Design of Compact Infrared Zoom Lens System

2012 ◽  
Vol 571 ◽  
pp. 324-327
Author(s):  
A Qi Yan ◽  
Deng Shan Wu ◽  
Hao Wang ◽  
Jian Zhong Cao ◽  
Jing Jin Ma ◽  
...  

Infrared zoom lens system with cooled focal plane array (FPA) detector is widely used in military application. Relevant information about optical design can be got easily, but research on infrared zoom lens system with low cost and high image quality for commercial application is less. This paper design a Compact infrared zoom lens system with only four lenses, using an uncooled focal plane array (FPA) with 384×288 pixels with zoom ratio 3:1. Because of large F number and less lenses, transmission of the whole zoom system is greatly improved. NETD and MRTD of infrared system will be satisfying by this compact design. There is no special surface such as diffractive surface, HOE in zoom lens system, and only Ge and Znse infrared materials are chosen which result in lower production cost of infrared zoom lens system for commercial applications.

2006 ◽  
Vol 132 (1) ◽  
pp. 129-138 ◽  
Author(s):  
C. Calaza ◽  
N. Viarani ◽  
G. Pedretti ◽  
M. Gottardi ◽  
A. Simoni ◽  
...  

2011 ◽  
Author(s):  
Decosta Lindsay ◽  
James W. Bangs ◽  
John Vampola ◽  
Frank Jaworski ◽  
Lynn Mears ◽  
...  

2005 ◽  
Author(s):  
S.C.H. Wang ◽  
G. Dudoff ◽  
S. Jost ◽  
J. Roussis ◽  
J. Voelker ◽  
...  

2005 ◽  
Author(s):  
S.C.H. Wang ◽  
G. Dudoff ◽  
S. Jost ◽  
J. Roussis ◽  
J. Voelker ◽  
...  

2001 ◽  
Author(s):  
Timothy R. Beystrum ◽  
Niels Jacksen ◽  
Marcus L. Sutton ◽  
Mark K. Preis ◽  
Charles F. Walmsley

2014 ◽  
Vol 981 ◽  
pp. 46-49
Author(s):  
Xi Qu Chen ◽  
Qiang Lv

In this paper, a low-cost and modularized test bench for microbolometric focal plane array is proposed. Based on the analysis of driving microbolometric focal plane array, we have set up the simple test bench. The test bench consists of four major modules: optical part, driving sequence timer, power supply and signal processing board, and data analyzer. Each module in the test bench is reconfigurable and the driving sequence timer is programmable in system. The proposed test bench is low-cost and has been applied to practical microbolometric focal plane arrays in our laboratory.


1997 ◽  
Vol 14 (2) ◽  
pp. 179-188 ◽  
Author(s):  
Craig H. Smith ◽  
Toby J. T. Moore ◽  
David K. Aitken ◽  
Takuya Fujiyoshi

AbstractWe have built an imaging polarimeter for use at mid-infrared wavelengths (i.e. N band or 8–13 μm). The detecting element is a 128 × 128 element Si:Ga Focal Plane Array, supplied by Amber Engineering, USA. The polarimeter itself provides diffraction limited images on a 4-m class telescope and has a field of view of about 32 arcsec of sky with 0·25 arcsec pixels. We describe the optical design, control electronics, observing modes and detector sensitivities. Also presented are some observational results to demonstrate the power of this new imaging polarimetric system.


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