Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Microscope objective lens

A technology of microscope objective lens and lens group, applied in the field of microscope, can solve the problems of high scattering, high noise, insufficient energy, etc.

Pending Publication Date: 2022-02-08
NINGBO SUNNY INSTR
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the biological liquid in which biological samples and tissues are located has a high scattering of light, which leads to problems such as insufficient energy and high noise in observation, and the low signal-to-noise ratio cannot observe the true shape characteristics of the sample.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Microscope objective lens
  • Microscope objective lens
  • Microscope objective lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] refer to figure 1 , along the direction of the optical axis from the object side to the image side, the microscope objective lens of this embodiment sequentially includes a first lens group T1, a second lens group T2 and a third lens group T3. It is mainly composed of 7 lens groups, including 14 lenses in total. In this embodiment, the first lens group T1 sequentially includes a first lens group G1 and a second lens group. Wherein, the first lens group G1 is a plano-convex lens with positive refractive power, which is a cemented lens group formed by cementing the first lens L1 and the second lens L2. Wherein, the first lens L1 close to the object side is a plano-convex lens, and the second lens L2 far away from the object side is a thick meniscus lens. The second lens group is the third lens L3 of the double-convex lens. The first lens group T1 provides positive optical power.

[0059] The second lens group T2 sequentially includes a third lens group G2 , a fourth l...

Embodiment 2

[0076] refer to Image 6 , along the direction of the optical axis from the object side to the image side, the microscope objective lens of this embodiment sequentially includes a first lens group T1, a second lens group T2 and a third lens group T3. It is mainly composed of 8 lens groups, including 14 lenses in total. In this embodiment, the first lens group T1 sequentially includes a first lens group G1 , a second lens group and a third lens group. Wherein, the first lens group G1 is a plano-convex lens with positive refractive power, which is a cemented lens group formed by cementing the first lens L1 and the second lens L2. Wherein, the first lens L1 close to the object side is a plano-convex lens, and the second lens L2 far away from the object side is a thick meniscus hyper-hemispherical lens. The second lens group is a meniscus third lens L3 with positive refractive power, and its concave surface faces the object plane. The third lens group is a meniscus fourth lens ...

Embodiment 3

[0096] refer to Figure 11 , along the direction of the optical axis from the object side to the image side, the microscope objective lens of this embodiment sequentially includes a first lens group T1, a second lens group T2 and a third lens group T3. It is mainly composed of 8 lens groups, including 14 lenses in total. In this embodiment, the first lens group T1 sequentially includes a first lens group G1 , a second lens group and a third lens group. Wherein, the first lens group G1 is a plano-convex lens with positive refractive power, which is a cemented lens group formed by cementing the first lens L1 and the second lens L2. Wherein, the first lens L1 close to the object side is a plano-convex lens, and the second lens L2 far away from the object side is a thick meniscus lens. The second lens group is a meniscus third lens L3 with positive refractive power, and its concave surface faces the object plane. The third lens group is the fourth lens L4 with positive refracti...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a microscope objective lens which sequentially comprises a first lens group (T1) with positive focal power and a second lens group (T2) with positive focal power from an object side to an image side along an optical axis, and is characterized in that the microscope objective lens further comprises a third lens group (T3) with negative or positive focal power; the first lens group (T1) at least comprises one lens with positive focal power; the second lens group (T2) at least comprises a glued lens set; and the third lens group (T3) comprises a lens set with positive focal power and a lens set with negative focal power. The microscope objective lens has a long working distance, and adopts near-infrared band imaging to reduce damage to a sample and light scattering of the sample. The lenses are made of a low-autofluorescence material, the signal transmittance is improved, and noise is reduced. Meanwhile, thick sample observation is achieved through a lens set adjustable structure.

Description

technical field [0001] The invention relates to the field of microscope technology, in particular to a microscope objective lens. Background technique [0002] Due to the requirements of life science and industry for the observation of biological samples to be non-toxic and non-polluting, it will cause little damage to the samples. Moreover, when observing many biological samples, it is necessary to observe tissue features with a certain thickness, that is, the objective lens must have high resolution capability and a super large depth of focus to observe thick biological tissue features. In addition, the biological fluid in which biological samples and tissues are located has a high scattering of light, which leads to problems such as insufficient energy and large noise in observation, and the low signal-to-noise ratio cannot observe the true shape characteristics of the sample. Finally, the requirements for the working distance of the objective lens are also relatively hi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02B21/02G02B13/00G02B13/06G02B13/14
CPCG02B21/025G02B13/006G02B13/06G02B13/008
Inventor 张雷梦婷李伸朋崔健胡森虎
Owner NINGBO SUNNY INSTR
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com