Device for projecting light spots onto a surface

Details Device for projecting light spots onto a surface Device for projecting light spots onto a surface

1990-07-24

1993-01-12

Arnold, Bruce Y.

Optical: systems and elements

Light control by opaque element or medium movable in or...

With rotating or pivoting element

351224, G02B 2602, A61B 302

Patent

active

051794667

ABSTRACT:
A device for projecting light spots onto a surface, comprising a device for generating and concentrating light, a pierced member which is movable before said device and endowed with means for selecting the hole to be aligned with the light, an assembly of lenses and mirrors and a projection head for projecting light onto a surface, and a shutter member, which controls the projection of the beam itself, in which device means for orienting said pierced member around the vertical axis passing through the center of the selected hole and means for orienting the same pierced member around the horizontal axis passing through the center of the selected hole are provided; the orientation and position of the pierced member, as well as the selection of the hole and of the orientation of the projection head, being achieved by a computer.

REFERENCES:
patent: 4260227 (1981-04-01), Munnerlyn et al.
patent: 4561738 (1985-12-01), Humphrey et al.

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