Panasonic Technical Journal Vol. 59 No. 2 Nov. 2013 Environmental Resistance Technology of Outdoor Surveillance Camera Takaya Kamimura Izumi Satou Jouji Wada Tamotsu Uchida Yuuya Jikihara Hideki Yasuda -50 50 50 J Security cameras installed in an outdoor environment are expected to keep capturing images even under tougher and more severe conditions than those faced by indoor cameras which are installed in areas closer to the living environment. In this section, we will explain our original mechanism technologies which make it possible to use security cameras even under tough and severe conditions as follows, and we describe the process of evaluating each technology. These technologies include one that makes it possible to use the camera under a wide temperature range of -50 to +50 degrees centigrade; a technology to make the camera resistant to an impact of up to 50 joules; a mechanism to give it water resistance (can even withstand a powerful water jet) and dust resistance; and a technology to give the camera other types of robustness such as robustness against damage from salt, exposure, wind and snow, condensation, adhesion of water drops, and deterioration of image quality caused by soil. 201120165115 % Growth of security business 1 IPInternet Protocol NTSCNational Television System CommitteePALPhase Alternating LineH.264 HD High Definition 4K2K DSPDigital Signal Processor
Panasonic Technical Journal Vol. 59 No. 2 Nov. 2013 DSP 1 2 3 4 5 PTZPan Tilt Zoom PTZ f : f t : 1 1 1 f ( f + f 1 t = 1 d ) Outdoor PTZ camera f 1 f d
Δ f = f 1 f 1 2 20 20 50 Auto Eyelid MechanismAEM Example of auto eyelid mechanism OFF 300TVON800TV Effect of auto wink function Principl of rain wash coat and the effect 7 1
Panasonic Technical Journal Vol. 59 No. 2 Nov. 2013 IR InfraRed IR C/L Mode B/W Mode AB BC Mechanism of auto back focus Shift of Wavelength Mechanism of plate spring type auto back focus Auto Back Focus 3 / 4 Implementation of auto back focus
2 Mechanism of auto cleaning 8 m 11.5 m3 1 5 kg 1 m50 J 50 J mm
Panasonic Technical Journal Vol. 59 No. 2 Nov. 2013 ff 2 2.32 2 Mechanism of vandal proof