Abstract: A method for adjusting the color point of a lighting unit including semiconductor-based lasers for generating an RGB signal. The method may include supplying at least one component of the RGB signal to a sensor via a filter; and actuating at least one of the semiconductor-based lasers by means of a signal detected by the sensor.

Abstract: A method for producing a laser device comprising: a semiconductor laser (1) which is configured to emit a laser beam; (2), and a lens (3) which is position-adjusted relative to the semiconductor laser (1), wherein the lens (3) is firstly shifted perpendicularly to the expansion direction of the laser beam (2) and is consequently penetrated by the laser beam (2), wherein the optical axis of the lens (3) lies parallel to the expansion direction of the laser beam (2), and the lens (3) is then fastened to a lens holder (5) by a joining connection (4) by flowing material, which solidifies in order to form the joining connection, such that the mobility of the lens (3) perpendicular to the expansion direction of the laser beam (2) is blocked.

Abstract: Various embodiments relate to a projection device for projecting useful data onto a projection surface. In this case, a first laser device generates radiation having a first wavelength and a second laser device generates radiation having a second wavelength. The spots of the respective beams are detected by a sensor device and fed to a drive device for the laser devices. Said drive device temporally shifts the drive signals relative to one another in such a way that a horizontal distance between the spots is minimized. Various embodiments furthermore relate to a corresponding method for projecting useful data.

Abstract: Various embodiments relate to a projection device for projecting useful data onto a projection surface. In this case, a first laser device generates radiation having a first wavelength and a second laser device generates radiation having a second wavelength. The spots of the respective beams are detected by a sensor device and fed to a drive device for the laser devices. Said drive device temporally shifts the drive signals relative to one another in such a way that a horizontal distance between the spots is minimized. Various embodiments furthermore relate to a corresponding method for projecting useful data.

Abstract: A method for producing a laser device comprising: a semiconductor laser (1) which is configured to emit a laser beam; (2), and a lens (3) which is position-adjusted relative to the semiconductor laser (1), wherein the lens (3) is firstly shifted perpendicularly to the expansion direction of the laser beam (2) and is consequently penetrated by the laser beam (2), wherein the optical axis of the lens (3) lies parallel to the expansion direction of the laser beam (2), and the lens (3) is then fastened to a lens holder (5) by a joining connection (4) by flowing material, which solidifies in order to form the joining connection, such that the mobility of the lens (3) perpendicular to the expansion direction of the laser beam (2) is blocked.

Abstract: A method for adjusting the color point of a lighting unit including semiconductor-based lasers for generating an RGB signal. The method may include supplying at least one component of the RGB signal to a sensor via a filter; and actuating at least one of the semiconductor-based lasers by means of a signal detected by the sensor.

Abstract: A method of protecting a laser against damage caused by undesired incident light in a resonator includes measuring a parameter, which is a measure for the optical power of the incident light. In more concrete terms, the optical power occurring at a resonator mirror is measured. In response to a result of the measurement, a pumping power for the laser is reduced to reduce the optical power in the resonator to a value that is uncritical for the laser.

Abstract: A method of protecting a laser against damage caused by undesired incident light in a resonator includes measuring a parameter, which is a measure for the optical power of the incident light. In more concrete terms, the optical power occurring at a resonator mirror is measured. In response to a result of the measurement, a pumping power for the laser is reduced to reduce the optical power in the resonator to a value that is uncritical for the laser.

Abstract: A method for image generation on a recording material reduces the nonlinear spacing error between individual beams. In the method for image generation on a recording material, in which, in order to produce recording points on the recording material, individual radiation sources are used which are disposed along a line on a carrier material and in which the individual radiation sources are driven in accordance with an image and the individual beams are imaged onto a radiation-sensitive layer of the recording material. The spacing of the recording points on the recording material is set by length changes in the direction of the line being produced thermally in the carrier material.

Abstract: An imaging device (10) for a printing form (12), has at least one first and one second laser diode bar (14, 16), the laser diodes (18) on the laser diode bars (14, 16) being disposed in lines. The device includes a first and a second micro-optics (21, 22) for generating aberration-corrected intermediate image spots of the laser diodes (18) and a macro-optical imaging optics (23) for generating image spots (24) on the printing form (12). The first and the second micro-optics (21, 22) are positioned in such a way in the emission regions of the first and second laser diode bar (14, 16) that the image spots (24) of the laser diodes (18) of the first and second laser diode bar (14, 16) lie at disjoint positions on the printing form (12), substantially along a spanning polyline (30). Also, a method is provided for arranging optical components in an imaging device (10) for a printing form (12).

Abstract: A method for image generation on a recording material reduces the nonlinear spacing error between individual beams. In the method for image generation on a recording material, in which, in order to produce recording points on the recording material, individual radiation sources are used which are disposed along a line on a carrier material and in which the individual radiation sources are driven in accordance with an image and the individual beams are imaged onto a radiation-sensitive layer of the recording material. The spacing of the recording points on the recording material is set by length changes in the direction of the line being produced thermally in the carrier material.

Abstract: An imaging device (10) for a printing form (12), has at least one first and one second laser diode bar (14, 16), the laser diodes (18) on the laser diode bars (14, 16) being disposed in lines. The device includes a first and a second micro-optics (21, 22) for generating aberration-corrected intermediate image spots of the laser diodes (18) and a macro-optical imaging optics (23) for generating image spots (24) on the printing form (12). The first and the second micro-optics (21, 22) are positioned in such a way in the emission regions of the first and second laser diode bar (14, 16) that the image spots (24) of the laser diodes (18) of the first and second laser diode bar (14, 16) lie at disjoint positions on the printing form (12), substantially along a spanning polyline (30). Also, a method is provided for arranging optical components in an imaging device (10) for a printing form (12).

Abstract: Described is a method for imaging a printing form (10) using one or more laser diode bars having a number n of individually controllable laser diodes (16) whose imaging spots (20) lie essentially in a row on the printing form (10), for the case that at least one laser diode (16) on the laser diode bar (14) cannot be activated, but a maximum number m of laser diodes (16) whose neighboring imaging spots (20) have a distance a on the printing form (10) are able to be activated. The relative speed between the imaging device (12) and the printing form (10) is increased by the factor (n/m). The exposure time per printing dot (69) is shortened by the factor (m/n). In order to input in each case an amount of energy per printing dot (69) on the printing form (10), imaging is carried out using the m activatable laser diodes (16) with an imaging intensity which is a function of the exposure time and of the specific amount of energy per printing dot (69).

Abstract: Described is a method for imaging a printing form (10) using one or more laser diode bars having a number n of individually controllable laser diodes (16) whose imaging spots (20) lie essentially in a row on the printing form (10), for the case that at least one laser diode (16) on the laser diode bar (14) cannot be activated, but a maximum number m of laser diodes (16) whose neighboring imaging spots (20) have a distance a on the printing form (10) are able to be activated. The relative speed between the imaging device (12) and the printing form (10) is increased by the factor (n/m). The exposure time per printing dot (69) is shortened by the factor (m/n). In order to input in each case an amount of energy per printing dot (69) on the printing form (10), imaging is carried out using the m activatable laser diodes (16) with an imaging intensity which is a function of the exposure time and of the specific amount of energy per printing dot (69).