featured Dove Prism: Image Rotation, Specs & Applications
A dove prism is a truncated right-angle prism used to invert an image without changing the direction of the beam. Its standout property is rotational: turn the prism around its long axis, and the transmitted image rotates at twice the prism's rotation rate — which makes it a compact, purely optical image rotator. Key Specifications at a Glance Parameter Typical Value Substrate...
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Penta Prism: How It Works, Specs & Applications
A penta prism is a five-sided prism that deviates a beam by exactly 90°, without inverting or reversing the image. Unlike a right-angle prism, a penta prism keeps that 90° deviation constant even if the prism is slightly misaligned — which is exactly why it shows up in alignment and viewfinder optics. Key Specifications at a Glance Parameter Typical Value Substrate N-BK7,...
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