Patents Assigned to Hal Corporation
  • Projection type illuminating device
    Patent number: 6623124
    Abstract: To provide a projection type illuminating device which can clearly form a silhouette, a projected figure or the like at a projecting position by a lighted electric lamp, and is safely used without damaging an eye even when the light accidentally enters the eye of a person.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: September 23, 2003
    Assignee: Hal Corporation
    Inventor: Mitsuyoshi Okura
  • Projection type illuminating device
    Publication number: 20010043313
    Abstract: To provide a projection type illuminating device which can clearly form a silhouette, a projected figure or the like at a projecting position by a lighted electric lamp, and is safely used without damaging an eye even when the light accidentally enters the eye of a person.
    Type: Application
    Filed: February 20, 2001
    Publication date: November 22, 2001
    Applicant: HAL CORPORATION
    Inventor: Mitsuyoshi Okura