| 摘要 |
PURPOSE:To provide a small image forming device which can form a clear and accurate latent image on a sensitive film by registering completely positions of lenses supported on a lens plate and positions of pixel arrays placed on a base plate, converting light passing through respective lenses into parallel light and deepening the depth of focus. CONSTITUTION:A device consists of a lens plate 3 on which a plurality of lenses 6 are disposed and supported in the straight line shape at the given intervals, and a base plate 1 on which a number of pixel arrays 2 are disposed and placed in the straight line shape, and the lens plate 3 and the base plate 1 are combinedly fixed in a manner of making respectie lenses 5 and respective pixel arrays 4 corresponding one-to-one. The thermal expansivity of the lens plate 3 supporting the lenses 6 and the expansivity of the base plate 1 on which pixel arrays 2 are placed are made substantially same, and microlens arrays 4a consisting of a plurality of microlenses 4 arranged in the straight line shape are disposed on the lens plate 3. |
