Title :
Lightweight and low cost lens for infrared sensors using a computer generated hologram
Author :
Yoshida, Shuhei ; Yoshida, Naruki ; Ohuchi, Yasuhiro ; Yamamoto, Manabu
Author_Institution :
Grad. Sch. of Ind. Sci. & Technol., Tokyo Univ. of Sci., Noda, Japan
Abstract :
Infrared (IR) sensors are used for various purposes, such as human body detection. This study concerns the development of downsized, low-cost lenses for IR sensors, and it is argued that computer generated holograms (CGH) are applicable to a lens. Lenses with CGH are inexpensive and lightweight since they can be mass-produced by using stampers, similar to compact discs. This study shows that lenses with CGH can detect IR with excellent angular resolution with a viewing angle of up to plusmn60deg.
Keywords :
computer-generated holography; infrared detectors; computer generated hologram; human body detection; infrared sensors; low cost lens; stampers; Automatic control; Cameras; Costs; Humans; Infrared detectors; Infrared sensors; Lenses; Optical computing; Vehicle detection; Vehicles; CGH; IR; component; computer generated hologramr; infrared; sensor;
Conference_Titel :
Optomechatronic Technologies, 2009. ISOT 2009. International Symposium on
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-4209-6
Electronic_ISBN :
978-1-4244-4210-2
DOI :
10.1109/ISOT.2009.5326103
