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PORRO PRISMS Download PDF document

Porro Prisms operate on the principle of total internal reflection (TIR). A beam entering perpendicular to the entrance / exit surface is reflected by the two roof surfaces and emerges parallel to itself. For applications in which either the acceptance angle for TIR is exceeded, or the reflecting surfaces cannot be kept sufficiently clean for TIR, a metal or dielectric coating can be applied to the reflecting surfaces.

Antireflection coated entrance and exit faces are also available.

Standard Specifications:
Porro Prisms

Optical Material:
Dimension Tolerance:
Clear Aperture:
Deviation:
Wavefront Distortion:

Surface Quality:
Bevel:
Coating:

BK7 or Fused Silica
± 0.2mm
>80%
180°
λ//4 at 632.8nm on big surface
λ/10 at 632.8nm on other surface
60-40 scratch and dig
<0.25mm X 45°
available upon request


Standard Porro Prisms

D(mm)

H(mm)

Angle Tolerance

Material

Product Number

7.16

7.16

10 arcsec

BK7

UQT-POPB0101

7.16

7.16

10 arcsec

Fused Silica

UQT-POPF0102

12.70

12.70

3 arcsec

BK7

UQT-POPB0103

12.70

12.70

3 arcsec

Fused Silica

UQT-POPF0104

25.40

25.40

3 arcsec

BK7

UQT-POPB0105

25.40

25.40

3 arcsec

Fused Silica

UQT-POPF0106

38.10

38.10

3 arcsec

BK7

UQT-POPB0107

Please Contact ultiQuest for other dimensions in prototype and production quantities.
 
NOTES!  
Every edge of these prisms is chamfered (beveled) for chipping prevention. The dimensions of these prisms are values not including chamfer.
Be sure to wear laser safety goggles when checking optical path and adjusting optical axis.
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  For more information on product,please contact our product manager Mr.Grand Liu by email: info@ultiquestcom.com

 
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