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
CN104698581AActive Publication Date: 2015-06-10MOTIC CHINA GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MOTIC CHINA GRP CO LTD
Publication Date
2015-06-10

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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.
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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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