Abstract: A method for transferring an electronic component supported by a carrier to a desired position on a substrate include moving the carrier supporting the component relative to the substrate while the component is present on a side of the carrier facing towards the substrate, with the component is positioned opposite the desired position on the substrate. Then, a light beam is directed at the carrier, at the location of the component, from a side remote from the substrate, as a result of which a connection between the component and the carrier is broken and the component is transferred from the carrier to the substrate.

Abstract: The present invention relates to a lighting system (1), having a laser (3), and a method carried out in such a system. The system is arranged to vary the coherence of outputted light, preferably periodically, such that the light, when projected onto a surface (7; 33), produces a varying amount of speckle. This has proven useful as a tool to attract the attention of a user viewing the light projected on the surface.

Abstract: A carrier substrate (100) with laser sources includes a transparent center substrate (20), an upper substrate (30) adhered to the center substrate having openings (40) formed therein to expose the center substrate on a first side, and a lower substrate (32) adhered to the center substrate on a second side opposite the first side and having openings (42) formed therein to expose the center substrate on the second side, the openings on the lower substrate corresponding to positions of the openings in the upper substrate. Frequency conversion elements (60) are disposed on the center substrate within the openings of the lower substrate. Laser dies (70) are aligned to the frequency conversion elements and coupled to the lower substrate to provide light though the frequency conversion elements and the center substrate during operation. Methods for fabrication are also disclosed.

Abstract: The present invention relates to a lighting system (1), having a laser (3), and a method carried out in such a system. The system is arranged to vary the coherence of outputted light, preferably periodically, such that the light, when projected onto a surface (7; 33), produces a varying amount of speckle. This has proven useful as a tool to attract the attention of a user viewing the light projected on the surface.

Abstract: A laser beam projector employs a light engine including a semiconductor laser platform (20) emitting a plurality of infrared laser beams and a frequency converter (30) emitting a plurality of primary color laser beams as a frequency conversion of the plurality of infrared laser beams, wherein each primary color laser beam has a primary color wavelength corresponding to a high sensitivity of a human eye. The laser beam projector further employs a laser beam mixer (40) emitting a projection laser beam as a mixture of the plurality of primary color laser beams.

Abstract: A laser system (100) produces at least one laser beam (204) that is output from the laser system. The laser system includes a safety device (124) that terminates the output of the laser beam from the laser system. The termination occurs upon the laser beam interacting with a predetermined reflective surface (202) to change a characteristic thereof, thus indicating of a fault condition where the laser beam may cause damage to a human eye, for example. The safety device (124) may be reflective in the path of the laser beam(s) from source to output, and the reflective surface (202) melts or ablates upon the fault condition, thus interrupting the path and preventing laser output. In addition, the safety device (124), upon the fault condition, may produce or trigger a control signal (126) to turn off the laser sources (110). A sensor (620) may be located behind the predetermined surface (202) to indicate the fault condition upon ablation and/or melting of the predetermined surface (202).

Abstract: A light emitting module (19), comprising at least one semi-conductor light source (20a-c) capable of emitting light, and a light-modifying member (21) arranged adjacent to the at least one semiconductor light source (20a-c) in a direction of emission of the light. The light-modifying member (21) is formed by a stacked sheet element (21) separated from an integral stacked sheet structure comprising first and second stacked sheets, so that the stacked sheet element (21) includes first and second sheet portions of the first and second stacked sheets, and at least the first sheet portion is configured to modify the emitted light. By providing the light-modifying member as a stacked sheet element which has been separated from an integral stacked sheet structure, batch manufacturing of the light-modifying member and/or the light emitting module is enabled, such that manufacturing steps requiring manual labor, or use of expensive equipment may be performed to produce the integral stacked sheet structure.

Abstract: A two dimensional scanner comprising a first mirror (1) rotatable around a first axis (4), and a second mirror (2) rotatable around a second axis (5), said first and second reflective surfaces being formed on the same substrate (3), with their axis of rotation (4, 5) being non parallel in a common plane, and a reflective surface (6) arranged such that a light beam reflected by said first mirror (1) is subsequently reflected by said surface (6) and finally by said second mirror (2). According to the invention, the first mirror is thus capable of scanning said light beam in a first direction and said second mirror is capable of scanning said light beam in a second direction. The result is a very compact two dimensional scanner, where the two individual mirrors are independent of each other, but still can be provided very close together, eliminating, or at least reducing distortion of the image.

Abstract: A method for laser spot welding, whereby a laser beam is directed to the material to be welded, and whereby, during the welding operation, the surface temperature of said material at the spot of the weld is detected. The presence of a weld can be determined depending on the detected surface temperature after the laser beam is switched off. Furthermore, the power of the laser beam can be controlled depending on the detected surface temperature. To control the welding operation, also the reflected laser radiation from the spot of the weld can be detected.

Abstract: Disclosed is a method of marking an object by means of a laser beam. Said method comprising the steps of: applying a donor film on a support, said support at least partly being transparent to the laser beam; placing the support with the donor film in proximity to the surface to be patterned, such that the donor film faces the object to be marked; irradiating the donor film with the laser beam through the support, thereby transcribing a pattern of the donor film to the object; and removing the support with the donor film from the object. The donor film has a thickness of at least 0.5 micron. Also disclosed is a marked object that is obtained by means of the above method, wherein the marking has a thickness of at least 0.5 micron.

Abstract: Method suitable for transferring an electronic component (2??) supported by a carrier (3) to a desired position on a substrate (1). The carrier supporting the component is moved relative to the substrate whilst the component is present on a side of the carrier facing towards the substrate, until the component is positioned opposite the desired position on teh substrate. Then a light beam (4) is directed at the carrier (3), at the location of the component (2??), from a side remote from the substrate, as a result of which a connection between the component and the carrier is broken and the component is transferred from the carrier to the substrate.

Abstract: Method of laser welding which comprises at least two steps: a first step wherein the laser (10) is operated for some time T1 at low intensity in order to create a melt (31) in one part (12) with little or no evaporation of matter, thereby reducing product contamination, and a further step wherein the laser is operated for a shorter time T2 at high intensity in order to push said melt (31) towards a further part (13), whereby large gaps between said parts can be bridged, yet further reducing product contamination thanks to the low laser energy needed to proceed with the further step. Optionally, a third step is performed during a third period of time (T3) in which the weld is post-heated.

Abstract: Method of laser welding which comprises at least two steps: a first step wherein the laser (10) is operated for some time T1 at low intensity in order to create a melt (31) in one part (12) with little or no evaporation of matter, thereby reducing product contamination, and a further step wherein the laser is operated for a shorter time T2 at high intensity in order to push said melt (31) towards a further part (13), whereby large gaps between said parts can be bridged, yet further reducing product contamination thanks to the low laser energy needed to proceed with the further step. Optionally, a third step is performed during a third period of time (T3) in which the weld is post-heated.

Abstract: A method of manufacturing metallic droplets (9), comprising the following steps:(a) providing a substrate (1) which is substantially transparent to radiation of wavelength .lambda., one face (1a) of the substrate (1) being provided with a metallic layer (3) which is partitioned into an array of lands (5);(b) directing a laser beam (7) of wavelength .lambda. through the substrate (1) onto a land (5), thereby causing rapid melting of the land (5) and its detachment from the substrate (1) in the form of a molten droplet (9). In a preferential embodiment of the method, the molten droplet (9) is "shot" onto a target substrate (21) before solidifying.

Abstract: A method of adjusting the mutual separation (g) of the two overlapping metallic cantilever members (9, 11) within the vitreous envelope of a reed switch, having a beam (21) of radiant energy to which the envelope is substantially transparent directed for a controlled period of time through the envelope onto a localised area (p) of at least one of the members (11), causing permanent thermally-induced bending of that member (11) about the irradiated area (p).

Abstract: A method for the mutual displacement of at least two parts of an actuator interconnected by a bridge, and such an actuator. The bridge which connects the two parts and extends parallel to a main surface is locally heated through and through with a temperature gradient which is minimized transverse to the main surface, and is subsequently cooled down whereby the length of the bridge between the parts is reduced owing to the plastic deformation which occurs, so that the parts are displaced relative to one another in a direction parallel to the main surface.