DuoFokus 1x-2x dual-focus lens and collimator

Parameters	Value
Type	Variable magnification system "collimator + objective" with a common focal plane, changing the diameter of the laser beam without reinstalling the optics.
Spectral range, nm.	1030 – 1100
Magnification b = f '_lens / f' _collimator	-1^X … -2.1^X
Input Beam Numerical Aperture NA @ 1 / e²	<0.1
Max. numerical aperture NA	0.13
Working length, mm	180
Laser power	Up to 3 kW (CW)
Fastening	Thread M58x1, QBH laser fiber connector
Diameter, mm	126
Length, mm	197
Other properties	Same working length for two magnifications 1^x and 2^x. Optical design with diffraction-limited quality. Change of the laser spot size by moving the inner lens without changing the entire lens to avoid dust on the optics when using. At intermediate magnification values - some, up to 15 mm, change in the working length. Compensation of thermal focus shift is possible by moving the movable lens. Other combinations of working magnifications are available upon request. Mechanical design is adaptable. Specifications are subject to change upon request.

Specifications are subject to change upon request.

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