If Yoda wielded a vacuum cleaner instead of a lightsaber, it would be this one. Launching Wednesday, Dyson's new vacuum is its most futuristic yet. The Dyson V15 Detect is a cordless vacuum that comes ...

Benefiting from a high throughput off-axis design, these beam expanders provide an unobstructed output and highly efficient transmission. The reflective design of these beam expanders is achromatic ...