There are a number of uses to which an Optical notch filter can be put. By using different wavelengths, they have the property to alter the way an image is reflected. They can also split a single image into two and transmit them. Given the wide scope of jobs that these filters can perform, it is important to choose the right one for the type of application that you want to use them for.
Before picking one for yourself, here are a few terms that you need to know about.
Bandwidth: The Bandwidth has a lot to do with the range of the wavelength and denotes the spectrum through which light and energy shall pass. Since this happens through the filter, it is important to pick the right one.
Central wavelength: It is the mid point for different wavelengths which pass through the filter. Since it impacts the image which shall be transmitted, it should be chosen with care.
Blocking range: Before buying a filter, you must know what its blocking range is. It is described as the interval between a wavelength and denotes the spectral region around which the optical density is concentrated.
Optical density: It is used to measure the blocking specification of a filter. It impacts the level of energy that will be transmitted through a filter. It ranges between high and low among different filters.
Custom optical filters are used for a variety of purposes and fulfil a wide array of applications for use in the photography and medical world. Custom optical filters are designed to provide a number of uses across a huge array of fields. The type of filter chosen by you for your use will largely impact the kind of images that it is able to produce.