Patents Represented by Attorney Stoel Rives LLP-PDX

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  • Light control devices and methods implemented with kinoform diffusers having controllable diffusion characteristics
    Patent number: 7660039
    Abstract: Kinoform diffusers (82) exhibit controllable diffusion characteristics that include off-axis transmittance and reflectance properties, elimination of zero-order beam, and freedom from spectral dispersion under achromatic illumination. Light control devices (76, 80, 82) implemented with kinoform diffusers having controllable diffusion characteristics provide anisotropic luminous intensity distributions and glare control at high viewing angles while maintaining high luminaire efficiency or daylight utilization.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: February 9, 2010
    Assignee: Ledalite Architectural Products Inc.
    Inventors: Scott Santoro, Melissa Crenshaw, Ian Ashdown