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Pellin-Broca Prisms

Pellin-Broca Prisms

In a Pellin-Broca prism, an ordinary dispersing prism is split in half along the bisector of the apex angle.

from 63 $
delivery Estimated delivery time: 4 - 5 days
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Specifications
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Description
Material
A
B
H
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BK7
Code Material A B H Price Delivery Add to cart
325-0206 BK7 11 mm 20 mm 6,4 mm 63 $ 4 - 5 days
325-0412 BK7 23,5 mm 40 mm 12,7 mm 69 $ 4 - 5 days
UVFS
Code Material A B H Price Delivery Add to cart
325-1206 UV FS 11 mm 20 mm 6,4 mm 121 $ 4 - 5 days
325-1215 UV FS 15 mm 26 mm 15 mm 133 $ 4 - 5 days
325-1412 UV FS 23,5 mm 40 mm 12,7 mm 165 $ 4 - 5 days

Material

BK7, UV FS

Surface quality

20-10 scratch & dig (MIL-PRF-13830B)

Surface flatness

λ/10 at  633 nm

Angles

α = 79.5° ± 0.5°, β = 60° ± 1°

Design wavelength

546.1 nm

Dimensions tolerance

± 0.2 mm

Clear aperture

> 80% of dimensions

EKSMA Optics Pellin-Broca Prisms
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  • Extremely small loss for p-polarized beam
  • Separated by wavelength light is conveniently turned by 90° angle with minimum deviation
  • UVFS prisms provide 1.26° separation between 532 and 1064 nm

In a Pellin-Broca prism, an ordinary dispersing prism is split in half along the bisector of the apex angle. Using a right angle prism, the two halves are joined to create a dispersing prism with an internal right angle bend obtained by total internal reflection. The entrance beam is deviated at 90° angle to its initial direction.