Abstract: In this paper, a hybrid quasi-optic and analogue beamforming approach is presented, involving an elliptical lens with an active focal plane array at D-band (110-170 GHz). Beamwidth ...

This study introduces a smart mattress based on a spherical lens enhanced plastic optical fiber sensor. UV-fused silica ball lenses are embedded into PMMA plastic optical fibers, which are then ...

\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) A lens has a power of -3.33 dioptres. Calculate the focal length and state what type of lens it is.

University College Dublin (UCD) spin-out company LirOptic is the only Irish company to make it to round eight of the Luminate accelerator programme in New York. LirOptic is seeking to raise €3m ...

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Our picks of the best microscopes for kids encourage children to investigate the world around them, enjoy seeing the world in miniature and develop a love for science and STEM. We've included ...

Selling optical devices or contact lenses without MDA’s approval can lead to fines of up to RM200,000, imprisonment of up to two years, or both. (Envato Elements pic) The Medical Device ...