|
SCHOTT North America
|
Cylindrical Lenses
Cylindrical lenses have a spherical radius in one direction only. For over 30 years, SCHOTT Advanced Optics has been producing cylindrical lenses supported by the ability to machine a large variety of custom-made lenses in different sizes with very tight curvature tolerances, as well as small thicknesses. In addition, we also offer high quality in-house coating capabilities.
Benefits
Our development of a special technique allows us to machine lenses with convex radii ranging from 1 mm to 10 mm.
With our long experience in the production of cylindrical lenses, we:
- Have a large quantity of tools available for manufacturing lenses of different radii
- Have the expertise in machining difficult glass types
- Can maintain close curvature tolerance despite small thickness
- Can achieve high precision radii
- Can center in the order of 2 minutes on small rectangular lenses
|
Key Applications
|
Cylindrical lenses are widely used, but not limited to the below applications:
- Laser projection
- Bar code scanning
- Holography
- Optical information processing and computing
- Medical applications
- Anorphometer (cinema 16/9)
- Stretching a point of light into a line
|
Materials Used
|
All types of optical materials can be used, including:
- Optical glass
- ZERODUR® glass ceramic
- Fused silica LITHOSIL®
|
Forms of Supply
|
Lenses can be supplied in 3 forms, namely, coated lenses, uncoated lenses or semi-finished (grinded) lenses.
|
Specifications
|
We can produce cylindrical lenses according to DIN 10110, DIN 3140, or MIL-specs. We can also manufacture customized cylindrical lenses according to customers’ drawings.
- Convex radius from 1 mm to 3000 mm
- Special technique for convex radii from 1 mm to 10mm
- General precision 0.1 % of radius
- Concave radius from 10 mm to 3000 mm
- Surface quality: λ/2 over 100 mm in the direction parallel to the cylinder axis
- Up to 2 λ over 100 mm in the direction perpendicular to the cylinder axis
- Fitting error: defined in consultation with our engineers
- Surface defects: defined in consultation with our engineers
- Micro roughness: standard 5 nm Rq to 2 nm Rq, depending on surface dimensions and material
|
Quality Assurance
|
Our quality control is based on self-checking during production and 100% final inspection. Measuring instruments used include 2D profile measurement (0.2 µm accuracy) and 3D holographic interferometer measurement (λ/2 accuracy). An optional profilometry test (0.1 µm accuracy) is also available.
|
|
Contact
SCHOTT North America, Inc.
400 York Avenue Duryea, PA 18642 USA
 | 570-457-7485 |
 | 570-457-7330 |
E-mail
More contacts
|
