CN105022150A - Dry type dark field condenser - Google Patents
Dry type dark field condenser Download PDFInfo
- Publication number
- CN105022150A CN105022150A CN201510462633.9A CN201510462633A CN105022150A CN 105022150 A CN105022150 A CN 105022150A CN 201510462633 A CN201510462633 A CN 201510462633A CN 105022150 A CN105022150 A CN 105022150A
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- China
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- dark field
- microscope base
- extend neck
- mirror
- dry type
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Abstract
The invention discloses a dry type dark field condenser, which relates to microscope making technology field. The dry type dark field condenser comprises a dark field dry mirror (1); the dark field dry mirror (1) is installed on one end of a first mirror seat (3) through a first clamping ring (2); the first mirror seat (3) is connected to a carrying cylinder (4); the carrying cylinder (4) is inserted in the central hole of a second mirror seat (8) through a carrying cylinder part; the carrying cylinder part is set in an adjustable ring (7) through the screw thread at the front part; the adjustable ring (7) is set in the second mirror seat (8) through a second clamping ring (8); the second mirror seat (8) is provided with multiple adjusting screws (9) that abut to the outer rim of the adjustable ring (7) penetrating the sidewall and at least one spring coil (6) that abuts to the outer rim of the adjustable ring (7). According to the invention, the problem of large deviation between the observed substance and reality because of nonuniform light struck in existing dark field condenser system is solved; and the composition is simple and the effect is better.
Description
Technical field
The present invention relates to microscope manufacturing technology field, especially a kind of for microscopical dry type dark field condenser.
Background technology
Dark field microscope is the principle design utilizing optically Tyndall phenomenon, and its design feature mainly uses central shadow shield or dark field condenser, the central beam of light source is stopped, from bottom to top can not enter object lens by sample.Thus make light change approach, be radiated at obliquely on the sample of observation, sample is met light and reflection or scattering is occurred, and the light of scattering drops in object lens, and thus the whole visual field is dark.Viewed in details in a play not acted out on stage, but told through dialogues is the diffracted light image of tested object, of not object itself, so can only see existence and the motion of object, can not differentiate the fine structure of object.But when tested object is heterogeneous body, and be greater than 1/2 wavelength, then diffracted ray at different levels enters object lens, to a certain extent the structure of observable object simultaneously.Though general dark-field microscope does not see the fine structure of object, but the existence of the particulate of distinguishable more than 0.004um and motion, this is the characteristic that simple microscope (maximum resolving power is 0.2um) does not have, can in order to observe the motion etc. of particulate in the structure of living cells and cell.And current existing details in a play not acted out on stage, but told through dialogues condenser system exists complex structure, optical energy loss makes utilization ratio low more, illumination penetrate uneven make to observe material and the problem such as actual deviation is larger.
Summary of the invention
The invention provides a kind of dry type dark field condenser, with solve the illumination of existing details in a play not acted out on stage, but told through dialogues condenser system penetrate uneven make to observe material and the large problem of actual deviation.
In order to solve the problem, the technical solution adopted in the present invention is: this dry type dark field condenser, include the dry mirror of details in a play not acted out on stage, but told through dialogues, it is characterized in that: the dry mirror of described details in a play not acted out on stage, but told through dialogues is contained in the first microscope base (3) one end by the first trim ring, described first microscope base is connected with extend neck, described extend neck is inserted in the center pit of the second microscope base by the extend neck portion of bottom, described extend neck portion is contained in regulating ring by the thread segment being located at front end, described regulating ring is contained in described second microscope base by the second trim ring, described second microscope base is provided with multiple set screw of abutting against through sidewall and described regulating ring outer rim and is at least provided with a turn abutted against with described regulating ring outer rim.
In technique scheme, technical scheme can also be more specifically: described set screw is two, and described set screw is one; It is upper that two described set screw and described turn are circularly and evenly distributed at described second microscope base.
Further: the described extend neck portion of described extend neck is clearance fit with coordinating of described second microscope base center pit.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
1, illumination of the present invention is penetrated more even, the material observed and actual deviation little: optically focused is carried out in the radial displacement that can be controlled the dry mirror 1 of details in a play not acted out on stage, but told through dialogues by set screw 9, because the extend neck portion of extend neck is clearance fit with the coordinating of center pit of the second microscope base 5, solve the illumination of existing details in a play not acted out on stage, but told through dialogues condenser system penetrate uneven make to observe material and the large problem of actual deviation.
2, sharpness of the present invention is high, and optical energy loss is few, and light utilization efficiency is high.
3, resolution of the present invention is high, and numerical aperture Na is 0.77 ~ 0.91.
4, structure of the present invention is simple, and what reach is effective, and the operation provided cost savings, improves production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the K direction view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
Dry type dark field condenser as depicted in figs. 1 and 2 includes the dry mirror 1 of details in a play not acted out on stage, but told through dialogues, the dry mirror 1 of details in a play not acted out on stage, but told through dialogues is contained in first microscope base 3 one end by the first trim ring 2, first microscope base 3 is provided with threaded central aperture, and the dry mirror 1 of details in a play not acted out on stage, but told through dialogues is contained in by being provided with external thread first trim ring 2 in the threaded central aperture of the first microscope base 3; First microscope base 3 is connected with extend neck 4, and extend neck 4 has the first microscope base connecting portion being located at top and the extend neck portion being located at bottom, and the first microscope base connecting portion is contained in the threaded central aperture of the first microscope base 3 by screw thread; Extend neck 4 is inserted in the center pit of the second microscope base 5 by the extend neck portion of bottom, and the extend neck portion of extend neck is clearance fit with coordinating of the center pit of the second microscope base 5, is provided with the positioning table of annular in the lower end of the second microscope base 5 center pit; The extend neck portion of extend neck 4 is contained in by the thread segment being located at front end and establishes in female regulating ring 7, and regulating ring 7 is fixed on the positioning table of the second microscope base 5 by the second trim ring 8; The present embodiment is equipped with two set screw 9 and a turn 6 abutted against with regulating ring 7 outer rim that abut against through sidewall and regulating ring 7 outer rim on the second microscope base 5, and one end of turn 6 is contained in the turn mounting hole of the second microscope base 5 circular orientation platform; It is upper that two set screw 9 and turn 6 are circularly and evenly distributed at the second microscope base 5, and the angle between two set screw 9, between set screw 9 and turn 6 is 120 degree.
During work, optically focused is carried out in the radial displacement that can be controlled the dry mirror 1 of details in a play not acted out on stage, but told through dialogues by set screw 9, because the extend neck portion of extend neck is clearance fit with the coordinating of center pit of the second microscope base 5, solve the illumination of existing details in a play not acted out on stage, but told through dialogues condenser system penetrate uneven make to observe material and the large problem of actual deviation.
This dry type dark field condenser height is 43.6mm, numerical aperture Na is 0.77 ~ 0.91, can reach optimum efficiency when focal length is 7.76.
Claims (3)
1. a dry type dark field condenser, include the dry mirror of details in a play not acted out on stage, but told through dialogues (1), it is characterized in that: the dry mirror of described details in a play not acted out on stage, but told through dialogues (1) is contained in the first microscope base (3) one end by the first trim ring (2), described first microscope base (3) is connected with extend neck (4), described extend neck (4) is inserted in the center pit of the second microscope base (5) by the extend neck portion of bottom, described extend neck portion is contained in regulating ring (7) by the thread segment being located at front end, described regulating ring (7) is contained in described second microscope base (5) by the second trim ring (8), described second microscope base (5) is provided with multiple set screw (9) of abutting against through sidewall and described regulating ring (7) outer rim and is at least provided with a turn (6) abutted against with described regulating ring (7) outer rim.
2. dry type dark field condenser according to claim 1, is characterized in that: described set screw (9) is two, and described set screw (9) is one; It is upper that two described set screw (9) and described turn (6) are circularly and evenly distributed described second microscope base (5).
3. dry type dark field condenser according to claim 1 and 2, is characterized in that: the described extend neck portion of described extend neck is clearance fit with described coordinating of second microscope base (5) center pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510462633.9A CN105022150A (en) | 2015-07-31 | 2015-07-31 | Dry type dark field condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510462633.9A CN105022150A (en) | 2015-07-31 | 2015-07-31 | Dry type dark field condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105022150A true CN105022150A (en) | 2015-11-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510462633.9A Pending CN105022150A (en) | 2015-07-31 | 2015-07-31 | Dry type dark field condenser |
Country Status (1)
| Country | Link |
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| CN (1) | CN105022150A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109254378A (en) * | 2018-11-19 | 2019-01-22 | 长春长光智欧科技有限公司 | A kind of high-precision lens orientation device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2059744U (en) * | 1989-10-31 | 1990-07-25 | 梧州市光学仪器厂 | Objective structure of microscope with adjustable axial and aplanatic foci distance |
| CN101382648A (en) * | 2007-09-06 | 2009-03-11 | 株式会社涉谷光学 | Darkfield objective device and darkfield lighting device for above device |
| CN203882007U (en) * | 2014-05-28 | 2014-10-15 | 南京江南永新光学有限公司 | Dark field objective lens used for metallographical microscope |
| CN204203618U (en) * | 2014-12-02 | 2015-03-11 | 中视迪威激光显示技术有限公司 | There are three look laser coupled devices of adjust structure |
-
2015
- 2015-07-31 CN CN201510462633.9A patent/CN105022150A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2059744U (en) * | 1989-10-31 | 1990-07-25 | 梧州市光学仪器厂 | Objective structure of microscope with adjustable axial and aplanatic foci distance |
| CN101382648A (en) * | 2007-09-06 | 2009-03-11 | 株式会社涉谷光学 | Darkfield objective device and darkfield lighting device for above device |
| CN203882007U (en) * | 2014-05-28 | 2014-10-15 | 南京江南永新光学有限公司 | Dark field objective lens used for metallographical microscope |
| CN204203618U (en) * | 2014-12-02 | 2015-03-11 | 中视迪威激光显示技术有限公司 | There are three look laser coupled devices of adjust structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109254378A (en) * | 2018-11-19 | 2019-01-22 | 长春长光智欧科技有限公司 | A kind of high-precision lens orientation device |
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Application publication date: 20151104 |