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• Material
• UV Grade Fused Silica (65)
• Sapphire (22)
• Grade A BK 7 or equivalent (13)
• Excimer Grade UV Fused Silica (12)
• CaF₂ (Vacuum UV Grade) (11)
• CVD Laser Grade ZnSe (8)
• Optical Grade Germanium (4)
• Magnesium Fluoride (4)
• Silicon (1)
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• Diameter
• 1.0 in. (25.4 mm) (21)
• 2.0 in. (50.8 mm) (17)
• 0.49 in. (12.5 mm) (14)
• 0.98 in. (25.0 mm) (13)
• 1.97 in. (50.0 mm) (12)
• 0.5 in. (12.7 mm) (12)
• 1.57 in. (40.0 mm) (7)
• 0.20 in. (5.0 mm) (7)
• 1.18 in. (30.0 mm) (6)
• 0.79 in. (20.0 mm) (6)
• 0.59 in. (15.0 mm) (6)
• 0.39 in. (10.0 mm) (6)
• 2.95 in. (75.0 mm) (3)
• 1.5 in. (38.1 mm) (1)
• 1.38 in. (35.0 mm) (1)
• 1.25 in. (31.8 mm) (1)
• 0.94 in. (23.75 mm) (1)
• 0.87 in. (22.0 mm) (1)
• 0.68 in. (17.25 mm) (1)
• 0.51 in. (13.0 mm) (1)
• 0.50 in. (12.7 mm) (1)
• 0.374 in. (9.50 mm) (1)
• 0.25 in. (6.35 mm) (1)
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• Thickness
• 0.08 in. (2.0 mm) (29)
• 0.12 in. (3.0 mm) (28)
• 0.24 in. (6.0 mm) (24)
• 0.04 in. (1.0 mm) (14)
• 0.39 in. (10.0 mm) (10)
• 0.157 in. (4.0 mm) (9)
• 0.197 in. (5.0 mm) (5)
• 0.059 in. (1.5 mm) (5)
• 0.37 in. (9.4 mm) (4)
• 0.051 in. (1.3 mm) (4)
• 0.02 in. (0.5 mm) (3)
• 0.13 in. (3.2 mm) (2)
• 0.09 in. (2.3 mm) (2)
• 0.50 in. (12.7 mm) (1)
• 0.375 in. (9.52 mm) (1)
• 0.08 in. (2.00 mm) (1)
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• Antireflection Coating
• Uncoated (61)
• 430-700 nm (AR.14) (10)
• 425-675 nm (AR.14), both sides (10)
• 250-700 nm (AR.15), both sides (10)
• 250-450 nm (AR.10), both sides (10)
• 650-1000 nm (AR.16) (8)
• 1000-1550 nm (AR.18) (8)
• 300-1200 nm (AR.20) (6)
• 245-440 nm (AR.10) (4)
• R< 0.25% per surface @ 532 nm (3)
• R< 0.25% per surface @ 355 nm (3)
• R< 0.25% per surface @ 266 nm (3)
• R< 0.25% per surface @ 1064 nm (3)
• 3-12 μm (AR.20) (3)
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• Surface Quality
• 10-5 scratch-dig (43)
• 20-10 scratch-dig (39)
• 40-20 scratch-dig (34)
• 80-50 scratch-dig (19)
• 15-5 scratch-dig (6)
• 60-40 scratch-dig (1)
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• Surface Accuracy
• λ/10 @ 632.8 nm (47)
• 2 λ per 25.4 mm @ 632.8 nm (19)
• λ/20 @ 10.6 μm (15)
• λ/2 @ 632.8 nm (13)
• λ/4 @ 633 nm on both side (2)
• λ/4 @ 633 nm per inch (1)
• λ/10 @ 633 nm (1)
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• Clear Aperture
• Central 80% of diameter (50)
• Central 90% of diameter (49)
• Central 85% of diameter (34)
• ≥central 80% of diameter (1)

• Availability
• In Stock (117)
• 2 Weeks (1)
• 4 Weeks (2)
• 5 Weeks (3)
• 6 Weeks (1)

• Special Offers
• In Stock (117)
• Clearance (3)

• Price
• $50 - $100 (21)
• $100 - $200 (69)
• $200 - $300 (24)
• $300 - $400 (8)
• $400 - $500 (5)
• $500 - $750 (8)
• $750 - $1000 (2)
• $1000 - $1500 (1)
• $1500 - $2000 (1)
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