Abstract
In this Letter, a novel and compact freeform off-axis three-mirror imaging system
and its detailed design method are proposed. The primary mirror and tertiary mirror of
the system have the same surface analytical expression and they are integrated on one
single freeform surface. In this way, the alignment process is made much easier due to
the much fewer degrees of freedom. In addition, the difficulty and cost for the data
handling, fabrication, and testing of the freeform surfaces and system can also be
significantly reduced in some cases, especially compared with the configuration having
multiple surfaces of different expressions integrated on one monolithic substrate. The
final system has a 100 mm effective focal length and a 4°×3° field of view. The
modulation transfer function of the system is close to the diffraction-limit.
© 2016 Chinese Laser Press
PDF Article
More Like This
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
Add to BibSonomy