One of the main misconceptions of customers when buying binocular is that every brand has different light gathering capabilities. They mistakenly think that this feature of binoculars has something to do with the brand. But the truth is, all 42-mm objective lenses have the same light gathering capacity. The brightness difference between several binoculars is their ability to gather the light from the objective back to the eyes. Hence, if the quality of the prism and the lenses is the same, the only thing that would make them distinct from each other is the coatings. Generally, optical coatings have been very helpful in wide variety of areas and fields such as optical coatings for defense applications. But it is commonly used in making eyeglasses, films and other things. Wih the help of optical coating, there are several benefits that people in the field of the production of these industries. But as a customer, it is also important that you know how to choose the right optical coating for you. So to help you out, this article will go through some of the essential tips that you must consider in choosing the right optical coating. These tips will help you have the right and best component.
UV and IR Protection
Generally, our eyes can focus both near and visible IR light onto your retina. But the problem is, our eyes do not have IR receptors but only visible receptors. This means that it might cause some pain in your eyes when an intense visible light hits the receptors. But this doesn’t happen with IR. Basically, IR allows you not to realize that your eye was being burned. This is the reason why astronauts use IR protection. In addition, around 60% of UV Light is being transmitted through the gold. But the good news is, a polycarbonate plastic visor has great transmittance that reflects and absorbs almost all UV.
When choosing optical coating, experts suggest to go for the gold. Surely, our skin will be damaged if it is overly exposed to the sunlight. This is also true when it comes to our eyes. Too much exposure of our eyes to the sun may damage them In the long run. Hence, gold coating is a thin layer of gold applied to a polycarb0nate shield. Gold coating has the ability to reflect light. It has also an excellent corrosion resistance and reliability. So you will never go wrong with gold coating.
Applications of optical coating
Some manufactures apply optical coating with the use of vacuum deposition technology. Aside from gold which is very effective in corrosion resistance and reflectivity, solver is also a good option. It has an excellent reflectivity from the visible to the spectrum of the infrared. It is also recommended in preventing oxidation. In addition, if you are looking for a material that is suitable for applications in the visible and near infrared spectrums, standard aluminum might be another choice that you want to consider. It is one of those metals that retains reflectance in a finely powdered form that makes it an essential element for mirror coatings.
Furthermore, in the field of optical films, when choosing optical coatings, there are several factors that you have to consider. Some of these factors include the application, type of coating, wavelengths involved, size of the parts and even the environmental conditions. Application refers to the field or area where you need to apply or use optical coating. There is no basic coating for all. In determining application, you also have to consider your budget. Next is the type of coating. You must understand that coating technology varies. Depending on your project, you should always have to go for a custom or standard design. You should also consider the involved wavelengths. Basically, there are three types namely infrared, visible and ultraviolet. You should also check the size of the parts of your system. This is necessary so that your thin-film coating provider can create and use the most efficient method of production. Lastly, you should also consider the environmental conditions. It is important to consider the operating temperature of the system in order to know whether the coating will be able to withstand the work.