Related by context. Frequent words. (Click for all words.) 68 infrared 61 infra red 61 photodiode 61 photocell 61 near infrared NIR 60 sensor 60 diffractive 60 ultraviolet UV 59 InGaAs 58 transmissive 58 interferometric 58 optical 58 uncooled 58 photometer 57 pulsed laser 57 LCD backlighting 57 LED illumination 57 Infrared 56 transflective 56 PTZ cameras 56 photoluminescence 56 LCD backlight 56 UV LED 56 crystal oscillator 56 photodetector 56 capacitive sensing 55 electromagnetic interference EMI 55 demodulators 55 RGB LED 55 LED arrays 55 opto 55 Tunable 55 High Intensity Discharge 55 photometry 55 ON OFF 55 VCSELs 55 optics 54 CCD camera 54 radio frequency RF 54 TCXO 54 sensor arrays 54 emissivity 54 Light Emitting Diode LED 54 nm wavelength 54 ionisation 54 phosphors 54 thermistor 54 Capacitive 54 antenna arrays 54 3CCD 54 interferometry 54 Radio Frequency RF 54 RFID transponders 53 photoelectric 53 absorbance 53 opto electronic 53 pulse width modulation PWM 53 electrochromic 53 backlit LCD display 53 EMI RFI 53 Infra Red 53 illuminator 53 photodiodes 53 micro optics 53 solenoid valve 53 photometric 53 infrared rays 53 tunable 53 reticle 53 sensors 52 infrared imaging 52 CCD sensors 52 downlight 52 electrophoretic 52 thermocouple 52 infrared laser 52 optocoupler 52 attenuators 52 FT IR 52 thermocouples 52 reflective coatings 52 VCSEL 52 confocal 52 frequency HF 52 #-# mA 52 ZL# [003] 52 baluns 52 incandescent lamp 52 electroluminescent 52 interferometers 52 laser 52 optical wavelengths 52 chemiluminescent 52 imager 52 programmable 52 SmartBeam 52 frame grabbers 51 photodetectors 51 SAW filters 51 tunable laser 51 tunable lasers