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US 5,309,329 AGranted
Flash device for dye transferring
AssigneeEastman Kodak Company
InventorsReinhold Thiel, Ulrich Staiger, Olaf Kosanke, Volker Gericke
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AssigneeEastman Kodak Company
InventorsReinhold Thiel, Ulrich Staiger, Olaf Kosanke, Volker Gericke
Estimating the term…
The invention relates to a flash device, preferably for transferring a dye matrix which by means of a high-energy light flash is transferred from a radiation-absorbing carrier film by interleaving a mask onto a receiver element. This requires substantially perpendicular irradiation of the transfer plane with a high-energy radiation and a high uniformity of irradiance distribution of the light flash. To achieve this, one or two linearly extending plasma discharge tubes are provided which to concentrate radiation are enclosed by two separate aspheric-cylindrical reflectors, the concentrated radiation being directed through a lamellar louver element arranged downstream of the reflector and impinging on the predetermined transfer plane in a substantially parallel and perpendicular manner.
A flash device for directing high-energy light flash, to a dye transfer plane, such device being usable for dye transfer such as by transferring dye particles from a radiation-absorbing carrier film which is provided with a sublimable dye layer through a mask onto a receiver element, e.g. glass plate or the like, comprising at least one linearly extending plasma discharge tube means defining an aspheric-cylindrical reflector which concentrates radiation from the tube;
Dependencies are inferred from the claim text.