Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

All-reflective optical bifocal zooming system without moving elements based on deformable mirror for space camera application

Not Accessible

Your library or personal account may give you access

Abstract

The space camera with variable focal length is capable of capturing images with variable resolution and variable field of view. This is useful for space-borne reconnaissance because the camera can switch between coarse and fine reconnaissance flexibly. However, the traditional optical zooming relies on moving elements which might influence the momentum balance of the satellite platform. Therefore, we present a prototype design using the piezo deformable mirror (PDM) to realize an all-reflective optical bifocal zooming system. By changing the curvature radius of the PDM, the focal length can be switched between 48 and 192 mm without moving elements involved. With the focal length experiencing 4× magnification, the system performance is still approaching diffraction-limited performance, and the maximum stroke of the PDM is also within its physical limits. Experiments demonstrate that the principle is correct and the design is successful.

© 2013 Optical Society of America

Full Article  |  PDF Article
More Like This
Optical zoom module based on two deformable mirrors for mobile device applications

Yu-Hung Lin, Yen-Liang Liu, and Guo-Dung J. Su
Appl. Opt. 51(11) 1804-1810 (2012)

Optical zoom camera module using two poly-dimethylsiloxane deformable mirrors

Yu-Hung Huang, Hsiang-Chun Wei, Wei-Yao Hsu, Yuan-Chieh Cheng, and Guo-Dung John Su
Appl. Opt. 53(29) H248-H256 (2014)

Design of an all-reflective unobscured optical-power zoom objective

Kristof Seidl, Jens Knobbe, and Heinrich Grüger
Appl. Opt. 48(21) 4097-4107 (2009)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (27)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (5)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved