WO2009132488A1

WO2009132488A1 - A laser projector projecting spots and lines simultaneity

Info

Publication number: WO2009132488A1
Application number: PCT/CN2008/001786
Authority: WO
Inventors: 张瓯; 王必文; 陆健; 徐臣
Original assignee: 常州华达科捷光电仪器有限公司
Priority date: 2008-04-30
Filing date: 2008-10-23
Publication date: 2009-11-05
Also published as: CN201242434Y

Abstract

A laser projector projecting spots and lines simultaneity, comprises a shell, and a hanging system (1). The hanging system (1) is provided with a first laser (21) and a first light splitter (22) to emit a linear laser beam, a second laser (23) and a second light splitter (24) to emit a plurality of laser spots.

Description

Laser line projector with point line projection

Technical field

The invention relates to a laser line finder, in particular to a laser line finder having a long distance of action and low power consumption and having a point line projection.

technical background

As a kind of engineering instrument, the laser line projector is used more and more occasions. Existing laser line projectors generally include a housing, a laser, and a beam splitting element. The laser and the beam splitting element are integrated in the body, and the laser in the housing emits a single laser beam, and the beam splitting action of the beam splitting element forms horizontal or vertical light on the target. Thus, when horizontal or vertical lines are required, work can be performed based on the above-mentioned light. Since the laser with a high output power will damage the retina after being accidentally injected into the human eye, there is a strict limit on the output power of the laser tool in the civilian field. Today's laser line projectors generally use a class CLASS II laser with a laser output power of no more than lMw. However, such a laser line consumes a large amount of energy when it propagates in the air, and therefore, a distant working distance cannot be achieved. Once the distance is long, the laser line on the target is too dark to be effectively identified, and is not suitable for a wide range of projection operations. In order to solve the above problems, in some special occasions, some laser spots are generated, and because of the concentrated energy of the light spots, it is capable of performing work at a relatively long distance. Therefore, a laser line projector capable of emitting a light spot appears.

However, only some spots are sometimes unable to work, and some light needs to be assisted at the same time to determine whether the light spot is suitable for the action, and the spot can also be initially positioned so that the operator can follow the spot. Position to find some less obvious light position, after the determined laser point is in the correct position, you can turn off the laser line, relying only on the laser point to work, which can also reduce energy consumption. At this time, it is necessary to have both light spot and light operation, and energy consumption during operation, so that the conventional laser line projector is no longer suitable.

Therefore, how to solve the problem that the same laser line projector simultaneously shoots the laser line and the laser point appears Extremely important

Summary of invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and to provide a laser line finder having a point line projection while having a long distance and low power consumption.

In order to solve the technical problem of the present invention, the present invention provides a laser line finder having a point line projection, which has a casing and a hanging system, and a first laser and a first beam splitting element are disposed on the hanging system, and can be launched. The linear laser beam also has a second laser and a second beam splitting element that can emit a plurality of laser spots.

The present invention is also characterized in that the linear laser beam emitted by the first beam splitting element may be a horizontal line or a vertical line, and the third laser and the third beam splitting element emit a laser light formed by the first beam splitting element. The beam is perpendicular to the laser beam, and the second beam splitting element emits a plurality of laser spots, wherein the laser spot includes a back reference point opposite to the direction of the linear laser beam emitted by the first beam splitting element.

According to the above configuration, the laser line projector having the dotted line projection of the present invention has a long distance of action and a low energy consumption of the light spot because of the light and the light spot, thereby saving energy.

DRAWINGS

The invention is further described below in conjunction with the drawings and embodiments.

1 is an exploded perspective view of a laser line projector having a dotted line projection according to the present invention. 2 is an assembled, isometric view of a laser line projector having a dotted line projection of the present invention.

Summary of the invention

Referring to FIG. 1 and FIG. 2, a laser line finder having a dotted line projection includes a housing (not shown), a hanging system 1 located in the housing, and the hanging system 1 includes First a connecting surface 11 , a second connecting surface 12 , and a third connecting surface 13 , wherein the first connecting surface 11 defines a first connecting hole 111 , and the second connecting surface 12 defines a second connecting hole 121 (not shown). A third connecting hole 131 is formed on the third connecting surface 13 , and the second connecting surface 12 is opposite to the third connecting surface 13 , so that the second connecting hole 121 and the third connecting hole 131 are in the same straight line. A first optical laser 21 and a first beam splitting element 22 are disposed on the first connecting surface 11 of the hanging system 1 and are received in the first connecting hole 111 after being mounted. The laser light emitted by the first laser 21 passes through the first light separating element. A vertical laser beam is formed after 22. A second optical laser 23 and a second beam splitting element 24 are disposed on the second connecting surface 12 of the hanging system 1 and are received in the second connecting hole 121 after being mounted. The laser light emitted by the second laser 23 passes through the second beam splitting element. There are five laser points after 24, and the above laser points include a back reference point. A third optical laser 25 and a third beam splitting element 26 are disposed on the third connecting surface 13 of the hanging system 1, and are mounted in the third connecting hole 131 after being mounted, and the laser light emitted by the third laser 25 passes through the third splitting element. After 26, a horizontal laser beam is formed. The aforementioned back reference point is opposite to the direction of the vertical laser beam emitted by the third laser 25, projecting on the target behind it.

In the present invention, the laser spot formed by the second laser may be formed on the laser line formed by the first laser and the third laser, or may be separately set, and the back reference point may also be used to adjust the accuracy of the projection. .

The invention completes the design purpose of the designer, can simultaneously form a laser linear beam, or can form a laser straight line, and after determining the position of the laser spot, the laser linear beam can be turned off to reduce energy consumption.

Claims

Rights request

1. A laser line finder having a point line projection, having a casing and a hanging system, wherein: the first laser and the first beam splitting element are disposed on the hanging system, and the linear laser beam can be emitted. There is also a second laser and a second beam splitting element that can emit a plurality of laser spots.

2. The laser line projector with dotted line projection according to claim 1, wherein the linear laser beam emitted by the first beam splitting element is a horizontal line.

3. The laser line projector with dotted line projection according to claim 1, wherein the linear laser beam emitted by the first beam splitting element is a vertical line.

4. A laser line projector having a dotted line projection according to claim 2 or 3, further comprising: a third laser and a third beam splitting element that emits a laser beam formed by the first beam splitting element Vertical laser beam.

A laser line projector having a dotted line projection according to claim 1, wherein the plurality of laser spots emitted by the second beam splitting element are five.

6. The laser line projector with dotted line projection according to claim 1 or 5, wherein the plurality of laser spots comprise a back reference opposite to the direction of the linear laser beam emitted by the first beam splitting element. point.