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| Diamond Turning |
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| The diamond
turning department was established in 1981 to provide in- house diamond
turning capabilities. The department contains the most advanced diamond
fly cutting and turning machines. These, together with the department's
know-how enable Ophir to achieve the highest levels of accuracy and
surface quality on a wide range of substrates including Ge, Si,
ZnSe, ZnS, ZnS Multispectral , CaF2, GaAs, AMTIR, PMMA, Al and
Cu. |
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The department is equipped with both a single axis fly cutting machine
and dual axis turning machines and also boasts advanced testing equipment
such as Zygo interferometers (including the GPI version), a Talysurf
Profilemeter and a wide variety of unique holographic testing
equipment which enable measurement of both aspheric and diffractive
surfaces.
Ophir can machine reflective and refractive materials, as well as
acrylics and other plastic based materials, round and truncated optical
elements, perfect spherical or complex aspheric and diffractive surfaces.
Paraboloids, ellipsoids and hyperboloids, with on and off axis symmetry,
are all standard demands to the Ophir diamond turning team. With its
decades of diamond turning experience Ophir's team of engineers is
responsible for the manufacture of many highly specialized, customized
elements. The unique strength of the Ophir diamond turning department
stems from our exploration of new production methods. This exploration
enables us to produce one-off and high volume cost-effective aspheric
and diffractive elements to extremely high standards. |
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The years of diamond turning experiences enable our engineers to design, but also to work
together with customers optical design teams to provide alternative
solutions to improve the overall performance of an optical system. |
Capabilities:
Diamond Turning
| Diameter (max.) |
400mm |
| SAG (max.) |
180mm |
| Irregularity ( λ@0.633µ P-V) |
Less than 1/2 Fringe for Ø 150mm |
| Power |
± 0.05% Radius of Curvature |
| Roughness |
30 Å RMS for Ge and Al |
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Capabilities:
Diffractive Lenses
| Groove Width |
Less than 20µm |
| Accuracy of Groove Position |
Less than 20µm |
| Accuracy of Groove Depth |
± 0.05µ |
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