Patent ID: 11927343
Assignee: nan
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  G  H | IPC F  H

Claim 11:
12. A lighting apparatus with a variable angle beam, the apparatus comprising:
a light source having an adjustable color temperature;
a light module driver configured to adjust currents applied to said light source to adjust said color temperature accordingly;
a liquid crystal beam shaping device with variable refractive indices for different colors having a lens driver configured to receive a fixed angle beam from said light source and to provide a variable angle beam in response to a control signal;
an angle adjustor interface for receiving an input beam angle and providing said control signal;
a CCT correction unit receiving one of said input beam angle and said control signal and controlling said light module driver to adjust a color temperature as a function of said variable angle to control a color-temperature variation in said variable angle beam caused by said beam shaping device.