Abstract: Techniques for generating an indication of ambient light intensity are provided. The techniques include obtaining a set of one or more low light level measurements during a low light level display panel period of a display; obtaining a set of one or more high light level measurements during a high light level display panel period of the display; generating an ambient light level result based on analysis of the set of one or more low light level measurements, the set of one or more high light level measurements, and calibration information; and controlling brightness of the display based on the ambient light level result.

Abstract: Techniques for generating an indication of ambient light intensity are provided. The techniques include obtaining a set of one or more low light level measurements during a low light level display panel period of a display; obtaining a set of one or more high light level measurements during a high light level display panel period of the display; generating an ambient light level result based on analysis of the set of one or more low light level measurements, the set of one or more high light level measurements, and calibration information; and controlling brightness of the display based on the ambient light level result.

Abstract: Techniques for generating an indication of ambient light intensity are provided. The techniques include obtaining a set of one or more low light level measurements during a low light level display panel period of a display; obtaining a set of one or more high light level measurements during a high light level display panel period of the display; and generating an ambient light level result based on analysis of the set of one or more low light level measurements, the set of one or more high light level measurements, and calibration information.

Abstract: The present invention discloses an illumination apparatus and an optical radiation control method. The illumination apparatus includes at least one light emitting module, an optical detector, a temperature calculating module and a control module. These emitting modules are for producing a light beam and the control module is for generating a PWM signal to drive the emitting modules. The optical detector electrically connected to the control module is for detecting the optical radiation of light emitted from the light modules. The temperature calculating module is for calculating the temperature of the illumination apparatus based on the PWM signal and a predetermined PWM width. The control module can adjust the optical radiation of light emitted from the light modules based on the temperature and the detected data of the optical detector.