LEICESTER, U.K.—Cooke Optics has announced that its new 60mm, 90mm and 150mm Macro/i FF 1:1 lenses are now available to order as a full set. The set of three spherical complimentary macro lenses are ...
Filmmaker Ryan Freeman has asked the unaskable: can you compare a $30,000 Cooke anamorphic lens with a $1,000 Zeiss spherical lens? Well, to insert a bit of a spoiler here, no, you can't. Cooke makes ...
Sapphire crystal (Al2O3) is a sought-after substrate for a range of high-precision applications; for example, for aerospace and aeronautical vehicles and high-powered laser applications, such as Er: ...
Camera lenses are often described as being 'aspherical', but what does it mean, and is it the only way to design a lens? A lot of lenses are spherical, though. What we mean by “spherical” is usually ...
In the early 1990s, the Opticam ® SM machine was developed for use in the analysis of microgrinding at the Center for Optics Manufacturing, University of Rochester. In mid-1992, a multi-axis flexible ...
Optometrist, clinic supervisor at Aston University, and Alcon professional education faculty member, Hatim Hassanali, shares ...
Aspheres allow designers to build smaller, lighter and simpler optical systems, and can be found in everyday products. Edwin Diaz provides a back-to-basics guide to the technology. You may not realize ...
Thirty patients were randomised to receive one of six lens implants including three aspheric lenses and their spherical counterparts. Pre and postoperative testing was carried out including visual ...
Total, corneal, and internal aberrations were measured using ray-tracing technology in 23 eyes implanted with aspheric (Tecnis ZA9003) IOLs, and in 25 eyes implanted with spherical (AcrySof SA60AT) ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback