Patent ID: 11881680
Assignee: nan
Field: Optics (Instruments)
Classification: CPC H  G | IPC H

Claim 0:
1. A laser module, wherein a heat sink and a lens module are configured to be installed in an inner cavity of a height adjustment barrel through two ends of the height adjustment barrel, respectively, such that a laser diode received in an inner cavity of the heat sink and a lens accommodated within the lens module are disposed on a same optical axis, and the height adjustment barrel is configured to adjust a focal length between the laser diode and the lens, wherein the lens module is consisted of a lamp body, and of a transparent protective plate covering an opening end of a lens holder, a light diffusion plate, the lens holder, a lens embedded at a bottom portion of the lens holder, and a hold-down ring, which are disposed in an inner cavity of the lamp body in sequence.