Threaded ring housing: This is the main component that holds the filter and washer together. It has a threaded section that allows it to be screwed onto a lens or other device.
Filter: This is the component that filters out unwanted wavelengths of light. It is typically made of a thin piece of glass or other material.
Washer: This is a circular gasket that seals the gap between the filter and the threaded ring housing. It helps to prevent leaks and improve the optical performance of the filter.
