Fluorescent module and fluorescent lighting device

Abstract

The invention provides a fluorescent module which is high in positioning accuracy and great in fluorescent directivity. The fluorescent module comprises a support, an excitation light generation part and a main light path. The excitation light generation part comprises a light source, a lens and an excitation light filter. The main light path comprises a dichroscope and a fluorescent filter. The support comprises a primary support and a secondary support. The secondary support is provided with a V-shaped groove. The primary support is provided with V-shaped protrusion which is corresponding to the V-shaped groove. The dichroscope is arranged on one side surface of the V-shaped groove or the V-shaped protrusion. The excitation light generation part and the fluorescent filter are respectively arranged on the primary support and the secondary support. The invention also provides a fluorescent lighting device which is suitable for different microscopes, high in adaptability and convenient to use. The fluorescent lighting device comprises a shell which is composed of a base and a cover shell, a pivot which is fixed in the shell, a rotating disc which rotates relative to the pivot with the pivot acting as the axis, the fluorescent module which is arranged on the rotating disc, a dovetail base and an eye lens base. When the rotating disc rotates, the main light path of the fluorescent module can be in the position coaxial with the dovetail base and the eye lens base.

Description

technical field [0001] The technology relates to a fluorescence illuminator for a microscope and a fluorescence module therein. Background technique [0002] Currently, microscopes are equipped with a fluorescence module for fluorescence illumination. The fluorescent module includes a support, an excitation light generating part, and a main light path. [0003] The excitation light generating part includes a light source, a lens, and an excitation light filter arranged on a support; the main optical path includes a dichroic mirror and a fluorescence filter arranged on a support; the dichroic mirror , while forming an angle of 45 degrees with the optical axis of the main optical path, it also forms an angle of 45 degrees with the optical axis of the excitation light generated by the excitation light generating part, so that the optical axis of the main optical path is orthogonal to the optical axis of the excitation light , the dichroic mirror reflects the excitation light ...

AI Technical Summary

Problems solved by technology

[0005] The main problems of the existing fluorescent modules are: 1, the dichroic mirror is difficult to be positioned accurately on the support

Because the support is a whole, the positioning and installation structure of the dichroic mirror on the support is complicated, and if a subtle point is out of tolerance, the dichroic mirror cannot be positioned accurately

And once it is installed, the position of the dichroic mirror is basically determined and it is difficult to adjust

This requires high precision requirements for the installation structure of the dichroic mirror, high manufacturing costs, and difficult installation

However, due to the need for artificial installation, even if the precision of each component is high, it is still difficult to ensure the position accuracy of the dichroic mirror

2. Due to the low positioning accuracy of the dichroic mirror, it is impossible to ensure that the dichroic mirror is at a 45-degree angle to the optical axis of the main optical path and also at a 45-degree angle to the optical axis of the excitation light. The optical axis of the excitation light cannot be orthogonal, resulting in poor direction of fluorescence and blurred imaging

3. After the fluorescence module is installed on the microscope, it is troublesome to replace it

However, the heat generated by the LED lamp is large, the temperature rises, the light decays seriously, and the life is short

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