CAMERA OBJECTIVE LENS WITH INFRARED FILTER AND CAMERA MODULE WITH CAMERA OBJECTIVE LENS

PURPOSE: A camera objective lens with an infrared filter and a camera module with the camera objective lens are provided to design the optical system of the camera module even more compact without sacrificing the infrared filter while improving the optical properties of camera modules. CONSTITUTION:...

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Bibliographic Details
Main Authors REICHEL STEFFEN, LENTES FRANK THOMAS, MENNEMANN KARL
Format Patent
LanguageEnglish
Korean
Published 21.10.2013
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHOTOGRAPHY
PHYSICS
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Summary:PURPOSE: A camera objective lens with an infrared filter and a camera module with the camera objective lens are provided to design the optical system of the camera module even more compact without sacrificing the infrared filter while improving the optical properties of camera modules. CONSTITUTION: A lens system (1) for a camera module (3) is an achromatic lens system having two lenses. A first lens (5) has a positive focal length. A second lens (7) has a negative focal length. The first lens is made of glass containing copper ions which absorbs infrared light and functions as an infrared filter. The second lens has an Abbe number which is smaller than an Abbe number of the first lens.
Bibliography:Application Number: KR20130038429