Solutions for a high-speed wide-angle zoom lens with aspheric surfaces

Takanori Yamanashi

doi:10.1117/12.930547

19 October 2012 Solutions on a high-speed wide-angle zoom lens with aspheric surfaces

Takanori Yamanashi

Proceedings Volume 8488, Zoom Lenses IV; 84880I (2012) https://doi.org/10.1117/12.930547
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

Abstract

Recent development in CMOS and digital camera technology has accelerated the business and market share of digital cinematography. In terms of optical design, this technology has increased the need to carefully consider pixel pitch and characteristics of the imager. When the field angle at the wide end, zoom ratio, and F-number are specified, choosing an appropriate zoom lens type is crucial. In addition, appropriate power distributions and lens configurations are required. At points near the wide end of a zoom lens, it is known that an aspheric surface is an effective means to correct off-axis aberrations. On the other hand, optical designers have to focus on manufacturability of aspheric surfaces and perform required analysis with respect to the surface shape. Centration errors aside, it is also important to know the sensitivity to aspheric shape errors and their effect on image quality. In this paper, wide angle cine zoom lens design examples are introduced and their main characteristics are described. Moreover, technical challenges are pointed out and solutions are proposed.

Citation Download Citation

Takanori Yamanashi "Solutions on a high-speed wide-angle zoom lens with aspheric surfaces", Proc. SPIE 8488, Zoom Lenses IV, 84880I (19 October 2012); https://doi.org/10.1117/12.930547

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available