Diffractive lens in 8-10 to um forward-looking infrared

Jun-ichi Kudo; Hideo Wada; Toshihiro Okamura; Masako Kobayashi; Kunihiro Tanikawa

doi:10.1117/1.1487365

1 August 2002 Diffractive lens in 8-10 to um forward-looking infrared

Jun-ichi Kudo, Hideo Wada, Toshihiro Okamura, Masako Kobayashi, Kunihiro Tanikawa

Optical Engineering, Vol. 41, Issue 8, (August 2002). https://doi.org/10.1117/1.1487365

We realize for the first time a forward-looking IR (FLIR) system using a diffractive optical element (DOE) in its optics made of germanium in the 8- to 10-?m IR wavelength. We describe the design and the performance of the DOE optics. The IR diffractive lens made of germanium is proposed to correct the axial chromatic aberration in optics of the FLIR system. Compared with conventional optics of an FLIR system the optics using a DOE singlet instead of ZnSe achromat, we have a DOE system modulation transfer function (MTF) that is almost equal to the conventional one. The DOE singlet instead of ZnSe achromat appears to be enough to compensate for the chromatic aberration of the optical system. Using the DOE system, the numbers of lens elements, the mass, and the cost are reduced.

©(2002) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Jun-ichi Kudo, Hideo Wada, Toshihiro Okamura, Masako Kobayashi, and Kunihiro Tanikawa "Diffractive lens in 8-10 to um forward-looking infrared," Optical Engineering 41(8), (1 August 2002). https://doi.org/10.1117/1.1487365

Published: 1 August 2002

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