Telescope for visualisation of solar corona

Telescope for visualisation of solar corona

Optical parameters of the 90mm aperture objective with focal length of 855mm are optimized for the wavelength of hydrogen H-alpha line. The lens barrel is equipped with highly precise focussing system which enables both visual and photographic usage of the equipment. The design is optimized in order to minimize the diffuse light. This is highly important because of extreme contrast between the inner and outer corona (about 1:100000). The diffuse light is minimized by means of a carefully designed system of diaphragms. Because the equipment is designed for using during the total solar eclipse expeditions the mechanical construction is as robust as possible.

For more information contact antos@fme.vutbr.cz