Lighting device, stereoscopic microscope and lighting method for stereoscopic microscope

A technology for stereo microscopes and lighting devices, applied in the field of stereo microscopes, can solve problems such as increased production costs, high base, and complexity, and achieve the effects of preventing damage and improving dark field contrast

Active Publication Date: 2015-06-10
MOTIC CHINA GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The solution provided by the patent is too complicated, resulting in a high base, which also increases the production cost

Method used

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  • Lighting device, stereoscopic microscope and lighting method for stereoscopic microscope
  • Lighting device, stereoscopic microscope and lighting method for stereoscopic microscope
  • Lighting device, stereoscopic microscope and lighting method for stereoscopic microscope

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Embodiment Construction

[0033]First of all, the present invention proposes an illumination method for a stereomicroscope, which is to set the observed object under the observation point (usually an optical observation system composed of an eyepiece, a zoom body group, a focusing mechanism, etc., but not limited thereto). The specimen under observation is illuminated by a light source. Place the light source below the specimen being observed, and make sure that the light source is outside the area of ​​imageable light at the observation point. When performing dark-field illumination, a shield is placed between the light source and the specimen, and the shield only allows the scattered light of the light source within the area where the light can be imaged to pass through; when performing bright-field illumination, between the light source and the specimen A light-transmitter is placed between the specimens, which allows the passage of all light from the light source both within and outside the region ...

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Abstract

The invention relates to the stereoscopic microscope field, provides a lighting method for a stereoscopic microscope; a sample to be observed is arranged below an observation point, the observed sample is lightened by the light source. The light source is formed below the observed sample, and the light source is located outside the imaging light ray region of the observation point; for dark field illumination, a baffle is located between the light source and the sample, partial scattered ray of the light source in the imaging light ray region can pass through the baffle; for light field illumination, a light through piece is located between the light source and the sample, and all light rays in and out the imaging light ray region can pass through the light through piece. In addition, according to the lighting method, a lighting device and a stereoscopic microscope are provided. The lighting device is used for offering the light field illumination and dark field illumination for the stereoscopic microscope, the continuous change of the observation contrast can be achieved and the method and the method are suitable for observing various samples.

Description

technical field [0001] The invention relates to a stereo microscope, in particular to the improvement of its illuminating device. Background technique [0002] At present, the types of illumination methods for microscopes can be divided into two categories: "transmissive illumination" and "episcopic illumination". The former is suitable for transparent or translucent specimens, while the latter is suitable for non-transparent specimens. [0003] Dark field microscopy is based on the principle of Tyndall optical effect. When a beam of light passes through the colloid, a bright "path" can be observed in the colloid from the vertical direction of the incident light. This phenomenon is called the Tyndall phenomenon, also known as the Tyndall effect. [0004] In Patent Laid-Open No. 4-318804, a through-illumination device for a stereomicroscope that can perform oblique illumination is described. The light beam emitted from the light source is irradiated on the reflector through...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B21/10G02B21/12
CPCG02B21/125
Inventor 夏波江育英许登阳林茂英
Owner MOTIC CHINA GRP CO LTD
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