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Aluminized Optical Prisms Height 12.7mm Half Penta Prism Used In Telescopes
Aluminized Optical Prisms Height 12.7mm Half Penta Prism Used In Telescopes
Specifications
Brand Name :
STAR OPTIC
Model Number :
HPP
Certification :
RoHS, ISO9001
Place of Origin :
Wuhan, China
MOQ :
Negotiable
Price :
Negotiable
Payment Terms :
T/T, Western Union, Paypal
Supply Ability :
50000pcs/Month
Delivery Time :
Negotiable
Packaging Details :
Safe and dust-free packing
Product Name :
Half Penta Prism
Feature :
deviate the beam by 45° without inverting or reverting the image
eometrical structure :
Hlaf cut of penta prism
Applications :
projection and imaging system
Size :
12.7-18mm and custom available
Surface :
Non-TIR surface can be coated or HR coated
Description

Half Penta Prism, Semipentaprisms, Used In Telescopes

Overview:

Half-Penta prisms also known as Bauernfeind prisms or Semi-pentaprisms are used to deviate the line of sight by 45° without inverting or reverting the image. It is widely used in telescopes and also has applications in projection and imaging system, in microscope tubes, and in geodesy.

The Half-penta prism has the geometrical structure of a penta prism cut in half. The beam is reflected twice in the prism, first with total internal reflection and a second time on a coated reflecting surface. The prism requires aluminized and over-coated with Inconel and black paint for the non-TIR surface to be usable in practice.

Combining a Half-Penta Prism with a correspond size Schmidt roof prism creates a Pechan prism pair. The Pechan prism pair will invert or revert the image while not deviating the line of sight.

General Specifications of Half-penta Prism:

Material BK7 Aluminized Optical Prisms Height 12.7mm Half Penta Prism Used In Telescopes
Dimension Tolerance ±0.2mm
Angle Tolerance <3 arc minutes
Roof Angle Tolerance <3 arc sec
Flatness λ/4@632.8nm
Surface Quality 60/40 scratch and dig
Clear Aperture >90%
Coating No coating, available

Standard Products of Half-penta Prism:

PN. Material

A

(mm)

h

(mm)

AR Coating

 HR Coating
HPP1212 N-BK7 12.7 12.7 Uncoated Uncoated
HPP1616 N-BK7 16.5 16.5 Uncoated Uncoated
HPP1820 N-BK7 18.0 20 Uncoated Uncoated
HPP1212-450-650-MAL N-BK7 12.7 12.7 AR@450-650nm

Protected Aluminum
HPP1616-450-650-MAL N-BK7 16.5 16.5 AR@450-650nm

Protected Aluminum
HPP1820-450-650-MAL N-BK7 18.0 20.0 AR@450-650nm

Protected Aluminum

Product tags

optical prism formula

,

refraction light prism

,

geology magnifying glass
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Aluminized Optical Prisms Height 12.7mm Half Penta Prism Used In Telescopes

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Product Detail
Brand Name :
STAR OPTIC
Model Number :
HPP
Certification :
RoHS, ISO9001
Place of Origin :
Wuhan, China
MOQ :
Negotiable
Price :
Negotiable
Contact Supplier
Aluminized Optical Prisms Height 12.7mm Half Penta Prism Used In Telescopes

Wuhan Star Optic Technology Co., Ltd

Verified Supplier
3 Years
wuhan
Since 2017
Business Type :
Manufacturer, Exporter, Seller
Main Products :
Optical Glass Lenses, Optical Cylinder Lens, Spherical Glass Lens
Total Annual :
1000000-3000000
Employee Number :
10~50
Certification Level :
Verified Supplier
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