M174_F-theta

F-theta lens are commonly used in laser scanning systems that require a flat image plane and high resolution. By introducing a specific amount of barrel distortion in the lens, the image height of the F-Theta lens is proportional to the scanning angle.

Article number	M174_F-theta
Design wavelength [nm]	355
Effective focal lengt[mm]	174.7
Max. entrance beam[mm]	8.0
Optical scan angle [±°]	25.4
Scan length [mm] (1 mirror system)	22.1
Aperture stop distance [mm]	154.2
Working distance [mm]	220.0
Scan area for a 2 mirror system with mirror distance from lens housing for mirror 2 / mirror 1	109x109 15.1/28.1
Max. telecentricity error [°]	9.5
Total transmission [%]	98
Lens material	fused silica
LIDT (coating)	1.0 J/cm² per 1ns pulse at 50Hz 1.0 MW/cm² cw
SP and USP usable [P/O]	û