N-BK7 Roof Prisms

Roof prisms also referred to as right angle roof prisms, are reflective optical prisms that revert and also invert the image in addition to bending the range of vision by a 90°angle. It features an area with two surfaces coming across at a 90° angle. These 90° surfaces seem like a roof of a building. The reflection from the two 90° surfaces results an image which is flipped laterally across the axis point where the surfaces meet.
 
The fact that the ray is split in half, with one half reaching the first surface and after that the second surface, when it is invert for the other half of the ray. Accordingly a roof prism is often used just with distant to focal planes, or perhaps the "edge" of the roof might present little distortions. The hypotenuse of the prism uses complete internal reflection (TIR) to reflect the image throughout the prism.
 
SK-Advanced Roof Prisms are produced from precision N-BK7, that can be used whenever a right angle deflection of an image or perhaps laser beam, is needed. These kind of Roof Prisms are perfect for usage in locating scopes, and also any kind of optical instrument which is needed to use an inverted image from an objective, transforming it right side up and also folding it along a 90° angle in an effort to handle the appropriate visual positioning.