[Amen] obtained a microscope whose light source was an incandescent bulb, but the light from it seemed awfully dim even at its brightest setting. Rather than hunt down a replacement, he decided to ...

This relatively simple circuit uses a 6-V DC supply with a PWM current-source configuration to provide efficient, adjustable dimming of a white LED over a wide range, needed to accommodate the unique ...

Leica Microsystems launches the upright microscopes Leica DM4 B and Leica DM6 B for life science research and clinical applications. The two systems succeed the Leica DM4000 B, Leica DM5000 B, Leica ...

The world's smallest LED developed by researchers in Singapore has paved the way for converting existing mobile phone cameras into high-resolution microscopes. A new type of LED, which is smaller than ...