Abstract:
The invention relates to an apparatus for acquiring a two-dimensional image of the external surface of a three-dimensional object (3) comprising: - displacing means (5) for supporting and displacing the object (3); - a single camera (15) for capturing images of portions of the object surface; - rotating means (10) for rotating the object (3), whereby the single camera (15) is able to capture images corresponding to successive exposed portions (3a) of the object surface. The single camera (15) is configured to sequentially capture the images as respective single frames and the apparatus further comprises electronic processing means adapted to ° read out a sub-frame from the single frame, ° store said sub-frames; and ° assemble the successive sub-frames into an assembled frame corresponding to a two-dimensional image of an unpeeled surface area of the object. The invention also relates to a corresponding method of acquiring a two-dimensional image of the external surface of a three-dimensional object (3).
Abstract:
A puff tonometer in which the eyepiece and objective lens form a simple telescope which is capable of presenting to the user an in-focus image of distant objects, as well as an image of light reflected by an eye under test at close quarters when viewed through the eyepiece. A Pechan-Schmidt prism inverts the image and presents to the user an image of the patient's eye which is correctly oriented and handed in a vertical and horizontal sense. The focal length of the eyepiece typically lies in the range 62-100mm, preferably 80mm.
Abstract:
A healthcare keyboard is provided with a key matrix (301) having contact zones (303a, 3O3...n), arranged to represent the layout of a keyboard, a processor (302) adapted to receive a signal from the key matrix (301) indicating whether a contact zone (303 a, 303...n), is open or closed and to transmit data to an external device, and a dedicated "clean" key. The processor (302) is arranged to switch between a first mode of operation, in which the processor (302) is adapted to process data from the keys in the key matrix (301) and a second mode of operation in which the processor (302) is adapted to disregard signals from the keys in the key matrix (301) in response to receipt of an interrupt signal from the dedicated "clean" key. Certain novel key shapes, profiles and cross sections are described, as well as internal arrangements and methods of use.
Abstract:
A puff tonometer includes two light sources located at diametrically opposite points, preferably equidistant from the optical axis of the objective lens assembly of the tonometer. The sources are arranged to direct light forwardly of the tonometer such that, in use, and when positioned close to a patient's eye under test, light from the two sources, after reflection by the anterior corneal surface of the eye under test, will be imaged by the objective lens assembly of the tonometer, to appear as two small areas of light in the field of view. The spacing and position of the two supplementary light sources relative to the objective lens assembly are selected so that as the tonometer is moved towards an eye under test and begins to approach the distance from the eye at which the tonometer will automatically discharge a puff of air towards the eye, the light reflected by the corneal surface will appear as two closely spaced spots of light which, with continued movement of the unit towards the eye, will begin to move away from each other, and will be replaced by two segments of light reflected from the corneal surface of the eye, which reflected light also becomes focused onto an array of photoelectric detectors as the unit approaches the critical firing distance from the eye. The light from the two supplementary light sources is coloured and is distinct from the light used to form the two segments and when in focus trigger the air discharge. If the latter light is red, the light from each of the two supplementary light sources may be green or blue for example. When equidistant the position of the two spots of light relative to the centre of the field of view readily indicates to the user whether the unit is centred on the eye. A resiliently deformable extension may be fitted to the tonometer nozzle whose natural length is greater than the critical distance of the front of the nozzle from the eye at which an air pulse is released, and which can be pushed against the patient's face and thereby reduced in length until the critical distance is reached.
Abstract:
A puff tonometer which includes an object at a point in the optical path of light from a source of light in the tonometer, typically near to the source, such that an in-focus image of the object will be formed in the user's field of view when the tonometer is at the critical distance from an eye under test at which the automatic air pulse generating means will be triggered by light reflected from the eye forming an in focus image of a mask on a plurality of photoelectric sensors. A second object may be located in the same region of the tonometer as the first object, but in a plane which is spaced from the plane containing the first object, whereby its image will come into focus in the field of view just before the image of the first object comes into focus, as the unit is moved slowly towards the patient's eye. A third object visually distinguishable from both the first and the second objects may be located in a third plane spaced from the plane containing the first object, whereby its image will come into focus if the unit is moved closer to the patient's eye than said critical distance. Two supplementary light sources may be provided on opposite sides of the puff tube of the tonometer to project two narrow beams of light towards an eye under test, to appear as two spots of light in the field of view ahead of when the in focus image of the object(s) will be seen. Typically the latter is formed using red light and the two supplementary light sources produce green light. A longer focal length eyepiece may be employed to allow an image of the eye to be seen from a distance to assist in initially lining up the tonometer with the patient's face.
Abstract:
Appareil (10) et procédé de formation, in situ d'un organe de protection externe (12), de préférence un matériau en fil d'acier élastique, sur un tuyau (14). Le fil d'acier élastique est extrêmement avantageux comme matériau pour en faire des organes protecteurs. Jusqu'à présent, il a été nécessaire de préformer le fil d'acier élastique sur une machine de bobinage et d'installer des longueurs précoupées de serpentins sur des tuyaux partiellement assemblés. La présente invention surmonte les problèmes exposés ci-dessus concernant la construction et l'assemblage en proposant un appareil (10) et un procédé de formation de l'organe de protection en fil d'acier élastique (12) sur place sur un tuyau (14) ayant des raccords préassemblés aux deux extrémités. L'appareil (10) comprend une tête de formation (20) ayant une première et une seconde parties séparables (46, 48). Une pluralité d'organes matriciels radialement espacés (60) sont prévus sur la première et la seconde parties (46, 48) pour former entièrement deux rouleaux complets d'un organe de protection (12). L'appareil (10) et le procédé de la présente invention sont particulièrement utiles pour former des organes de protection en fil d'acier élastique sur des tuyaux hydrauliques de haute pression utilisés dans des conditions de fonctionnement rigoureuses.
Abstract:
The invention relates to an apparatus for handling capsules in a capsule processing equipment, comprising - a hopper (25) for containing a bulk of capsules, said hopper having an upper portion with an upper inlet (31) for feeding the capsules; and - a conveying belt (37) for transferring the capsules from the hopper (25) within the processing equipment (1), said conveying belt (37) travelling in an inclined travel direction (D) for receiving capsules from the hopper (25), the belt (37) being provided with successive cavities adapted to accommodate a single capsule. The apparatus is adapted to singulate capsules in the cavities of the conveying belt (37) from the bulk, into a pre-defined and repeatable position. The invention also relates to a capsule processing equipment, such as an inspection equipment (1) or a capsule printing equipment comprising such an apparatus.
Abstract:
A puff tonometer in which the eyepiece and objective lens form a simple telescope which is capable of presenting to the user an in-focus image of distant objects, as well as an image of light reflected by an eye under test at close quarters when viewed through the eyepiece. A Pechan-Schmidt prism inverts the image and presents to the user an image of the patient's eye which is correctly oriented and handed in a vertical and horizontal sense. The focal length of the eyepiece typically lies in the range 62-100mm, preferably 80mm.
Abstract:
The invention relates to an apparatus for acquiring a two-dimensional image of the external surface of a three-dimensional object (3) comprising: - displacing means (5) for supporting and displacing the object (3); - a single camera (15) for capturing images of portions of the object surface; - rotating means (10) for rotating the object (3), whereby the single camera (15) is able to capture images corresponding to successive exposed portions (3a) of the object surface. The single camera (15) is configured to sequentially capture the images as respective single frames and the apparatus further comprises electronic processing means adapted to • read out a sub-frame from the single frame, • store said sub-frames; and • assemble the successive sub-frames into an assembled frame corresponding to a two-dimensional image of an unpeeled surface area of the object. The invention also relates to a corresponding method of acquiring a two-dimensional image of the external surface of a three-dimensional object (3).
Abstract:
A healthcare keyboard is provided with a key matrix (301) having contact zones (303a, 3O3...n), arranged to represent the layout of a keyboard, a processor (302) adapted to receive a signal from the key matrix (301) indicating whether a contact zone (303 a, 303...n), is open or closed and to transmit data to an external device, and a dedicated "clean" key. The processor (302) is arranged to switch between a first mode of operation, in which the processor (302) is adapted to process data from the keys in the key matrix (301) and a second mode of operation in which the processor (302) is adapted to disregard signals from the keys in the key matrix (301) in response to receipt of an interrupt signal from the dedicated "clean" key. Certain novel key shapes, profiles and cross sections are described, as well as internal arrangements and methods of use.