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TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

Half-Penta Prisms

Deviates Line of Sight by 45°
Combine with Schmidt Prism to Create Schmidt-Pechan Prism
Penta Prisms Also Available

Half-Penta prisms are used to deviate the line of sight by 45° without inverting or reverting the image. The reflecting surface is aluminized and over-coated with Inconel and black paint to increase efficiency. Combining a TECHSPEC® Half-Penta Prism with a corresponding size TECHSPEC® Schmidt Prism creates a Pechan prism pair. The Pechan prism pair will invert or revert the image while not deviating the line of sight. It can be used with converging or diverging light for system size reduction.

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Technical Information

Half-Penta Prism Tunnel Diagram

Dimensions
Stock No.	A	B	C	D
#65-587	10.00mm	10.82mm	2.07mm	14.14mm
#65-590	25.00mm	27.06mm	5.18mm	35.35mm

Accessories

Custom

Edmund Optics offers comprehensive custom manufacturing services for optical and imaging components tailored to your specific application requirements. Whether in the prototyping phase or preparing for full-scale production, we provide flexible solutions to meet your needs. Our experienced engineers are here to assist—from concept to completion.

Our capabilities include:

Custom dimensions, materials, coatings, and more
High-precision surface quality and flatness
Tight tolerances and complex geometries
Scalable production—from prototype to volume

Learn more about our custom manufacturing capabilities or submit an inquiry here.