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TECHNICAL SERVICE
Products
Products
Optical Flats
An optical flat is a flat surface which is precisely polished.It can be used as a reference
Classification:
High precision plane mirror
Hotline:
Optical Flats
Graphic Details
An optical flat is a flat surface which is precisely polished.It can be used as a reference,against which the flatness of unknown surface may be compared.Measurement of the surface flatness of polished surfaces can be determined visually by comparing the variations between a work surface and the surface of an optical flat.These optical flats can be used in many applications,such as,inspecting of gauge blocks for wear and accuracy,as well as testing various components,including windows,prisms,filters,mirrors,etc.They can also be used as an extremely standard flat in interferometers.
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Material:
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NBK7A
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ZKN7
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Fused Silica |
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Index of Refraction(587.6nm):
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1.5168
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1.5080
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1.4586
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Abbe Number(νd):
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64.20
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61.05
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68.00 |
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Density(g/cm3):
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2.52
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2.43
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2.21
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Coefficient of Expansion(-60℃― +20℃):
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66xper ℃
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42xper ℃
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2.1xper ℃ |
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Surface Quality:
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60/40
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60/40
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60/40
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Surface Accuracy:
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λ/10 &λ/20
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λ/10 &λ/20
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λ/10 &λ/20
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Back surface accuracy:
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See table
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See table
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See table |
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Parallelism:
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5-10 arcmin
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5-10 arcmin
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5-10 arcmin
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Clear Aperture:
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>90% of central diameter
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>90% of central diameter
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>90% of central diameter
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Bevel:
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1.0x45°
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1.0x45°
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1.0x45°
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· The back surface of our single surface flats is only for viewing the interference pattern..
· All dimensions are in mm unless otherwise specified.
· Other size and dual surface optical flats are available upon requests.
Custom Design:
| Optical Flat： | |||||
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Product Number
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Diameter
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Thickness
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Surface Acccurac
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Back Surface Accuracy
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Material
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MX-30B-A
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30±0.6
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10.0±1.0
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λ/20
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λ
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NBK7A/H-K9L
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MX-30B-B
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30±0.6
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10.0±1.0
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λ/10
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λ
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NBK7A/H-K9L
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MX-30Z-A
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30±0.6
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10.0±1.0
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λ/20
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λ
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ZKN7/H-K4
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MX-30Z-B
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30±0.6
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10.0±1.0
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λ/10
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λ
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ZKN7/H-K4
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MX-30U-A
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30±0.6
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10.0±1.0
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λ/20
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λ
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Fused Silica
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MX-30U-B
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30±0.6
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10.0±1.0
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λ/10
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λ
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Fused Silica
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MX-60B-A
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60±0.8
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20.0±1.2
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λ/20
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2λ
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NBK7A/H-K9L
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MX-60B-B
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60±0.8
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20.0±1.2
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λ/10
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2λ
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NBK7A/H-K9L
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MX-60Z-A
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60±0.8
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20.0±1.2
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λ/20
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2λ
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ZKN7/H-K4
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MX-60Z-B
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60±0.8
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20.0±1.2
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λ/10
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2λ
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ZKN7/H-K4
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MX-60U-A
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60±0.8
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20.0±1.2
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λ/20
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2λ
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Fused Silica
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MX-60U-B
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60±0.8
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20.0±1.2
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λ/10
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2λ
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Fused Silica
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MX-80Z-A
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80±0.8
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20.0±1.2
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λ/20
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3λ
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ZKN7/H-K4
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MX-80Z-B
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80±0.8
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20.0±1.2
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λ/10
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3λ
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ZKN7/H-K4
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MX-80U-A
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80±0.8
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20.0±1.2
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λ/20
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3λ
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Fused Silica
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MX-80U-B
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80±0.8
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20.0±1.2
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λ/10
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3λ
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Fused Silica
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MX-100Z-A
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100±1.0
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25.0±1.5
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λ/20
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4λ
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ZKN7/H-K4
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MX-100Z-B
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100±1.0
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25.0±1.5
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λ/10
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4λ
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ZKN7/H-K4
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MX-100U-A
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100±1.0
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25.0±1.5
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λ/20
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4λ
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Fused Silica
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MX-100U-B
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100±1.0
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25.0±1.5
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λ/10
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4λ
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Fused Silica
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MX-150Z-A
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150±1.0
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30.0±1.6
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λ/20
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5λ
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ZKN7/H-K4
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MX-150Z-B
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150±1.0
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30.0±1.6
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λ/10
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5λ
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ZKN7/H-K4
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MX-150U-A
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150±1.0
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30.0±1.6
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λ/20
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5λ
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Fused Silica
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MX-150U-B
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150±1.0
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30.0±1.6
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λ/10
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5λ
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Fused Silica
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| · The back surface of our single surface flats is only for viewing the interference pattern.. | |||||
| · All dimensions are in mm unless otherwise specified. | |||||
| · Other size and dual surface optical flats are available upon requests. | |||||
Related Products
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No.1, Jingwei South Road, Jinghe Industrial Park, Gaoling District, Xi'an City
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