Air jet duct structure for wiping off dust on surface of optical element

Abstract

The invention is an air vent guide pipe structure for eliminating dusts on the surface of an optical component, composed of a cylindrical component, where the cylindrical component is provided with a pipe cavity inside, one end of the pipe cavity is connected through a valve to a compressed air container, the front end of the cylindrical component is at least provided with three air vents, each of which is a cylindrical pipe in shape, the inner end of each air vent is connected with the pipe cavity and the outer end is made with an opening on the front end surface of the cylindrical component, the axle of each air vent forms an inclined angle of 45-5 deg. with that of the cylindrical component, and the extension lines of all the air vents intersect at the same point in the forward extension line of the axle of the cylindrical component. As an air flow passes through the air vents, its direction will be changed, and vented from the air vents, above three air flows gather at some point on the forward extension line of the axle of the cylindrical component so that this point obtains larger air flow pressure, therefore it can effectively eliminate hard dusts on the surface of an optical component arranged near this point.

Description

Technical field: [0001] The invention relates to a medical device, in particular to an optical component in a medical diagnostic instrument, in particular to a cleaning device for an optical component in a medical diagnostic instrument, in particular to an air jet conduit structure for removing dust on the surface of an optical component. Background technique: [0002] In the prior art, the optical components in the medical diagnostic instrument, such as lenses and reflective devices, are in contact with the air, so they will be contaminated with dust. At the same time, the internal components of the medical diagnostic instrument will generate more static electricity, making the attached static dust more It is easy to be stained on the optical components, so as to affect the imaging quality of medical diagnostic instruments. Usually, the dust removal of optical components is carried out by a blower, but the airflow pressure of the blower is weak enough to remove the firmly a...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the optical components in the medical diagnostic instrument, such as lenses and reflective devices, are in contact with the air, so they will be contaminated with dust. At the same time, the internal components of the medical diagnostic instrument will generate more static electricity, making the attached static dust more It is easy to be stained on the optical components, so as to affect the imaging quality of medical diagnostic instruments

Usually, the dust removal of optical components is carried out by a blower, but the airflow pressure of the blower is weak enough to remove the firmly adhered dust. Therefore, people use canned compressed air to remove the firmly adhered dust, but , after the compressed gas rushes out of the nozzle, it diverges forward, forming a conical path, and the air pressure acting on the surface of the optical component is greatly dispersed and weakened

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