CALL:+ 86 591 87303536
描述
RFQ

Penta prism

Product Info

Penta prism has two important properties. The first is that as the image is deviated by 90 degrees it is neither inverted nor reversed. The second is that the penta-prism is a constant deviation prism, meaning that the same exact 90-degree deviation angle applies to all rays transmitted by the useful aperture regardless of the angles between these rays and the optical axis. The deviation is thus independent of the prism orientation, making the penta-prism especially important in application in which prism orientation can’t be precisely controlled. 

This prism is commonly used in optical tooling, alignment, range finding, surveying, and other instrumental applications.


Penta-prism-1



Specifications 

 

Material:

N-BK7, grade A fine annealed

Dimension:

±0.2mm

90° angle deviation:

< 10 arc seconds

Surface quality:

60-40 S/D 

Flatness:

λ/2@632.8nm

Coating:

AR coating on entrance and exiting surface, silver coating plus black paint on reflective surfaces 

Reflectivity:

R>95% per surface@630-680nm

 


Penta prism has two important properties. The first is that as the image is deviated by 90 degrees it is neither inverted nor reversed. The second is that the penta-prism is a constant deviation prism, meaning that the same exact 90-degree deviation angle applies to all rays transmitted by the useful aperture regardless of the angles between these rays and the optical axis. The deviation is thus independent of the prism orientation, making the penta-prism especially important in application in which prism orientation can’t be precisely controlled. 

This prism is commonly used in optical tooling, alignment, range finding, surveying, and other instrumental applications.


Penta-prism-1



Specifications 

 

Material:

N-BK7

Dimension:

±0.2mm

Angle deviation:

90°+/-10 arc seconds

Surface quality:

60-40 S/D 

Flatness:

λ/2@632.8nm

Coating:

AR coating on entrance and exiting surface, silver coating plus black paint on reflective surfaces 

Reflectivity:

R>95% per surface@630-680nm