PRODUCTS
PRODUCTS
MESSAGES
Products
Aspherical Lenses
Aspheric lenses have its advantages in a range of applications where eliminated spherical aberration or (and) single element design is required. CASTECH offers CNC precision-polished aspherical and acylindrical lenses, with or without anti-reflection (AR) coatings. Our CNC polished aspheric lenses are iteratively ground and polished by a software supported computer-controlled processing center to provide better controlled surface quality, irregularity and focal length deviation.
• Material from DUV to IR
• Custom dimension and shapes
• ?????? ?Diameter from 5 to 200 mm
• ?????? ?Clear aperture: Central 90% of diameter
• ??????? Irregularity : λ/10@632.8nm
• ?????? ?Surface quality: 20-10 S/D
• ?????? ?Centration: ＜3′
• ?????? ?Standard and custom coating options available
• ?????? ?High laser damage threshold
 |
|
|
Taylor Hobson Form Talysurf PGI Measure range: from 0.1 to 200 mm Resolution ratio: 0.8nm |
Taylor Hobson LuphoScan 260 for irregularity measurement Measure range: from 5 to 260 mm High surface accuracy: ±50nm |
Enquiry
Messages
Enquiry
E-mail