Color electroholography by three colored reference lights simultaneously incident upon one hologram panel

Color electroholography by three colored reference lights simultaneously incident upon one hologram panel.

A color-reconstruction method for electroholography is proposed in which three colored reference lights, namely, red, green, and blue light-emitting diodes, simultaneously illuminate one hologram plane. Three colored light-emitting diodes are placed at the apexes of a small right-angled triangle. Inasmuch as there is a small gap between consecutive light axes, three colored diffraction lights c...

Tiny colored lights.

418 August 2014 Anesthesiology, V 121 • No 2 418 August 2014 IIn the Neuro/Trauma ICU, the patients were arranged like artwork. Statuesque figures projected their sculptured, angular images in a gallery of haloed subjects suspended in animation. Some were conscious, and some were elsewhere. On this particular dreary day in December, I noticed a group of family members—a mother and two daughters...

The effect of colored lenses upon color discrimination.

Time-division color electroholography using one-chip RGB LED and synchronizing controller.

We propose time-division based color electroholography with a one-chip RGB Light Emitting Diode (LED) and a low-priced synchronizing controller. In electroholography, although color reconstruction methods via time-division have already been proposed, the methods require an LCD with a high refresh rate and output signals from the LCD for synchronizing the RGB reference lights such as laser sourc...

Aversive Learning of Colored Lights in Walking Honeybees

The honeybee has been established as an important model organism in studies on visual learning. So far the emphasis has been on appetitive conditioning, simulating floral discrimination, and homing behavior, where bees perform exceptionally well in visual discrimination tasks. However, bees in the wild also face dangers, and recent findings suggest that what is learned about visual percepts is ...