Wide-angle lens optical system

A wide-angle lens optical system includes, from an object side to an image side, a focus lens group (FG) having a positive refractive power and a fixed lens group (FL) having a negative refractive power. The focusing lens group (FG) can move along the optical axis for focusing, and the fixed lens gr...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	TONG QING, KOYANAGI MASAHIKO, MIYATANI SOTA, ANZAWA TAKUYA, HORIDAN ATSUSHI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A wide-angle lens optical system includes, from an object side to an image side, a focus lens group (FG) having a positive refractive power and a fixed lens group (FL) having a negative refractive power. The focusing lens group (FG) can move along the optical axis for focusing, and the fixed lens group (FL) is fixed on the most image side adjacent to the imaging surface (IMG), so that the back focus is also fixed. 一种广角透镜光学系统，从物侧到像侧包括具有正屈光力的聚焦透镜组(FG)和具有负屈光力的固定透镜组(FL)。所述聚焦透镜组(FG)可沿着光轴移动进行聚焦，而所述固定透镜组(FL)固定在邻近成像面(IMG)的最靠像侧，使得后焦也被固定。