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Wet type dark field condenser

A condenser and dark field technology, applied in optics, microscopes, optical components, etc., can solve the problems of uneven light irradiation and large actual deviation, and achieve the effects of high light utilization, low light energy loss, and high resolution

Inactive Publication Date: 2015-11-04
WUZHOU OKA OPTICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a wet dark field condenser to solve the problem that the light irradiation of the existing dark field condenser system is not uniform so that the observed material deviates greatly from the actual

Method used

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  • Wet type dark field condenser
  • Wet type dark field condenser

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Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with accompanying drawing embodiment:

[0017] Such as figure 1 and figure 2 The wet dark field condenser shown includes a wet mirror bonding group 1 formed by adding cedar oil for microscopy to the contact surface of two convex lenses and glued together. The wet mirror bonding group 1 is mounted on the first mirror holder through the first pressure ring 2 3 at one end, the first mirror base 3 is provided with a threaded central hole, and the wet mirror gluing group 1 is installed on the threaded central hole of the first mirror base 3 through the first pressing ring 2 provided with external threads; the first mirror base 3 is connected with an adapter Cylinder 4, the connecting tube 4 has the first mirror base connecting part on the upper part and the receiving tube part on the lower part, the first mirror base connecting part is installed in the threaded central hole of the first mirror b...

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Abstract

The invention discloses a wet type dark field condenser, which relates to microscope making technology field. The wet type dark field condenser comprises a dark field wet mirror (1); the dark field wet 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 (5) through a carrying cylinder part at the lower 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 (5) through a second clamping ring (8); the second mirror seat (5) 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 [0001] The invention relates to the technical field of microscope manufacture, in particular to a wet dark-field condenser used for a microscope. Background technique [0002] Dark-field microscopes are designed using the principle of the Tyndall phenomenon in optics. Its structural feature is mainly to use a central light shield or dark-field condenser, so that the central light beam of the light source is blocked and cannot enter the objective lens through the specimen from bottom to top. . As a result, the light changes its path and irradiates obliquely on the observed specimen. The specimen is reflected or scattered when it encounters light, and the scattered light is thrown into the objective lens, so the entire field of view is dark. What is observed in the dark field is the diffracted light image of the inspected object, not the object itself, so only the existence and movement of the object can be seen, and the fine structure of the object cannot be ...

Claims

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Application Information

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IPC IPC(8): G02B21/10
Inventor 张景华
Owner WUZHOU OKA OPTICAL INSTR
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