公开(公告)号：US20240384588A1

公开(公告)日：2024-11-21

申请号：US18578975

申请日：2022-07-14

Applicant: BEA SA

Inventor： Jean-François KLEIN ,  Alain Louis ZAMBON ,  Eric Jean Herman Marie Léon LENAERTS ,  Benjamin Jacques Charles Fernand LEFEVRE

IPC: E05F15/74 ,  E05F15/73 ,  G01S7/481 ,  G01S7/4865 ,  G01S17/88

Abstract: A sensor for automatic doors or gates that works based on a pulse-echo evaluation comprises a rotating mirror having at least three different emitting mirror facets, where the rotational axis lies normal to a reference plane, and at least one light-pulse generation unit generating infrared pulses having a certain beam width. The pulses are sent along two different emitting optical paths, each having at least one optical component, where the emitted pulses can be reflected by the mirror facets, and the emitting optical path defines an incident pulse direction of the emitted pulses. The reflected pulses establish a scanning field, where each of the reflected pulse directions defines a reflected beam projection on the reference plane (R), where the angle (IA) between the projections of the incident beams, namely the projection of the incident pulse directions onto the reference plane, is between 30° and 160°. The rotational axis (A) lies on the bisectrix (BS) of the beam projections between the intersection plane and the optical component closest to the rotating mirror along the optical path. The rotating mirror and its rotational axis (A) are set such that each reflected beam projection from both incident optical paths has an innermost reflected pulse (IB) at least parallel to the bisectrix (BS) or even crossing the bisectrix (BS) on the side of the scanning field. The scanning field is delimited by two outermost reflected pulses (OBa, OBb), where the scanning field therebetween has an angular range of more than 150°. The rotating mirror has the same amount of receiving mirror facets as the emitting mirror facets. The reflected pulse is echoed back by an object in the scanning field where the echoed pulse is reflected by the receiving mirror facet and then received by a receiver such that it is distinguishable over which emitting optical path the emitted pulse of the echoed pulse was sent.

公开(公告)号：US20230272663A1

公开(公告)日：2023-08-31

申请号：US18017880

申请日：2021-07-28

Applicant: BEA SA

Inventor： Jean-François KLEIN ,  Sébastien van Loo

IPC: E05F15/73 ,  E05F15/611

CPC classification number: E05F15/73 ,  E05F15/611 ,  E05Y2400/44 ,  E05Y2600/46 ,  E05Y2900/132

Abstract: The invention relates to an automatic swing door (10, 100), comprising a door controller (22, 122), 10 further comprising a door leaf arrangement (12, 112) that is pivotably attached to a door frame (30), where the door leaf arrangement (12, 112), comprises a door leaf (14, 114) that has a following face (15b) that is facing to the door opening (20) and a leading face (15a) that is facing away from the door opening (20), a hinged edge (15d) and a main closing edge (15c) that lies opposite to the hinged edge (15d), the door leaf arrangement (12) comprises a leading face sensor (16) that is attached to the 15 leading face (15a) of the door leaf (14), where the leading face sensor (16) provides a scanning field that at least covers a zone that lies next to the leading face of the door leaf.