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Penta Prism

Penta Prism, Prism www.simtrum.com

Penta Prism is a five-sided prism which features two important properties. Firstly, the images formed are neither inverted nor reversed while being deviated by 90 degrees. Secondly, it is a constant deflection device where all the transmitted rays are exactly deflected by 90 degrees. Any slight movement of the prisms would not adversely affect the right deflected angle. This feature makes the prisms useful in rangefinder as well as in viewfinders of single reflex cameras. The reflecting surfaces are typically enhanced aluminium-coated with a black paint overcoat for protection.


BK7 is the most common optical glass used in high-quality optical components as it is a hard glass that can withstand a variety of physical and chemical exposure. Relatively scratch and chemical resistant, it has a low bubble and inclusion content, therefore making it an ideal choice for precision lenses. It is the ideal choice for general purpose visual and NIR applications as it has excellent transmission.



General Specifications

Shape

Penta Prism

Material

BK7

Coating

Protected Aluminum reflective coating, Single Layer MgF2 AR coating at 550nm

Dimensional Tolerance(mm)

±0.2

Deviation Angle(degree)

90

Flatness

Reflection Surface: λ/4@633nm; Transmission Surface: λ/2@633nm

Surface Quality

40/20

Clear Aperture

>90%

Chamfer

0.5mmx45°

Damage Threshold(pulsed)

7.5 J/cm2 (10ns/10Hz)





Dimension A*h (mm)

Angle Tolerance


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Compare Model Drawings & Specs Coating Angle Tolerance Dimension A*h (mm) Availability Price
(USD)
BK7-PP-30*30-PAL
BK7, Penta Prism, A*h= 30*30mm, Protected Aluminum Coating: R>87% @ 400-1200nm
R>87% @ 400-1200nm<3 arcmin30*30 In Stock $68.00
BK7-PP-40*40-Pal
BK7, Penta Prism, A*h= 40*40mm, Protected Aluminum Coating: R>87% @ 400-1200nm
R>87% @ 400-1200nm<3 arcmin40*40 In Stock $88.00
BK7-PP-7*6-PAL
BK7, Penta Prism, A*h= 7*6mm, Protected Aluminum Coating: R>87% @ 400-1200nm
R>87% @ 400-1200nm<30 arcsec7*6 In Stock $37.00
BK7-PP-10*10-PAL
BK7, Penta Prism, A*h= 10*10mm, Protected Aluminum Coating: R>87% @ 400-1200nm
R>87% @ 400-1200nm<30 arcsec10*10 In Stock $48.00
BK7-PP-20*20-PAL
BK7, Penta Prism, A*h= 20*20mm, Protected Aluminum Coating: R>87% @ 400-1200nm
R>87% @ 400-1200nm<30 arcsec20*20 In Stock $56.00
BK7-PP-25.4*25.4-PAL
BK7, Penta Prism, A*h= 25.4*25.4mm, Protected Aluminum Coating: R>87% @ 400-1200nm
R>87% @ 400-1200nm<30 arcsec25.4*25.4 In Stock $85.00

BK7-PP-25.4*25.4-PAL - Parameter

Type
Penta Prism

Material
BK7

Coating
R>87% @ 400-1200nm

Surface Quality
40/20

Clear Aperture
>90%

Chamfer
<0.5mmx45°

Damage Threshold (pulsed)
7.5 J/cm2 (10ns/10Hz)

Dimensional Tolerance (mm)
+0/-0.2

Flatness
<λ/4@633nm

Angle Tolerance
<30 arcsec

Dimension A*h (mm)
25.4*25.4

BK7-PP-20*20-PAL - Parameter

Type
Penta Prism

Material
BK7

Coating
R>87% @ 400-1200nm

Surface Quality
40/20

Clear Aperture
>90%

Chamfer
<0.5mmx45°

Damage Threshold (pulsed)
7.5 J/cm2 (10ns/10Hz)

Dimensional Tolerance (mm)
+0/-0.2

Flatness
<λ/4@633nm

Angle Tolerance
<30 arcsec

Dimension A*h (mm)
20*20

BK7-PP-10*10-PAL - Parameter

Type
Penta Prism

Material
BK7

Coating
R>87% @ 400-1200nm

Surface Quality
40/20

Clear Aperture
>90%

Chamfer
<0.5mmx45°

Damage Threshold (pulsed)
7.5 J/cm2 (10ns/10Hz)

Dimensional Tolerance (mm)
+0/-0.2

Flatness
<λ/4@633nm

Angle Tolerance
<30 arcsec

Dimension A*h (mm)
10*10

BK7-PP-7*6-PAL - Parameter

Type
Penta Prism

Material
BK7

Coating
R>87% @ 400-1200nm

Surface Quality
40/20

Clear Aperture
>90%

Chamfer
<0.5mmx45°

Damage Threshold (pulsed)
7.5 J/cm2 (10ns/10Hz)

Dimensional Tolerance (mm)
+0/-0.2

Flatness
<λ/4@633nm

Angle Tolerance
<30 arcsec

Dimension A*h (mm)
7*6

BK7-PP-40*40-Pal - Parameter

Type
Penta Prism

Material
BK7

Coating
R>87% @ 400-1200nm

Surface Quality
40/20

Clear Aperture
>90%

Chamfer
<0.5mmx45°

Damage Threshold (pulsed)
7.5 J/cm2 (10ns/10Hz)

Dimensional Tolerance (mm)
+0/-0.2

Flatness
<λ/4@633nm

Angle Tolerance
<3 arcmin

Dimension A*h (mm)
40*40

BK7-PP-30*30-PAL - Parameter

Type
Penta Prism

Material
BK7

Coating
R>87% @ 400-1200nm

Surface Quality
40/20

Clear Aperture
>90%

Chamfer
<0.5mmx45°

Damage Threshold (pulsed)
7.5 J/cm2 (10ns/10Hz)

Dimensional Tolerance (mm)
+0/-0.2

Flatness
<λ/4@633nm

Angle Tolerance
<3 arcmin

Dimension A*h (mm)
30*30

BK7-PP-25.4*25.4-PAL - Download

BK7-PP-20*20-PAL - Download

BK7-PP-10*10-PAL - Download

BK7-PP-7*6-PAL - Download

BK7-PP-40*40-Pal - Download

BK7-PP-30*30-PAL - Download

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Compare Model Drawings & Specs Availability Price
(USD)