A thinner lens, of course, should let more light through, which is important when you are trying to shoot a beam a long distance. Fresnel’s lenses let through 98% of the lamp’s output ...

Making a traditional glass lens requires a lot of experience, skill, and patience grinding a piece of glass to the required shape, and is not for the casual experimenter. Making a glass Fresnel ...

Researchers have fabricated and tested flat lenses called Fresnel zone plates (FZPs), but did so for the first time using only common semiconductor manufacturing equipment, the i-line stepper ...

4.5-nm lines and spaces in HSQ e-beam resist (MIT in cooperation with Raith) RAITH150 Two Applications: Optical delay waveguide written with traxx—a stitch error-free writing mode (Raith USA, New York ...