摘要:
The disclosure relates to a fibre-optic mode scrambler for homogenising laser illumination over a short timescale. Example embodiments include a fibre-optic mode scrambler (100) comprising: a series of fibre guides (103a, 103b, 104a, 104b) arranged to hold a portion of an optical fibre (102) with a defined curvature between a pair of the fibre guides (103a, 103b); an electroactive transducer (101) positioned between the pair of fibre guides (103a, 103b) and arranged to contact the portion of the optical fibre (102) along a contact length of the optical fibre; and a control module (111) arranged to provide a drive signal to the transducer (101).
摘要:
Die Erfindung betrifft eine Beleuchtungsvorrichtung für Fahrzeuge, insbesondere Scheinwerfer, mit einer Lichtquelleneinheit (1, 1') und mit einer Optikeinheit (11) zur Erzeugung einer vorgegebenen Lichtverteilung (13), wobei die Lichtquelleneinheit (1, 1') eine Mehrzahl von ersten Laserdioden (2) roter Lichtfarbabgabe, zweiten Laserdioden (3) grüner Lichtfarbabgabe und dritten (4) Laserdioden blauer Lichtfarbabgabe aufweist, dass die Lichtquelleneinheit (1, 1') eine Anzahl von Faserkopplern (5) aufweist, wobei der Faserkoppler (5) eingangsseitig mit mehreren Laserdioden (2, 3, 4) über jeweils eine Lichtfaser (6, 6', 6'', 6''') und ausgangsseitig lediglich über eine einzige Lichtfaser (7, 7') mit einem Licht der Lichtquelleneinheit (1, 1') abstrahlenden Lichtabgabefeld (8) verbunden ist.
摘要:
A system for illuminating a surgical field comprises a surgical imaging element and an illumination element. The surgical imaging element images the surgical field and has an image axis. The illumination element or the imaging element may be moved independently of the other in order to control illumination or field of view.
摘要:
A high-divergence-angle optical fiber apparatus is disclosed that includes a multimode optical fiber having a distal end and a divergence angle θ'. A light-redirecting structure is operably disposed at the distal end and consists of an array of between 1 and 10 layers of fused glass microspheres. The light-redirecting structure defines a divergence angle θ, wherein θ ≥ 2θ'. A light source system that utilizes the high-divergence-angle optical fiber apparatus is also disclosed.
摘要:
Eine Ausrichtungsvorrichtung (10) für einen auszurichtenden Gegenstand (12), insbesondere für ein Ende einer Lichtleitfaser (14), wobei der auszurichtende Gegenstand (12) eine Gegenstandslängsrichtung LG und eine im Wesentlichen senkrecht zur Gegenstandslängsrichtung LG verlaufenden Austrittsfläche aufweist, mit einer Aufnahme für den auszurichtenden Gegenstand mit einer Aufnahmelängsrichtung LA und zumindest einer ersten Positioniervorrichtung (20) mit einer ersten Wirkrichtung W1 und einer zweiten Positioniervorrichtung (40) mit einer von der ersten Wirkrichtung verschiedenen zweiten Wirkrichtung W2 zeichnet sich dadurch aus, dass die erste Positioniervorrichtung (20) ein erstes Abgleitelement (30) aufweist, an dem der auszurichtende Gegenstand bei Betätigung der zweiten Positioniervorrichtung (40) entlang der zweiten Wirkrichtung W2 abgleiten kann, und wobei die zweite Positioniervorrichtung (40) ein zweites Abgleitelement (38)aufweist, an dem der auszurichtende Gegenstand (12) bei Betätigung der ersten Positioniervorrichtung (20) entlang der ersten Wirkrichtung W1 abgleiten kann.
摘要:
An ophthalmic illumination system can include an optical fiber configured to transmit a light beam output by a light source and focused by a condenser. The optical fiber can include proximal, distal, and central portions. The proximal portion can be configured to receive the light beam focused by the condenser. The distal portion can be configured to emit the light beam to illuminate a surgical field. The central portion can extend between the proximal and distal portions. A core diameter of the proximal portion can be larger than core diameters of the central and distal portions. An ophthalmic illumination method can include focusing, using a condenser, a light beam emitted by a light source onto a proximal portion of an optical fiber. The method can also include transmitting, using the optical fiber, the light beam to a surgical field.
摘要:
In one aspect, a handheld lighting system is disclosed, which comprises a handheld housing extending from a proximal end to a distal end, and a light module disposed at least partially in the housing. The handheld lighting system further includes a removable and replaceable power module that is coupled to the housing (e.g., it is at least partially disposed within the housing) and is electrically coupled to the light module, e.g., through a pair of electrical leads, for providing electrical power thereto. Light intensity from the light module may be controlled from a knob on the power module. Various adapters can allow the lighting system to attach to a multitude of medical, industrial, dental or veterinary endoscopes or other instruments.
摘要:
The present invention relates to a light emitting apparatus. The apparatus comprises a high intensity light source (102) configured to emit light of a first wavelength (10); a beam shaping optical element (104) configured to redistribute the light of the first wavelength emitted by the high intensity light source into an outgoing light beam having a far field beam cross sectional profile having a spatially flat light distribution; and a light converting member (206) configured to be exposed to the outgoing light beam having the spatially flat light distribution, to convert at least a portion of the light of the first wavelength into light of a second wavelength (20), and to emit the light of the second wavelength.
摘要:
An elevator system includes a hoistway (11) and an elevator car (14) positioned in the hoistway and configured to travel along the hoistway. The elevator car includes an elevator car door (24). A door operator assembly is fixed in the hoistway at a landing floor and includes a sensor (28) to sense presence of the elevator car at the landing floor; and a door operator mechanism (26) to open both the elevator car door and a landing floor door when the sensor senses presence of the elevator car at the landing floor. A light source 36 may be fixed at the hoistway and a light transmitter (38) is positioned at the elevator car to gather light from the light source and output the light into an interior of the elevator car. A ventilation system (52) may be fixed at the hoistway and is interactive with the elevator car to condition an interior of the elevator car.