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| Number | Title | Issue Date |
| 7463341 | Method and apparatus for detecting wind velocities by means of a doppler-lidar system In the case of a method of detecting wind velocities by means of a Doppler-lidar system (10), a laser beam of a defined frequency generated by means of a laser (11) is emitted by a transmitting device (12) toward a space area and the light backs... | 12/09/2008 |
| 6982817 | Method, device and laser system for producing screen holograms, and screen hologram In a method of producing video screen holograms, a real video screen is illuminated by means of a narrowband light for producing a hologram of the real video screen. A plurality of individual recordings is carried out, each covering only a partial area of the real v... | 01/03/2006 |
| 6757085 | Image representation system and method for vehicles An imaging system for motor vehicles has a holographic screen, which scatters incident narrow band light at a predetermined solid angle, and a modulator and a lens to project images on the holographic screen. A holographic, transparent ray uniter, which allows broad... | 06/29/2004 |
| 6714327 | Use of a holographic video screen as a display surface in a vehicle The use of a holographic video screen which appears black, gray or colored in ambient light as the display surface in a vehicle, wherein a driver can view the screen while driving without taking his eyes of the road. Additionally, the display system containing such ... | 03/30/2004 |
| 6690408 | Use of a holographic video screen as a display surface for information systems A display unit for an information processing system comprises a holographic image generating system. The information processing system may be a computer, television, telephone or other information system. The display may also be used in a large format, in... | 02/10/2004 |
| 6523955 | Method for improving optic perceptive faculty by modifying the retinal image In an electronic image enhancement system, a reflex image is scanned in the interior of the eye. After modification by a processor, the image is projected back into the eye along the same path, and aligned in registration with the original scanned image. ... | 02/25/2003 |
| 6412949 | System and method for stereoscopic imaging and holographic screen A system for stereoscopic image display includes a projection device (2) with modulators (21, 22) and a polarization splitter prism (3) for the projection of images with differing perspectives each with differing polarization directions. A holographic scr... | 07/02/2002 |
| 6367935 | Method and device for eliminating image speckles in scanning laser image projection A method for the elimination of image speckles in a scanning laser projection is suggested, in which a phase hologram is used for dividing the illumination beam of the projector into partial beams. The partial beams are heterodyned again on the image scre... | 04/09/2002 |
| 6268941 | Holographic display screen with integrated speckle suppression A method for suppressing image speckles in a holographic screen is provided in which the screen is illuminated in the hologram in a plurality of individual steps, changing the recording parameters at each step. As a result, a holographic screen is obtaine... | 07/31/2001 |
| 6227667 | Apparatus for recording the retina reflex image and for superimposing of additional images in the eye An apparatus for recording the exterior retina reflex image of the human eye, has a scanning recorder. The beams of the exterior images pass through the spectacle glasses constructed on the inner side as vaulted, imaging, beam splitting mirrors. The scann... | 05/08/2001 |
| 6213627 | Illuminating system A method and apparatus for transmitting light, wherein a holographic video screen is used as part of an illuminating system. The tendency of such a video screen to backscatter light of certain wavelengths from a predefined direction into a certain solid a... | 04/10/2001 |
| 6118804 | Laser amplification system A laser amplification system with a lasant solid-state material is pumped by pumped light sources and in the case of which one or several pumped beams are guided by mirrors or other optical aids such that each individual pumped beam is focussed several ti... | 09/12/2000 |
| 5960022 | Diode-pumped solid-state ring laser gyroscope The invention concerns a diode-pumped solid-state ring laser gyroscope consisting of a diode-pumped solid-state laser made from a doped crystal or glass in the form of a square or cube for monoaxial or triaxial measurements; limitation and stabilization o... | 09/28/1999 |
| 5894489 | Solid-state laser system for color picture projection A laser system generates read, green and blue beams from a single laser beam generated by an IR continuous-wave laser using rare-earth or transition elements. Semiconductor diodes are used to excite IR continuous-wave laser and simple passive non-linear f... | 04/13/1999 |
| 5265113 | Integrated microsystem Integrated microsystem comprising electrical and nonelectrical, particularly optical functions in a laser system, wherein a base comprising anisotropically etchable semiconducting material on which etching structures for receiving optical and/or electro-o... | 11/23/1993 |
| 5103088 | Optical sensor device using a dielectric transparent spherical-shell section An optical sensor device for recognizing optical irradiation and detecting its direction is constructed as a spherical-shell section from dielectric, optically transparent material. The irradiation penetrating into the spherical-shell section is reflected... | 04/07/1992 |
| 4825063 | Radiation position detection using time-indicative variable-length fiber array A detector device for detecting and indicating the origin of laser radiation is disclosed. The detector has a plurality of discrete optics, with the discrete optics being arranged in azimuth planes. Each discrete optics monitors a preset solid angle with ... | 04/25/1989 |
| 4790641 | Space telescope connected to a star tracker In order to be able to determine in a simple manner the angular deviations etween the optical axes (OT, OS) of a telescope lens (2) and of a star tracker lens (8) which arise during the course of operation of a space telescope due to external influences, t... | 12/13/1988 |
| 4717252 | Method and apparatus for detecting distance and forming image of object in turbid medium using laser A method and system is used for detecting the presence of measuring the distance to and producing an image of, objects which, while being strongly absorbing or reflecting themselves, are hid from sight in a medium which is strongly dampening due to light ... | 01/05/1988 |
| 4682024 | Laser radiation warning sensor utilizing polarization A device for the recognition and directional detection of optical radiation, especially laser radiation, i.e., a so-called laser warning sensor. The laser warning sensor comprises several optical input systems to which a light guide path leading to a dete... | 07/21/1987 |
| 4674874 | Laser detection device A device for detecting the presence and direction of a pulsating or intensity-modulated laser radiation, in which the direction of radiation is exactly determined measures time intervals. A system with two detector elements is provided, with the first ele... | 06/23/1987 |
