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4 results about "Angular aperture" patented technology

The angular aperture of a lens is the angular size of the lens aperture as seen from the focal point: a=2arctan(D/2/f)=2arctan(D/2f) where f is the focal length D is the diameter of the aperture.

VEHICLE GLAZING WITH OPTICAL DEVICE FOR LIDAR

PendingFR3170376A1Optical axisLight beam
The present invention relates to a glazing system comprising a vehicle glazing (100), the glazing having a transmission window (111) in a near-infrared range and a diverging lens (20) having a first surface (21) and a second surface (22), opposite the first surface, the second surface (22) being intended to be oriented towards the outside of the glazing, at least one of said first and second surfaces, the diverging lens (20) having a first surface (21) and a second surface (22) being structured, the structured surface comprising a set of structures, in relief, concentric around said optical axis, and according to a radial section of the structured surface, the set of structures form an alternation of facets (210) and counter-facets (211).The diverging lens (20) is arranged and configured so as to receive said emission beam (70) from the LIDAR on the facets of the structures and all or part of the structures, called reference structures, each have facets at an angle Ak with respect to said plane of the diverging lens, the angle Ak of ​​the facets in absolute value increases with the radial distance, each having a height which varies with distance from the optical axis such that the external vertical angular aperture VFOV2 is greater than the initial vertical angular aperture VFOV1 and the external horizontal angular aperture HFOV2 is greater than the initial horizontal angular aperture HFOV1. Figure for the abbreviation: Fig. 1.
Owner:SAINT GOBAIN VITRAGE SA

Vehicle glazing unit with an optical device for lidar

PCT designated stageWO2026132533A1Glass/slag layered productsOptical axisLight beam
The present invention relates to a glazing system comprising a vehicle glazing unit (100), the glazing unit having a transmission window (111) that transmits in a near-infrared range and a divergent lens (20) having a first surface (21) and a second surface (22) opposite the first surface, the second surface (22) being intended to be oriented outward from the glazing unit, wherein at least one of the first surface and the second surface of the divergent lens (20) is structured, the structured surface comprising a set of raised structures and, in cross section through the structured surface, the set of structures forming alternating facets and counter-facets. The divergent lens (20) is arranged and configured so as to receive the LIDAR emission beam (70) on the facets of the structures and all or some of the structures, referred to as reference structures, have facets each having an angle Ak relative to the plane of the divergent lens, the angle Ak of the facets in absolute value increasing with distance from the optical axis, each reference structure having a height that varies with distance away from the optical axis such that the external vertical angular aperture VFOV2 is greater than the initial vertical angular aperture VFOV1.
Owner:SAINT GOBAIN SEKURIT FRANCE

VEHICLE GLAZING WITH OPTICAL DEVICE FOR LIDAR

PendingFR3170377A1Optical axisLight beam
The present invention relates to a glazing system comprising a vehicle glazing (100), the glazing having a transmission window (111) in a near-infrared range and a converging lens (20) having a first surface (21) and a second surface (22), opposite the first surface, the second surface (22) being intended to be oriented towards the outside of the glazing, at least one of said first and second surfaces, the converging lens (20) having a first surface (21) and a second surface (22) being structured, the structured surface comprising a set of structures, in relief, concentric around said optical axis, and according to a radial section of the structured surface, the set of structures form an alternation of facets (210) and counter-facets (211).The converging lens (20) is arranged and configured so as to receive said emission beam (70) from the LIDAR on the facets of the structures and all or part of the structures, called reference structures, each have facets at an angle Ak with respect to said plane of the converging lens, the angle Ak of ​​the facets in absolute value increases with the radial distance, each having a height which varies with distance from the optical axis such that the external vertical angular aperture VFOV2 is greater than the initial vertical angular aperture VFOV1 and the external horizontal angular aperture HFOV2 is greater than the initial horizontal angular aperture HFOV1. Figure for the abbreviation: Fig. 1.
Owner:SAINT GOBAIN SEKURIT FRANCE

Vehicle glazing unit with an optical device for lidar

PCT designated stageWO2026132537A1Glass/slag layered productsOptical axisLight beam
The present invention relates to a glazing system comprising a vehicle glazing unit (100), the glazing unit having a transmission window (111) that transmits in a near-infrared range and a convergent lens (20) having a first surface (21) and a second surface (22) opposite the first surface, the second surface (22) being intended to be oriented outward from the glazing unit, wherein at least one of the first surface and the second surface of the convergent lens (20) is structured, the structured surface comprising a set of raised structures and, in cross section through the structured surface, the set of structures forming alternating facets and counter-facets. The convergent lens (20) is arranged and configured so as to receive the LIDAR emission beam (70) on the facets of the structures and all or some of the structures, referred to as reference structures, have facets each having an angle Ak relative to the plane of the convergent lens, the angle Ak of the facets in absolute value increasing with distance from the optical axis, each reference structure having a height that varies with distance away from the optical axis such that the external vertical angular aperture VFOV2 is greater than the initial vertical angular aperture VFOV1.
Owner:SAINT GOBAIN SEKURIT FRANCE