Tecnottica

OPTICAL FILTERS

SPHERICAL LENSES

FRESNEL LENSES

ACHROMATIC DOUBLETS AND TRIPLETS

LIGHT GUIDES

OPTICAL MIRRORS AND COMMON MIRRORS

ASPHERICAL LENSES ASF

PLASTIC LENSES

FINISHED OPTICAL SYSTEMS

PLANO OPTICS

PRISMS

CYLINDRICAL LENSES

GLASS MOLDED LENSES

REFLECTORS

DOME LENSES

BALL LENSES

Tecnottica Consonni is able to work all optical filter glass coming from the most important worldwide industry leaders such as Schott and Hoya and, with the help of a functional warehouse with a large number of raw materials, Tecnottica can drastically reduce all processing times. These filters are called more properly absorption filters as they are able to select particular bandwidths of the electromagnetic spectrum, excluding all those wavelengths outside of them. For this reason, there are absorption filters optimized for ultraviolet (UV), visible (VIS) and near infrared (NIR and SWIR).

In addition to absorption filters, Tecnottica produces and distributes dichroic interferencial filters also known as dielectric layers filters: this category comprehends all the filters made of a glass substrate, usually borosilicate, on which are deposited metal films with infinitesimal thicknesses. In particular, the number of these layers, their thicknesses and the materials constituting the films variy in function of the desired results, the applications intended use and their physical sizes. These filters are successfully used in the lighting industry for coloring light coming from several sources or for the so-called color conversion (color temperature in Kelvin degrees) and in various industrial sectors.

Dichroic filters can also be built with the aim to act as absorption filters; in particular they differ from these ones for their ability to withstand higher temperatures and increased their frequency selectivity. Within this family belong in fact the so-called low-pass filters, high pass and band-pass ones. The most important areas of application, as for ordinary absorption filters, are ultraviolet (UV), visible (VIS) and near infrared (NIR and SWIR). Tecnottica Consonni is able to handle and work successfully all the listed filter categories, satisfying every customer’s specific needs.

Tecnottica manufactures flat mirrors and works them in various thicknesses from 1 mm to 6 mm, up to the maximum size of 1200 mm x 1800 mm. These dimensions are valid for both optical and common mirrors. There are also available several categories of optical spherical mirrors, concave and convex. Both can be used for example in catadioptric systems, i.e. systems consisting only of optical mirrors, or in hybrid systems, i.e. optical systems consisting of both lenses and mirrors; in this latter case one or more optical mirrors work in combination with other glass elements in order to deviate and simultaneously diverge or focus a beam of light. Spherical mirrors are also in this case built as common mirrors or as optical mirrors, through a metal coating on the front surface. Specifically, concave mirrors have greater application in the lighting industry as the main components of lighting optical systems, and when used in combination with appropriate condenser lenses and lamps are also an essential part of projection systems.

Tecnottica currently have different standard sizes for most common applications, through which we realize spherical mirrors usually consist of a glass substrate, treated successively with a metal layer of aluminum protected with quartz. In agreement with our customer’s needs is possible to use different materials and coatings, such as borosilicate glasses or tempered glasses with dichroic layers depositions. In the latter case the coating is useful for the removal of the infrared component (generated by heat) that inevitably accompanies the visible radiation, which is normally reflected from normal metal mirrors.