SPDT is a Ultra-precision Machining Process, which delivers surfaces with Form Tolerances within Sub-Micron Accuracies & Roughness within few Nanometers


How   SPDT  is  Achieved ?  

SPDT Process is a Near Ideal Marriage of:

Interaction of Precision Diamond Tool, Controlled Lathe Operation, Deterministic Precision Material Removal, Strict Machining Protocols, Meticulous Surface Characterization

Why SPDT is Required ?

To Deliver Systems with Budgets on Weight, Volume & Foot-Print.
For Neo-Compact Precision Modules.
To Deliver Surface Quality: Sub-Micron Form & Figure Error and Single Digit Nanometric Finish. 

SPDT Deliverables & Profiles

Surfaces with Profiles:

⫸ Flats

⫸ Rotationally Symmetric Profiles (Spherical, Oblong & Prolate Ellipsoids, Parabolic,  Hyperboloids)

⫸ Off-Axial Components

⫸ Torics (with Fast & Slow  Tool Servo Accessory)

⫸ Lenslet Arrays

infra red optics
infrared Optics
thermal imaging

Materials, Measurement & Accuracies

SPDT Processable Materials

Metals: Aluminum & Alloys, Brass, Bronze, Copper & Alloys, Nickel & Electroless Nickel, Tin, Antimonoy, Silver, All Non-Ferrous Metals, Low-Carbon Steels & Special High HRC Steels.

Crystals & Glasses: Germanium, Silicon, CaF2, ZnS, ZnSe, GASIR, Chalcogenide Glasses, AMTIR, HgCdTe, InSb

Polymers: PMMA, Zeonex, PolyCarbonate, PolyStyrene, ULTEM

SPDT Surfaces Measurement

Dimensional Metrology: Coordinate Metrology Machine: Accuracy up to 0.9 μm Height Gauges, Thickness monitors, Micro Meters etc.

Surface Metrology: Spherical Profiles: Phase Shift interferometer (upto 150 mm Dia)

Aspheric Profiles: Contact Profilometer (upto 200 mm Dia)

Measurable Parameters: Form – Figure (Sub-μm) – Finish (nm)

SPDT Applications

  • Bio Metrics
  • CD Player Optics
  • Hi – Precision  Modules
  • Intra Ocular Lenses
  • Low Vision Aids
  • Cell Phone Optics
  • Mould Inserts
  • Orthopedic Joints
  • Progressive Lenses
  • Space Cameras
  • Space Optics
  • Forensics
  • Security Systems
  • Space Telescopes
  • Virtual Reality Systems
  • Zoom  Camera  Optics

Our Range of Products