Imaging system

Details Imaging system Imaging system

2003-07-15

2008-08-19

Ho, Tuan (Department: 2622)

Television

Camera, system and detail

Optics

C348S240990, C348S240300, C348S335000, C348S342000, C348S360000, C359S676000, C359S691000, C359S692000, C359S739000, C359S740000, C396S451000

Reexamination Certificate

active

07414665

ABSTRACT:
The invention relates to an imaging system in which, while high image quality is maintained with the influence of diffraction minimized, the quantity of light is controlled, and which enables the length of the zoom lens to be cut down. The imaging system comprises a zoom lens comprising a plurality of lens groups G1and G2wherein the spacing between individual lens groups is varied to vary a focal length and an aperture stop located in an optical path for limiting at least an axial light beam diameter, and an electronic image pickup device I located on the image side of the zoom lens. The aperture stop has a fixed shape, and a filter S2for performing light quantity control by varying transmittance is located on an optical axis of a space located at a position different from that of a space in which the aperture stop is located.

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