+1 520.639.8195
FIZEAU INTERFEROMETER
OPTICAL ACCESSORIES

Äpre Instruments supplies a complete line of high quality laser Fizeau reference optics. These transmission spheres and transmission flats are manufactured in the United States and fit into the industry standard bayonet mount. They are designed, manufactured and qualified to measure standard pitch polished surfaces and system testing wavefronts. They are also suitable for CNC spot polishing processes that demand smooth reference surfaces. Each optic comes with a protective storage case and quality certification.

Contact us to select the right reference optics for your application.

4" Transmission Spheres

Äpre P/N λ/10
Äpre P/N λ/20
f/#
Radius (mm)
O-000763
O-000764
f/0.65
38.5
O-000765
O-000766
f/0.75
41.8
O-000767
O-000768
f/1.5
123.2
O-000769
O-000770
f/3.5
311.1
O-000771
O-000772
f/7.6
751.1
O-000773
O-000774
f/11
1083.6

6" Transmission Spheres

Äpre P/N λ/10
Äpre P/N λ/20
f/#
Radius (mm)
O-000789
O-000790
f/0.75
56.9
O-000791
O-000792
f/1.5
183.1
O-000799
O-000800
f/2.4
318.6
O-000793
O-000794
f/3.5
498.0
O-000795
O-000796
f/7.4
1083.6
O-000795
O-000796
f/7.4
1083.6
O-000797
O-000798
f/11
1637.5

Transmission Flats

Äpre P/N λ/10
Äpre P/N λ/20
Diameter
O-000775
O-000776
4"
O-000803
O-000804
6"

4" Convergers

Äpre P/N λ/10
Äpre P/N λ/20
f/#
Radius (mm)
O-000777
O-000778
f/25
2546.0
O-000779
O-000780
f/35
3429.6
O-000781
O-000782
f/45
4396.05

4" Divergers

Äpre P/N λ/10
Äpre P/N λ/20
f/#
Radius (mm)
O-000783
O-000784
f/25
2546.0
O-000785
O-000786
f/60
6054.0
O-000787
O-000788
f/160
16462.6



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