| 摘要 |
<p>PURPOSE: To provide a condensing device which is inexpensive and also efficient for a film scanner. CONSTITUTION: This device condenses from a dispersive irradiation light source 54 and also forms a diffusive irradiation line of uniform intensity on a film scanning flat surface 25. The device is provided with a cavity 26 which has a diffusive reflection wall that forms an incoming radiation port 44 of one end part to which light is introduced from the light source 54 and a vertical slit 32 that is provided with a side wall 27 from which diffused light that reflects and is condensed injects, a guiding light bar 30 which guides light from the slit 32 and injects guided light from an end plane that adjoins a scanning flat surface 25 and is sealed, a light incident member 40 which condenses and guides light that disperses to the port 44 of the condensing cavity 26 from the light source 54 and a sealing means 48 which is formed by permeable material on the member 40 against light which is injected from the light source 54 and seals the cavity 26 from staining infiltration.</p> |
