Design of compact camera zoom lenses with high zoom ratios

Takanori Yamanashi

doi:10.1117/12.279091

25 September 1997 Design of compact camera zoom lenses with high zoom ratios

Takanori Yamanashi

Proceedings Volume 3129, Zoom Lenses II; (1997) https://doi.org/10.1117/12.279091
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

The process behind compact cameras, capable of achieving high zoom ratios are described. In addition to the development of a suitable new type of zoom lens, the internal focusing is essential to the design. The study focuses upon current major lens types, especially a three-group zoom lens which are composed of positive, positive and negative refractive powers for respective lens groups. First, requirements on the development of zoom lenses are described. Then properties of lens types are discussed. Using similar specifications, applications of standard zoom lenses providing higher aperture are shown. The characteristics of these zoom lenses are then summarized.

Citation Download Citation

Takanori Yamanashi "Design of compact camera zoom lenses with high zoom ratios", Proc. SPIE 3129, Zoom Lenses II, (25 September 1997); https://doi.org/10.1117/12.279091

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