Optics: measuring and testing – By polarized light examination – With light attenuation
Patent
1981-02-17
1983-09-27
Punter, William H.
Optics: measuring and testing
By polarized light examination
With light attenuation
250224, 250578, 356387, G01B 1124, G02B 2717
Patent
active
044065442
ABSTRACT:
An apparatus for measuring the size of the whole or a specified portion of a human body or like body comprises at least one light projecting means for projecting rays, light receiving means opposed to the light projecting means for receiving rays therefrom to detect an actual-size silhouette pattern of the body, a floor portion provided between the light projecting means and the light receiving means for positioning the body thereon, and a rotary member for rotating the two means around the body relative thereto intermittently through a small angle at a time while holding the two means opposed to each other. Measurements of the body can be taken by the apparatus automatically, rapidly and with the desired accuracy without permitting direct contact of any measuring element with the body.
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Hercher, M "An Optical System for the Automated Inspection of Diesel Engines" Proc. Conf. Soc. of Photo-Optical Instrum. Engineers, 22-23, Jan. 1979, pp. 68-72.
Sato et al., "Measurement of Polyhedral Objects by Motion Stereo", Trans. IECE of Japan, vol. E61, #8, Abstracts, 8/78, pp. 680-681.
Appel et al., "Estimating Projected Area", IBM Tech. Disc. Bull., 3/73, pp. 3234-3235.
Williams, E. R., "Two-Dimensional Image Sensor Using One-Dimensional Sensor Array", IBM Tech. Disc. Bull., 7/78, pp. 436-437.
Seemuller, W. W., "Area Measurement Using Random Image Perturbation with Discrete Arrays", IEEE Trans. on Instrum. & Meas., 5/72, pp. 140-144.
Industrial Technology supplied by Research Development Corporation of Japan in 1979, (p. 55).
Esaki Toshio
Takada Munekazu
Punter William H.
Unitika Ltd.
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