We talked about the optical properties of acrylic in another write up; you can read more about it - click here
Therefore, if you are looking to increase the visibility into your acrylic vacuum chamber, you will need to go a step further and install a custom viewport. There are several reasons why you would want to install a viewport onto the wall of the acrylic vacuum chamber.
The first reason is that acrylic does not transmit UV light. Therefore if you require UV visibility or if your experiments or test require measure of UV light emissions, you will have to install a viewport to better control the optical transmission properties.
The second reason is that acrylic may capture or be opaque to other wavelengths. In some instances, if you are doing tests or research on solar cells for example, you will need to have a better transmitting material, such as borosilicate glass to further control the material properties.
The third reason is if you are looking do tests on microwaves or micro-vibration experiments (one of our clients had to do this), you would have a need for specialized viewport with specific transmission properties.
The fourth reason is if you are conduction any other type of experiment where you have to specify a certain viewport with a specific optical transmission property.
You have a wide selection of viewport to choose from. We offer the following viewport window materials: CaF2, Fused Silica, MgF2, Non-Magnetic, Over-Pressure, RF, Sapphire, SiO2, Germanium, and ZnSe.
The above can be installed on NW25KF, NW40KF, NW50KF, Conflat, ISO Flanges, or custom designed ports.
Please Contact Us to find out how we can help you select the appropriate viewport for your Vacuum System Application.