Pentaprism
This pentagonal prism has four polished faces: two reflecting faces and two entrance and exit faces. Its reflecting faces are coated with a reflective film and protected with black paint. The pentaprism redirects light by 90° without image-plane rotation or mirror reversal. The 90° deviation remains unchanged with prism position, facilitating assembly. Pentaprisms are widely used in levels and rangefinders and can also be used in single-lens reflex cameras.
Specification Snapshot
Dimensions
7x7mm--25.4x25.4mm
Clear Aperture Dimension
>90%
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Overview
This pentagonal prism has four polished faces: two reflecting faces and two entrance and exit faces. Its reflecting faces are coated with a reflective film and protected with black paint. The pentaprism redirects light by 90° without image-plane rotation or mirror reversal. The 90° deviation remains unchanged with prism position, facilitating assembly. Pentaprisms are widely used in levels and rangefinders and can also be used in single-lens reflex cameras.
Specifications
| Parameter | Value |
|---|---|
| Material | K9 |
| Dimensions | 7x7mm--25.4x25.4mm |
| Dimensional Tolerance | ±0.25mm |
| 90° Deflection Accuracy | <5seconds |
| Surface Figure [@632.8nm] | <λ/4@632.8nm |
| Reflection [@630-680nm] | Dielectric high-reflection or metallic coating, R>90%@630-680nm |
| Surface Quality | 20/10 |
| Clear Aperture Dimension | >90% |
Datasheet
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Supplier Information
Shanghai Yingying Optical Device Factory is located in Jiading, Shanghai, an optical processing base in China. It is an enterprise integrating production, sales and design. Our products include laser crystals, nonlinear crystals, birefringent crystals, lenses, prisms, etc., widely used in semiconductors, electronics, optics, lasers, and communications. Lens processing diameter ranges from 3 to 800mm, surface finish up to 10/5, surface figure <1/20 rings, monthly output of over 50,000 substrates, dimensional tolerance <0.02mm. Crystal processing covers calcite (CaCo3), YVO4, single crystal silicon (Si), germanium (Ze), sapphire, KDP, KD*PD, etc., and custom-made Rochon prisms, Glan prisms, etc.
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