Custom Optics

In addition to standard optical components, we can produce a wide variety of custom products in various materials with customer specified tolerances. Please contact us for assistance with your Custom requirements.


Optical Design

We have powerful optical design software which enable us to optimise your custom requirements. Some of the main functions of this software include:
Waveplate Design
Geometric aberration calculations,
Automatic correction with 'adaptive method' and 'damped least squares' methodology,
OTF calculation with 'autocorrelation' and 'DFT' methodology,
Tolerance calculations.


Windows and Wedges

Capability:
Materials: please refer to "Optical Material"
Diameter: 1 - 500 mm
Thickness: as thin as 50um
Flatness: l/20 @ 632.8 nm
Parallelism: up to 0.5 arc seconds
Surface quality: up to 10-5 scratch and dig


Lenses

We stock thousands of radius test pieces for lenses in stock. Our customers will benefit from our large tools inventories because they do not need to pay additional tooling charges, Our large tool stock means we can provide quicker deliveries due to saving time in the fabrication of tools.
Spherical Lens
Cylindrical Lens
Achromatic Lens
Doublet and triplet Lens
Lens Assembly

Materials: please refer to "Optical Material"
Diameter: 1 - 100 mm
Focal Length: 3 - 1,000 mm


Prisms

We can fabricate high precision Penta Prisms (up to 1" at 90° deviation) and Beamsplitter Penta Prisms, Schmidt Prisms, Penta Roof-Angle Prisms, Polygonal Prisms, Porro Prisms, Pechen Prisms, Amici-Dove Prisms, Coupling Prisms, Hollow Retroreflectors,.....are also available ....


Polarising Optics

We specialise in developing, growing and fabricating birefringent crystals, such as YVO4, a-BBO, LiNbO3, MgF2 and Quartz crystals. Many Polarising optical components have been developed based on our birefringent crystals, which include Glan Laser Polarising Prisms, Rochon Polarising Prisms, Polarising Beamsplitters, new Phase Retardation Plates, Achromatic Fresnel Rhomb Retarders, Birefringent Filters and Birefringent Wedges, etc.


Waveplates

With the experience on orientating and fabricating high quality nonlinear optical crystals, we ensure that the orientation of the crystalline axis is precisely maintained from first cut through to final assembly. We have a computerised system to produce large quantities of low-order and zero-order waveplates per month.


Special Coatings

With the combination of advanced coating machines and many experienced coating engineers as well as the latest design techniques, our coating department is able to do a wide range of coatings. The main coatings we provide are listed below. For more information about them, please refer to our coatings pages.

Single Layer MgF2 Anti-Reflectance Coatings
Multilayer Anti-Reflectance Coatings
Multilayer Broad-Band Anti-Reflectance Coatings
Partial Reflective Coatings
      a. All Dielectric Beam Splitter Coatings
      b. Metal Broad-Band Beam Splitter Coatings
High Reflective Coatings (Mirror, Total reflection)
      a.  Dielectric coatings: Narrow-Band, Broad-Band.
      b. Metal Mirrors: Protect-Al, Enhance-Al, Protect-Ag, Enhance-Ag, Protect-Au,            Enhance-Au.
Filter Coatings
       a. Long Wavelength Pass Filter (LWP)
       b. Short Wavelength Pass Filter (SWP)


Inspection Instruments

Our quality control and assurance department sets a series of complete standards for the optical components. Every product is strictly inspected to meet our standards or the specifications required by customers before despatch. Inspection reports and pictures are available upon request. Some of the main inspection instruments are:

0.5 arc second Goniometer
Laser plano Interferometer
Twyman green Interferometer
Pekin-Elmer Lambda 900 UV/VIS/IR Spectrophotometer
Zygo GPI-XP Interferometer(2)
Phase retardation measurement system

Pico-second Nd:YAG laser
40mW He-Ne laser
CW diode pumped Green lasers
Spectroscopic Ellipsometers
Spherometer
Automatic Lens tester