Abstract: This optical assembly comprises a securing support (40), an optical focusing element (44) and a reflecting mirror (42) which is suitable for reflecting an incident light beam (F1) towards the optical focusing element (44) in order to focus it onto an illumination plane (P). The reflecting mirror (42) is movable relative to the securing support (40). The optical focusing element (44) is movable relative to the securing support (40). The assembly includes elements for connecting the focusing element (44) to the mirror (42) for synchronised displacement of the two of them. The assembly is useful in devices for illuminating operating fields.

Abstract: This optical assembly comprises a securing support (40), an optical focusing element (44) and a reflecting mirror (42) which is suitable for reflecting an incident light beam (F1) towards the optical focusing element (44) in order to focus it onto an illumination plane (P). The reflecting mirror (42) is movable relative to the securing support (40). The optical focusing element (44) is movable relative to the securing support (40). The assembly includes elements for connecting the focusing element (44) to the mirror (42) for synchronised displacement of the two of them. The assembly is useful in devices for illuminating operating fields.

Abstract: A table comprising a base (2), a vertical pillar (4), a horizontal platform (5) provided with a seat (9) and mounted on the pillar, and elements for moving the platform relative to the pillar, the elements comprise, a first rail (12), secured to the pillar, a second rail (13) parallel to the lower rail, integral with the seat and mobile in translation therewith relative to the first rail, and a carriage (15) mounted freely sliding on the first fixed rail from one end thereof to the other, the second rail being mounted sliding relative to the carriage and thereon; on each rail (12, 13) a shoe is mounted sliding, said shoe being mechanically integral with the carriage (15).

Abstract: The assembly of two parts, one of which is fixed and the other of which is removable, includes automatic locking and unlocking elements for securing the removable part to the fixed part. The unlocking elements are mounted on the removable part and are integrated inside it. The removable part has a male end adapted to be received in a complementary female end of the fixed part, snap-fastening against a resilient stop latch inside said female end. The male end is secured to a longitudinal spindle extending inside the removable part and terminated by a handle for manual actuation, thus enabling the male end to be turned in order to unlock the assembly of the two parts. The male end is returned automatically to its locking position by a return spring.

Abstract: The lighting device for lighting a lighted field comprises a light source having first and second lighting modules. The lighting modules are adapted to light lighted domains of the lighted field. The lighted domains form an overlap zone, and each lighting module defines an overlap volume. The device includes detector means adapted to detect a zone of reduced lighting in the overlap zone, and control means adapted to increase the light flux from said second lighting module when the detector means detect a zone of reduced lighting. The invention is applicable to lighting devices used in operating theaters.

Abstract: The structure is suspended from the ceiling of a room in a hospital or a clinic and includes a substantially vertical arm adapted to support medical equipment such as a cart above the floor. For this purpose, the structure has a support column for supporting the medical equipment, the column being connected to the vertical arm, and an intermediate support on which said medical equipment is loaded and which is hinged to the column and forms an external cover therefor. The structure also has means for adjusting the position of the intermediate support relative to the column so as to correct departures of the on-board equipment from the horizontal.

Abstract: The control system comprises a microphone (7) linked to a receiver block (9) and delivering audio signals to a discriminating block (11) comparing the voice profile of the speaker with a particular authorized speaker profile recorded in a personal chip card (20) of the speaker. The authorized audio signals are then processed in a voice recognition device and an electronic control unit so as to selectively activate one of the actuators (3) of the operating table in response to a specific voice command uttered into the microphone and effected by an effector (16) actuated by the speaker.

Abstract: The rotation of a first element (3), for example an arm carrying a lighting unit, with respect to a second element (2), about an axis (12), is limited in both directions, with an angular travel which can exceed 360 °, by an elastic element (13) comprising two coils wound in the same direction, each cooperating with a mobile stop piece integral in rotation with the first element (14, 15), the central part of the spring (13) cooperating with a fixed stop piece (16) integral with the second element (2)

Abstract: Support structure/transport trolley (C) assembly having a support structure (S), such as a ceiling mount intended for a hospital building treatment room, comprising at least one arm (2) equipped with one or more vertical columns (3) and a fixing device (1) allowing the structure (S) to be fixed to the ceiling or to a wall; a mobile transport trolley (C) bearing attachment (31) which cooperate with a receiving device (32) borne by a column (3) to allow the trolley (C) to be fixed to the column (3); and a lifting device (33) also borne by the trolley (C) capable of allowing the lifting of at least part of the trolley (C) after this trolley has been fixed to the column (3).

Abstract: A device for the angular positioning of a mass with respect to a horizontal support axis includes a support arm intended to carry the mass and the mounted angularly displaceable about the support axis and the balancing device for balancing the arm connected thereto and cooperating with an elastic return member adapted to apply to a point of the support arm a mass balancing moment opposed to the moment generated by the weight of the mass. The assembly of the balancing member and the elastic return device is mounted oscillating on an oscillation axis parallel to the support axis and situated at a fixed distance therefrom so as to be orientated permanently towards the point during angular displacements of the support arm.

Abstract: A projector comprises optical elements arranged each to constitute a passage port comprising, on the one hand, a first lens (d.sub.1) ensuring focussing of the light source (3) in the plane to be illuminated, whilst optimizing the correction of optical aberrations and, on the other hand, a second lens (d.sub.2) ensuring a multiplication of the image of the source to permit rendering uniform the illumination in the illuminated plane.