| http://www.w3.org/ns/prov#value | - Further, when using coherent light such as laser is used as the light source 19 of the display device 100, the brightness of the beam frame 7 and the warning indication 8 is desired to be equivalent to a light quantity that is equal to or lower than the class 2 of the laser safety standard defined in the International Standard IEC 825 by the International Electrotechnical Commission (IEC).
|
