公开(公告)号：EP4001996A2

公开(公告)日：2022-05-25

申请号：EP21205395.3

申请日：2021-10-28

Applicant: STMicroelectronics Ltd

Inventor： DOMNITS, Alex ,  ERLICH, Shlomy

IPC: G02B27/01 ,  G02B27/09 ,  G02B27/10 ,  G02B26/08 ,  G02B26/10 ,  H04N9/31 ,  G02B27/14

Abstract: A compact optical package (10) includes an RGB laser unit (12) containing red, green, and blue laser diodes ((12a-12c)) within a single package, with three lenses (14a-14c) adjacent the RGB laser unit to collimate red, green, and blue laser light emitted by the red, green, and blue laser diodes. A beam combiner (16) combines the red, green, and blue laser light into a single RGB laser beam (33) and also outputs a lower power feedback beam. The optical package also includes a movable mirror apparatus (20, 24), and a fixed folding mirror (22) upon which the single RGB laser beam output by the beam splitter impinges and reflects the single RGB laser beam toward the movable mirror apparatus (20, 24). The movable mirror apparatus (20, 24) directs the single RGB laser beam (33) through an exit window (24) and to scan the single RGB laser beam in a scan pattern to form at least one desired image on a target.