Object lens of microscope
A microscope objective lens and lens group technology, applied in the microscope field, can solve the problems of excessive thickness and refractive index changes, affecting the quality of microscope imaging, etc., and achieve the effect of clear imaging
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0055] Example 1
[0056] See figure 1 , The microscope objective lens of embodiment 1 of the present invention includes, from the object side, a first lens L1 with positive refractive power, a first lens group G1 with positive refractive power, a second lens group G5 with positive refractive power, and a second lens group G5 with positive refractive power. The third lens group G2 with negative power, the fourth lens group G3 with negative power, and the fifth lens group G4 with negative power. The first lens group G1 is used to move along the optical axis of the objective lens to change the focal length of the objective lens.
[0057] In use, the specimen is set on the object side S1 of medium O (such as a cover glass), and the light reflected by the specimen is projected on the image side S2 of medium O, and then enters the microscope objective lens and the tube lens set on the mirror side of the microscope object enters the observer’s Eyes or image sensors (not shown). When me...
Example Embodiment
[0103] Example 2
[0104] Please refer Image 6 The microscope objective of Example 2 of the present invention is basically the same as the microscope objective of Example 1. However, the fifth lens group G4 of the microscope objective of Example 2 includes a fourth lens L4, and correspondingly, the surface number of the microscope objective is changed.
[0105] In addition, in Example 2, the microscope objective meets the conditions in the following table:
[0106] table 3
[0107] Surface
[0108] In addition, the microscope objective also satisfies:
[0109] Table 4
[0110] D1
[0111] Among them, fobj=1; NA=0.45. 〡fL1 / fobj〡=2.1; 〡fG1 / fobj〡=10.2; 〡fG2 / fobj=16.6 and 〡fG5 / fobj=2.6.
[0112] Figure 7 This is the 0-field lateral aberration diagram of the microscope objective lens of Example 2, where the abscissa PY and PX represent the entrance pupil, and the ordinate EY and EX represent the lateral aberration (Y represents the meridian direction and X represents the sagittal dire...
Example Embodiment
[0116] Example 3
[0117] Please refer Picture 11 The microscope objective of Example 3 of the present invention is basically the same as the microscope objective of Example 1. However, the second lens group G5 of the microscope objective of Example 3 includes the second lens L2, and correspondingly, the surface number of the microscope objective is changed.
[0118] In addition, in Example 3, the microscope objective meets the conditions in the following table:
[0119] table 5
[0120] Surface
[0121] In addition, the microscope objective also satisfies:
[0122] Table 6
[0123] D1
[0124] Among them, fobj=1; NA=0.45. 〡fL1 / fobj〡=2.2; 〡fG1 / fobj〡=13.4; 〡fG2 / fobj=11 and 〡fG5 / fobj=3.8.
[0125] Picture 12 This is the 0-field lateral aberration diagram of the microscope objective lens of Example 3. The abscissa PY and PX represent the entrance pupil, and the ordinate EY and EX represent the lateral aberration (Y represents the meridian direction and X represents the sagittal dire...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2023 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap