Patents Assigned to Vision Engineering, Ltd.
  • High magnification optical apparatus with rotatable reflective lenticulated surface
    Patent number: 4099831
    Abstract: The invention provides an optical device for use in microscopes and screen projectors comprising a screen formed with multiple lenticular surfaces mechanically traversed at a speed above persistence of vision in the light path between an object and an observation plane, the lenticular surfaces increasing the angle of light ray pencil egress from their angle of incidence to an extent rendering the use of eyepieces unnecessary.
    Type: Grant
    Filed: July 26, 1976
    Date of Patent: July 11, 1978
    Assignee: Vision Engineering, Ltd.
    Inventor: Robin John Freeman