Microphones; Color Sensor; Infrared Led; Infrared Camera - Lenovo ThinkBook 13x Gen 4 User Manual

Microphones

The microphones are the PC's built-in sound input devices. They capture your voice and ambient sound and
convert them into digital form. Microphones are essential components when you use your PC for video
conferencing or voice recording.

Color sensor

• Detect the surrounding light intensity and adjust the brightness of the built-in screen accordingly.
• Adjust the brightness and display CCT of the built-in screen.
Note: To turn off the automatic brightness adjustment and adaptive color, type display settings in the
Windows search box and then press Enter.

Infrared LED

The infrared LED generates and emits near-infrared waves that are received and used by a camera (or a
dedicated infrared camera) for facial recognition.

Infrared camera

The infrared camera receives near-infrared waves emitted by an infrared LED and reflected by a human face.
It is used for facial recognition.

Camera

The built-in camera captures visible light and converts it to digital signals. It is used for video recordings and
video conferencing.

Camera light

The camera light indicates whether the camera is activated.
Table 1. Camera light status and description
Camera light status
On
Off

Time-of-flight sensor

The time-of-flight sensor (also referred to as a ToF sensor) emits an infrared laser and uses the reflected
infrared energy to measure the distance and depth of objects in front of it. The data collected by the sensor
can be used to detect human presence or recognize gestures.
Note: The infrared laser emitted by the ToF sensor is invisible to the human eye.

Screen

The screen of the built-in display is where text, graphics, and videos are displayed.
Some models offer touch-enabled screens, which allow you to interact with your PC by intuitively touching
buttons, icons, and menu items displayed on the screen. Touch-enabled screens also support multi-finger
gestures.
Related topics
2
User Guide
Description
The camera is activated.
The camera is not activated.