Single spherical lenses
Convex lenses are optical imaging components with positive focus length. After going through the convex lens, parallel beam of light becomes convergent.
Single concave lenses spread, optical imaging elements with negative focal length. Collimated beam
of light going through the lens becomes divergent and thus the image obtained is virtual. It can be observed
through the lens in the incident direction of the light, only.
Meniscus (Concave-convex lenses)
One surface of meniscus lenses is concave, while the other – convex one. A meniscus lens is almost always used in combination with other kinds of lenses to build systems with focal length shorter or longer than that of the original lens.
Single cylindrical lenses
Cylindrical lenses are optical imaging components with one of the surfaces being cylindrical instead of spherical. The second surface in this kind of lenses is usually flat. As the cylindrical surface deflects the rays in one direction only, it transforms the point image not into a point as in the case of spherical lenses, but into a line.
Achromats are optical components composed of lenses produced from different materials for correction of chromatic aberrations. An achromat, which consists of two lenses, is called achromatic doublet.
Sets of lenses
We produce mounted as well as not mounted single lenses, cemented as well as not cemented doublets, triplets, and more complicated complete optical sets.
We not only realise purchase orders according to the customer specifications, but make our own calculations, optics designs and mechanics as well.
Kepler telescope expander
The range of our service is as follows:
special custom lenses and sets.
According to customer specification, we can deliver non-standard lenses with significantly higher
optical parameters: 10-5; λ/20 (633nm), for example. Lenses in mountings – also if requested.