Refractor to reflector, Schmidt-Cassegrain to Maksutov-Cassegrain - this is everything you need to know about the different types of telescopes.

Carson Optical’s RP-400 is a 3.54-inch f/11 refractor with fully coated optics. The scope’s equatorial mount sits on a heavy-duty aluminum tripod. The unit comes with 10mm and 20mm Plössl ...

New non-mechanical laser steering technology Date: November 19, 2018 Source: Naval Research Laboratory Summary: Steerable electro-evanescent optical refractor (SEEOR) chips take laser light in the ...

You don't have to be in the hot desert or on a long road in the summer to see an optical phenomenon - also known as a mirage - thanks to new scientific innovations. Straight out of sci-fi novel ...

Steerable electro-evanescent optical refractor (SEEOR) chips take laser light in the mid-wavelength infrared ... Journal of the Optical Society of America DOI 10.1364/JOSAB.35.000C29.

[w] www.istar-optical.com This product appeared in the May 2012 New Products page. Istar’s 127 f/12 R30 Anastigmatic Doublet lens offers 5 inches of aperture to refractor builders.

Scientists at the U.S. Naval Research Laboratory have demonstrated a nonmechanical, chip-based beam steering technology that offers an alternative to mechanical gimbal-style laser scanners, which the ...