Active Infrared Illumination for CCTV

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The use of closed circuit television (CCTV) or security cameras is growing. Because most crimes are committed at night, security camera systems feature infrared illumination. The two critical performance factors used to evaluate infrared emitters for CCTV are radiant intensity and degradation. High radiant intensity yields longer illumination distance and greater resolution. Low degradation minimizes resolution loss over time.

Vishay’s TSHG5210 and TSHG5410 infrared emitters outperform the competition in radiant intensity and minimum degradation, see Table 1. Adding to their competitive edge, the TSHG5210 and TSHG5410 can be driven at 100mA DC, while the competitors recommend only 50mA. The angle of half intensity of the TSHG5210 is ±10°, while the TSHG5410 is ±18°; the most commonly used. The peak wavelength of these emitters is 850nm; matched to CCTV camera sensors. Each camera will typically use from 50 to 100 emitters, so volumes are very high.

 

FEATURES Emission wavelength: 850nm High power: 50mW at 100mA Low forward voltage at high currents: 2.9V at 1A Industry’s standard viewing angles: ±10° and ±18° Highest radiant intensity: 230mW/sr and 90mW/sr Lowest degradation while operating at 100mA DC

APPLICATIONS Illumination for security cameras Fill lighting for web cams General and flash lighting for CCD and CMOS cameras Smoke detectors

 

 

 

To view Vishay’s entire line-up of IR emitters, please visit.

 

 Featured Products

Part Number		Description	Data Sheet	App. Notes
TSHG5210		High Speed Infrared Emitting Diode, 850nm, GaAlAs Double Hetero, ±10º
TSHG5410		High Speed Infrared Emitting Diode, 850nm, GaAlAs Double Hetero, ±18º

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