Researchers at the University of Colorado have developed a lens type (and a steering prism) capable of electrofocusing without moving parts with a spectral passband from 400 to 5000 nanometers and have experimentally demonstrated at wavelengths of 588, 1550 and 3000 nm . The lens is based on the electrowetting technique, where changing the voltage changes the wettability of the liquid lens to change its contact angle, which in turn changes its shape. The concept of electrowetting is not new in itself, it is the wide spectral range. Applications include imaging, spectroscopy, microscopy, lidar and adaptive optics for continuous monitoring. This lens contains two liquids with different refractive indices. The two fluids are a Room Temperature Ionic Liquid (RTIL) and dodecane known as n-propyl-n-methylpyrrolidinebis (fluorosulfonyl) imide (Pyr133a). Electro-wetting lenses fabricated on Indium Tin Oxide (ITO) substrates are suitable for wavelengths from visible to 2000 nm while lenses fabricated on silicon substrates are suitable for medium wave infrared (MWIR). The lenses have diopters of 7, 19 and 23 at 588, 1550, and 3000 nm, respectively. An electrowetting deflection prism based on a fluid permeable from visible to mid-wave infrared An electrowetting steering prism operating at 1550 nm was also fabricated to deflect the beam beyond an angle of 1.12 ° (which could then be easily amplified with other conventional optical elements or with different nonpolar liquids instead of dodecane) . Polyethylene wax (PE WAX), also known as polymer wax polyethylene wax. It has been widely used because of its excellent cold resistance, heat resistance, chemical resistance and wear resistance. In normal production, this part of wax as an additive can be directly added to polyolefin processing, which can increase the luster and processing performance of the product. As a lubricant, it has stable chemical properties and good electrical properties. The solubility of polyethylene wax and polyethylene, polypropylene, polyvinyl acetate, ethylene-propylene rubber and butyl rubber is good. It can improve the fluidity of polyethylene, polypropylene and ABS and the demoulding property of polymethyl methacrylate and polycarbonate. For PVC and other external lubricants, polyethylene wax has a stronger internal lubrication. Polyethylene Wax,,Polyethylene Waxes,Polyethylene Wax Emulsion Hengshui Yimei New Material Technology Co.,Ltd , https://www.yimeipewax.com
July 03, 2024