[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 ...