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Aspheres

MLOPTIC manufactures high precision aspherical lenses with different types of glass in rotationally symmetrical shape to meet your specific requirements.

Detailed Introduction

MLOPTIC manufactures high precision aspherical lenses with different types of glass in rotationally symmetrical shape to meet your specific requirements. We use a variety of optical metericals, such as glass, quartz and crystal for UV, VIS and IR applications.         

Technology and manufacturing equipment:
CNC grinding, CNC polishing,MRF
Aspheres from glass and quartz:

  • Convex and concave aspheres, bi-aspheres possible

  • Diameters from 5mm to 280mm

  • Minimum concave radius is around 50mm at present

  • Rotational symmetric aspheres (Cylindrical,toric and free forms are not  yet available)

  • Typical materials from Schott, Ohara, Hoya, CDGM and corning.

Aspheres from IR materials:

  • Convex and concave aspheres, bi-aspheres possible

  • Diameters from 5mm to 280mm

  • Materials: ZnS, ZnSe, Ge, Si, CaF2, metal mirrors

Manufacture Ability:

Shape:

Convex aspheres, bi-aspheres

Diameter:

5.0 mm-280.0 mm

Minimum Radius:

Convex 10 mm; Concave 50 mm

Material:

Optical glass, quartz glass, CaF2, Ge, Si, ZnS, metal mirrors

Diameter tolerance

+0.00 / -0.02

Surface Quality

10/5

Radius(convex) 

10mm - ∞ 

Radius(concave) 

50mm - ∞ 

PV 

0.1μm 

MLOPTIC offers professional metrology, including surface profilers and interferometers to verify optics meet the form error specification. We inspects 100% of all optics and test data is provided with prototype orders.

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Tactile Measurement: 

  • Taylor Hobson PGI1250

  • Measurement up to 200mm, stitching of high departure lenses possible        

  • Highest precision offered for high departure aspheres is P-V 0.15μm

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Non-tactile Measurement:

  • Taylor Hobson LUPHO Scan

  • Fast non-contact 3D interferometric scanning of aspheric optics.

  • Maximum tested element dimensions:            

  • 260mm (Diameter) × 75mm (height)

  • Accuracy (P2V): ±50nm

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Interferometric Measurement:

  • 6 inch Sub-aperture Stitching Interferometer (SSI) for precision optics.

  • To measure high numerical aperture, large clear aperture parts up to 300 mm.

  • Transmitted Wavefront testing

  • QED SSI is combined with correction on MRF polishing.