Product range LINOS F-Theta-Ronar

Optical glass lenses
For all major applications a wide variety of lenses exist with various focal lengths ranging from 100 mm to 420 mm and for different wavelengths from 532 nm to 1064 nm.

Fused-silica lenses
Qioptiq has developed a range of sophisticated F-Theta-Ronar scan lenses made of fused silica for high-power and short-pulse laser material processing. Fused-silica lenses provide minimized thermal focus shift and higher resistance when working at high power density. These lenses are usable for wavelength ranges of 340-360 nm, 440-460 nm, 515-540 nm, 1030-1080nm and 1900-2000nm. A specially developed coating achieves very low reflection and absorption values. The optical designs minimize damage due to back reflections onto the scanning mirrors and internal reflections. The LINOS fused-silica F-Theta-Ronar lenses are suitable for fiber- and disk lasers as well as shortpulse and ultra-short- pulse lasers.

Telecentric lenses
With telecentric lenses the beam impact angle on the work piece is nearly perpendicular over the entire scan field.
The maximum scan field of telecentric lenses cannot exceed the lens diameter. On the other hand the spot roundness and the impact angle is constant over the scan field. Qioptiq offers telecentric F-Theta-Ronar lenses made of fused silica and of optical-glass/fused silica combination.

Coating
Coatings are applied on each lens surface to maximize the transmission of the complete optical system like F-Theta-Ronar lenses or beam expanders. The additional challenge for coatings in laser material applications lies in a high damage resistance. All our coatings are analyzed for laser-damage threshold values. The tests are conducted according to the standardized test method DIN EN ISO 11254-2, a multi-pulse procedure (S on 1) with given pulse lengths:

There is no garantee that the same values will result under the customers’s conditions of use.

Customized solutions
In addition to our existing LINOS F-Theta-Ronar lenses Qioptiq offers customized solutions from adapted wavelength shift of standard lenses up to complete new designs. Please contact Qioptiq to discuss your requests with our specialists.