| 
 型号  MODEL  | 
 BL-639D  | 
 BL-638D  | 
 BL-637D  | 
 BL-636D  | 
| 
 成像器件  Pick-up Device  | 
 1/3 “ SONY SupperHAD CCD  | 
 1/3 “ SHARP CCD  | 
 1/4 “ SONY SupperHAD CCD  | 
 1/4 “ SHARP CCD  | 
| 
 感觉面积  Scanning Area  | 
 4.9mm(H) x 3.7mm(v)  | 
 3.6mm(H) x 2.7mm(v)  | 
| 
 图像像素  Picture Element  | 
 PAL:500 (H)x582(V)NTSC:510(H)x492(V)  | 
| 
 电视系统  TV System  | 
 PAL / NTSC  | 
| 
 水平解析度Horizontal Resolution  | 
 420TV Lines  | 
| 
 最低照度 Minimum Illumination  | 
 IR ON 0Lux  | 
| 
 信噪比    S/N Ratio    | 
 More than 48dB  | 
| 
 自动电子快门AutoElectronicShutter  | 
 PAL:1/50s-1/100,000s  NTSC:1/60s-1/100,000s  | 
| 
 伽玛校正  Gamma Characteristic  | 
 0.45  | 
| 
 增益控制Auto Gain Control  | 
 Auto  | 
| 
 白平衡 Auto White Balance  | 
 Auto  | 
| 
 背光补偿Back Light Compensation  | 
 Auto  | 
| 
 同步系统 Synchronous System  | 
 Internal Synchronization  | 
| 
 镜头安装 Lens Mount  | 
 Board  Lens:3.6/6mm  | 
| 
 视频输出 Video Output  | 
 1.0Vp-p, 75Ω,BNC Connector  | 
| 
 红外灯距离InfraredLampsIrradiationDistance  | 
 15M  | 
| 
 防护等级Protection Rate  | 
 IP66  | 
| 
 电源 Power Supply  | 
 DC 12V 土10%  | 
| 
 耗电流Power Consumpiton  | 
 110mA(IR ON MAX310mA)  | 
 60mA(IR ON MAX360mA)  | 
 110mA(IR ON MAX 310mA)  | 
 60mA(IR ON MAX 260mA)  | 
| 
 工作温度Operating Temperature  | 
 -10℃~+50℃  | 
| 
 尺寸Dimensions(W x D x H)  | 
 φ57 x 95mm  | 
| 
 重量Weight(g)  | 
 374g  | 
| 
 材质Material  | 
 铝合金Aluminum alloy  |