Global Galilean Beam Expander Market By Type (Optical Communication Devices , Measurement and Testing Devices , Laser Delivery and Processing Systems , Lidar and Remote Sensing Devices , and Others), By Application (Military & Defense , Scientific Research & Instrumentation , Medical , Industrial , and Commercial), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029