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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...

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,...

A right-angle prism is a triangular block with two legs at 90° to each other and a hypotenuse connecting them. It's one of the simplest and most widely used prisms, valued for its ability to fold or reverse a beam without the cost or fragility of a coated mirror. Key Specifications at a Glance Parameter Typical Value Substrate N-BK7, UV fused silica...

Optical prisms redirect, invert, rotate, or split light using refraction and reflection rather than a curved surface. Because the same basic block of glass can do very different jobs depending on its geometry, picking the right prism starts with knowing exactly what you need the beam or image to do. Key Specifications at a Glance Parameter Common Options Common substrates N-BK7, UV...

An achromatic doublet — often just called an achromat or achromatic lens — is made of two glass elements with different refractive index and dispersion, cemented together. That combination brings two design wavelengths to a common focal point, which sharply reduces chromatic aberration compared with a single lens element. It's the go-to correction lens for any system that has to perform across...

A meniscus lens has one convex surface and one concave surface — the shape gives it its name, since it looks like a crescent moon in cross-section. Meniscus lenses are rarely used on their own; they're almost always paired with other lenses to correct aberration and refine an existing light path. Key Specifications at a Glance Parameter Typical Value Substrate N-BK7, UV...