(LED) Light Emitting Diode

(light-)frequency modulation

[endoscopic]cold light source

[endoscopic]light guide bundles

[endoscopic]light guide connector section

[laser] light scattering detector

100% low-floor light rail vehicle

1550 nm light transmission of sub-carrier modulate trunk

193nm light source

1organic light-emitting devices

2MQES light field

2MQES light-field

3-chip light engine

3D light-matching curve

3rd generation synchrotron light source

Ⅲ-Nitride based light-emitting diodes

4f cross light path

4MFSS light field

55Q light rail

70% low-floor light rail vehicles