Patents by Inventor Walter E. Mutter

Walter E. Mutter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4530736
    Abstract: A Fresnel phase plate lens of either the phase reversal plate or sinusoidal phase reversal plate type is formed in materials hitherto not available to be used to Fresnel phase plate lenses. The material for the desired Fresnel phase plate lens may be chosen for its optimum spectral transmission range. For example, for infrared spectral transmission, silicon and germanium are chosen for the materials to have the Fresnel phase plate lens formed therein. For the visible spectral transmission range various glasses such as crowns, flints, and borosilicates glasses of suitable optical quality are useful. High silica glasses and fused quartz (silicon dioxide) are useful as the lens material for ultraviolet spectral range.
    Type: Grant
    Filed: November 3, 1983
    Date of Patent: July 23, 1985
    Assignee: International Business Machines Corporation
    Inventor: Walter E. Mutter
  • Patent number: 3999864
    Abstract: An instrument for measuring the gloss of test samples at different predetermined angles of incidence, includes a glossimeter head operative to receive polychromatic light and direct it along plural beams at different angles of incidence towards an area on the surface to be analyzed. A plurality of light receptors are arranged to receive specular light reflected from the surface at different angles of reflection corresponding to the angles of incidence. The receptors include plural filters each one operative to pass light at a different wavelength than the others. The light collected by the receptors is passed through a monochromator to a light detector whereby the light directed at the different angles of incidence and reflections corresponds to different wavelengths. Fiber optic light pipes may be used to transmit light through the instrument. A plug type coupling may be used to convert a general purpose spectrophotometer to the purpose of measuring gloss.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: December 28, 1976
    Assignee: International Business Machines Corporation
    Inventor: Walter E. Mutter