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Folding hinge binocular operation microscope optical system

A technology of surgical microscope and folding hinge, which is applied in the field of optical system of folding hinge binocular surgical microscope, can solve the problems of not providing the realization method of variable power optical system, and achieve the effects of convenient observation, prolonging operation time, and increasing fluorescence function

Inactive Publication Date: 2020-11-06
合肥登特菲医疗设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the prior art only provides a concept of variable magnification, and does not provide a specific implementation of the variable magnification optical system

Method used

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  • Folding hinge binocular operation microscope optical system
  • Folding hinge binocular operation microscope optical system
  • Folding hinge binocular operation microscope optical system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Table 1 is the optical design parameter table of each lens used in Embodiment 1 of the present invention, as shown in Table 1,

[0046] Table 1

[0047]

[0048]

[0049] As shown in Table 1, the thickness interval of No. 4 can be adjusted according to the working distance, and the adjustment range is 1.5-21mm. The thickness of No. 14 is adjusted according to the zoom ratio, and the adjustment range is 1.3-43mm. The thickness of No. 18 is adjusted according to the zoom ratio. Adjust, the adjustment range is 2-25.8mm, the thickness of serial number 20 is adjusted according to the zoom ratio, and the adjustment range is 1.5-27mm.

[0050] It should be emphasized that according to the order of light reflected by the object in the lens group, in Table 1, No. 1 is the thickness of the air layer between the double-concave lens, a type of cemented lens, and the object, and the distance from the double-concave lens to the object. No. 2 is the parameters of the biconcave le...

Embodiment 2

[0062] Table 2 is the technical performance table of the optical system provided by the embodiment of the present invention, as shown in Table 2,

[0063] Table 2

[0064] Main Performance Items Design Parameters working distance 200-400mm Field of view diameter range 11.2-120mm Total optical magnification (12.5X eyepiece) 1.87X-20X Zoom ratio 6X(0.4X-2.4X)

[0065] Table 3 is the optical design parameter table of each lens used in Embodiment 2 of the present invention, as shown in Table 3,

[0066] table 3

[0067]

[0068]

[0069]

[0070] It should be noted that the mirror type in Embodiment 2 of the present invention is exactly the same as that in Embodiment 1, and the difference lies only in specific optical parameters. Therefore, in Embodiment 2, the object side surfaces of each lens and the arrangement of the lenses are not described in detail here.

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Abstract

The invention discloses a folding hinge binocular operation microscope optical system, and mainly relates to the technical field of microscope optical systems. The system comprises an eyepiece lens group, a pitching adjusting lens group, a zoom lens group and an objective lens group which are sequentially arranged along an optical path. The pitching adjusting lens group is arranged between the eyepiece lens group and the zoom lens group. The eyepiece lens group is used for human eye imaging. The pitching adjusting lens group comprises a right-angle prism I, an eye objective lens, a roof prismI, a right-angle prism II and a roof prism II which are sequentially arranged along a light path. The zoom lens group comprises a rear zoom group, a compensation lens group, a zoom group and a front zoom group which are arranged in sequence. The objective lens group is used for collecting an image of an object. According to the embodiment of the invention, the requirements of different working distances can be met, the prolonged operation time caused by replacing the large objective lens is reduced, and doctors can conveniently observe dental plaque and decayed teeth.

Description

technical field [0001] The invention relates to the technical field of microscope optical systems, in particular to a folding hinge binocular operating microscope optical system. Background technique [0002] During oral and dental surgery, it is necessary to observe the intricate structure of the patient's root canal, so a dental operating microscope is needed to help the doctor separate the root canal or remove the calcification; however, due to the calcification in the patient's oral cavity or the The size of the foreign matter varies widely, for example, from 500-0.1mm. Therefore, the microscope needs to have a strong zoom capability to adapt to foreign bodies of different sizes. [0003] In the prior art, the invention patent with the application number CN02260210.0 will be provided with the eyepiece tube of the eyepiece, which is connected at an angle of 45 degrees with the half-pentagonal prism seat, which is vertically connected with the Prue prism seat, and the half...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B21/00G02B21/02G02B21/08G02B17/04G02B5/04
CPCG02B5/04G02B17/04G02B21/0012G02B21/025G02B21/08
Inventor 张宽
Owner 合肥登特菲医疗设备有限公司
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