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Typical Applications |
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Thin film substrates |
| ·
Cover glass |
| · Optical windows |
| · Monitor wafers |
| · Mirror coating substrates |
| · Optical coating substrates |
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· Touch control panels |
| · LCD |
| · Solar cells |
| · Electroluminescent displays |
| · MEMS and SOI |
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Glass.
Other materials available on
request.
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50mm - 150mm
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125mm
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With Flat
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With 2 Flats
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(also available without
flat)
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Specifications
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Material
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BK7 or Fused Silica
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Diameter Tolerance
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+0.0/-0.1mm
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Thickness tolerance
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±0.2mm
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Clear Aperture
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>80%
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Parallelism
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<1 min
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Surface Quality
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20-10 scratch and
dig
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Wavefront Distortion
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λ/4 per 25mm at 632nm
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Bevel
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< 0.1mm×45°
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Part
No.
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Material
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Size
mm
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Thicknessmm
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Wavefront
distortion
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UTB125154
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BK7
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25.4x25.4
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1.5
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λ/4
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UTB125208
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BK7
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25.4x25.4
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2.0
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λ/8
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UTF125154
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Fused Silica
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25.4x25.4
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1.5
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λ/4
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UTF125208
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Fused Silica
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25.4x25.4
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2.0
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λ/8
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UTB225158
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BK7
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Φ25.4
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1.5
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λ/8
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UTB225208
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BK7
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Φ25.4
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2.0
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λ/8
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UTF225158
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Fused Silica
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Φ25.4
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1.5
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λ/8
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UTF225208
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Fused Silica
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Φ25.4
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2.0
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λ/8
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Note:
Other sizes and coatings are available upon request. |
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The
surfaces can be opaqueor polished on one or both sides
with chamfered edges. Custom wafers can be supplied
to special thicknesses with tight tolerances. Edges
can be optically polished or rounded. Wafer cassette
packaging available.