PORRO PRISMS

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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:
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.