ADJUSTABLE ROUND LIGHT SPOT TORCH

WIPO Patent Application WO/2017/101304

A1

Disclosed is an adjustable round light spot torch, comprising a shell (1), a light source (2), and a control optical path (3), both the light source (2) and the control optical path (3) are arranged in the shell (1), the centres of the light source (2) and the control optical path (3) are on the same straight line, the control optical path (3) comprises a first light condensing group (31) and a second light condensing group (32) that are arranged in sequence, and the first light condensing group (31) is located between the light source (2) and the second light condensing group (32). Light emitted by the light source (2) can be condensed by the first light condensing group (31) firstly, and is then diffused to the second light condensing group (32) after passing through a light filter, a condensed light spot is obtained and emitted after the second light condensing group (32) condenses the light for the second time, and consequently, a concentrated and long-range light ray is obtained, and a projected object can appear layered and transparent like a crystal. During use, a relatively long range can still be realized without changing focal length, and a transmitted light spot is uniform and round. The adjustable round light spot torch is simple in structure and convenient to use.

JP4695603	Two-dimensional spatial light modulator
WO/2010/104787	PORTABLE SOLAR LIGHT TOWER

HUANG RONGSHEN (CN)

PCT/CN2016/088295

June 22, 2017

July 04, 2016

Click for automatic bibliography generation  

HUANG RONGSHEN (CN)

F21L4/00; F21V13/02; F21V17/02

CN205244904U	2016-05-18
CN201187690Y	2009-01-28
CN104295917A	2015-01-21
CN102252278A	2011-11-23
CN101514798A	2009-08-26
CN1662773A	2005-08-31
US20100027251A1	2010-02-04

SBZL IP LAW OFFICE (CN)

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