Prometheus色度计 20mm准直透镜图片

p1Src=//y3.yzimgs.com/uploads/352410/2024617-15244576.jpeg?watermark/2/text/5rex5Zyz5biC5p-v5pmu55ub55S15a2Q56eR5oqA5pyJ6ZmQ5YWs5Y-4IA==/font/5a6L5L2T/fontsize/700/fill/I0E3QTlBOA==/gravity/South&p2Src=//y1.yzimgs.com/uploads/352410/2024617-1534922.jpg?watermark/2/text/5rex5Zyz5biC5p-v5pmu55ub55S15a2Q56eR5oqA5pyJ6ZmQ5YWs5Y-4IA==/font/5a6L5L2T/fontsize/750/fill/I0E3QTlBOA==/gravity/South"