Beam expander block


This optical block widens the diameter of a collimated beam of light to 2.5 times its original size or narrows the diameter to 1/2.5 times its original size. This block has a C-mount thread for connecting to another device.


Type No. Effective beam size Weight
A10031 φ8 mm Approx. 43 g

* Supplied: C-mount double male thread ring.
** Designed for wavelength from 400 nm to 700 nm.

Transmittance (Typ.)

Incident light conditions

Dimensional outlines (Unit: mm)

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