CN112394604A

CN112394604A - Hand-held laser projection device

Info

Publication number: CN112394604A
Application number: CN201910744407.8A
Authority: CN
Inventors: 陈德利; 许信修; 徐宗葆
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2021-02-23

Abstract

A hand-held laser projection device comprises a control switch, two to eight laser light sources, a plurality of grating sheets and a controller. The control switch is suitable for generating a switching signal. The laser light source is suitable for emitting light. The grating sheets are arranged on the emitting path of the light, and the number of the grating sheets is the same as that of the laser light sources. The controller is connected to the control switch and the laser light source, receives the switching signal and turns on or off the laser light source. The grating sheet also comprises a pattern, and the pattern of the grating sheets is a continuous pattern. The controller controls the laser light sources to sequentially emit the light according to the arrangement sequence of the laser light sources.

Description

Hand-held laser projection device

Technical Field

The invention relates to the field of laser projection, in particular to a handheld laser projection device.

Background

Desktop projection technology is a projection technology application appearing in recent years, and the principle is that a projector is erected above a desktop, and related images are played through a computer connected to the projector to generate projection animation and visual effects. In some cases, the effect of projection touch can be realized by matching with a dynamic sensing technology. Desktop projection technology is currently used in specialty restaurants or special shows.

However, the existing desktop projection technology is very expensive, for example, the projector is mounted on the ceiling, and the cable of the projector is disposed. The projection environment must be matched with the projection content, for example, the desktop projection must be matched with the object on the desktop to present the visual effect of the projection animation. Therefore, the existing desktop projection is mostly a one-time high-cost performance, and is not suitable for the general public.

Therefore, it is worth the thinking of those skilled in the art to design a desktop projector device that is low in cost, simple and easy to use, and suitable for the public.

Disclosure of Invention

The invention provides a handheld laser projection device which has the characteristics of small volume, low cost and easiness in operation.

The invention provides a hand-held laser projection device which comprises a control switch, two to eight laser light sources, a plurality of grating sheets and a controller. The control switch is suitable for generating a switching signal. The laser light source is suitable for emitting light. The grating sheets are arranged on the emitting path of the light, and the number of the grating sheets is the same as that of the laser light sources. The controller is connected to the control switch and the laser light source, receives the switching signal and turns on or off the laser light source. The grating sheet also comprises a pattern, and the pattern of the grating sheets is a continuous pattern. The controller controls the laser light sources to sequentially emit the light according to the arrangement sequence of the laser light sources.

The handheld laser projection device further includes a port adapted to be connected to an external power source.

The above-mentioned hand-held laser projection device further comprises an energy storage component connected to the port.

In the above-mentioned handheld laser projection apparatus, after receiving the switching signal, the controller turns on one of the laser light sources and turns off the other laser light sources.

In the above-mentioned handheld laser projection apparatus, after the controller receives the switching signal again, the controller turns on the next laser light source and turns off the other laser light sources.

In the above-mentioned handheld laser projection apparatus, the controller turns on only one of the laser light sources at a time.

Drawings

Fig. 1 is an external view of a handheld laser projection apparatus.

Fig. 2 is a diagram illustrating the relationship between the internal components of the handheld laser projection device.

Fig. 3A to 3C are schematic diagrams illustrating the laser light cycle on.

10a to 10 c: pattern(s)

100: hand-held laser projection device

101: outer casing

110: control switch

120. 120a to 120 c: laser light source

130: grating sheet

140: controller

150: energy storage assembly

160: a port.

Detailed Description

The invention provides a hand-held laser projection device which is small in size, easy to carry and has a function of projecting animation patterns.

Referring to fig. 1 and fig. 2, fig. 1 is an external view of a handheld laser projection apparatus. Fig. 2 is a diagram illustrating the relationship between the internal components of the handheld laser projection device. The handheld laser projection apparatus 100 of the present invention includes a control switch 110, two to eight laser sources 120, a plurality of grating sheets 130, a controller 140, an energy storage device 150 and a port 160. The laser source 120, the grating sheet 130, the controller 140 and the energy storage component 150 are enclosed in a housing 101. The control switch 110 is disposed on the surface of the housing 101, and the port 160 is disposed to protrude from the housing 101.

The control switch 110 is adapted to generate a switching signal. In the present embodiment, the control switch 110 is a button, which can generate a switching signal by repeatedly pressing and triggering. In other embodiments, other types of switches can be used, such as a knob switch or the like.

The laser source 120 is a laser optical machine adapted to emit a light beam. In the present embodiment, two to eight laser sources 120 are provided, and all of the laser sources can be a single color or a mixture of a plurality of different colors. In the preferred embodiment, each of the laser sources 120 has a set angle therebetween, so that all the light emitted from the laser sources 120 meet at a focal point, and the horizontal distance from the focal point to the laser source 120 is 1.5 m.

The grating sheet 130 is disposed on the emitting path of the light, that is, the light emitted from the laser source 120 passes through the grating sheet 130. Also in the present embodiment, the number of the grating sheets 130 is the same as that of the laser light sources 120. Each laser light source 120 is provided with a corresponding grating sheet 130. Each grating sheet 130 has a pattern, and the patterns of the plurality of grating sheets 130 are continuous patterns. And the order of the lenticular sheet 130 is set according to the dynamics of the pattern. When the light passes through the grating sheet 130, the pattern on the grating sheet 130 can be projected onto other objects. The continuous pattern of the lenticular lens 130 can form an animation effect.

The controller 140 is connected to the control switch 110 and the laser source 120. The controller 140 receives the switching signal of the control switch 110 to control the laser source 120 to be turned on or off. In this embodiment, the control modes include all-off, single constant illumination, and cyclic illumination. The mode can be switched by repeatedly activating the control switch 110.

All the laser light sources 120 are turned off, and the laser projector is suitable for the situation that the handheld laser projector 100 is not used. The single constant illumination is to turn on only one of the laser sources 120 and turn off the other laser sources 120, and the on laser sources 120 can be switched by repeatedly triggering the control switch.

The cyclic illumination is to turn on the laser sources 120 in sequence according to the setting sequence of the laser sources 120 to emit light sources, that is, only one laser source 120 is turned on at a time, and the next laser source 120 is turned off and turned on after a period of time. In the preferred embodiment. Referring to fig. 3A to 3C, fig. 3A to 3C are schematic diagrams illustrating the laser beam 120 being turned on cyclically. Initially, a first laser source 120a is turned on to project a pattern 10 a. The laser source 120a is turned off after a certain period of time, and the second laser source 120b is turned on to project a pattern 10 b. Similarly, the laser source 120b is turned off after a certain period of time, and the third laser source 120c is turned on to project a pattern 10 c. In the embodiment of fig. 3A to 3C, there are three laser light sources 120, so that after the third laser light source 120C is turned off, the first laser light source 120a is turned on, so as to achieve the effect of cyclic turning on.

The patterns 10a to 10c projected by the laser light sources 120a to 120c are formed by the grating sheet 130 corresponding to the laser light source 120. I.e., the patterns 10a to 10c are patterns on the grating sheet 130. The continuous patterns of the grating sheets 130 are circularly turned on by the laser sources 120 to project the patterns of the grating sheets 130 in sequence. It is possible to project animated patterns on other objects.

The handheld laser projection apparatus 100 further includes a port 160 and an energy storage component 150. The port 160 is connected to the controller 140, and the port 160 is also adapted to be connected to an external power source. In other words, the port 160 is connected to an external power source and supplies power to the handheld laser projection apparatus 100, so that the controller 140 can control the plurality of laser light sources 120 and the laser light sources 120 can emit light. In this embodiment, the port 160 is a universal port (USB), and other ports capable of supplying power can be used in other embodiments.

The energy storage component 150 is, for example, a battery. The energy storage assembly 150 is connected to the port 160 and can be powered and charged from an external power source through the port 160. When the port 160 is not connected to an external power source, the energy storage device 150 can provide power to the controller 140 and the laser source 120.

The handheld laser projection apparatus 100 of the present invention controls the plurality of laser sources 120 through the controller 140, and turns on the plurality of laser sources 120 in turn according to the sequence of pictures through the grating sheet 130 corresponding to the laser sources 120 and the continuous patterns on the grating sheet 130, so as to continuously project the patterns on the grating sheet 130 onto other objects to form an animated image. Therefore, the handheld laser projection apparatus 100 has a relatively small volume, and has a universal port 160 for connecting an external power source, which is simple to operate and low in cost, thereby achieving the effect of animated projection.

The present invention is described above, but not intended to limit the scope of the claims claimed herein. The scope of protection is to be determined by the claims appended hereto and their equivalents. It will be appreciated by those skilled in the art that changes may be made and equivalents may be substituted for elements thereof without departing from the true spirit and scope of the invention, which is set forth in the following claims.

Claims

1. A handheld laser projection device, comprising:

a control switch, suitable for producing a switching signal;

two to eight laser light sources adapted to emit a light;

the grating sheets are arranged on the emitting path of the light, and the number of the grating sheets is the same as that of the laser light sources; and

the controller is connected to the control switch and the laser light source, receives the switching signal and turns on or off the laser light source;

the grating sheet also comprises a pattern, and the pattern of the grating sheets is a continuous pattern;

the controller controls the laser light sources to sequentially emit the light according to the arrangement sequence of the laser light sources.

2. The handheld laser projection device of claim 1, further comprising a port adapted to connect to an external power source.

3. The handheld laser projection device of claim 2, further comprising an energy storage element coupled to the port.

4. The handheld laser projection device as claimed in claim 1, wherein the controller turns on one of the laser light sources and turns off the other laser light sources after receiving the switching signal.

5. The handheld laser projection device as claimed in claim 4, wherein the controller turns on the next laser source and turns off the other laser sources after receiving the switching signal again.

6. The handheld laser projection device of claim 1, wherein the controller turns on only one of the laser light sources at a time.