Filter disk rotation mechanism for upper light source slit-lamp microscope

Abstract

The invention discloses a filter disk rotation mechanism for an upper light source slit-lamp microscope. In the mechanism, a horizontal rotation mechanism with a filter disk positioning identification disk is arranged on a lighting workbench casing under the filter disk; a 360-degree rotating bevel gear drive wheel is arranged at the front end of the rotation mechanism, and an identification disk knob is arranged at the tail end of the rotation mechanism; a 360-degree rotating bevel gear driven wheel is sleeved on a rotating shaft under the filter disk; and the drive wheel and the driven wheel are in rotary connection matching. By the rotation mechanism, 360-degree continuous rotation of the filter disk can be realized, and more filter pores can be set, so that the examination time of a doctor can be effectively saved, the detecting range can be increased, and the examination efficiency and accuracy can be improved.

Description

technical field [0001] The invention relates to a slit lamp microscope for ophthalmic examination, in particular to a rotating mechanism for a filter plate of an upper light source slit lamp microscope. Background technique [0002] A slit lamp, as the name suggests, is a light that shines through a slit to illuminate the eye. Because it is a narrow slit light source, it is called "light knife". This "light knife" is irradiated on the eyes to form an optical section, and the health status of each part of the eyes can be observed. The principle is to use the "Tyndall phenomenon" of the British physicist Tyndall. The Tyndall phenomenon is: when a beam of light passes through the colloid, a bright "path" in the colloid can be observed from the vertical direction of the incident light. This phenomenon is called the Tyndall phenomenon, also known as the Tyndall effect. In 1911, the Swedish ophthalmologist Gullstrand invented the famous ophthalmic examination instrument "Slit l...

AI Technical Summary

Problems solved by technology

This structure and mode of operation have brought great inconvenience to the doctor. For one thing, the requirements for eye examination are high, and the patient should not undergo irradiation examination for a long time. If children are encountered, it is difficult to Concentrate on the long-term examination; the second is that the doctor repeatedly turns the filter disc to adjust the light in a dark room, which consumes the doctor's energy improperly and easily leads to errors in examination and judgment

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