KR101911051B1 - Laser display device - Google Patents

Abstract

The present invention relates to a laser display device. A laser light source unit 20 which is a point light source installed on the housing 10 and emits a laser beam; and a light source unit 20 which is connected to the housing 20 by a predetermined path A control unit 15 installed on the path for irradiating the laser light in the inner space 11 of the housing 10 so that the laser light of the point light source can be emitted in a linear form; (50) in which the reflecting surface has an optional curved surface shape. When the line generating means 50 is bent in conjunction with the operation of the operating unit 15, the reflecting surface on which the laser light is reflected is changed from a flat shape to a curved shape so that the laser light is emitted in a linear shape. The laser display device according to the present invention allows the user to freely select and irradiate the laser light in the form of dots or lines by operating the operating part 15 to improve the usability of the laser display device and to broaden the range of application of the laser display device All.

Description

[0001] The present invention relates to a laser display device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser display device, and more particularly, to a laser display device capable of selectively displaying a point or a line using a laser at a desired point.

Generally, a laser display device is used for indicating a position or measuring a level by using a laser. For example, the laser pointer, which is one of the laser display devices, is constituted of a lens in front of the laser diode and a battery, which is a power source, and a switch, which supplies and cuts off the power of the battery, in the rear side. The laser pointer operates in such a manner that when the user operates the switch and the power of the battery is supplied to the laser diode, the laser diode is turned on and the laser is irradiated forward of the laser pointer.

Such a laser pointer serves as a pointer for indicating a chart or a presentation screen at a meeting, a construction site, and a briefing session.

Conventional laser pointers have pointed to a certain point in the spaced position, and it has been inconvenient to use a separate filter in order to display a desired line or pattern.

Korean Patent No. 10-1509719

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a laser display device in which a user can selectively display points or lines.

According to an aspect of the present invention, there is provided a laser light source comprising: a housing having an inner space formed therein; a laser light source unit provided in the housing to irradiate laser light; And a reflecting surface provided on a path through which the laser light is irradiated in the inner space of the housing and configured to selectively reflect the laser light of the point light source in a linear form, Wherein when the line generating means is bent in conjunction with the operation of the operating portion, the reflecting surface on which the laser light is reflected is changed from a flat shape to a curved shape so that the laser light is emitted in a linear shape, An elastic member is provided to return to an original position when an external force applied to the operation unit is removed, The line generating means is restored to a circular shape, the line generating means is fixed on one side, and the other side is movably installed, and the operating portion moves on the other side of the line generating means while moving along the longitudinal direction of the housing And a reflecting means for reflecting the laser light reflected by the line generating means and irradiating the laser light forwardly is provided at a position adjacent to the line generating means.

The line generating means has a flat plate structure of a flexible material, and the reflecting surface on which the laser light is reflected by the operation of the operating portion is selectively changed to a planar shape or a curved shape to emit the laser light in dot or line form.

The operating portion directly or indirectly presses the back surface of the line generating means to bend the line generating means.

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The laser display device according to the present invention as described above has the following effects.

The laser display device according to the present invention allows the user to freely select and irradiate the laser light in the form of dot or line by operating the operation part, thereby improving the usability of the laser display device and widening the application range of the laser display device have.

In particular, according to the present invention, there is no need to insert or replace a separate filter to irradiate the laser light in a linear form, the laser light can be changed into a linear shape simply by moving the operation portion, have.

In the present invention, the range (length) in which the laser light is radiated in a line shape varies depending on the degree of operation of the operation portion, so that the laser display device of the present invention can be used in various ways, There is also an effect.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a state where dots are displayed using an embodiment of a laser display device according to the present invention; FIG.
FIG. 2 (a) and FIG. 2 (b) are conceptual views schematically showing an operation mode of one embodiment of the laser display device according to the present invention.
3 (a) to 3 (c) are conceptual views showing, in plan view, an operation mode of an embodiment of the laser display device according to the present invention.
4 (a) to 4 (c) are conceptual views showing, in plan view, respective modes of operation of another embodiment of the laser display device according to the present invention.
5A and 5B are diagrams illustrating dot and line display using a laser display device according to the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the understanding why the present invention is not intended to be interpreted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

The laser display device according to the present invention is capable of freely selecting and irradiating laser light in dot or line form. Here, the term "point" means pointing to a specific point (refer to FIG. 5 (a)), and a line or line means pointing to a line having a certain length (see FIG. In Fig. 5, reference symbol P denotes a wall or blackboard, and reference symbol D denotes a shape indicated by the emitted laser light.

As shown in FIG. 1, the frame 10 of the laser display device according to the present invention is formed by the housing 10. The housing 10 may have various shapes in which the interior is hollow. In this embodiment, the housing 10 has a cylindrical shape. The housing 10 may be made of various materials such as an insulating material or a metal material.

The inner space (11) of the housing (10) is irradiated with laser light through its outlet. The outlet of the inner space 11 may be open or may be equipped with a separate lens or filter. The inner space 11 includes components such as the laser light source unit 20 and the line generating unit 50, which will be described below.

The operating slit 12 is provided with an operating portion 15. The operating portion 15 is a kind of operating lever and serves to vary the line generating means 50 to be described below. The operation unit 15 moves in the direction of the inside and outside of the housing to bend the line generating means 50. In this embodiment, when the operation unit 15 is pressed by the user, (50). Whereby the line generating means 50 is bent. The operation unit 15 may also serve to turn on / off the laser light source unit 20, which will be described below, in addition to varying the line generating means 50. For example, the operation unit 15 itself can act as a kind of switch to supply power to the laser light source unit 20 or to stop the power supply. Reference numeral 16 denotes a pushing portion which pushes the line generating means 50 substantially when the operating portion 15 is operated. The pressing portion 16 has a structure protruding toward the line generating means 50.

A laser light source unit 20 is installed in the inner space 11 of the housing 10. The laser light source unit 20 irradiates laser light and is connected to an electric power source (not shown). The laser light irradiated by the laser light source unit 20 has monochromaticity, transparency, directivity, and whiteness. The laser light emitted by the laser light source unit 20 is indicated by a line generating means 50, which will be described later, do. Reference numeral 25 denotes a light source to which laser light is irradiated.

A line generating means (50) is installed in a path through which the laser light is irradiated from the laser light source unit (20). The line generating means 50 is installed in a path through which the laser light is irradiated in the inner space 11 of the housing 10 to emit the laser light emitted from the point light source to a line. The line generating means 50 is varied in conjunction with the operation of the operating portion 15 and the laser beam is selectively emitted to a point or a line as the line generating means 50 is varied.

1 and 2, the shape of the line generating means 50 is a flat plate structure. More precisely, the line generating means 50 is a flat plate structure having a plane shape reflecting the laser light, and is made of a flexible material. Accordingly, the line generating means 50 is maintained in the form of a flat plate, and can be bent when an external force is applied. Here, the external force applied to the line generating means (50) is transmitted by the operating portion (15). For example, the line generating means 50 may be made of various materials having a restoring force such as a synthetic resin material or a rubber material provided on one side of the reflective surface.

The line generating means (50) reflects the laser light emitted from the point light source, and reflects the light in the form of a point when it is in the form of a flat plate and in the form of a line in a bent state. Accordingly, the laser light can be selectively irradiated to the point or line while passing through the line generating means 50.

2 shows a state in which the line generating means 50 is operated by the operating portion 15. In FIG. 2 (a), before the operation unit 15 presses the line generation means 50, the line generation means 50 has a flat plate structure. However, as shown in FIG. 2 (b) When the means 50 is pressed, the reflecting surface facing the reflecting means 30 becomes curved.

As shown in FIG. 3, when the external force is transmitted by the operation unit 15, the degree of bending of the line generating means 50 may gradually change. 3 (c), the line generating means 50 is seen to be more bent as the operating portion 15 further descends to deform the line generating means 50 It is possible. When the line generating means 50 further curves, the length of line-shaped light reflected by the line generating means 50 and outputted is relatively longer.

Reflecting means 30 is provided at a position adjacent to the line generating means 50 in the inner space 11 of the housing 10. 1, the reflecting means 30 reflects the laser light reflected by the line generating means 50 and emits the laser light forward, and the laser light is emitted in the longitudinal direction of the housing 10 So that it can be outputted. Of course, the reflecting means 30 may be omitted and the laser light reflected by the line generating means 50 may be emitted as it is.

Fig. 3 schematically shows a state in which laser light is reflected by the line generating means 50 and the reflecting means 30. Fig. 3 (a), when the user does not press the operation unit 15, the light irradiated from the laser light source unit 20 is reflected on the planar reflection surface of the line generating means 50, And then emitted upward.

If the user presses the operation unit 15, the line generating unit 50 is pressed and bent so that the portion of the laser beam reflected by the laser beam is curved as shown in FIG. 3 (b) or FIG. 3 (c). Accordingly, the laser light reflected on the curved surface is reflected again by the reflecting means 30 and then emitted upward. However, the angle between the line generating means 50 and the reflecting means 30 is preferably maintained at the same time.

Although not shown, when the elastic member is connected to the operating unit 15 and the external force applied to the operating unit 15 is removed, the operating unit 15 is returned to its original position. That is, the operating unit 15 is basically in a state where the line generating means 50 is not pressed, and when the user presses the operating unit 15 while overcoming the elastic force of the elastic member, 16 press the line generating means 50 to warp. Of course, when the external force is removed, the operating portion 15 is returned to its original position, and the line generating means 50 is also restored to a circular shape.

On the other hand, Fig. 4 shows another embodiment of the present invention. The same reference numerals are given to the same parts as those of the previous embodiment, and the description thereof will be omitted. 4A, in this embodiment, the operating section 15 does not press the line generating means 50 toward the reflecting means 30, but moves the line generating means 50 in the longitudinal direction of the housing 10 50 are pressed to be bent.

More precisely, the line generating means 50 is in a state in which one side is fixed and the other side is movably installed. One side of the line generating means 50 is fixed to the separate stopper 80 and can not move. In this state, the operation unit 15 moves along the longitudinal direction of the housing 10 and presses the other side of the line generating means 50 to bend the line generating means 50.

Fig. 4 (b) and Fig. 4 (c) show a bent state of the line generating means 50, and Fig. 4 (c) shows a relatively more bent state. The degree to which the line generating means 50 is bent can be changed according to the degree to which the user pushes up the operating portion 15. If the degree of bending of the line generating means 50 is changed, the length of the emitted laser light also changes. Of course, the longer the line generating means 50 is warped, the longer the laser light can be made. Reference numeral 16 denotes a portion which substantially presses the other side of the line generating means 50 with a pressing portion.

Of course, in this embodiment also, the elastic member can be provided on the operation portion 15. [

Hereinafter, an operation of irradiating laser light using the laser display device according to the present invention will be described.

First, when the user turns on the laser light source unit 20 using the operation unit 15, laser light is irradiated from the laser light source unit 20. The laser light source unit 20 generates laser light from the laser light source unit 20 using electrical energy transferred from a power source and irradiates the laser light forward.

Then, the laser light emitted from the laser light source unit 20 is incident on the line generating means 50. The line generating means 50 refracts the incident laser light and guides the laser light to the reflecting means 30. The laser light reflected back to the reflecting means 30 is reflected in the longitudinal direction of the housing 10, In a direction parallel to the direction irradiated by the user, thereby indicating a desired position by the user. The line generating means 50 and the reflecting means 30 are provided in parallel to each other to refract the laser light in the orthogonal direction. As a result, the laser light is emitted in a direction parallel to the direction irradiated from the laser light source portion 20.

2 (a) and FIG. 3 (a), if the line generating means 50 is circular, the laser light is reflected on the planar reflecting surface of the line generating means 50, When the line generating means 50 is bent as shown in Figs. 2 (b) and 3 (b), the reflective surface becomes a curved surface, and the incident point shape is deformed into a line shape and reflected. This is because when the user operates the operating unit 15 and presses it, the line generating means 50 connected to the operating unit 15 warps and deforms the laser light into a line shape.

In this manner, the user can select laser light of a dot or line shape by a simple operation of moving the operation unit 15 and can search for it.

3 (c), when the line generating means 50 further curves, the length of laser light emitted becomes longer.

Although not shown, an elastic member is connected to the operating portion 15 so that when the user depresses the pressing force of the operating portion 15, the operating portion 15 returns to the home position so that the line generating means 50 is also restored to a circular shape . In this case, the user normally irradiates the laser beam in the form of a point, and if necessary, presses the operating part 15 to irradiate the laser beam in the form of a line, and can remove the pressing force to change the laser beam simply by point.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: housing 11: inner space
15: Operation section 20: Laser light source section
30: Reflecting means 50: Line generating means

Claims (6)

A housing having an inner space formed therein,
A laser light source unit which is installed in the housing and is a point light source for irradiating laser light,
A control unit installed on the housing so as to be movable along a predetermined path;
And a line generation means provided on a path through which the laser light is irradiated in the inner space of the housing and having a reflective surface selectively curved so as to emit the laser light of the point light source in a line shape,
When the line generating means is bent in conjunction with the operation of the operating portion, the reflecting surface on which the laser light is reflected is changed from a flat shape to a curved shape so that the laser light is emitted in a linear shape,
The elastic member is provided on the operation portion to return to the original position when the external force is applied to the operation member, and when the operation member returns to the home position,
Wherein the line generating means is fixed on one side and movable on the other side, the operating portion bending the line generating means by pressing the other side of the line generating means while moving along the longitudinal direction of the housing,
And a reflecting means for reflecting the laser light reflected by the line generating means again and irradiating the laser light forwardly is provided at a position adjacent to the line generating means.
The apparatus according to claim 1, wherein the line generating means has a flat plate structure of a flexible material, and the reflecting surface on which the laser light is reflected by the operation of the operating portion is selectively changed to a planar shape or a curved shape, In the form of a line.
The laser display apparatus according to claim 2, wherein the operating section directly or indirectly presses the rear surface of the line generating means to bend the line generating means.
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