Transparency viewing apparatus having display and masking functions
AssigneeA.D.P. Adaptive Visual Perception Ltd.
InventorsDan Inbar, Giora J. Teltsch
Life of this patent
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Abstract
Apparatus having the dual function of display and optical mapping of transparencies which includes a viewing surface to which a transparency is adjacent, a segmented surface underlying the viewing surface and having a plurality of segments at least two of which have a controllable opacity, at least one photodetector underlying the segmented surface which detects light passing through the viewing surface and the segmented surface and generates detected light signals responsive to the intensity of the detected light and a mapping system which, in an opacity determination mode, sequentially varies of the opacity of selected segments and which determines the opacity of portions of the transparency based on signals supplied during such sequential variation.
Claims43
Apparatus having the dual function of display and optical mapping of transparencies comprising:
- a viewing surface to which a transparency is adjacent;
- a segmented surface underlying the viewing surface and having a plurality of segments at least two of which have a controllable opacity;
- a photodetector underlying the segmented surface which detects light passing through the viewing surface and the segmented surface and generates detected light signals responsive to the intensity of the detected light, wherein the photodetector has an active area substantially smaller than the area of the viewing surface, and wherein the photodetector receives light from more than one of the plurality of segments;
- and
- a mapping system which, in an opacity determination mode, sequentially varies of the opacity of selected segments and which determines the opacity of portions of the transparency based on signals supplied during such sequential variation.
Apparatus having the dual function of display and optical mapping of transparencies comprising:
- a viewing surface to which the transparency is adjacent;
- a segmented surface underlying the viewing surface and having an array of segments, a plurality of which have a controllable opacity;
- a photodetector which detects light passing through the viewing surface and the segmented surface and supplies detected light signals responsive to the intensity of the detected light;
- and
- a mapping system which, in an opacity determination mode, sequentially varies selected ones of the plurality of segments including rectangular groups of segments including a row or column of segments, and determines the opacity of portions of the transparency based on signals generated during such sequential variation.
Apparatus having the dual function of display and optical mapping of transparencies comprising:
- a viewing surface to which a transparency is adjacent;
- a segmented surface underlying the viewing surface and having a plurality of segments at least two of which have a controllable opacity;
- at least one photodetector underlying the segmented surface which detects light passing through the viewing surface and the segmented surface and generates detected light signals responsive to the intensity of the detected light;
- and
- a mapping system which, in an opacity determination mode, sequentially varies of the opacity of selected segments and which determines the opacity of portions of the transparency based on signals supplied during such sequential variation.
Apparatus having the dual function of display and optical mapping of transparencies comprising:
- a viewing surface to which the transparency is adjacent;
- a segmented surface underlying the viewing surface and having an array of segments, a plurality of which have a controllable opacity;
- a photodetector which detects light passing through the viewing surface and the segmented surface and supplies detected light signals responsive to the intensity of the detected light;
- and
- a mapping system which, in an opacity determination mode, sequentially varies selected ones of the plurality of segments in groups of segments and determines the opacity of portions of the transparency based on signals generated during such sequential variation.
Dependencies are inferred from the claim text.