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microscope objective

A microscope objective lens and a technology for objective lens, applied in the field of microscope objective lens, can solve the problems such as difficulty in increasing the output, difficult processing of 100x oil lens, etc., achieve moderate cost, meet mass production requirements, and improve imaging quality.

Active Publication Date: 2015-12-09
NINGBO SUNNY INSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a novel microscope objective lens, which solves the problems that the processing of 100x oil lens is relatively difficult and the output is difficult to improve. Its technical scheme is as follows:

Method used

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Embodiment 2

[0045] The structural representation of embodiment 2 is as figure 1 As shown, the microscope objective lens involved in the present invention consists of 11 lenses, including 4 doublet lens groups and 3 single plates. Starting from the object side, there is a super hemispherical lens L1 with positive power, a positive meniscus lens L2 with positive power, a biconvex lens L3 with positive power, two doublet lens groups G1 with positive power, and a negative The doublet lens group G2 with a refractive power, the doublet lens group G3 with a negative refractive power, and the doublet lens group G4 with a negative refractive power. Among them, lens L1 is a hyperhemisphere; lens L2 is a positive meniscus lens, and the two centers of curvature are located on one side of the object space; lens L9 is a biconcave negative lens, the center of curvature of the small spherical surface is located on the side of the image space, and the center of curvature of the large spherical surface is ...

Embodiment 3

[0049] The structural representation of embodiment 3 is also as figure 1 As shown, the microscope objective lens involved in the present invention consists of 11 lenses, including 4 doublet lens groups and 3 single plates. Starting from the object side, there is a super hemispherical lens L1 with positive power, a positive meniscus lens L2 with positive power, a biconvex lens L3 with positive power, two doublet lens groups G1 with positive power, and a negative The doublet lens group G2 with a refractive power, the doublet lens group G3 with a negative refractive power, and the doublet lens group G4 with a negative refractive power. Among them, lens L1 is a hyperhemisphere; lens L2 is a positive meniscus lens, and the two centers of curvature are located on one side of the object space; lens L9 is a biconcave negative lens, the center of curvature of the small spherical surface is located on the side of the image space, and the center of curvature of the large spherical surfac...

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Abstract

The invention relates to a microscope objective lens which is composed of eleven lens bodies. The microscope objective lens comprises four double-bonding-lens sets and three single pieces. The microscope objective lens is provided with the hyper-hemispherical lens body with positive focal power, the positive meniscus lens body with the positive focal power, the biconvex lens body with the positive focal power, the two double-bonding-lens sets with the positive focal power, the first double-bonding-lens set with the negative focal power, the second double-bonding-lens set with the negative focal power, and the third double-bonding-lens set with the negative focal power starting from the object space. The objective lens is moderate in cost, reasonable in process, excellent in imaging quality and capable of meeting the requirement for mass production.

Description

technical field [0001] The invention relates to optical devices, in particular to a microscope objective lens. Background technique [0002] At present, the microscope is the most common tool for human beings to understand the microscopic world. In order to better understand the smaller biological and organizational structures, it is necessary to use a microscope objective lens with a large magnification and a large numerical aperture. The optical microscope uses air as the medium, and the maximum numerical aperture can only be close to 1 theoretically. Therefore, in order to increase the resolution and increase the numerical aperture, the medium can be replaced with oil with a refractive index of about 1.5, so that the lens closest to the object side uses a super For a hemisphere, the numerical aperture can be around 1.3. Contents of the invention [0003] The invention provides a novel microscope objective lens, which solves the problems that the processing of 100x oil ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B21/02
Inventor 李伸朋
Owner NINGBO SUNNY INSTR