×

Color ranging method for high speed low-cost three dimensional surface profile measurement

  • US 5,675,407 A
  • Filed: 03/02/1995
  • Issued: 10/07/1997
  • Est. Priority Date: 03/02/1995
  • Status: Expired due to Fees
First Claim
Patent Images

1. An apparatus for determining projection angles of light rays based on values of the wavelength of the projected individual light ray, comprising(a) a light projection means for generating a bundle of light rays with spatially varying wavelengths to illuminate surface of objects in the scene such that light rays projected from different projection angles (θ

  • ) have different spectral wavelengths (λ

    ), and(b) a sensor means for detecting the wavelengths (λ

    ) of light rays reflected from objects'"'"' surface that is illuminated by said light projection means, and(c) a calibration means for relating the wavelengths (λ

    ) detected by said sensor to the light ray projection angles (θ

    ),whereby projection angles (θ

    ) of light rays can be determined based on the wavelengths (λ

    ) of the light rays detected by the sensor.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×