Viewing device for the visually impaired

A viewing device 1 comprises a display unit 2 and a handheld optical device 3 connected to the display unit by means of a flexible lead 26. The optical device comprises a rotatable scroll wheel 6 for adjusting the degree of image magnification. This is achieved by moving an internal camera (40, see...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	FRANCIS ALAN JOHNSTON
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY HANDLING RECORD CARRIERS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PRESENTATION OF DATA RECOGNITION OF DATA RECORD CARRIERS
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