Lenses are the most common form of optic and the one most people are familiar with. From eyeglasses to contact lenses to home telescopes and binoculars, lenses impact our every day life. They are in the cell phones and digital cameras that we use to take pictures of our friends, they are in the DVD players that let us watch our favorite movies, they are in the headlights of our cars, they are everywhere improving the quality of our life. There are many companies capable of making lenses, but not many companies have the full range of capabilities that Nalux has.
Nalux can make lenses that are smaller than 1 mm in diameter, sometimes just tens of microns in diameter, and these are called microlenses and can go into some of the most sophisticated equipment in the world such as the Subaru telescope in Japan. Nalux can make single individual lenses from glass to very exacting tolerances and these lenses can be used in applications such as biodetection equipment for security devices. Or Nalux can make millions of plastic lenses for mass market applications such as the large f-theta lenses (see picture in upper left hand corner of this page) which are half an inch thick and 7 inches long and are used in office printers and copiers.
Nalux can also make them out of some very exotic materials. One area where Nalux is a recognized leader is in ultraviolet applications. Many materials that look clear to the naked eye because they let visible light pass through are not clear to the UV light that we can see. In other words, to visible light many materials are a window but to UV light they are a black wall. Nalux has learned how to work with a variety of UV materials, both glasses and plastics, enabling high energy optical systems because UV light is very energetic.
The lenses can also take many forms. They can be perfectly spherical and most applications fit this description. They can be aspherical, meaning that the surface does not possess a constand radius but that the radius of curvature changes depending on the distance away from the optical axis. The lenses can be more free form or torroidal (saddle shaped) providing optical correction. They can by cylindrical which is beneficial for laser beam shaping. They can be diffractive lenses which do their focusing by using the principles of constructive and destructive interference to bring light to a focus. They can be fresnel lenses, which is a lens that has been telescoped down onto itself. For a better idea of what a fresnel lens looks like, see the blue diagram in the pictures above.
Lenses are made by a variety of processing methods. Mask lithography, diamond milling, and focused ion beam ablation are all used to make very accurate microlenses. Diamond turning is used to make very high quality individual lenses our of glass and some UV plastics. Plastic injection molding is used to make everything from microlenses to diffractive lenses to large f-theta lenses. No matter the type of optic, Nalux has the equipment and expertise to help you with your next project.
NALUX NANO OPTICAL, INC.
65 E.State Street, Suit2000
Columbus, Ohio 43215
c/o Schneider Downs
"Lighting a path to the future with nano-optics."