MICROFILM RETRIEVING/READING DEVICE
PURPOSE:To prevent the stick of dust on an optical system, and to facilitate maintenance by storing a projecting lens and an image sensor in a case to form hermetically closed room together with a transparent plate. CONSTITUTION:A reader unit 50 is provided with a glass plate 54 as an example of the...
Gespeichert in:
1. Verfasser: | |
---|---|
Format: | Patent |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Schreiben Sie den ersten Kommentar!