block 132 is provided with a plurality of lenses, and the control rod 133 is pushed and pulled along the direction of the groove of the switch block seat 131, so that the switch block 132 can be controlled to switch the lenses, and the adjustment degree of the depth of field of the reflected light is changed.

The lever nut 134 includes an inner nut coupled to the lever 133 and an outer nut coupled to the inner nut. The shape of the outer nut may be cylindrical or hexagonal, which is not limited herein, and the outer nut in this embodiment is exemplified by a cylindrical shape.

The switching block seat 131 is provided with a through hole, and the through hole may be rectangular or circular, which is taken as an example in the embodiment of the present application.

An adjusting seat and a lens seat are further arranged in the shell 1, the adjusting seat is arranged on one side, far away from the switching block 132, of the switching block seat 131, and the position of the adjusting seat corresponds to the position of the through hole of the switching block seat 131. The lens seat is provided with a through hole, the adjusting seat penetrates through the through hole of the lens seat, and an imaging lens is arranged in the adjusting seat.

The imaging lens is provided with a focusing screw sleeve, the focusing screw sleeve is provided with a focusing nut penetrating out of the shell 1, and the position of the imaging lens can be adjusted by rotating the focusing nut.

As described above, the depth of field adjusting device 13 includes the switching block seat 131, the switching block 132, the control lever 133 and the control lever nut 134, the switching block seat 131 is provided with a groove, the switching block 132 is provided in the groove, the sidewall of the switching block 132 is provided with a through hole, and the control lever 133 passes through the through hole and extends into the switching block 132; a control rod nut 134 is coupled to the control rod 133 to adjust depth of field by pushing and pulling the control rod nut 134. The control rod 133 is pushed and pulled along the direction of the groove of the switching block seat 131, so that the switching block 132 can be controlled to switch the lens, and the adjustment degree of the depth of field of the reflected light is changed.

In one embodiment, referring to fig. 3 and 7, the integrated optical splitter 1 further includes a first connecting cylinder 15, a second connecting cylinder 16, and a connecting ring 17, where the first connecting cylinder 15 is disposed in the housing 11, the second connecting cylinder 16 is detachably connected to the first connecting cylinder 15, the connecting ring 17 is detachably connected to the second connecting cylinder 16, and the connecting ring 17 is used for installing a camera.

The integrated beam splitter 1 further comprises a reflector seat 18 and a reflector 19, wherein the reflector seat 18 is arranged in the first connecting cylinder 15, and the reflector 19 is arranged on the reflector seat 18.

The interface of the first connecting cylinder 15 is matched with the interface of the second connecting cylinder 16, the interface of the second connecting cylinder 16 is matched with the connecting ring 17, when the first connecting cylinder 15 is installed in the shell 11, the second connecting cylinder 16 is inserted into the interface of the first connecting cylinder 15, the connecting ring 17 is detachably connected with the second connecting cylinder 16, and the connecting ring 17 can be inserted into a camera.

The integrated beam splitter 1 further comprises a cover body, the cover body is matched with the shell 11, and an opening for the first connecting cylinder 15 to extend out is formed in the position, close to the horizontal end of the shell 11, of the cover body. The protruding end of the cover body, which is close to the shell 11, is provided with a connecting port for connecting the microscope assembly 5, and the microscope assembly 5 is inserted into the connecting port. The cover body is also provided with a fastening screw, and the microscope assembly 5 can be fixed on the cover body through the fastening screw.

The mirror base 18 is used for fixing the mirror 19, and an adjusting plate is arranged below the mirror base 18, and the angle between the mirror base 18 and the mirror 19 can be adjusted through the adjusting plate. When the light splitting surfaces of the reflector 19 and the light splitting prism 121 are not parallel, the angle of the reflector 19 is adjusted so that the light splitting surfaces of the reflector 19 and the light splitting prism 121 are parallel, and a good camera shooting effect is ensured. After the reflected light enters the first connecting cylinder 15, the reflector 19 reflects the reflected light again to obtain outgoing light. The emergent light rays are emitted from the first connecting cylinder 15, enter the lens of the camera through the second connecting cylinder 16 and the connecting ring 17, and the camera shoots to obtain an eye image.

Preferably, the camera is an industrial camera, such as a CCD camera or a CMOS camera.

As described above, the integrated spectroscope 1 further includes the first connecting cylinder 15, the second connecting cylinder 16, and the connecting ring 17, the first connecting cylinder 15 is disposed in the housing 11, the second connecting cylinder 16 is detachably connected with the first connecting cylinder 15, the connecting ring 17 is detachably connected with the second connecting cylinder 16, and the connecting ring 17 is used for installing a camera. The integrated beam splitter 1 further includes a mirror seat 18 and a mirror 19, the mirror seat 18 is disposed in the first connecting cylinder 15, and the mirror 19 is disposed on the mirror seat 18. After the reflected light enters the first connecting tube 15, the reflector 19 reflects the reflected light again to obtain emergent light, the emergent light enters the lens of the camera through the second connecting tube 16 and the connecting ring 17, and the camera shoots to obtain an eye image.

In one embodiment, referring to fig. 3 to 4, the light splitting assembly 12 includes a light splitting prism 121 and a light splitting prism holder 122, and the light splitting prism holder 122 includes two fixing portions disposed opposite to each other, and the two fixing portions form a space capable of accommodating the light splitting prism 121; a light splitting surface is provided in the light splitting prism 121, and the reflecting mirror 19 is parallel to the light splitting surface.

Preferably, the prism gasket 123 is disposed on one fixing portion or two fixing portions of the beam-splitting prism seat 122, and the prism gasket 123 can better fix the beam-splitting prism 121, and in this embodiment, the prism gasket 123 is disposed on one fixing portion of the beam-splitting prism seat 122.

The light splitting surface is an inclined surface, and the inclination angle of the light splitting surface can be 45 degrees or other degrees, and is not limited herein.

The mirror 19 is parallel to the light-splitting plane so that the outgoing light obtained after the reflected light is reflected again by the mirror 19 is parallel to the incoming light.

The prism mount 122 further includes a bottom portion detachably connected to the housing 1. The bottom of the prism mount 122 is integrally formed with the fixing portion, and the prism 121 is abutted against the fixing portion of the prism mount 122 where the prism gasket 123 is not provided, so that the prism mount 122 can fix the prism 121.

As described above, the light-splitting module 12 includes the light-splitting prism 121 and the light-splitting prism holder 122, and the light-splitting prism holder 122 includes two fixing portions disposed opposite to each other, and the two fixing portions form a space in which the light-splitting prism 121 can be accommodated; a light splitting surface is provided in the light splitting prism 121, and the reflecting mirror 19 is parallel to the light splitting surface. The prism mount 122 can fix the prism 121.

In one embodiment, referring to fig. 6, the filter switching device 14 includes a fixing plate 141 and a filter 142, the filter 142 is connected to the fixing plate 141, and a mounting hole is formed in the filter 142, and the mounting hole is used for mounting the filter.

The fixing plate 141 is detachably connected to the housing 1, and the filter 142 is detachably connected to the fixing plate 141. The filter 142 is connected to a motor, and the filter 142 is controlled by the motor to switch the filter.

The filters include a visible light filter with which the eye can be observed in general, such as viewing the tear level of the eye and determining the tear film break time, and an infrared light filter with which meibomian gland analysis can be performed.

As described above, the filter switching device 14 includes the fixing plate 141 and the filter 142, the filter 142 is connected to the fixing plate 141, and the filter 142 is provided with the mounting hole for mounting the filter. The optical filters include a visible light filter, which can be used to observe the general condition of the eye, and an infrared light filter, which can be used to perform meibomian gland analysis.

In one embodiment, the present application further provides a slit lamp microscope, referring to fig. 8, comprising the integrated beam splitter 1 of any one of claims 1 to 6, the slit lamp further comprising a support base 2, a first support arm 3, a second support arm 4, a microscope assembly 5, and a slit lamp assembly 6; the first supporting arm 3 and the second supporting arm 4 are hinged to the supporting seat 2, the first supporting arm 3 is connected with the integrated beam splitter 1, and the integrated beam splitter 1 is connected with the microscope assembly 5; the second support arm 4 is connected to the slit lamp assembly 6.

The first end of the first supporting arm 3 is hinged with the supporting seat 2, the second end of the first supporting arm 3 is connected with the integrated beam splitter 1, and the first supporting arm 3 is J-shaped. The first support arm 3 is used for supporting the integrated beam splitter 1 and the microscope assembly 5, preferably the first support arm 3 is rotatable, and rotating the first support arm 3 can adjust the relative positions between the integrated beam splitter 1, the microscope assembly 5 and the eyes of the observer.

The first end of the second support arm 4 is hinged with the support base 2, and the second end of the second support arm 4 is connected with the slit lamp assembly 6, and the slit lamp assembly is used for providing a light source, so that different parts of eyes are clearer. The second support arm 4 has a higher height than the first support arm 3. The second support arm 4 is used to support the slit lamp assembly 6, preferably the second support arm 4 is rotatable, the rotation of the second support arm 4 enabling adjustment of the relative position between the slit lamp assembly 6 and the eye of the observer.

The microscope unit 5 is connected to the integrated beam splitter 1, and the microscope unit 5 includes an objective lens and an eyepiece lens, and is capable of magnifying an image on the objective lens by varying magnification, and observing conditions of different portions of the eye through the eyepiece lens.

Preferably, a measuring scale is arranged between the first end of the first support arm 3 and the first end of the second support arm 4, scale values are marked on the measuring scale, and the measuring scale is used for measuring displacement amounts of the first support arm 3 and the second support arm 4.

As described above, the slit lamp further comprises a support base 2, a first support arm 3, a second support arm 4, a microscope assembly 5 and a slit lamp assembly 6; the first support arm 3 and the second support arm 4 are hinged on the support seat 2, the first support arm 3 is connected with the integrated beam splitter 1, and the integrated beam splitter 1 is connected with the microscope assembly 5; the second support arm 4 is connected to a slit lamp assembly 6. The slit lamp assembly 6 is used to provide a light source to make different parts of the eye clearer. The microscope unit 5 can amplify the received image, and the condition of different parts of the eye can be observed by the microscope unit 5.

In one embodiment, referring to fig. 8, the slit-lamp microscope further comprises a bottom plate 7 and a control mechanism 8, the support base 2 is connected to the bottom plate 7, and the control mechanism 8 is connected to the support base 2; the control mechanism 8 is used for lifting and lowering the slit lamp assembly 6.

The supporting seat 2 is disposed on one side of the bottom plate 7 near the integrated beam splitter 1, and the supporting seat 2 may be fixedly connected with the bottom plate 7 or detachably connected with the bottom plate 7, which is not limited herein.

The control mechanism 8 may be a handle, or may be other mechanisms, and is not limited herein, and the handle is taken as an example in the embodiment of the present application. The slit-lamp microscope further comprises an electric box, wherein the electric box is arranged at the lower part of the bottom plate 7, and a power supply is arranged in the electric box. Preferably, a charging interface is arranged on the electric box, and a battery in the electric box can be charged through the charging interface. The electric box is provided with a start button and a shutdown button, and when the start button is pressed, a power supply is started and the slit lamp assembly 6 is powered; when the shutdown button is pressed, the power is turned off, causing the slit lamp assembly 6 to stop operating.

The electric box may be detachably connected to the base plate 7, or may be fixedly connected to the base plate 7, which is not limited herein.

The control mechanism 8 is connected with the motor of the supporting seat 2, the control mechanism 8 is also connected with the motor of the slit lamp assembly 6 and/or the motor of the microscope assembly 5, and in the embodiment of the application, the control mechanism 8 is connected with the motor of the slit lamp assembly 6. The control mechanism 8 is shifted leftwards, so that the supporting seat 2, the microscope assembly 5 and the slit lamp assembly 6 move leftwards; a dial-forward control mechanism 8 that moves the support base 2, the microscope assembly 5 and the slit lamp assembly 6 forward; the rotation control mechanism 8 can control the elevation of the slit lamp assembly 6.

The slit-lamp microscope further comprises a head frame 9, the head frame 9 is connected with the bottom plate 7, the head frame 9 comprises a forehead support 91 and a jaw support 92, the forehead support 91 is arranged above the jaw support 92, and the forehead support 91 and the jaw support 92 form a space for accommodating the head of a person to be tested.

The headstock 9 is disposed opposite the microscope assembly 5 on either side of the slit lamp assembly 6 such that the microscope assembly 5 is capable of viewing the eye of the observer illuminated by the slit lamp assembly 6. Preferably, the headstock 9 and the electric box are respectively arranged at two opposite sides of the lower part of the base plate 7.

The lower part of the bottom plate 7 is provided with a connecting part, and the bottom of the headstock 9 is connected with the connecting part of the bottom plate 7. The forehead support 91 is abutted with the forehead of the person to be observed, the jaw support 92 supports the mandible of the person to be observed, and the head of the person to be observed can be fixed through the forehead support 91 and the jaw support 92.

The height of the head frame 9 is lower than the height of the slit lamp body 61, and may be the same as the height of the slit lamp body 61, which is not limited herein, and the embodiment of the present application takes the example that the height of the head frame 9 is the same as the height of the slit lamp body 61.

Preferably, the headstock 9 is provided with a motor, and the height of the headstock 9 is adjusted by driving the motor on the headstock 9 through the control mechanism 8.

As described above, the slit lamp microscope further comprises a bottom plate 7 and a control mechanism 8, the support base 2 is connected with the bottom plate 7, and the control mechanism 8 is connected with the support base 2. The slit-lamp microscope further comprises a head frame 9, the head frame 9 is connected with the bottom plate 7, the head frame 9 comprises a forehead support 91 and a jaw support 92, the forehead support 91 is arranged above the jaw support 92, and the forehead support 91 and the jaw support 92 form a space for accommodating the head of a person to be tested. The control mechanism 8 can control the supporting seat 2, the microscope assembly 5 and the slit lamp assembly 6 to move in three directions in three-dimensional space, and change the relative positions between the slit lamp assembly 6 and the headstock 9, so that the condition of different parts of eyes of an observer can be observed better. The forehead support 91 is abutted with the forehead of the person to be observed, the jaw support 92 supports the mandible of the person to be observed, and the head of the person to be observed can be fixed through the forehead support 91 and the jaw support 92.

In one embodiment, referring to fig. 8, the slit lamp assembly 6 includes a slit lamp body 61 and a backlight 62, the slit lamp body 61 is disposed at the top end of the second support arm 4, the backlight 62 is disposed on the second support arm 4, and the backlight 62 is located below the slit lamp body 61.

Preferably, the front end of the slit lamp body 61 is provided with a ranging sensor for measuring the distance between the slit lamp body 61 and the eyes of the observer, and the ranging sensor may be an electro-optical ranging sensor or an infrared ranging sensor.

The slit lamp body 61 is used for providing a light source, and the lamplight emitted by the slit lamp body 61 illuminates eyes of an observer through slits, so that conditions of various parts of the eyes of the observer can be observed. The backlight 62 may be inclined toward the head frame, and the inclination angle of the backlight 62 may be 15 degrees, or may be other angles, which is not limited herein. The backlight 62 is used for supplementing a light source, and the slit lamp body 61 and the backlight 62 are combined, so that the eyes of the observer can be well illuminated.

The second support arm 4 is capable of supporting the slit lamp body 61 and providing a slit blade.

As described above, the slit lamp assembly 6 includes the slit lamp body 61 and the backlight 62, the slit lamp body 61 is disposed at the top end of the second supporting arm 4, the backlight 62 is disposed on the second supporting arm 4, and the backlight 62 is located below the slit lamp body 61. The slit lamp body 61 is used for providing a light source for illuminating eyes of an observer. The backlight 62 is used for supplementing a light source, and the slit lamp body 61 and the backlight 62 are combined, so that the eyes of the observer can be well illuminated.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the invention.

Claims

1. The integrated beam splitter is characterized by comprising a shell, wherein a lens hole is formed in the shell, and a beam splitting assembly, a depth of field adjusting device and an optical filter switching device are arranged in the shell; the light splitting assembly splits incident light rays incident from the lens holes into transmitted light rays and reflected light rays; the optical filter switching device is close to the horizontal end of the shell, and the depth of field adjusting device is arranged between the light splitting assembly and the optical filter switching device; the depth of field adjusting device adjusts the depth of field of the reflected light, and the optical filter switching device switches the optical filter to filter the reflected light passing through the depth of field adjusting device.

2. The integrated beam splitter according to claim 1, wherein the depth of field adjusting device comprises a switching block seat, a switching block, a control rod and a control rod nut, a groove is formed in the switching block seat, the switching block is arranged in the groove, a through hole is formed in the side wall of the switching block, and the control rod extends into the switching block through the through hole; the control rod nut is connected with the control rod, and the depth of field is adjusted by pushing and pulling the control rod nut.

3. The integrated beam splitter of claim 1, further comprising a first connection barrel, a second connection barrel, and a connection ring, wherein the first connection barrel is disposed in the housing, the second connection barrel is detachably connected to the first connection barrel, the connection ring is detachably connected to the second connection barrel, and the connection ring is used for mounting a camera.

4. The integrated beam splitter of claim 3, further comprising a mirror mount and a mirror, wherein the mirror mount is disposed within the first connection barrel, and wherein the mirror is disposed on the mirror mount.

5. The integrated beam splitter according to claim 4, wherein the beam splitter assembly comprises a beam splitter prism and a beam splitter prism holder, the beam splitter prism holder comprises two fixing parts which are arranged oppositely, and the two fixing parts form a space capable of accommodating the beam splitter prism; a light splitting surface is arranged in the light splitting prism, and the reflecting mirror is parallel to the light splitting surface.

6. The integrated beam splitter according to claim 2, wherein the optical filter switching device comprises a fixing plate and an optical filter, the optical filter is connected with the fixing plate, and a mounting hole is formed in the optical filter and is used for mounting the optical filter.

7. A slit lamp microscope comprising the integrated beam splitter of any one of claims 1-6, the slit lamp further comprising a support base, a first support arm, a second support arm, a microscope assembly, and a slit lamp assembly; the first support arm and the second support arm are hinged to the support seat, the first support arm is connected with the integrated beam splitter, and the integrated beam splitter is connected with the microscope assembly; the second support arm is connected with the slit lamp assembly.

8. The slit lamp microscope of claim 7, further comprising a base plate and a control mechanism; the supporting seat is connected with the bottom plate, and the control mechanism is connected with the supporting seat; the control mechanism is used for lifting the slit lamp assembly.

9. The slit lamp microscope of claim 8, further comprising a head rest connected to the base plate, the head rest including a forehead rest and a jaw rest, the forehead rest being disposed above the jaw rest, the forehead rest and the jaw rest forming a space for receiving a head of a person to be tested.

10. The slit lamp microscope of claim 8, wherein the slit lamp assembly comprises a slit lamp body and a background lamp, the slit lamp body is disposed at a top end of the second support arm, the background lamp is disposed on the second support arm, and the background lamp is located below the slit lamp body.