Patents Assigned to Saunders-Roe Development Limited
  • Light emitting devices
    Patent number: 4947475
    Abstract: A light emitting device in which annular self luminous light sources are supported intermediate the ends of a resilient rod. In an illustrated embodiment a plurality of the rods are located concentrically within a transparent tube between end caps which close the ends of the tube.
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: August 7, 1990
    Assignee: Saunders-Roe Development Limited
    Inventor: Alfred N. Bright
  • Self luminous characters and signs incorporating same
    Patent number: 4928414
    Abstract: A self luminous character comprises a transparent light carrier having a plan shape defining the desired shape of the character and includes a longitudinally extending recess housing one or more self luminous light sources. Light from the or each light source diffuses through the transparent light carrier and is reflected by reflector means to be emitted through a front surface of the carrier and illuminate the plan shape of the character.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: May 29, 1990
    Assignee: Saunders-Roe Development Limited
    Inventor: Alfred N. Bright