| 摘要 |
FIELD: information technologies. ^ SUBSTANCE: in a working area (38) of a device there is a lighting device (36), designed to light up a valuable document (12) and having at least one laser diode (50) of surface radiation with a vertical resonator, a control device (42) to control a laser diode (50) with vertical resonator and a detector device (40) to detect optical radiation emitted from the device working zone (38). ^ EFFECT: increased quality of light and compactness of optical examination devices. ^ 32 cl, 13 dwg |
