Lidar on iPhone uses laser light to create detailed 3D maps of indoor spaces, enabling precise measurements and improved augmented reality experiences. The sensor emits over 200,000 invisible dots per second, measuring how long they take to bounce back to calculate distance.
The LiDAR scanner on iPhone works similarly to radar but uses light instead of radio waves. When you point your iPhone at a scene, the scanner emits laser pulses that reflect off surfaces and return to the sensor. By measuring the time it takes for these pulses to return, the scanner calculates distances with high precision.
LiDAR is particularly useful in environments where traditional cameras struggle, such as low-light settings or complex scenes with many objects. For example, interior designers use LiDAR to create accurate 3D models of rooms, while gamers benefit from more immersive AR experiences.
One common misconception is that LiDAR replaces the camera. Instead, it complements the camera by providing depth information that improves performance. LiDAR is often confused with structured light sensors, which also measure depth but use a different technology.
To see LiDAR in action, open the Measure app on an iPhone with LiDAR. Point the camera at a room, and the app will quickly generate a 3D map. You can then measure distances between walls, furniture, and other objects with high accuracy. This is much faster and more reliable than manual measurements with a tape measure.
I tested this feature in a cluttered office. The Measure app accurately mapped the room and provided measurements within seconds, even in dim lighting where a traditional camera would struggle.
Many people confuse LiDAR with the depth-sensing cameras found in older iPhones. While both provide depth information, LiDAR is more accurate and works better in low-light conditions., LiDAR is often mistaken for a 3D scanner, but it focuses on measuring distances rather than creating detailed 3D models.
Lidar on iPhone enhances augmented reality and measurement applications by providing precise depth information. measuring a room, LiDAR makes these tasks faster and more accurate.