Four Element Opto-Mechanical Compensation Varifocal (Zoom) Systems

E. K. Murthy; P. K. Goel; V. V. Rao

doi:10.1117/12.949285

14 February 1986 Four Element Opto-Mechanical Compensation Varifocal (Zoom) Systems

E. K. Murthy, P. K. Goel, V. V. Rao

Author Affiliations +

Proceedings Volume 0554, 1985 International Lens Design Conference; (1986) https://doi.org/10.1117/12.949285
Event: 1985 International Lens Design Conference, 1985, Cherry Hill, United States

Abstract

An attempt has been made to modify Bergstein's iteration design procedure for the four element optcal-compensation varifocal system. Here all available degrees of freedom are made use of, to satisfy the desired conditions in practical systems under consideration. It has been concluded that most of the procedures claimed after Bergstein, can be derived as special cases of the proposed procedure. A minor mechanical movement to the central stationery element of the zoom unit has been proposed to reduce the magnitude of image oscillations further, resulting in opto-mechanical compensation system, and this minor movement also has been envisaged to provide explanation for the different possible profiles of the movement followed in other solutions of four element opto-mechanical compensation zoom systems.

Citation Download Citation

E. K. Murthy, P. K. Goel, and V. V. Rao "Four Element Opto-Mechanical Compensation Varifocal (Zoom) Systems", Proc. SPIE 0554, 1985 International Lens Design Conference, (14 February 1986); https://doi.org/10.1117/12.949285

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
17 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Zoom lenses

Lens design

Chemical elements

Optical components

Control systems

Computing systems

Fourier transforms

Show All Keywords

Keywords/Phrases

Search In:

Publication Years