| 摘要 |
PURPOSE:To facilitate the cleaning, by setting a light source device containing a condenser lens and a light source lamp and opposing to a microfilm holding part in such way that the light source device can move to or from the microfilm holding part. CONSTITUTION:A light source device 2 consists of a mobile housing 10 containing a light source lamp 4, a condenser lens 6 and a reflector 8. The housing 10 is stored movably into the main body 12 of a microfilm copying machine and fixed to the main body 12 by means of a catch member 14. A microfilm holding member 18 is set under the device 2 to hold a microfilm 16, and a projection lens 20 is set under the member 18. In another example, a part of the side wall of a mobile housing 30 is used as a door 32. The door 32 is opened with the housing 30 lifted up to facilitate the exchange of the lamp 4 and the cleaning within the housing 30. |
