Digital microscope objective lens with high magnification factor and large zoom ratio

A technology of digital microscope and magnification, which is applied in the field of microscopy, can solve the problems of microscope imaging difficulties, etc., and achieve the effect of simple structure, digitalization and clear imaging

Pending Publication Date: 2019-12-06
杭州图谱光电科技有限公司
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  • Claims
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AI Technical Summary

Problems solved by technology

[0007] The main advantage of the digital microscope is that the traditional optical microscope can only be used by one person, it is difficult to share the images of the microscope, and it is often necessary to use special equipment to take pictures of the images in the microscope

Method used

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  • Digital microscope objective lens with high magnification factor and large zoom ratio
  • Digital microscope objective lens with high magnification factor and large zoom ratio
  • Digital microscope objective lens with high magnification factor and large zoom ratio

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. The operating methods not indicated in the following examples are generally in accordance with conventional conditions, or in accordance with the conditions suggested by the manufacturer.

[0050] The high magnification and large zoom ratio digital microscope objective lens of this embodiment is as follows: figure 1 As shown, the direction from the object plane 1 to the image plane 6 includes: the object plane 1, the first lens group 2 with positive refractive power, the second lens group 3 with positive refractive power, and the lens group with negative refractive power The third lens group 4 , the fourth lens group 5 with negative refractive power, the protective glass 7 and the image s...

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Abstract

The invention discloses a digital microscope objective lens with high magnification factor and large zoom ratio. The digital microscope objective lens comprises a first lens group (2) with positive focal power, a second lens group (3) with positive focal power, a third lens group (4) with negative focal power and a fourth lens group (5) with negative focal power which are arranged between an object surface (1) and an image surface (6) in sequence; the first lens group (2) and the fourth lens group (5) are fixed groups; the second lens group (3) is a zoom group, and different magnification factors and continuous zooming of the magnification factors are realized by moving along an optical axis O; the third lens group (4) is a compensation group, and performs magnification compensation on magnification factor change by moving along the optical axis O. The magnification factor of the objective lens is as low as 4x to 6x times and as high as 32x to 48x times, and the zoom ratio is more thaneight times, so that the objective lens can be used for observing details of objects of different sizes, and overcomes the common defect that the magnification selection of a high-magnification microscope is limited at present.

Description

technical field [0001] The invention relates to the technical field of microscopes, in particular to a digital microscope objective lens with high magnification and large zoom ratio. Background technique [0002] A microscope is an optical device that magnifies tiny objects or tiny parts of objects at high magnifications for easy observation or detection. Continuous zoom microscope refers to a microscope whose magnification can be continuously changed within a certain range, which can more conveniently observe the microstructure of objects of different sizes. [0003] The current continuous zoom microscope is mainly a stereo microscope, and its zoom ratio can reach 10 times or more, but most of the magnifications are in the range of 0.5× to 7×, and the magnification is relatively low. [0004] Other types of microscopes such as biological or metallurgical microscopes rarely have zoom objectives. In order to achieve the observation needs of different details of the object, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B21/02G02B15/167
CPCG02B15/167G02B21/025
Inventor 余飞鸿刘锦琳
Owner 杭州图谱光电科技有限公司
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