Address: Room 118, Juyuan Zone, Jiading Disctrict, Shanghai, China.
Phone : 86-21-58817880 Fax : 86-21-58817881
Email: sale5@winvow.com
The openness of following case has been allowed by our clients with exception of key parameters, which is only 90% of complete design process.
I. Application
For HeCd laser beam expander
II. Requirements
Applicable wavelength: 441.6 ± 15 nm
Beam divergence angle: 1.0 mrad
Magnification: 10 x
Lens quantity: 3 pieces
Lens facial type: all spherical
Lens material: optical glass
System total length: less than 90 mm
Input largest diameter: 2 mm
Output largest diameter: 20 mm
Spatial filtering: 0.01 mm
III. Features
This non-coaxial optical system require spatial filtering, so inverted Kepler telescope is adopted. Optical input should consider divergence angle of light that laser beam itself release. When design, we take 1/4 of divergence angle of laser as the optimized FOV edge. Beam pattern is fundamental transverse mode.
IV. Result
