Resources Contact Us Home
Laser scanner with parabolic collector

Image Number 6 for United States Patent #6765664.

An improved laser scanning apparatus (46) for determining frame or unibody alignment or misalignment of a vehicle (40) is provided, which includes a laser assembly (54), a pair of rotatable mirror assemblies (56,58) and laser detectors (114,116) located within an enclosed housing (50,52). The laser assembly (54) has an upper pair of lasers (122,126) located in known, spaced relationship above a lower pair of lasers (124,128); detector assemblies (114, 116) are also provided including substantially parabolic reflective surfaces (118a, 120a) with detectors (114a, 116a) disposed substantially at the focal point of the surfaces (118a, 120a). The apparatus (46) is used in conjunction with a plurality of individually coded reflective targets (44) which are suspended from known reference points on the vehicle (40). In use, the laser assembly (54) in conjunction with the mirror assemblies (56,58) directs upper and lower laser beams through 360 degree scans to impinge on the targets (44); laser radiation reflected from the targets (44) is detected by the detector assemblies (114, 116), allowing trigonometric calculation of target positions using information derived from the scans of the upper and lower beams. In this way, a determination can be made if any of the targets (44) are out of plumb (i.e., not truly vertical). Preferably, the housing (50,52) includes a pair of elongated, laser-transparent panels (88, 90) and is effectively sealed to minimize contamination of the apparatus (46). The provision of parabolic detection assemblies 114, 116 increases the signal-to-noise ratio for the apparatus (46).

  Recently Added Patents
System, apparatus, and method for fast startup of USB devices
Pattern forming method using developer containing organic solvent and rinsing solution for use in the pattern forming method
Piperazinyl methyl phenyl cyclohexane compound
System and method for configuring a direct lift control system of a vehicle
Administrable compositions
Semiconductor device
  Randomly Featured Patents
System and method of communication protocols in communication systems
Fuel saving device
Method and system for removing color bleeding artifacts by filtering the chrominance plane of decompressed images
Controlling a computer system having a processor including a plurality of cores
Method and device for forming diamond film
Air bag cover for passenger
Pouch assembly
System and method for the near-real time capture and reporting of large population consumer behaviors concerning television use
Shutter release mechanism
Method for securing communication in a local area network switch