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Lens / Pickup Tester |
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Sextant Labs introduces
its lens and optical pickup tester based on its successful
Interferometer System. This
single pass arrangement is capable of measuring small aperture (as
small as 0.2mm), high N.A. (as large as 0.85) lenses as well as high
emission angle optical pickups. Versatile
tooling considers all aspects of the measurement task.
A dual carrier provides for two optical disk substrate
simulators and an internal alignment laser allows removal of all coma
inducing tilts. Numerous other features make this tool ideal for the
wavefront analysis of CDROM, 660nm DVD, and the new 410nm DVD optical
heads and high N.A. lenses. |
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Easily Measure -
- High N.A. Lenses
- Optical Pickup Heads
- Collimated Beams
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System
Layout
The Lens Tester measures the test lens
wavefront quality by recollimating light passing through the lens and
steering it into the interferometer head. The three main
components of this tooling are -
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Recollimation Tower
Component
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Kinematic
objective lens mount
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Dual
disk simulator mount
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Tower
retracts for station reconfiguration
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All
components tilt adjustable
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Test Lens Holder Stage Component
- X
Y Z and Tilt adjustable
- Piezo-electric
fine adjust
- Retracts
for easy access
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Precision Source Component
- <
0.010 wave ASTG & COMA
- X
Y and Tilt Adjustment
- Selectable
aperture size
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