VL53L1 datasheet(24/39 Pages) STMICROELECTRONICS

部件名	VL53L1

功能描述	New generation Time-of-Flight ranging sensor with advanced multi-zone and multi-object detection

PDF	39 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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24 / 39 page

Ranging performances

VL53L1

24/39

DocID029631 Rev 12

5.5

Ranging and Scanning modes: partial FoV performances

5.5.1

Optical center definition

Sensing array optical center specification takes into account the part-to-part variation in

production.

Optical center is defined by (Xo, Yo) coordinates.

Optical center is measured for each part during a factory test at STMicroelectronics. The

coordinates are stored in the VL53L1 non-volatile memory and are readable by customer

through software driver in the application. This helps optimizing its design, alignment with

camera and ranging performances in the application.

The green array in Figure 16: Optical center specification gives the possible location of the

optical center.

The user can define its own priority:



Priority FoV: full matrix 16x16 active, max. ranging distance on corners maybe smaller

than in the center.



Priority distance: cropped matrix around the optical center. Refer to Table 16:

Ranging and Scanning modes: performance with partial FoV to get the target

performances in this case.

Figure 16. Optical center specification

Table 15. Optical center specification

Parameter

Min.

Typ.

Max.

Unit

Xo offset

-2

SPAD

Yo offset

-2

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