Optical filter, optical filter module and intense pulsed light treatment head

Abstract

The invention provides an optical filter, an optical filter module and an intense pulsed light treatment head. The optical filter is provided with a slit gap which divides the optical filter into an independent working area and an independent window area. The optical filter module comprises a plurality of layers of stacked optical filters, and the optical filters can be overlapped or staggered by sliding the optical filters; during working, the working area of the adaptive optical filter is located in an optical path, and the window areas of the other optical filters are located in the optical path. The intense pulse light treatment head comprises a treatment head shell, a pulse xenon lamp, a reflecting cover, the optical filter module and a light guide prism; and the optical filter at the lowest layer is in contact with the top surface of the light guide prism. According to the intense pulse light treatment head, when the optical filter needs to be switched, people move the window area of the previous state adaptive optical filter into the optical path and move the working area of the current state adaptive optical filter into the optical path, the optical filter does not need to be taken down, and the optical filter is convenient to switch; and the optical filter does not need to be taken down, so that the risk of optical filter loss is reduced.

Description

technical field [0001] The invention belongs to the field of optical technology, and in particular relates to an optical filter, an optical filter module and an intense pulsed light therapy head. Background technique [0002] Dry eye is the most common ocular surface disease in my country and the world. Intense Pulsed Light (IPL) Dry Eye Therapeutic Apparatus uses pulsed xenon lamp as the light source, and uses optical filters to screen the spectrum. Through the pulse circuit, a specific wavelength incoherent light pulse with high energy density is emitted. The light pulse has a good curative effect on the inflammation of meibomian glands, abnormal blood vessels, and demodex mites, and can effectively treat dry eye syndrome caused by meibomian gland dysfunction. [0003] attached figure 1 And attached figure 2 It is a typical optical path structure of an existing intense pulsed light treatment head (IPL treatment head), which includes a pulse xenon lamp (30) inside the ...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the technical problems existing in the prior art. The first purpose of the present invention is to provide a filter to solve the technical problem of inconvenient replacement of the filter in the prior art

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