Abstract: In a projection arrangement for projecting an image onto a projection surface, there are provided a light source (26), a control unit (25), a light modulator (10), which is controllable by said control unit (25) in order to generate an image on the basis of predetermined image data, an optical device (11), arranged following said light modulator, for projecting said image onto the projection surface (34), a film stage (2) for holding a positive image recorded on a carrier medium, projection optics (3), arranged following the film stage (2) when projecting the positive image, and a control device (6), allowing either to direct light from the light source (26) to the light modulator (10) or to illuminate a positive image, which is held by the film stage (2), with said light. Thus, a projection arrangement is provided which can project both positive images and images generated on the basis of predetermined data onto a projection surface (34).

Abstract: In an apparatus for projecting a picture on a projection screen, having a light source (1) emitting light, whereby a luminous area (3) can be generated with said light, having a reflective light modulator (12, 13, 14) that can receive the light emitted from the luminous area (3) and modulates it for the purpose of generating a picture, and further having a projection optics (16) arranged following the light modulator (12, 13, 14) in order to project the picture on the projection screen (17), wherein an optics system (7, 23, 31, 33, 34) is arranged in front of the light modulator (12, 13, 14), wherein the optics system images the light received from the luminous area (3) on the light modulator (12, 13, 14) on the one hand, and on the other hand images the light modulated by means of the light modulator (12, 13, 14) in order to generate a picture in the intermediate image level (ZE) that can be projected on the projection screen by the projection optics.

Abstract: In an apparatus for projecting a multi-colored picture on a projection screen (17), having a light source (1) that emits multi-colored light, a color unit (9, 35), a first and a second light modulator (12, 13, 14) arranged following the color unit (9, 35), and a projection optics (16), wherein the color unit (9, 35) is illuminated with light from the light source (1) and separates light in a first and a second color and directs it on the first and second light modulator (12, 13), wherein the light modulators (12, 13, 14) modulate the light shining on them, in order to generate a color frame each of the multi-colored picture, and wherein the modulated light is superimposed to a common luminous beam by means of the color unit (9, 35), where the luminous beam illuminates the projection optics (16), and wherein an optics system (7, 23, 28, 31) that is illuminated by the common luminous beam is provided between the color unit (9, 35) and the projection optics (16) comprising a curved mirror (21, 24, 26), wherein t

Abstract: A method and an arrangement for detecting the position of the plane XY of an object, which plane XY is to be scanned, and for its positioning in the focal plane X′Y′ of a laser scanner, preferably for a laser scanning microscope. According to the disclosure, it is provided in a method of the type described above that, after a rough orientation of the object carried out by placing on an object holder, a laser beam is directed successively in time to at least three different points P1, P2 . . . Pn located in the scan plane XY of the object and, in doing so, each of the reflections proceeding from the points P1, P2 . . .

Abstract: In a projection arrangement for projecting an image onto a projection surface, there are provided a light source (26), a control unit (25), a light modulator (10), which is controllable by said control unit (25) in order to generate an image on the basis of predetermined image data, an optical device (11), arranged following said light modulator, for projecting said image onto the projection surface (34), a film stage (2) for holding a positive image recorded on a carrier medium, projection optics (3), arranged following the film stage (2) when projecting the positive image, and a control device (6), allowing either to direct light from the light source (26) to the light modulator (10) or to illuminate a positive image, which is held by the film stage (2), with said light. Thus, a projection arrangement is provided which can project both positive images and images generated on the basis of predetermined data onto a projection surface (34).

Abstract: A projection arrangement for projecting an image onto a projection surface, said arrangement comprising a light source (26), a film stage (2), arranged following said light source, for holding a positive image recorded on a carrier medium, and projection optics (3) for projecting a illuminated positive image, is provided with a control unit (25), a light modulator (10) controllable by said control unit in order to generate an additional image on the basis of predetermined image data, said light modulator being followed by an optical device (11) for projecting the additional image onto the projection surface (34), and with a beam splitter (6) arranged between the light source (26) and the film stage (2) so as to split the light from the light source (26) into a first partial beam directed to the film stage (2) in order to illuminate the positive image and into a second partial beam which may be directed to the light modulator (10).

Abstract: A projection arrangement for projecting an image onto a projection surface, said arrangement comprising a light source (26), a film stage (2), arranged following said light source, for holding a positive image recorded on a carrier medium, and projection optics (3) for projecting a illuminated positive image, is provided with a control unit (25), a light modulator (10) controllable by said control unit in order to generate an additional image on the basis of predetermined image data, said light modulator being followed by an optical device (11) for projecting the additional image onto the projection surface (34), and with a beam splitter (6) arranged between the light source (26) and the film stage (2) so as to split the light from the light source (26) into a first partial beam directed to the film stage (2) in order to illuminate the positive image and into a second partial beam which may be directed to the light modulator (10).

Abstract: A medical laser therapy device, particularly for use in ophthalmology and surgery, comprises a controllable pump module with a coupling element for a waveguide, a beam control device in the form of a waveguide for supplying the pumping radiation delivered by the pump module to the applicator which is provided with a coupling element for the waveguide for introducing a target beam and/or treatment beam into the eye to be treated.

Abstract: The invention is directed to a laser slit lamp comprising a slit lamp base, a slit lamp head and a slit lamp microscope. The laser slit lamp is connected with an applicator. It comprises means for uniting radiation from at least two radiation sources collinearly and for directing the radiation of a treatment beam or working beam onto the location to be treated in or on the eye of a patient, means for generating a target beam or marking beam for targeting and observing the location to be treated in or on the eye, and adjusting means in the applicator for changing the intensity and diameter of the working beam spot used for treatment. The radiation sources are laser radiation sources arranged in the slit lamp head, in the slit lamp base or in the slit lamp microscope for generating the working beam, illumination beam and/or target beam. Devices for control, regulation and monitoring are likewise arranged in the interior of the slit lamp.

Abstract: A laser scanning ophthalmoscope with at least a first scanner, wherein a scanning movement is generated at least in a first direction, wherein the illumination of the eye is effected alternately with different wavelengths during the scanning movement in the first direction and a first image is received for a first illumination wavelength and a second image is received for a second illumination wavelength, and a plurality of images which are received in this way are compared with one another and correction values are determined from the object displacement of images received at an illumination wavelength for the images received at the other respective illumination wavelength.

Abstract: The invention is directed to a laser scanning ophthalmoscope for viewing the ocular fundus of the eye of a patient. A laser source generates a laser beam and a first scanner imparts an oscillatory deflection to the laser beam in a first direction. A second scanner imparts an oscillatory deflection to the laser beam in a second direction and transmits the oscillating laser beam toward the ocular fundus. At least a portion of the light of the laser beam is reflected from the ocular fundus and a detector detects the reflected light. A display displays an image defined by the light reflected from the ocular fundus and a control is connected to the display for selecting a sectional image of the image and the sectional image corresponds to a subregion of the ocular fundus. A drive motor pivotally moves at least one of the first and second scanners and a drive unit controls the drive motor. An interface connects the control to the drive unit.