Patent ID: 11859780
Assignee: nan
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A light source switching apparatus for a flashlight, comprising:
a floodlight source and a spotlight source;
the floodlight source is disposed on a lamp strip plate and the spotlight source is disposed on a main lamp plate;
the floodlight source and the spotlight source are disposed at a set distance in the axial direction;
a lens mounted in front of the floodlight source;
the back surface of the lens comprises three conical surfaces with non-collinear buses, a first reflecting surface, a transition surface and a second reflecting surface in sequence from back to front;
the boundary line of the transition surface and the second reflecting surface intersects with a ray from the central point of the end part of the small end of the lens to the boundary line of the transition surface and the first reflecting surface or is positioned at the rear side of the extension line;
the small end of the lens is sunken inwards to form a sunken space, and a first incident surface for receiving forward light and a second incident surface for receiving lateral light are disposed in the sunken space;
the large end of the lens is provided with a first emergent surface which is sunken inwards and is conical and a second emergent surface which is flat and annular, and light of the light source is emitted out through the first emergent surface and the second emergent surface.