CLOSE-UP PHOTOGRAPHING DEVICE

PURPOSE:To easily change focal length from the outside by moving a close-up photographing slide knob, turning a driving lever by the movement of the knob, turning a lens part, and sliding the lens part forward or backward when it is desired to change the focal length. CONSTITUTION:The change of the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	SHIMIZU TSUGUO
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	PURPOSE:To easily change focal length from the outside by moving a close-up photographing slide knob, turning a driving lever by the movement of the knob, turning a lens part, and sliding the lens part forward or backward when it is desired to change the focal length. CONSTITUTION:The change of the focal length is performed by moving a slide lever 5 by moving the close-up photographing slide knob 6 and turning the driving lever 4 in which the tip part of the slide lever 5 is fitted. Therefore, the lens part 1 interlocking with the driving lever 4 via serrations 3 and 7 is turned, and is slided forward and backward by screw parts 2 and 8a between a lens seat 8. In such a way, it is possible to easily and surely change the focal length and to adjust a device at an ordinary mode or a close-up photographing mode.