CN217112871U

CN217112871U - Optical system of operating microscope

Info

Publication number: CN217112871U
Application number: CN202221723476.4U
Authority: CN
Inventors: 岑宸翊
Original assignee: Wuhan University of Science and Engineering WUSE
Current assignee: Wuhan University of Science and Engineering WUSE
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2022-08-02
Anticipated expiration: 2032-07-06

Abstract

The utility model provides an optical system of operation microscope, include: the light emitted by the plurality of light sources sequentially passes through the dimming component, the condenser group, the diaphragm, the reflector and the projection lens, the focal length of each projection lens is different, the controllability of the size of a light spot is improved, the light emitted by the plurality of optical components reaches a working area through the large objective group to provide illumination for the working area, the plurality of optical components can be mutually independent and matched, therefore, a plurality of groups of optical components can be selected to work independently or simultaneously according to requirements, the controllability of facula is improved, the light adjusting component is used for adjusting the illumination intensity passing through the first condenser lens group and the second condenser lens group, the light and shade degree of the light spots can be controlled according to the actual situation, and the controllability of the light and shade degree of the light spots is improved.

Description

Optical system of operating microscope

Technical Field

The utility model relates to an illumination optical system technical field particularly, relates to an operation microscope's optical system.

Background

The illumination optical system is an important component of an operation microscope, provides clear and bright operation visual field and observation details for an operation process, and helps the operation of ophthalmology, brain surgery and the like to be safely and effectively carried out.

At present, the optical system for the surgical microscope in the prior art has the defects of low controllability of spot size and brightness.

SUMMERY OF THE UTILITY MODEL

In order to compensate the above deficiency, the utility model provides an optical system of an operation microscope, aiming at solving the problem that the optical system for the operation microscope in the prior art has the low controllability of spot size and light and shade degree.

For solving the technical scheme, the utility model discloses a realize like this:

an optical system of a surgical microscope, comprising:

the light source comprises a plurality of groups of optical components, each group of optical components comprises a light source, a light adjusting component, a condenser group, a diaphragm, a reflecting mirror and a projecting mirror, the light emitted by the light sources sequentially passes through the light adjusting component, the condenser group, the diaphragm, the reflecting mirror and the projecting mirror, and the focal lengths of the projecting mirrors in each group are different;

the dimming assembly comprises a motor, an output shaft of the motor is connected with a backlight surface of a first light shading disc through a connecting rod, a plurality of fan-shaped light transmitting areas are formed in a light receiving surface of the first light shading disc along the circumferential direction of the light receiving surface, light transmitting holes are formed in the light receiving surfaces of the light transmitting areas, the apertures of the light transmitting holes in different light transmitting areas are unequal, a second light shading disc is rotatably connected to the light receiving surface of the first light shading disc, and light transmitting adjusting holes matched with the light transmitting holes are formed in the light receiving surface of the second light shading disc;

and the light emitted by the plurality of groups of optical components reaches a working area through the large objective group so as to provide illumination for the working area.

In an embodiment of the present invention, the number of the optical components is two, two sets of the optical components are respectively a first optical component and a second optical component, the first optical component includes a first light source, a light modulation component, a first condenser lens, a first diaphragm, a first reflector and a first projection lens, light emitted from the first light source passes through the light modulation component, the first condenser lens, the first diaphragm, the first reflector and the first projection lens in sequence, the second optical component includes a second light source, a light modulation component, a second condenser lens, a second diaphragm, a second reflector and a second projection lens, light emitted from the second light source passes through the light modulation component, the second condenser lens, the second diaphragm, the second reflector and the second projection lens in sequence.

In an embodiment of the present invention, the first optical shielding plate and the second optical shielding plate are coaxially disposed, and the central axis of the first optical shielding plate and the central axis of the second optical shielding plate are not coincident with the optical axis of the first optical assembly and the optical axis of the second optical assembly.

The utility model discloses an in the embodiment, the quantity in printing opacity district is four, four the area in printing opacity district equals, is located same in the printing opacity district the aperture of light trap equals, is located the difference the aperture of light trap in the printing opacity district increases gradually along clockwise.

In an embodiment of the present invention, the shape of the light-transmitting adjusting hole is fan-shaped, the light-transmitting adjusting hole is deviated from the center of the second light-shielding plate, and the second light-shielding plate is fixedly connected to the microscope body.

In an embodiment of the present invention, the first light-shielding plate and the second light-shielding plate are made of opaque material.

In an embodiment of the present invention, the optical axes of the first optical component and the second optical component are symmetrically distributed along the optical axis of the large objective lens group.

In an embodiment of the present invention, the first light source and the second light source are any one of a xenon light source, a halogen light source, and an LED light source.

In an embodiment of the present invention, the first diaphragm is located at a distance from the first projection mirror, and the second diaphragm is located at a distance from the second projection mirror, which is different from the first projection mirror.

The utility model has the advantages that:

1. the utility model discloses a design has first optical assembly and second optical assembly, and the light that first optical assembly and second optical assembly throw out reachs the workspace through big objective group for the illumination of workspace, the during operation, first optical assembly and second optical assembly both can mutually independent, can mutually support again, consequently can select first optical assembly and second optical assembly autonomous working or simultaneous working according to actual conditions, improve the controllability of facula.

2. The utility model discloses a first diaphragm and second diaphragm in first optical assembly and the second optical assembly are at the variation in size of workspace formation of image, can obtain two faculas of unequal size at the workspace, consequently can select the facula of equidimension not according to actual conditions in actual work, improve the controllability to the size of facula.

3. The utility model discloses a subassembly of adjusting luminance is used for adjusting the illumination intensity through first condenser lens group and second condenser lens group for can improve the controllability to the light and shade degree of facula according to the light and shade degree of actual conditions control facula.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an optical system of an operating microscope according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a dimming assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of the first louver disc and the second louver disc according to the embodiment of the present invention.

In the figure: 1. a first optical component; 101. a first light source; 102. a first condenser lens group; 103. a first diaphragm; 104. a first reflector; 105. a first projection mirror; 2. a second optical component; 201. a second light source; 202. a second condenser lens group; 203. a second diaphragm; 204. a second reflector; 205. a second projection mirror; 1-2, a light adjusting component; 1-20, a first shading disc; 1-200 parts of light holes; 1-21, a second shading disc; 1-210, a light transmission adjusting hole; 3. a large objective lens group; 4. a working area.

Detailed Description

The following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides a technical solution:

an optical system of a surgical microscope, comprising:

the multi-optical component comprises a light source, a dimming component 1-2, a condenser group, a diaphragm, a reflector and a projection mirror, wherein light emitted by the light sources sequentially passes through the dimming component 1-2, the condenser group, the diaphragm, the reflector and the projection mirror, and the focal lengths of the projection mirrors are different;

the dimming assembly 1-2 comprises a motor, an output shaft of the motor is connected with a backlight surface of a first light shading disc 1-20 through a connecting rod, a plurality of fan-shaped light transmission areas are formed in the light incoming surface of the first light shading disc 1-20 along the circumferential direction of the light incoming surface, light transmission holes 1-200 are formed in the light incoming surfaces of the light transmission areas, the apertures of the light transmission holes 1-200 in different light transmission areas are unequal, the light incoming surface of the first light shading disc 1-20 is rotatably connected with a second light shading disc 1-21, and light transmission adjusting holes 1-210 matched with the light transmission holes 1-200 are formed in the light incoming surface of the second light shading disc 1-21;

the light emitted by the multiple groups of optical components reaches the working area 4 through the large objective lens group 3 so as to provide illumination for the working area 4.

Specifically, as shown in fig. 1, the multiple groups of optical assemblies may be independent from each other, or may be matched with each other, so that the multiple groups of optical assemblies may be selected to work independently or simultaneously as required, thereby improving controllability of light spots.

Further, as shown in fig. 1-2, the operating principle of the dimming component 1-2 is as follows: the motor provides power to drive the first light shading disc 1-20 to rotate, the light holes 1-200 of the first light shading disc 1-20 rotate along with the first light shading disc in the rotating process, because the apertures of the light holes 1-200 in different light transmitting areas are not equal, when the different light transmitting areas of the first light shading disc 1-20 are overlapped with the light transmitting adjusting holes 1-210, the illumination intensity through the light transmitting adjusting holes 1-210 and the light holes 1-200 are not equal, when the light transmitting area with large aperture of the light holes 1-200 is overlapped with the light transmitting adjusting holes 1-210, the illumination intensity through the light adjusting component 1-2 is large, the light spot brightness formed in the working area 4 is high, when the light transmitting area with large aperture of the light holes 1-200 is overlapped with the light transmitting adjusting holes 1-210, the illumination intensity through the light adjusting component 1-2 is small, the light spot formed in the working area 4 has low brightness, and the controllability of the brightness of the light spot is improved by arranging the dimming component 1-2.

In this embodiment, the number of the plurality of sets of optical components is two, the two sets of optical components are respectively a first optical component 1 and a second optical component 2, the first optical component 1 includes a first light source 101, a dimming component 1-2, a first condenser group 102, a first diaphragm 103, a first reflector 104 and a first projection mirror 105, light emitted by the first light source 101 sequentially passes through the dimming component 1-2, the first condenser group 102, the first diaphragm 103, the first reflector 104 and the first projection mirror 105, the second optical component 2 includes a second light source 201, the dimming component 1-2, a second condenser group 202, a second diaphragm 203, a second reflector 204 and a second projection mirror 205, and light emitted by the second light source 201 sequentially passes through the dimming component 1-2, the second condenser group 202, the second diaphragm 203, the second reflector 204 and the second projection mirror 205.

Specifically, as shown in fig. 1, focal lengths of each group of projection mirrors are not equal, that is, focal lengths of the first projection mirror 105 and the second projection mirror 205 are not equal, that is, amplification factors of the first projection mirror 105 and the second projection mirror 205 to the first diaphragm 103 and the second diaphragm 203 are not equal, so that a first image and a second image formed by the first diaphragm 103 and the second diaphragm 203 in the working area 4 are not equal, that is, sizes of light spots obtained in the working area 4 are not equal, and controllability of the sizes of the light spots is improved.

In the embodiment, the first gobo disc 1-20 and the second gobo disc 1-21 are coaxially arranged, and the central axes of the first gobo disc 1-20 and the second gobo disc 1-21 are not coincident with the optical axes of the first optical assembly 1 and the second optical assembly 2.

In this embodiment, the number of the light-transmitting areas is four, the areas of the four light-transmitting areas are equal, the apertures of the light-transmitting holes 1 to 200 in the same light-transmitting area are equal, and the apertures of the light-transmitting holes 1 to 200 in different light-transmitting areas gradually increase in the clockwise direction.

Specifically, as shown in fig. 3, the light-transmitting areas in the four light-transmitting regions gradually increase in the clockwise direction.

In this embodiment, the light transmission adjusting holes 1-210 are fan-shaped, the light transmission adjusting holes 1-210 are disposed off the center of the second light shielding plate 1-21, and the second light shielding plate 1-21 is fixedly connected to the microscope body.

Specifically, as shown in fig. 3, the second shutter disk 1-21 is fixedly connected to the microscope body, the first shutter disk 1-20 is rotatably connected to the second shutter disk 1-21, when the motor is started, the first shutter disk 1-20 rotates while the second shutter disk 1-21 does not rotate, so that the relative rotation between the first shutter disk 1-20 and the second shutter disk 1-21 is realized, and when the first shutter disk 1-20 is rotated, the light transmission adjusting holes 1-210 can correspond to the light transmission holes 1-200 with different aperture sizes.

In this embodiment, the first light shielding plate 1-20 and the second light shielding plate 1-21 are made of opaque materials.

Specifically, the utility model discloses a light-tight material and the light-tight material among the prior art insubstantial difference, first goblet 1-20 and second goblet 1-21 all adopt light-tight material to make and are used for preventing light from reaching first diaphragm 103 and second diaphragm 203 through first goblet 1-20 and second goblet 1-21, guarantee the dimming effect of light adjusting component 1-2.

In the present embodiment, the optical axes of the first optical element 1 and the second optical element 2 are symmetrically distributed along the optical axis of the large objective lens group 3.

In the present embodiment, the first light source 101 and the second light source 201 are any one of a xenon light source, a halogen light source, and an LED light source.

In the present embodiment, the distance of the first diaphragm 103 from the first projection mirror 105 is not equal to the distance of the second diaphragm 203 from the second projection mirror 205.

Specifically, as shown in fig. 1, an image formed by light emitted from the first light source 101 passing through the dimming component 1-2, the first condenser lens group 102, the first diaphragm 103, the first reflector 104, the first projection lens 105 and the large objective lens group 3 in sequence is a first image, and an image formed by light emitted from the second light source 201 passing through the dimming component 1-2, the second condenser lens group 202, the second diaphragm 203, the second reflector 204, the second projection lens 205 and the large objective lens group 3 in sequence is a second image, and since the distance from the first diaphragm 103 to the first projection lens 105 is not equal to the distance from the second diaphragm 203 to the second projection lens 205, the sizes of the first image and the second image are not equal, that is, the sizes of light spots formed in the working area 4 are not equal.

Specifically, the operating principle of the optical system of the surgical microscope is as follows: when the utility model is used, the light emitted by the first light source 101 sequentially passes through the light adjusting component 1-2, the first condenser lens group 102, the first diaphragm 103, the first reflector 104, the first projector lens 105 and the large objective lens group 3 to form a first image, the light emitted by the second light source 201 sequentially passes through the light adjusting component 1-2, the second condenser lens group 202, the second diaphragm 203, the second reflector 204, the second projector lens 205 and the large objective lens group 3 to form a second image, the light adjusting component 1-2 is adopted to adjust the illumination intensity passing through the first condenser lens group 102 and the second condenser lens group 202, so that the light and shade degree of the light spot can be selected according to the actual situation, because the distance between the first diaphragm 103 and the first projector lens 105 is not equal to the distance between the second diaphragm 203 and the second projector lens 205, and the focal length of the first projector lens 105 and the second projector lens 205 is not equal to each other, so that the size of the first image and the second image is not equal, the facula size inequality that forms at workspace 4 promptly, the during operation, first optical assembly 1 and second optical assembly 2 both can mutually independent, can mutually support again, consequently can select first optical assembly 1 and second optical assembly 2 independent work or simultaneous working as required, reach the purpose that can select required facula according to actual conditions, thereby make and adopt the utility model discloses the facula size that forms and light and shade degree controllability are high.

It should be noted that the specific model specifications of the first light source 101 and the second light source 201 need to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art, so detailed description is omitted.

The power supply of the first light source 101 and the second light source 201 and the principle thereof will be clear to those skilled in the art and will not be described in detail herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An optical system of a surgical microscope, comprising: the multi-group optical components comprise light sources, dimming components (1-2), condenser groups, diaphragms, reflectors and projection mirrors, light emitted by the light sources sequentially passes through the dimming components (1-2), the condenser groups, the diaphragms, the reflectors and the projection mirrors, and focal lengths of the projection mirrors in each group are different;

the dimming assembly (1-2) comprises a motor, an output shaft of the motor is connected with a backlight surface of a first shading disc (1-20) through a connecting rod, a plurality of fan-shaped light transmission areas are formed in a light incoming surface of the first shading disc (1-20) along the circumferential direction of the first shading disc, light transmission holes (1-200) are formed in light incoming surfaces of the light transmission areas, apertures of the light transmission holes (1-200) in different light transmission areas are unequal, a light incoming surface of the first shading disc (1-20) is rotatably connected with a second shading disc (1-21), and a light transmission adjusting hole (1-210) matched with the light transmission hole (1-200) is formed in a light incoming surface of the second shading disc (1-21);

the large objective lens group (3) is used for providing illumination for the working area (4), and light emitted by the optical assemblies of the plurality of groups reaches the working area (4) through the large objective lens group (3).

2. The optical system of an operating microscope of claim 1, wherein: the number of the multiple groups of optical components is two, the two groups of optical components are respectively a first optical component (1) and a second optical component (2), the first optical component (1) comprises a first light source (101), a dimming component (1-2), a first condenser group (102), a first diaphragm (103), a first reflector (104) and a first projection lens (105), light rays emitted by the first light source (101) sequentially pass through the dimming component (1-2), the first condenser group (102), the first diaphragm (103), the first reflector (104) and the first projection lens (105), the second optical component (2) comprises a second light source (201), a dimming component (1-2), a second condenser group (202), a second diaphragm (203), a second reflector (204) and a second projection lens (205), the light emitted by the second light source (201) passes through the dimming component (1-2), the second condenser group (202), the second diaphragm (203), the second reflector (204) and the second projection lens (205) in sequence.

3. The optical system of a surgical microscope according to claim 2, characterized in that: the first shading disc (1-20) and the second shading disc (1-21) are coaxially arranged, and the central axes of the first shading disc (1-20) and the second shading disc (1-21) are not coincident with the optical axes of the first optical assembly (1) and the second optical assembly (2).

4. The optical system of an operating microscope of claim 1, wherein: the number of the light transmission areas is four, the areas of the four light transmission areas are equal, the apertures of the light transmission holes (1-200) in the same light transmission area are equal, and the apertures of the light transmission holes (1-200) in different light transmission areas are gradually increased along the clockwise direction.

5. The optical system of an operating microscope of claim 4, wherein: the light transmission adjusting holes (1-210) are fan-shaped, the light transmission adjusting holes (1-210) are arranged in a mode of deviating from the centers of the second light shading discs (1-21), and the second light shading discs (1-21) are fixedly connected with the microscope body.

6. The optical system of a surgical microscope according to claim 2, characterized in that: the first light shading disc (1-20) and the second light shading disc (1-21) are made of light-tight materials.

7. The optical system of a surgical microscope according to claim 2, characterized in that: the optical axes of the first optical assembly (1) and the second optical assembly (2) are symmetrically distributed along the optical axis of the large objective lens group (3).

8. The optical system of a surgical microscope according to claim 2, characterized in that: the first light source (101) and the second light source (201) are any one of a xenon light source, a halogen light source and an LED light source.

9. The optical system of a surgical microscope according to claim 2, characterized in that: the distance of the first diaphragm (103) from the first projection mirror (105) is not equal to the distance of the second diaphragm (203) from the second projection mirror (205).