How to identify chip packages/Optical package

LED: Light Emmiting Diode/Photo Diode

 * Sidelooker Detector (No Lens): IR receiver


 * Sidelooker Diode: IR transmitter


 * Sidelooker Detector: IR receiver


 * Thin Sidelooker


 * Sidelooker OPTOLOGIC: IR receiver w/ basic logic (Fairchild)


 * T-1 (3mm) Detector: IR receiver


 * T-1 (3mm) Diode: IR transmitter

Optical switches
            
 * Slotted Switch 8mm Gap: Optical interrupt switch
 * Slotted Switch Horizontal with Wires: Optical interrupt switch
 * Slotted Switch MOC: Optical interrupt switch
 * Slotted Switch QVA: Optical interrupt switch
 * Slotted Switch QVB: Optical interrupt switch
 * Slotted Switch High Profile: Optical interrupt switch
 * Slotted Switch H22: Optical interrupt switch
 * Slotted Switch H21: Optical interrupt switch
 * Slotted Switch 5mm Gap, 9mm Lead Spacing: Optical interrupt switch
 * Slotted Switch Wide Gap: Optical interrupt switch
 * Slotted Switch Logic H22: Optical interrupt switch
 * Slotted Switch Logic 5mm: Optical interrupt switch
 * Slotted Switch Logic H21: Optical interrupt switch


 * Stretch-247


 * Reflective Surface Mount Package


 * Surface Mount Switch Gap


 * Surface Mount Opto Interrupter QCK