LENSES

PLASTIC LENSES:

These lenses have been used for a variety of applications. From simple magnifiers, to complete designed systems, Plastic optics are much lower price than that of glass lenses.

Light weight Acrylic, Polycarbonate, and Styrene are the three most commonly used plastics for optical components.

Our capabilities of plastic elements go beyond 20 inch diameter, with the same shapes of glass lenses.

SIMPLE LENSES:

Simple single elements made of glass of fused silica. These lenses come in a variety of forms and shapes having a specific imaging characteristic. These lenses are what make up the beginnings of optical design.

ACHROMATIC LENSES: (Doublets)

These lenses are made from two materials of different refractive indicies and dispersions. They provide much better correction of aberrations than a single element can.

UV and THERMAL STABILITY LENSES:

Fused Silica and Fused Quartz lenses offer improved transmission in the ultraviolet region compared with most crown glasses. Both are able to withstand higher temperature operation and a greater degree of resistance to thermal shock.

Where there is a need for lenses to have good transmission below 250µm, the purer ultraviolet grade fused silica is preferred.

Available in Pl/Cx, Positive Meniscus, Pl/Cc, Negative Meniscus and C/C shapes.

NOTE: Calcium Flouride is available on a special request basis.

INFRARED LENSES:

These simple lenses are made of materials which transmit in the infrared where glass fails. Germanium and Zinc Selenide are commonly used materials.

Germanium lenses are available in Pl/Cx, Pos. Men, and Neg. Men. forms. Germaninum exhibits excellent transmission from 2-12um. It is one of the best materials available for this region of the spectrum.

Zinc Selenide are also available in Pl/Cx, Positive Meniscus and Negative Meniscus.

This material exhibits excellent transmission from 0.63-18µm.

NOTE: Calcium Flouride is available on a special request basis.