1/20λ Optical Flat, Fused Silica, 0.5" Diameter
#43-400-000
$87.50
Diameter (inches)
0.50
Diameter Tolerance (inches)
±0.02
Thickness (inches)
0.13
Coating
Uncoated
Thickness Tolerance (inches)
±0.03
Substrate
Fused Silica
Surface Accuracy (λ)
1/20 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Clear
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/20λ Optical Flat, Zerodur, 0.5" Diameter
#43-404-000
$100.00
Diameter (inches)
0.50
Diameter Tolerance (inches)
±0.02
Thickness (inches)
0.13
Coating
Uncoated
Thickness Tolerance (inches)
±0.03
Substrate
Zerodur®
Surface Accuracy (λ)
1/20 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Yellow Tint
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/10λ Optical Flat, Fused Silica, 0.5" Diameter
#43-319-000
$53.00
Diameter (inches)
0.50
Diameter Tolerance (inches)
±0.02
Thickness (inches)
0.13
Coating
Uncoated
Thickness Tolerance (inches)
±0.03
Substrate
Fused Silica
Surface Accuracy (λ)
1/10 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Clear
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/10λ Optical Flat, Zerodur, 0.5" Diameter
#43-327-000
$65.00
Diameter (inches)
0.50
Diameter Tolerance (inches)
±0.02
Thickness (inches)
0.13
Coating
Uncoated
Thickness Tolerance (inches)
±0.03
Substrate
Zerodur®
Surface Accuracy (λ)
1/10 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Yellow Tint
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/4λ Optical Flat, Fused Silica, 0.5" Diameter
#43-323-000
$35.00
Diameter (inches)
0.50
Diameter Tolerance (inches)
±0.02
Thickness (inches)
0.13
Coating
Uncoated
Thickness Tolerance (inches)
±0.03
Substrate
Fused Silica
Surface Accuracy (λ)
1/4 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Clear
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/4λ Optical Flat, Zerodur, 0.5" Diameter
#43-331-000
$47.00
Diameter (inches)
0.50
Diameter Tolerance (inches)
±0.02
Thickness (inches)
0.13
Coating
Uncoated
Thickness Tolerance (inches)
±0.03
Substrate
Zerodur®
Surface Accuracy (λ)
1/4 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Yellow Tint
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/20λ Optical Flat, Fused Silica, 1" Diameter
#43-408-000
$124.00
Diameter (inches)
1.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Fused Silica
Surface Accuracy (λ)
1/20 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Clear
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/20λ Optical Flat, Zerodur, 1" Diameter
#43-412-000
$135.00
Diameter (inches)
1.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Zerodur®
Surface Accuracy (λ)
1/20 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Yellow Tint
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/10λ Optical Flat, Fused Silica, 1" Diameter
#01-913-000
$83.00
Diameter (inches)
1.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Fused Silica
Surface Accuracy (λ)
1/10 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Clear
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/10λ Optical Flat, Zerodur, 1" Diameter
#32-195-000
$95.00
Diameter (inches)
1.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Zerodur®
Surface Accuracy (λ)
1/10 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Yellow Tint
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/4λ Optical Flat, Fused Silica, 1" Diameter
#32-632-000
$47.00
Diameter (inches)
1.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Fused Silica
Surface Accuracy (λ)
1/4 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Clear
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/4λ Optical Flat, Zerodur, 1" Diameter
#32-656-000
$59.00
Diameter (inches)
1.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Zerodur®
Surface Accuracy (λ)
1/4 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Yellow Tint
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Exempt
1/20λ Optical Flat, Fused Silica, 2" Diameter
#43-416-000
$195.00
Diameter (inches)
2.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Fused Silica
Surface Accuracy (λ)
1/20 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Clear
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/20λ Optical Flat, Zerodur, 2" Diameter
#43-420-000
$220.00
Diameter (inches)
2.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Zerodur®
Surface Accuracy (λ)
1/20 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Yellow Tint
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/10λ Optical Flat, Fused Silica, 2" Diameter
#01-914-000
$124.00
Diameter (inches)
2.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Fused Silica
Surface Accuracy (λ)
1/10 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Clear
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/10λ Optical Flat, Zerodur, 2" Diameter
#32-199-000
$145.00
Diameter (inches)
2.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Zerodur®
Surface Accuracy (λ)
1/10 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Yellow Tint
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/4λ Optical Flat, Fused Silica, 2" Diameter
#32-636-000
$83.00
Diameter (inches)
2.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Fused Silica
Surface Accuracy (λ)
1/4 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Clear
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/4λ Optical Flat, Zerodur, 2" Diameter
#32-660-000
$107.00
Diameter (inches)
2.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Zerodur®
Surface Accuracy (λ)
1/4 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Yellow Tint
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Exempt
1/20λ Optical Flat, Fused Silica, 3" Diameter
#47-573-000
$370.00
Diameter (inches)
3.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.75
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Fused Silica
Surface Accuracy (λ)
1/20 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Clear
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Exempt
1/20λ Optical Flat, Zerodur, 3" Diameter
#48-117-000
$419.00
Diameter (inches)
3.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.75
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Zerodur®
Surface Accuracy (λ)
1/20 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Yellow Tint
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Exempt
1/10λ Optical Flat, Fused Silica, 3" Diameter
#01-915-000
$270.00
Diameter (inches)
3.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.75
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Fused Silica
Surface Accuracy (λ)
1/10 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Clear
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Exempt
1/10λ Optical Flat, Zerodur, 3" Diameter
#31-391-000
$315.00
Diameter (inches)
3.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.75
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Zerodur®
Surface Accuracy (λ)
1/10 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Yellow Tint
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/4λ Optical Flat, Fused Silica, 3" Diameter
#32-640-000
$141.00
Diameter (inches)
3.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.75
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Fused Silica
Surface Accuracy (λ)
1/4 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Clear
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/4λ Optical Flat, Zerodur, 3" Diameter
#32-664-000
$185.00
Diameter (inches)
3.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.75
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Zerodur®
Surface Accuracy (λ)
1/4 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Yellow Tint
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/20λ Optical Flat, Fused Silica, 4" Diameter
#47-574-000
$600.00
Diameter (inches)
4.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.75
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Fused Silica
Surface Accuracy (λ)
1/20 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Clear
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Exempt
1/20λ Optical Flat, Zerodur, 4" Diameter
#48-118-000
$655.00
Diameter (inches)
4.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.75
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Zerodur®
Surface Accuracy (λ)
1/20 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Yellow Tint
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Exempt
1/10λ Optical Flat, Fused Silica, 4" Diameter
#01-611-000
$568.00
Diameter (inches)
4.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.75
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Fused Silica
Surface Accuracy (λ)
1/10 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Clear
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Exempt
1/10λ Optical Flat, Zerodur, 4" Diameter
#31-392-000
$568.00
Diameter (inches)
4.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.75
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Zerodur®
Surface Accuracy (λ)
1/10 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Yellow Tint
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/4λ Optical Flat, Fused Silica, 4" Diameter
#32-644-000
$349.00
Diameter (inches)
4.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.75
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Fused Silica
Surface Accuracy (λ)
1/4 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Clear
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/4λ Optical Flat, Zerodur, 4" Diameter
#32-668-000
$405.00
Diameter (inches)
4.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
0.75
Coating
Uncoated
Thickness Tolerance (inches)
±0.06
Substrate
Zerodur®
Surface Accuracy (λ)
1/4 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Yellow Tint
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/20λ Optical Flat, Fused Silica, 6" Diameter
#47-575-000
$1,910.00
Diameter (inches)
6.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
1.00
Coating
Uncoated
Thickness Tolerance (inches)
±0.08
Substrate
Fused Silica
Surface Accuracy (λ)
1/20 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Clear
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/20λ Optical Flat, Zerodur, 6" Diameter
#48-119-000
$2,100.00
Diameter (inches)
6.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
1.00
Coating
Uncoated
Thickness Tolerance (inches)
±0.08
Substrate
Zerodur®
Surface Accuracy (λ)
1/20 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Yellow Tint
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Exempt
1/10λ Optical Flat, Fused Silica, 6" Diameter
#01-612-000
$1,280.00
Diameter (inches)
6.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
1.00
Coating
Uncoated
Thickness Tolerance (inches)
±0.08
Substrate
Fused Silica
Surface Accuracy (λ)
1/10 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Clear
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/10λ Optical Flat, Zerodur, 6" Diameter
#31-393-000
$1,370.00
Diameter (inches)
6.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
1.00
Coating
Uncoated
Thickness Tolerance (inches)
±0.08
Substrate
Zerodur®
Surface Accuracy (λ)
1/10 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Yellow Tint
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/4λ Optical Flat, Fused Silica, 6" Diameter
#32-648-000
$1,029.00
Diameter (inches)
6.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
1.00
Coating
Uncoated
Thickness Tolerance (inches)
±0.08
Substrate
Fused Silica
Surface Accuracy (λ)
1/4 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Clear
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/4λ Optical Flat, Zerodur, 6" Diameter
#32-672-000
$1,115.00
Diameter (inches)
6.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
1.00
Coating
Uncoated
Thickness Tolerance (inches)
±0.08
Substrate
Zerodur®
Surface Accuracy (λ)
1/4 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Yellow Tint
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Compliant
1/20λ Optical Flat, Fused Silica, 8" Diameter
#49-048-000
$3,540.00
Diameter (inches)
8.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
1.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.10
Substrate
Fused Silica
Surface Accuracy (λ)
1/20 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Clear
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Exempt
1/20λ Optical Flat, Zerodur, 8" Diameter
#49-049-000
$3,555.00
Diameter (inches)
8.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
1.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.10
Substrate
Zerodur®
Surface Accuracy (λ)
1/20 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Yellow Tint
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Exempt
1/10λ Optical Flat, Fused Silica, 8" Diameter
#31-390-000
$2,720.00
Diameter (inches)
8.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
1.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.1
Substrate
Fused Silica
Surface Accuracy (λ)
1/10 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Clear
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Exempt
1/10λ Optical Flat, Zerodur, 8" Diameter
#31-394-000
$2,825.00
Diameter (inches)
8.00
Diameter Tolerance (inches)
±0.04
Thickness (inches)
1.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.1
Substrate
Zerodur®
Surface Accuracy (λ)
1/10 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Yellow Tint
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Exempt
1/4λ Optical Flat, Fused Silica, 8" Diameter
#32-652-000
$2,060.00
Diameter (inches)
8.00
Diameter Tolerance (inches)
+0/-0.04"
Thickness (inches)
1.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.10
Substrate
Fused Silica
Surface Accuracy (λ)
1/4 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Clear
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Exempt
1/4λ Optical Flat, Zerodur, 8" Diameter
#32-676-000
$2,165.00
Diameter (inches)
8.00
Diameter Tolerance (inches)
+0/-0.04"
Thickness (inches)
1.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.10
Substrate
Zerodur®
Surface Accuracy (λ)
1/4 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.458
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.55
Color
Yellow Tint
Abbe Number (vd )
67.7
Young's Modulus (GPa)
72.7
Knoop Hardness (kg/mm2 )
522
Poisson's Ratio
0.16
Density (g/cm3 )
2.2
Surface Quality
60-40
Parallelism (arcminutes)
≤ 3
RoHS
Exempt
1/10λ Optical Flat, Fused Silica, 10" Diameter
#46-715-000
$4,000.00
Diameter (inches)
10.00
Diameter Tolerance (inches)
+0/-0.04"
Thickness (inches)
1.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.1
Substrate
Fused Silica
Surface Accuracy (λ)
1/10 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Clear
Abbe Number (vd )
56.2
Young's Modulus (GPa)
0.1
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤3
RoHS
Exempt
1/10λ Optical Flat, Fused Silica, 12" Diameter
#69-921-000
$5,695.00
Diameter (inches)
12.00
Diameter Tolerance (inches)
+0/-0.04"
Thickness (inches)
1.50
Coating
Uncoated
Thickness Tolerance (inches)
±0.1
Substrate
Fused Silica
Surface Accuracy (λ)
1/10 @ 632.8nm
Type
Single Surface
Index of Refraction nd
1.542
Coefficient of Thermal Expansion CTE (10-6 /°C)
0.1
Color
Clear
Abbe Number (vd )
56.2
Young's Modulus (GPa)
90.3
Knoop Hardness (kg/mm2 )
620
Poisson's Ratio
0.243
Density (g/cm3 )
2.53
Surface Quality
60-40
Parallelism (arcminutes)
≤3
RoHS
Exempt
Single Surface Optical Flats
View Legend
