Transmission illumination system for optical microscope and optical microscope using same

Abstract

The related transmission lighting system for optical microscope comprises: the light source in a box, a concave reflector and an incidence taper optical fiber on sides of the light source; all three parts form the system for generating light source and focusing light. Wherein, the small end face connects with incidence taper fiber large end face by optical fiber, the incidence taper fiber, optical fiber and emergence taper fiber form the optical energy transmission system. Besides, the incidence fiber is fixed on the source box by a lower fastening screw, screw and fiber holder; the emergence fiber is fixed on the fiber fixed disk on the microscope stage by an upper fastening screw.

Description

technical field [0001] The invention relates to an optical microscope illumination technology, specifically an optical microscope transmission illumination system using a tapered optical fiber to transmit light energy and an optical microscope using it. The international patent classification number is intended to be Int.Cl.G02B 21 / 00 ( 2006.01). Background technique [0002] Traditional optical microscope transmitted illumination can be divided into two ways: critical illumination and Kohler illumination. Both lighting methods use lenses as light concentrating devices. The main disadvantage of critical lighting is the non-uniform illumination of the plane of the object. Although Kohler lighting solves this problem, there are problems such as aberration, complex structure, and heat conduction due to the use of lenses for condensing light. When designing this lighting system, the problem of optical aberration must be eliminated. Therefore, complex lens combinations are req...

AI Technical Summary

Problems solved by technology

This system is only suitable for ordinary light source lighting, and cannot be used for microscope lighting systems, and does not have the function of light source focusing; the patent document "An Optical Microscope Concentrating Illumination System (87202450)" discloses an optical microscope concentrating lighting system, It can realize incoherent light illumination and eliminate the diffraction phenomenon of tiny objects caused by coherent light or partially coherent light illumination. In the system, the diffuse transmission plate is added to overcome the diffraction phenomenon of tiny objects caused by coherent light or partially coherent light illumination, but the illumination method still uses the traditional lens method, and the structure is complicated. Due to the addition of the diffuse transmission plate, Its light transmittance is lower than traditional microscope illumination system; The optical microscope reflected light illumination system is based on the traditional optical microscope illumination, adding a telescopic system composed of a Smith beam splitter

This is an epi-illumination method, which does not get rid of the traditional lens light-gathering structure, nor can it realize arbitrary turning of transmitted illumination and light path, and at the same time, the structure is complex and expensive

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