An array focused laser energy transmission photoelectric receiving device

Abstract

The invention belongs to the field of laser wireless energy transmission, and discloses an array-focused laser energy transmission photoelectric receiving device, which includes a photon power supply unit and a lower substrate. The photon power supply unit is arranged on the lower substrate and arranged tightly without gaps. The photon power supply unit array form; the photon power supply unit includes a laser battery chip, a diode, an upper substrate and a focusing lens, the laser battery chip is mounted on the upper substrate through conductive glue, and the laser battery chip and the diode are connected in antiparallel connection, the laser battery chip, diode, and upper substrate are packaged inside the focusing lens, and the upper substrate is welded on the pad of the lower substrate. The invention enables the laser light on the gap between the battery chips to be focused on the photosensitive surface of the battery, thereby improving the utilization efficiency of the surface of the photocell and improving the overall conversion efficiency.

Description

technical field [0001] The invention relates to the field of laser wireless energy transmission, in particular to an array-focused laser energy transmission photoelectric receiving device. Background technique [0002] Laser wireless energy transmission technology uses high-energy light beams as energy carriers, and uses efficient electro-optic and photoelectric conversion to realize non-contact energy supply to remote specific equipment. Compared with electromagnetic coupling, magnetic resonance energy transmission, etc., laser wireless energy transmission can achieve a longer transmission distance; compared with microwave wireless energy transmission, laser wireless energy transmission devices are smaller in size and weight, and have higher conversion efficiency. For static and dynamic energy transfer to remote small targets. At present, Europe, the United States, Japan, etc. have conducted a lot of research on laser wireless energy transmission. [0003] Since the optic...

AI Technical Summary

Problems solved by technology

The traditional photoelectric receiving target surface packaging process is to directly weld the single laser battery on the photoelectric receiving target surface substrate through surface mount technology (SMT) and other processes. In the area array packaging process, the gap between the battery and the battery is relatively Large (generally 18~25% of the photoelectric receiving target surface), resulting in a small effective area of ​​photoelectric cells on the photoelectric receiving target surface, which seriously affects the overall photoelectric conversion efficiency of the photoelectric receiving target surface

Images