Abstract: An optical system for restoring a natural image combined with a digital image, in order to characterise and highlight the objects represented on the natural image. The optical system includes an objective lens, an eyepiece, a semi-reflective plate, a processing unit, capturing capabilities and restoring capabilities. Other embodiments relate to a method for producing such a digital image.

Abstract: A method for estimating a characteristic atmospheric turbulence parameter, the method including the steps of: training a machine learning model using, as learning data, values of the characteristic parameter with which are associated optical speckle images corresponding to defocused images of one or more stars, and using the trained learning model to estimate the characteristic parameter from input data containing one or more optical speckle images acquired by at least one measuring telescope, where the speckle images correspond to defocused images of one or more stars observed in real conditions by the telescope.

Abstract: An optical system for restoring a natural image combined with a digital image, in order to characterise and highlight the objects represented on the natural image. The optical system includes an objective lens, an eyepiece, a semi-reflective plate, a processing unit, capturing capabilities and restoring capabilities. Other embodiments relate to a method for producing such a digital image.

Abstract: A method for acquiring an image of a celestial body, including: using an apparatus including a hollow body into which light rays originating from the observed celestial body penetrate, arranging, in the hollow body, an optical system having an optical axis, the optical system configured so that the light rays form, in an image focal region, an image of the observed celestial body, arranging in the hollow body at least first and second matrix arrays of optical sensors configured to acquire the image of the celestial body formed in the image focal region, where the matrix arrays are of different designs suitable for observing celestial bodies of different natures, selecting one of the matrix arrays and placing it in the image focal region, the other matrix array remaining outside of the image focal region, the matrix array being selected depending on the nature of the observed celestial body.

Abstract: An image acquisition method includes defining a first optical sensor configuration of a matrix to acquire the image of a first celestial body of first nature, the first configuration having a plurality of unit pixels, defining at least one second optical sensor configuration of the matrix to acquire the image of the second celestial body of second nature, the second configuration having a plurality of macro-pixels formed by groupings of unit pixels, and selecting one of the optical sensor configurations, the selection being made according to the nature of the observed celestial body.

Abstract: A telescope that includes a hollow body, an optical system and mirror positioned in the hollow body,—a device for adjusting tilt and the position of the mirror including a carriage translatably movable in the hollow body, a mirror support plate rigidly connected to the carriage by a hinge, where the carriage is translated by a screw/nut mechanism operated by an adjustment button mounted capable of rotating in a housing portion, the adjustment button is arranged such that rotation of the button causes the carriage to be translatably moved, the adjustment button is associated with a stop member designed to cooperate with a complementary stop member arranged in the housing portion so as to limit button rotation and carriage movement, and at least one actuator movably mounted in the carriage that on the support plate such that moving the actuator changes the tilt of the plate.

Abstract: The invention relates to an optical system for restoring a natural image combined with a digital image, in order to characterise and highlight the objects represented on the natural image. The optical system includes an objective lens, an eyepiece, a semi-reflective plate, a processing unit, capturing means and restoring means. The invention also relates to a method for producing such a digital image.

Abstract: The invention relates to an optical system for restoring a natural image combined with a digital image, in order to characterise and highlight the objects represented on the natural image. The optical system includes an objective lens, an eyepiece, a semi-reflective plate, a processing unit, capturing means and restoring means. The invention also relates to a method for producing such a digital image.

Abstract: The invention relates to an optical system for restoring a natural image combined with a digital image, in order to characterise and highlight the objects represented on the natural image. The optical system includes an objective lens, an eyepiece, a semi-reflective plate, a processing unit, capturing means and restoring means. The invention also relates to a method for producing such a digital image.

Abstract: The invention relates to an optical system for restoring a natural image combined with a digital image, in order to characterise and highlight the objects represented on the natural image. The optical system includes an objective lens, an eyepiece, a semi-reflective plate, a processing unit, capturing means and restoring means. The invention also relates to a method for producing such a digital image.