Product Description

Mirror sets appropriate for use with beam diameters up to *5mm require an increase in mirror separation in comparison with smaller mirrors. These changed optical conditions are catered-for by the STSL series. These single-element lenses are designed to represent the best achievable compromise for on-axis and off-axis aberrations, field flatness and F-theta characteristics, obtainable using single-element spherical-surface designs of (standard) *8mm diameter and 3mm edge thickness.

Part Number
Focal Length (mm)
Field Size (mm)
Working Distance (mm)
Focused Beam Diameter (um)
Average
Diffraction Limit
STSL**0.******0
*5.2
*0x*0
*4.*7
**1
*6
STSL**0.*******0
**1.3
*0x*0
**1.*9
**1
**6
STSL**0.********5
**9.1
**5x**5
**0.*9
**9
**1
STSL**0.********5
**9.4
**5x**5
**3.*6
**0
**5
STSL**0.********0
**8
**0x**0
**2.*6
**3
**1
STSL**0.********0
**2.7
**0x**0
**0.*7
**5
**5

Raw materials properties:
Only lasergrade ZnSe is used in the fabrication of lenses.

Transmission: >*9.6% when AR/AR coated for *0.6μm

Coations:
Standard AR/AR coatings are very low absorption, which helps to minimize thermal lensing effects when used with high intensity laser beams.

Laser damage threshold:
***0W/mm (+/**0%)  This is equivalent to **8km/cm2 at 5kw laser power.