Invited Review Paper

[OPTICAL REVIEW Vol. 21, No. 6 (2014) 745-751]
© 2014 The Japan Society of Applied Physics

Optical Design of the High-Power Zoom Lens

Daisuke ITO

Lens Product Development Center, Canon Inc., Utsunomiya 321-3298, Japan

(Accepted February 8, 2013)

We have developed a high-power zoom lens for PowerShot SX30IS, which is the Canon compact digital camera with 35× zoom ratio lens (f = 4.3–150.5/F 2.7–5.8). This taking lens attains a compact size by PNPNP zoom type. And the taking lens attains the high resolution by a material of “Hi Index Ultra Low Dispersion”, which we call “Hi-UD lens”.

Key words: Hi-UD lens, PNPNP zoom type


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