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Edmund Optics' new state-of-the-art environmentally controlled aspheric manufacturing cell houses advanced aspheric grinding and polishing capability coupled with MRF finishing technology. This new capability allows us to produce high departure aspheric geometries that can be manufactured rapidly and cost effectively in glass, ceramic or crystalline materials.
World-class metrology platforms are integrated and networked into each machine to perform real time in process error correction dramatically reducing iterative, time consuming manufacturing steps.
The new manufacturing cell targets customers interested in rapid prototypes to medium volume requirements.
Contact us today at for your custom aspheres! Off-the-shelf TECHSPEC® Precision Aspheric Lenses are also available.
Features
- Large aspheric departure from best fit sphere is no longer a problem
- Surface profile can be directly programmed using the aspheric polynomial
- Synthetic pad polishing on Schneider SCPA machine platform significantly reduces polishing time
- On board machine metrology compensates for tool wear and process drift
- Universal tooling concepts dramatically reduce NRE and tooling charges
- All metrology is networked into all machining platforms for real time process correction
- All aspheric profiles are certified using a Taylor Hobson PGI 1240 profilometer
- Manufacturing area environmentally controlled to ±1°F
EO Aspheric Equipment
QED Q22-Y MRF
- Metrology Limited Surface Correction to λ/20 or better
- Spherical, Aspherical, Toroidal and Flat surfaces
- Low subsurface damage leads to better High Energy
- Laser Coatings
Schneider SCGA 121 Aspheric Surface CNC Generator
- High contour accuracy
- High stock removal
- Excellent process stability
Schneider SCPA 121 Aspheric CNC Polisher
- Automatic determination of removal profile
- Automatic dressing of tools
- Integrated correction technology
Taylor Hobson Talysurf PGI 1240 Profilometer
- 200mm traverse unit with 0.11μm/200mm straightness
- 0.8nm vertical resolution
- 1/25 wave repeatability
- 1nm RMS noise floor
Technical Data
| ASPHERIC LIMITS | ||
| STANDARD | HIGH PRECISION | |
| Diameter (mm) | 15-120 | 15-120 |
| Length (mm) | 10.5-85 | 10.5-85 |
| Width (mm) | 10.5-85 | 10.5-85 |
| Dimensional Tolerances (µm) | 25 | 5 |
| Center Thickness Tolerance (µm) | 100 | 35 |
| Wedge Tolerance (µm) | 75 | 25 |
| Surface Quality | 60-40 | 10-5 |
| Radius Limits (mm) | LRC Limited | LRC Limited |
| Concave | >30.0 | >30.0 |
| Convex | >5.0 | >5.0 |
| Radius Tolerance (%) | 0.1 | 0.05 |
| Total SAG (mm) | <25 | <25 |
| Aspheric Surface Accuracy (wave) | 1/4 | 1/10 |
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