Abstract

Telescope with wide Field of View, high optical resolution and continuity of the field of view comprising a spherical primary mirror, wherein a) said telescope is equipped with a system of repartitioning of the Field of View, b) that said system are-partitioning of the Field of View is placed in proximity of the focus of the primary mirror, and is constituted by a secondary mirror composed by n planar reflective surfaces, c) said n planar reflective surfaces are contiguous one to the other and form a continuous multifaceted prismatic reflector, in such a way as to obtain the continuity of the field of view over the whole field, d) said n planar reflective surfaces are followed by a corresponding number of optical cameras that form n portions of immage in n distinct focal planes, e) a collecting and recording element is positioned on each n-th focal plane

IPC Classes  ?

• G02B 5/09 - Multifaceted or polygonal mirrors
• G02B 17/08 - Catadioptric systems
• G02B 23/02 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices involving prisms or mirrors
• G02B 23/04 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices involving prisms or mirrors for the purpose of beam splitting or combining, e.g. fitted with eyepieces for more than one observer
• G02B 23/06 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices involving prisms or mirrors having a focusing action, e.g. parabolic mirror

Abstract

Telescope with wide Field of View, high optical resolution and continuity of the field of view comprising a spherical primary mirror, wherein a) said telescope is equipped with a system of repartitioning of the Field of View, b) that said system of repartitioning of the Field of View is placed in proximity of the focus of the primary mirror, and is constituted by a secondary mirror composed by n planar reflective surfaces, c) said n planar reflective surfaces are contiguous one to the other and form a continuous multifaceted prismatic reflector, in such a way as to obtain the continuity of the field of view over the whole field, d) said n planar reflective surfaces are followed by a corresponding number of optical cameras that form n portions of immage in n distinct focal planes, e) a collecting and recording element is positioned on each n-th focal plane

IPC Classes  ?

• G02B 17/08 - Catadioptric systems
• G02B 23/04 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices involving prisms or mirrors for the purpose of beam splitting or combining, e.g. fitted with eyepieces for more than one observer
• G02B 23/06 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices involving prisms or mirrors having a focusing action, e.g. parabolic mirror
• G02B 5/09 - Multifaceted or polygonal mirrors
• G02B 23/02 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices involving prisms or mirrors

Abstract

The invention concerns an innovative Device and Method to estimate the state of a moving vehicle overflying a certain terrain. The device is composed of a camera oriented toward the terrain, an inertial measurement unit, a device for the processing of images and a device called "Navigation Filter". This filter uses an innovative method to obtain the state estimates of the vehicle. Unlike the methods used in state of the art systems, here only robust and flexible expressions are used, producing accurate state estimates, with no possibility of divergence, with no need for initial state estimates or of a high computational power. The method calculates at first some parameters describing geometrical relationships among points of the trajectory and others on the terrain. These parameters are combined with the estimates of the accelerations to get the estimates of the velocity at a given time and of the gravity acceleration vector. By integration of these estimates, velocity and position profiles are obtained. The state is expressed in a reference system fixed with respect to the terrain. In case digital map of the terrain is available, it becomes possible to estimate the state also with respect to the reference system used in the map.

IPC Classes  ?

• G01C 21/16 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigatedDead reckoning by integrating acceleration or speed, i.e. inertial navigation