초록 ▼

An optical receiving system for thermal radiation is useable, with slight modification, for the simultaneous, low-loss reception of laser radiation and is nevertheless still composed of standard, common modules. To this end, a geometrical out-coupling of the laser radiation out of the shared receivi

An optical receiving system for thermal radiation is useable, with slight modification, for the simultaneous, low-loss reception of laser radiation and is nevertheless still composed of standard, common modules. To this end, a geometrical out-coupling of the laser radiation out of the shared receiving channel following a scanner and the geometrical separation of the thermal and laser radiations is provided, whereby the out-coupled laser radiation, separated from the thermal radiation, is directed via a simple optical assembly onto a preferably shared sensor. For the utilization of the common reception channel and, thus, of the reception optics as well for the emission of the laser radiation, the transmission radiation can be coupled into the separated laser reception channel via a polarization separating filter. By so doing, the transmission optics is eliminated, whereby good optical conditions for the transmission radiation are established without deterioration of the common reception channel.

대표청구항 ▼

An optical system for receiving laser radiation and thermal radiation, comprising: a laser transmitter having an optical transmission axis and combined with a thermal image device, scan means including a movable scan mirror operable to cyclically pivot back and forth; a common receiving channel havi

An optical system for receiving laser radiation and thermal radiation, comprising: a laser transmitter having an optical transmission axis and combined with a thermal image device, scan means including a movable scan mirror operable to cyclically pivot back and forth; a common receiving channel having an optical axis parallel to the optical axis of the transmitter laser, for receiving laser and thermal radiations and directing the same onto said scan mirror; separation means optically coupled to said scan mirror for separating the laser and thermal radiations into separate convergent beam cones which proceed in different directions due to the movement of said scan mirror; detector means; and out-coupling means for receiving and coupling the separated radiations onto said detector means.