Description
Factory conventional optical glass right angle prism custom optical prism
High-precision right angle prism deflects light by 90° or 180° through total internal reflection or mirrored hypotenuse. Ideal for beam steering, image orientation, periscopes, rangefinders, and alignment systems.
Available in N-BK7, fused silica, and H-K9L with optional AR coating on entrance/exit faces or reflective coating on hypotenuse.
Tight angle tolerance (±30 arcsec to ±3 arcmin) and surface quality (40-20 to 20-10 S/D). Custom sizes from 3 mm to 100 mm available. Request a quote for prototypes or volume production.
Specifications:
Material: N-BK7 (nd=1.5168, νd=64.2) / K9 (H-K9L) / B270 / UV Fused Silica (JGS1) / H-ZF6 / Custom
Prism Type: Right Angle Prism (90° Apex)
Angle Configuration: 90° – 45° – 45° (Standard)
Beam Deviation: 90° (Hypotenuse input) / 180° Retroreflector (Both legs input)
Typical Size (Leg Length): 5mm / 10mm / 12.7mm / 15mm / 20mm / 25mm / 25.4mm / 30mm / 50mm / Custom
Dimension Tolerance: ±0.05mm – ±0.1mm
Angle Tolerance: ±3 arc min (Commercial) / ±30 arc sec (Precision) / ±5 arc sec (High Precision)
Surface Flatness: λ/4 @ 632.8nm (Standard) / λ/10 (High Precision)
Surface Quality (Scratch-Dig): 60-40 (Standard) / 40-20 / 20-10 (Laser Grade)
Clear Aperture: >90% of face area
Bevel / Chamfer: 0.1–0.3mm × 45°
Wavefront Distortion: λ/4 per 25mm (Standard)
Coating Options:
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Hypotenuse Face: Uncoated (TIR Mode) / Protected Aluminum / Enhanced Aluminum / Protected Silver / Dielectric HR @ Specific Wavelength
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Leg Faces: Uncoated / MgF₂ AR / Broadband AR 400–700nm / V-Coating @ 532nm / 633nm / 1064nm / CustomTransmittance Range: 350nm – 2000nm (BK7/K9) / 185nm – 2100nm (UV Fused Silica)Temperature Range: -40°C to +80°C
