Cai Wei-Yu, Jiang Zi-Qi, Liu Xiao-Mei, Liu Hua, Ma Xiao-Juan, Tang Rong-Nian, Li Xiang
College of Mechanical and Electrical Engineering, Hainan University, Haikou, 570228, China.
Fuzhou Vocational and Technical College, Fuzhou, 344000, China.
Heliyon. 2023 Jul 29;9(8):e18790. doi: 10.1016/j.heliyon.2023.e18790. eCollection 2023 Aug.
The semiconductor white laser light source is used as a light source for underwater illumination. The required standard color temperature of white light is obtained at the underwater target surface. We studied the power compensation of a synthetic white laser source and its application to underwater illumination. First, the power ratios of the red (638 nm), green (520 nm), and blue (450 nm) lasers at a color temperature of 6500 K were obtained by using chromaticity theory. Next, the three-color and synthetic white laser parameters were obtained with transmission distance, according to the exponential attenuation characteristics of different light in clear water and seawater medium. The three-color laser power at the output was compensated, and the underwater target illumination surface reached the standard 6500 K color temperature of the white laser, improving the illumination. Finally, an experimental system for underwater white laser illumination based on power compensation was established. The errors between experimental and theoretical results of color temperature and illuminance are no more than 0.43% and 22.15%. This power-compensated synthetic white laser light source has both the advantages of long-range underwater detection and the spectral advantages of LED white light sources. The white laser light source meets specific requirements by compensating for power and optimizing white light characteristics for underwater lighting applications.
半导体白色激光光源用作水下照明光源。在水下目标表面获得所需的白光标准色温。我们研究了合成白色激光源的功率补偿及其在水下照明中的应用。首先，利用色度理论获得了色温为6500K时红色（638nm）、绿色（520nm）和蓝色（450nm）激光的功率比。其次，根据不同光在清水和海水介质中的指数衰减特性，获得了三色和合成白色激光参数随传输距离的变化情况。对输出的三色激光功率进行补偿，使水下目标照明表面达到白色激光的标准6500K色温，提高了照明效果。最后，建立了基于功率补偿的水下白色激光照明实验系统。色温与照度的实验结果与理论结果之间的误差不超过0.43%和22.15%。这种功率补偿的合成白色激光光源兼具水下远距离探测的优点和LED白色光源的光谱优势。该白色激光光源通过功率补偿和优化白光特性满足水下照明应用的特定要求。
