Device for guiding a film in an optoelectronic apparatus such as a scanning analyzing device
AssigneeKis
InventorPatrice Lavergne
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Abstract
A device for guiding a film in an apparatus comprises guiding and driving means engaged on the two lateral edges of the film. The guiding and driving means is further designed to force the film to follow a curved trajectory in the imaging zone of the apparatus. The means guiding and driving the film include two coaxial rollers whereon the film is urged to span through its two edges, and two parallel driving belts urged respectively to be supported on said edges on the side opposite the rollers, along an arc with predetermined sustaining angle. The invention is useful for guiding film in an optoelectronic apparatus such as a scanning analysis device.
Claims12
A device for guiding a film, comprising means of guiding and driving engaged on two lateral edges of the film, these guiding and driving means furthermore being designed in such a way as to force the film to follow a curved trajectory in an imaging zone of an optoelectronic apparatus, and said guiding and driving means comprise two coaxial and mutually independent rollers, upon which the film bears by its two lateral edges, and two parallel drive belts respectively bearing on the said edges on a side opposite one facing the rollers, along an arc of circle of predetermined angle subtended at a center.
Dependencies are inferred from the claim text.