What does ALS stand for?

It incorporates an ambient light sensor which automatically adjusts lighting levels in response to the lighting around, preserving battery life and making the screen easy to view.

Silicon Laboratories has also announced its Si11xx family of proximity-sensors and ambient light sensors the built-in capabilities of which include single-pulse per measurement operation as well as a 'touchless' proximity-sensing system that lets users activate sensors with just the wave of a hand.

As with the EOS 5D Mark II, an ambient light sensor on the side of the screen can set brightness automatically depending on the environment.

You can also outsmart your Apple iPhone 3G by fooling the handsets ambient light sensor that is located above the earpiece which uses less power by reducing the display light of the screen when held in a dark environment.

Sony's Vaio TT Intel Core 2 Duo with an ambient light sensor that varies the brightness of the 11.

Among its advanced features are a direct ambient light sensor interface for brightness control, multi-mode dimming options using PWM and/or analog signals that can deliver up to a 25,000:1 dimming ratio, ultrasonic pulse skipping for audible noise reduction, low standby current and safety protection including on-chip thermal shut-down, over-voltage protection, opened and shorted LED protection.

The ambient light sensor adjusts brightness and saves power, and the accelerometer knows when to switch between landscape and portrait orientation.

1-in display with ambient light sensor (ALS), glass overlay and anti-reflective coating for better viewing in sunlight.