發送短信 : Challenges and advancements for AR optical see-through near-eye displays: a review

__    __    ______   _____       ___      ____    
\ \\ / //  /_   _// |  __ \\    / _ \\   |  _ \\  
 \ \/ //    -| ||-  | |  \ ||  | / \ ||  | |_| || 
  \  //     _| ||_  | |__/ ||  | \_/ ||  | .  //  
   \//     /_____// |_____//    \___//   |_|\_\\  
    `      `-----`   -----`     `---`    `-` --`