Data Sheet

Functional description VL53L1X
14/35 DocID031281 Rev 2
2.8 Sensing array optical center
VL53L1X module includes a lens that focus the photons on the 16x16 SPADs sensing array.
The sensing array optical center specification takes into account the part-to-part variation in
production.
The optical center is defined by coordinates (Xo and Yo).
The optical center is measured for each part during a factory test at STMicroelectronics. The
coordinates are stored in the VL53L1X non-volatile memory and are readable by the
customer through the software driver in the application. This helps optimize design
alignment with the camera and ranging performances in the application.
The green array in Figure 10: Optical center specification gives the possible location of the
optical center.
Figure 10. Optical center specification
For more details please refer to VL53L1X API user manual (UM2356)
Table 5. Optical center specification
Parameter Min. Typ. Max. Unit
Xo offset -2 0 2
SPAD
Yo offset -2 0 2
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