Parabolic mirrors offer excellent correction of spherical aberrations, and are availablein both on-axis and off-axis specifications. On-axis parabolic mirrors producecollimated reflected light, while

Optical windows are used to isolate different physical environments while allowing light to pass relatively unimpeded. The selection of a window should consider the properties of the different optical

This kind of lens is used to increase focal lengths in existing systems. It is more suitable than equi-concave lens if the magnification lies in the range m0.2.We specialize in the production of mediu

All our achromatic doublets are computer optimized to minimize aberrations and coma, and are supplied either multilayer coated or with a single layer anti-reflection coating suitable for the ultra-vio

These lenses have a large range of lengths and are the optimum shape for producingreal images at 1:1 magnification. In a single lens application you should considerusing them in preference to a single

Our ED apochromats use a very high homogeneity ED glass as the center element, fullmulti-coatings on all required surfaces, a fully temperature compensated lenscell, and zonal correcting non-equal int

Ellipsoidal mirrors have two conjugate foci. Light from one focus passes throughthe other after reflection. Ellipsoids collect a much higher fraction of total emittedlight than a spherical mirror or c

Ellipsoidal mirrors have two conjugate foci. Light from one focus passes throughthe other after reflection. Ellipsoids collect a much higher fraction of total emittedlight than a spherical mirror or c

Flat mirrors are smooth and highly polished. The flat surfaces are used for reflecting light. The actual reflecting surface is usually a thin coating of silver, aluminum, or other material. They may b