2035 results about "Laser projection" patented technology

A method and system for visualizing deviations on an actual surface 10, 30 from a nominal, or designed, surface 28 utilizes a system and method for mapping the spatial (e.g. x, y and z) coordinates of the actual surface 10, 30 into a computer 13, comparing the mapped actual surface to the nominal surface 28 to produce a three-dimensional distribution of deviation values (D), processing this distribution into a topographical pattern 34 of multiple contours or areas 34a . . . 34n, each contour or area having the same, or generally the same, deviation value (D), and optically projecting this topographical pattern 34 onto the actual surface 10, 30 in registry with the initial surface mapping to provide a display of the surface deviations (D) directly on the actual surface 10, 30. The deviations are measured along a direction D normal to the actual surface so that the three-dimensional distribution is given in x, y, D coordinates. The optical projection is preferably a laser projection 38. The mapping and projection onto the actual surface 10, 30 are made, and coordinated with one another, with respect to three reference points 32 on the surface 10, 30.

The present invention provides a process for the lay-up of a composite laminate article, the article produced by this process, and the apparatus used to produce the composite laminate article. The composite laminate article may be, for example, an airfoil, particularly useful as a fan blade in a large high bypass ratio turbofan engine, wherein the blade is generally regarded as large and having a high degree of twist. In a preferred embodiment, the present invention provides a process for laying up a composite laminate article comprising a) reading a data set to enable the projection of an image of a ply section onto a work surface, the image indicating a ply section target point; b) laying up a ply section of composite laminating material within the image, wherein the ply section first contacts the work surface at the target point; and c) repeating steps (a)-(b) until the composite laminate article is complete. In a second preferred embodiment, the present invention provides for a lamination apparatus for use in making a composite laminate article comprising a work surface for receiving, in a predetermined sequence, a plurality of ply sections of composite laminating material; a laser projection system using predetermined projection points for outlining an image of a ply section onto the work surface, the image further indicating a ply section target point for making first contact of the ply section with the work surface; and a data set for providing the predetermined projection points to the laser projection system.

Systems, devices, and methods that integrate eye tracking capability into scanning laser projector (“SLP”)-based wearable heads-up displays are described. At least one narrow waveband laser diode is used in an SLP to define one or more portion(s) of a visible image. At least one corresponding narrow waveband photodetector is aligned to detect reflections of the portion(s) of the image from features of the eye. A holographic optical element (“HOE”) may be used to combine the image and environmental light into the user's “field of view.” Three narrow waveband photodetectors each responsive to a respective one of three narrow wavebands output by the RGB laser diodes of an RGB SLP are aligned to detect reflections of a projected RGB image from features of the eye.

A method and apparatus are provided for controlling the operation of a Laser Projection Display (LPD). Generally, the LPD is comprised of a laser, an optical system and a controller. The laser is adapted to emit a beam of laser light. The optical system is adapted to scan the beam of laser light on a display surface in a two-dimensional raster pattern. The controller is adapted to control the rate at which the laser beam is scanned to produce regions of varying resolution on the display surface. The controller is also adapted to present laser light onto the display surface within only selected portions of the two-dimensional raster scan pattern so that spaced apart image regions may be created.