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Optical Mirror Buying Guide: Flat, Concave & Convex Mirrors

An optical mirror reflects light using a coated surface rather than refraction, which makes it useful anywhere a lens's chromatic aberration or transmission loss would get in the way. Choosing the right one comes down to two decisions: what surface shape you need, and what coating will reflect your wavelength efficiently. Key Specifications at a Glance Parameter Common Options Common substrates N-BK7,...

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What Is Ultra-Thin Glass? Thickness Range & Applications

Ultra-thin glass is glass thin enough to flex — in some cases enough to fold — while keeping the scratch resistance, chemical stability, and optical clarity of standard glass. The property that makes it useful isn't the material itself; it's simply how thin it can be made without breaking. Key Specifications at a Glance Parameter Typical Value Thickness range 0.03 mm–1.1 mm...

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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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Right-Angle Prism: Specs, Uses & How It Works

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...

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Meniscus Lens Guide: Positive vs. Negative & Applications

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...

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Spherical Singlet Lenses: Types, Specs & Applications

A spherical singlet lens has one or two surfaces ground to a constant radius of curvature — the simplest and most widely used optical lens design. Because a sphere is easier to generate, polish, and test than any other surface, spherical singlets remain the default choice for focusing, collimating, and imaging applications across the visible and near-IR range. Key Specifications at a...

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