Patent ID: 11936161
Assignee: LAP GMBH LASER APPLIKATIONEN
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A device for laser projection comprising:
a base plate;
a first support plate and a second support plate;
a first laser diode mounted to the first support plate and configured to emit a first linearly polarized laser beam extending along a first polarization axis;
a second laser diode mounted to the second support plate and configured to emit a second linearly polarized laser beam extending along a second polarization axis that is perpendicular to the first polarization axis, wherein the first support plate and the second support plate are coupled to the base plate, wherein the first and second laser diodes are configured with a same wavelength;
a focusing optical system adjustably positioned relative to a projection surface, wherein the first and second linearly polarized laser beam each pass through the focusing optical system;
a polarization combiner configured to combine the first and second linearly polarizing laser beams exiting the focusing optical system into a combined laser beam, wherein the combined laser beam comprises one of: (1) circular polarization; and (2) elliptical polarization;
two galvanized mirrors configured to direct the combined laser beam in any direction;
a measuring device configured to measure an intensity of the combined laser beam; and
a control unit configured to receive the measured intensity of the combined laser beam and further configured to adjust an intensity of at least one of: (1) the first laser diode; and (2) the second laser diode.