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Penta Prism

Pentaprism is a polyhedral prism with a special optical structure, consisting of two refractive surfaces at a 90° angle and two reflective surfaces at a 45° angle. Light is incident vertically from any 90° plane, undergoes two reflections (non total reflection), and exits from another 90° plane to achieve precise 90° deflection. This optical component is used in specific applications such as DSLR camera viewfinders, laser levels, rangefinders, high-voltage tower vertical detection, cable conduit calibration, laser cutting and welding equipment optical path adjustment, semiconductor wafer positioning, and conveyor belt object detection.

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Specification of Penta Prism


Material

N-BK7

Diameter Tolerance

±0.1mm

Angular Tolerance

≤2''

Flatness

λ/4 @ 632.8nm

Surface Quality

40/20

Clear Aperture

>85%

Bevel

<0.25mm X 45°

Coating

S1&S2-Single layer MgF2 coating

S3&S4

Aluminized and painted black

Dimension(mm)

7x5, 7x6, 10x10, 15x15, 20x20, 30x30


ECOPTIK at APE 2026
Exhibition time: February 4-6, 2026Exhibition address: Sands Expo & Convention Centre, SingaporeBooth No. B234

18

2026.03

ECOPTIK at SPIE Photonics West 2026
Exhibition time: January 20-22, 2026Exhibition address: Moscone Center, San FranciscoBooth No.:#1767

18

2026.03

Pushing the Boundaries of Vision: Custom Plan Apochromatic Objectives by ECOPTIK
Top-tier scientific research and demanding industrial applications can't afford compromise. When standard optics fall short, you need a partner capable of engineering vision at the microscopic lev...

30

2025.10

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