Kalibrierungsvorrichtung, Laserstrahlemissionsschaltung und Elektronische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4254012

Aktenzeichen

EP23165063

Anmeldetag

29. März 2023

Veröffentlichung

11. Februar 2026

Erteilung

11. Februar 2026

Rechtsraum

EP

IPC

G01S17/931G01S7/497// G01S7/484

Abstract

This application relates to a calibration apparatus, a laser beam emission circuit (410) and an electronic device (14). The calibration apparatus is applied to the laser beam emission circuit, where the laser beam emission circuit (410) includes N lasers, and the calibration apparatus includes: a detection module (430), to detect optical power of an i^th laser; and a control module (420), to adjust an i^th control signal based on a detection result of a detection device, so that i^th optical power is equal to target optical power, where N≥i≥1, the i^th control signal is used to control optical power of an i^th laser during laser beam emission, and the i^th optical power is optical power of the i^th laser during laser beam emission, where the control module (420) further establishes a mapping relationship between the i^th laser and the i^th control signal when the i^th optical power is equal to the target optical power. The main control unit (420) sends charging control signals in a one-to-one correspondence to energy storage-adjustable charging circuits by time, to ensure that luminous power of each laser in the two-dimensional laser array is equal to the target power. Alternatively, the main control unit (420) stores a pulse parameter configuration table, and the pulse parameter configuration table stores pulse widths for determining various charging control signals. Optical power uniformity of multiple lasers can be improved in this application.

Anmelder

Firma

Suteng Innovation Technology Co., Ltd

Land

🇨🇳 China

Fachgebiete