WO2018120689A1 - Projection device - Google Patents

Abstract

A projection device, the projection device comprising a projection module used for emitting a projection light and performing image projection display. The projection module at least comprises a projection lens used for emitting the projection light; the projection device also projects a warning word by means of the project lens or displays the warning word by means of an electronic screen disposed on the projection device, wherein the warning word is used for reminding a user not to be in an area where the projection light is located.

Description

 Projection equipment Technical field

The present invention relates to the field of projection technology, and in particular, to a projection device with a safety alert function.

Background technique

The existing projection module is a display device for generating a large-sized picture. The imaging principle of the projection device is to convert the illumination beam generated by the light source into an image beam through a light valve, and then convert the image beam into a projection beam through a projection lens and project it onto a screen or a wall surface. In order to achieve a better projection effect, the brightness of the light emitted by the projection device from the projection lens is relatively high, especially a projection device using a laser as a light source. If the user is facing the projection lens in the area of the light emitted by the projection lens, then It is likely to cause damage to the user's eyes. It can be seen that promptly warning the user not to be in the projected light area of the projection device has become a technical problem to be solved.

technical problem

In the prior art, the foregoing object is achieved by marking the text or the warning of the picture on the projection device, but the warning sign is relatively loose or worn, resulting in a poor warning effect.

Technical solution

In order to solve the aforementioned technical problems, a projection apparatus having a better warning effect is provided.

A projection apparatus includes a projection module for emitting projection light and performing image projection display, the projection module including at least one projection lens, the projection lens for emitting the projection light. The projection device also displays an alert word through an electronic screen of the projection device projected or disposed on the projection device, wherein the warning term is used to remind the user not to be in the region where the projection light is located.

Beneficial effect

Compared with the prior art, after the power-on starts working, the projection device displays the warning language by using a projection display mode or an electronic screen, and the display effect is more obvious and prominent, thereby improving the warning effect and efficiency of the warning term. At the same time, the safety of the projection device is also improved, and the health of the user is ensured.

DRAWINGS

1 is a schematic view showing the function of a projection apparatus in a first embodiment of the present invention.

2 is a schematic diagram of functional modules of the projection device shown in FIG. 1.

3 is a schematic perspective view of the projection apparatus shown in FIG. 2.

4 is a schematic diagram of functional modules of the projection apparatus shown in FIG. 1 according to a second embodiment of the present invention.

FIG. 5 is a schematic diagram of functional modules of the projection apparatus shown in FIG. 1 according to a third embodiment of the present invention.

Projection equipment	10, 20, 30
Boot module	11, 21, 31
control center	12, 22, 32
Detection module	121, 221, 321
Control module	123, 223, 323
Time module	325
Warning module	13, 23, 33
Display	131
Drive control circuit	133
Projection module	14, 24, 34
Light source module	141, 142, 143
Optical module	241, 242, 243
Projection lens	341, 342, 343
Data transmission module	15, 25, 35

The invention will be further illustrated by the following detailed description in conjunction with the accompanying drawings.

BEST MODE FOR CARRYING OUT THE INVENTION

The technical solutions in the embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings in the embodiments of the present invention.

Please refer to FIG. 1. FIG. 1 is a schematic diagram of functions of a projection apparatus according to the present invention.

The projection device 10 includes a booting start module 11, a control center 12, a warning module 13, a projection module 14, and a data transmission module 15. The booting module 11, the alerting module 13, the projection module 14, and the data transmission module 15 are electrically connected to the control center 12, respectively.

The startup module 11 is configured to receive an operation of an external user to activate or deactivate an operation control command of the projection device, and output a corresponding activation signal or a shutdown signal to the control center 12 according to the input operation. Specifically, when the booting startup module 11 receives the startup operation, that is, when the projection device 10 is working normally and needs to perform image projection, the booting startup module 11 outputs the startup signal; when the booting startup module 11 receives the shutdown operation, That is, when the projection device 10 stops working and no image projection is required, the boot-up module 11 outputs the shutdown signal. In this embodiment, the booting start module 11 is a power switch. At the same time, the start signal can be a high potential signal (3.5V-5V), and the shutdown signal is a low potential signal (0V). Of course, the start signal can also be a low potential. Signal, the off signal is a high potential signal, not limited to this.

The control center 12 is configured to receive the start signal and the shutdown signal from the booting start module 11, and output a control signal (such as a warning signal) corresponding to the start signal and the shutdown signal to the warning module 13 and the projection module. 14. The control warning module 13 reminds the user that the projection device 10 is ready for projection work, and does not directly view the projection light of the projection device 10, and also controls the projection module 14 to display image data to be projected in the data transmission module 15. The information is displayed in projection. The control center 12 further controls the projection module to turn off the projection light according to the shutdown signal, and outputs a signal for stopping the use of the control (such as stopping the warning signal) to the warning module.

The warning module 13 is configured to control the display of the warning term according to the warning signal, or control the warning term to stop displaying according to the stop warning signal, thereby alerting and alerting the user that the projection module 14 is cutting when performing the projection work. Do not look directly into the projection area of the projection device to prevent damage to the user's health, such as impaired vision. The warning term may include a warning picture, a warning text, and the like. Or, when the warning text and the warning picture are displayed, a voice prompt is also performed to enhance the effect of the warning. In this embodiment, the warning module 13 is configured to display an image of “dangerous, not looking directly” in a conspicuous position when the projection device 10 is powered on.

The data transmission module 15 is configured to receive image data information to be projected and displayed from the outside, and output the image data information to be projected and displayed to the projection module 14. The projection module 14 is configured to perform projection display on the image data information to be projected. In this embodiment, the data transmission module 15 can be an HDMI interface (High Definition Multimedia Interface, High Definition Multimedia Interface), VGA (Video Graphics Array, video graphics array interface), DVI interface (Digital Visual Interface) or USB interface (Universal Serial Bus, Universal Serial Bus Interface, etc., is not limited to this.

In addition, the control center 12 also detects the working state of the data transmission module 15, that is, whether the data transmission module 15 receives the image data information to be projected and displayed, so as to control the projection module 14 for the projection to be projected. The image data information is projected and displayed.

The projection module 14 includes a light source module 141 , a light machine module 142 , and a projection lens 143 . The light source module 141 is configured to provide an illumination beam. The optomechanical module 142 is configured to convert the illumination beam into an image beam. The projection lens 143 is used to convert the image beam into a projection beam and project the projection beam to form a picture.

Specifically, please refer to FIG. 2 , which is a schematic diagram of a detailed functional module of the projection device 10 shown in FIG. 1 according to the first embodiment of the present invention.

The control center 12 includes a detection module 121 and a control module 123. The detection module 121 is configured to detect whether the startup module 11 outputs an activation signal or a shutdown signal, and outputs the detected startup signal or the shutdown signal. To the control module 123. The detection module 121 also detects the working state of the data transmission module 15, that is, whether the data transmission module 15 receives the image data information to be projected and displayed.

The control module 123 is configured to output a corresponding control signal to the warning module 13 and the projection module 14 according to the activation signal or the shutdown signal, so that the warning module 13 performs the warning display and the projection module 14 to perform image projection. In this embodiment, the signal used for control includes a warning signal for controlling the warning module 13 to display the warning term and a control signal for controlling the image display of the projection module 14. The warning module 13 includes a display screen 131 and a driving control circuit 133. The driving control circuit 133 drives the display screen 131 to display or turn off the warning term according to the warning signal or the stop warning signal output by the control module 123 in the control center 12.

In this embodiment, the display screen 131 is disposed at a position where one side of the projection device 10 is easy for the user to see, for example, as shown in FIG. 3 , which is a schematic perspective view of the projection device 10 of FIG. 2 , and the display screen 131 It is disposed on the top surface of the projection device 10 and is adjacent to the position of the projection lens 143 provided to the projection device 10. In addition, the display 131 is a liquid crystal display. Of course, the display 131 can also be an OLED display (Organic). Light-Emitting Diode, organic light-emitting diode display, etc., are not limited to this.

2 and FIG. 3, the working process of the projection device 10 is specifically described:

After the projection device 10 is powered on, the startup module 11 receives the input operation and outputs a startup signal to the detection module 121. After detecting the startup signal, the detection module 121 outputs the startup signal to the control module 123, and the control module 123 outputs a corresponding warning signal to the drive control circuit 133, and the drive control circuit 133 outputs the warning term to the display screen 131 for display.

At the same time, the detection module 121 outputs the startup signal to the control module 123 after detecting the activation signal, and the control module 123 outputs a corresponding control signal to the projection module 14, and the projection module 14 receives the data from the data transmission module 15. The image data information to be projected and displayed is output to the optomechanical module 142, and the image data information to be projected and displayed is projected and displayed by the projection lens by the cooperation of the light source module 141.

When the image data information to be projected and displayed is displayed, and the power-on startup module 11 receives the input operation and outputs a shutdown signal, the detection module 121 outputs the shutdown signal to the control module 123 after detecting the shutdown signal, and controls The module 123 outputs a corresponding stop warning signal to the drive control circuit 133, and the drive control circuit 133 stops outputting the image data information of the warning term to the display screen 131. In other words, the warning module 13 stops displaying the warning word. The projection module 14 stops receiving image data information from the data transmission module 15, that is, the projection module 14 stops image projection display.

The projection device 10 starts to work when the projection device is powered on, and after the projection device 10 stops working, the warning module 13 stops working, in other words, the projection module 14 in the projection device 10 performs projection. When the light is output, the warning module 13 starts to display the work, and after the projection module 14 stops emitting the light, the warning module 13 stops the display of the warning term. The warning term is that the warning device display warning is improved as the projection device 10 synchronizes with the image display. Efficiency at the same time. The display effect and efficiency of the warning words are greatly improved, and the safety of the use of the projection device is improved, and the health of the user is ensured.

For a change, please refer to FIG. 4 , which is a schematic diagram of a functional module of the projection device shown in FIG. 1 according to a second embodiment of the present invention.

In the projection device 20, the control center 22 includes a detection module 221 and a control module 223, wherein the detection module 221 is configured to detect an activation signal or a shutdown signal output by the startup module 11. Further, the detecting module 221 further detects whether the data transmission module 25 receives the image data information to be projected and displays, and outputs a projection signal when detecting that the data transmission module 25 receives the image data information to be projected and displayed. When it is detected that the data transmission module 25 receives the image data information to be projected, it outputs a idle time signal.

The control module 223 controls the warning module 23 and the projection module 24 to operate according to the activation signal, the shutdown signal, the projection signal, and the idle time signal.

The alert module 23 includes image data information with a warning term, and the image data information of the alert term is output to the projection module 24 for projection display. It can be understood that the image data information of the warning term is the image data information signal corresponding to the warning term, and is stored in the projection device 20 as a data signal.

With respect to FIG. 4, the working process of the projection device 20 will be specifically described:

After the projection device 20 is powered on, the startup startup module 21 receives the input operation and outputs a startup signal to the detection module 221. After detecting the startup signal, the detection module 221 outputs the startup signal to the control module 223, and the control module 223 The corresponding warning signal is output to the warning module 23, and the warning module 23 outputs the image data information of the warning term to the projection module 24. The projection module 24 continues the projection display for the image data information of the warning term.

Further, when detecting that the data transmission module 25 receives the image data information to be projected and displayed, the detection module 221 outputs a projection signal, and the control module 223 outputs a corresponding stop warning signal to the warning module 23 according to the projection signal. The warning module 23 stops outputting the image data information of the warning term to the projection module 24; at the same time, the control module 223 outputs a control signal to the projection module 24 according to the projection signal, and controls the projection module 24 to provide the image transmission module 25. The image data information displayed by the projection is projected and displayed.

When the image data information to be projected and displayed is displayed, and the power-on startup module 21 receives the input operation and outputs a shutdown signal, the detection module 221 outputs the shutdown signal to the control module 223 after detecting the shutdown signal, and controls The module 223 controls the projection module 24 to stop receiving image data information from the data transmission module 25, that is, the projection module 24 stops image projection display.

For the projection device 20 shown in FIG. 4, in a modified embodiment of the present invention, after the projection device 20 is powered on, the boot-up module 21 receives an input operation and outputs a start signal to the detection module 221, and the detection module 221 detects After the start signal is sent to the control module 223, the detection module 221 detects that the data transmission module 25 does not receive the image data to be projected and outputs the idle time signal, that is, When the projection module 24 is not in the image projection display stage, the control module 223 outputs a corresponding warning signal to the warning module 23, and the warning module 23 outputs the image data information of the warning term to the projection module 24. The projection module 24 continues the projection display for the image data information of the warning term.

When the detection module 221 detects that the data transmission module 25 receives the image data information to be projected, that is, when the projection module 24 is in the image projection display stage, the control module 223 outputs a corresponding stop warning signal to the warning module. The warning module 23 stops outputting the image data information of the warning term to the projection module 24; meanwhile, the control module 223 outputs the projection signal to the projection module 24, and the projection module 24 provides the image transmission module 25 to be projected. The displayed image data information is displayed for projection.

When the image data information to be projected and displayed is displayed, and the power-on startup module 21 receives the input operation and outputs a shutdown signal, the detection module 221 outputs the shutdown signal to the control module 223 after detecting the shutdown signal. The group 223 controls the projection module 24 to stop receiving image data information from the data transmission module 25, that is, the projection module 24 stops image projection display.

For a modification, please refer to FIG. 5 , which is a schematic diagram of a functional module of the projection device shown in FIG. 1 according to a third embodiment of the present invention.

In the projection device 30, the control center 32 includes a detection module 321, a control module 323, and a time module 325. The detection module 221 is configured to detect an activation signal or a shutdown signal output by the startup module 11. The time module 325 is configured to time the time when the startup start module 31 outputs the startup signal, and after the startup startup module 31 outputs the startup signal for a predetermined time, the time module 325 outputs a timing completion signal to the control module 323.

The control module 323 controls the warning module 33 and the projection module 34 to operate according to the activation signal, the shutdown signal, and the timing completion signal.

The alert module 33 includes image data information with a warning term, and the image data information of the alert term is output to the projection module 34 for projection display. It can be understood that the image data information of the warning term is the image data information signal corresponding to the warning term, and is stored in the projection device 20 as a data signal.

With respect to FIG. 5, the working process of the projection device 30 will be specifically described:

After the projection device 30 is powered on, the boot-up module 31 receives the input operation and outputs a start signal to the detection module 321 . After detecting the startup signal, the detection module 321 outputs the startup signal to the control module 323. The control module 323 The corresponding warning signal is output to the warning module 33, and the warning module 33 outputs the image data information of the warning term to the projection module 34. The projection module 34 continues the projection display for the image data information of the warning term.

Further, the time module 325 counts the time when the start-up module 31 outputs the start signal, and after the start-up module 31 outputs the start signal for a predetermined time, the time module 325 outputs a timing completion signal to the control module 323. The control module 323 outputs a corresponding stop warning signal to the warning module 33, and the warning module 33 stops outputting the image data information of the warning term to the projection module 34; meanwhile, the control module 323 outputs a projection signal to the projection module 34, and then projects the projection The module 34 performs projection display on the image data information to be projected and displayed provided by the image transmission module 35.

When the image data information to be projected and displayed is displayed, and the power-on startup module 31 receives the input operation and outputs a shutdown signal, the detection module 321 outputs the shutdown signal to the control module 323 after detecting the shutdown signal, and controls The module 323 controls the projection module 34 to stop receiving image data information from the data transmission module 35, that is, the projection module 34 stops image projection display.

Claims (10)

A projection apparatus comprising: a projection module for emitting projection light and performing image projection display, the projection module comprising at least one projection lens, the projection lens for emitting the projection light, wherein The projection device also displays an alert word through the projection lens or an electronic screen disposed on the projection device, wherein the warning term is used to remind the user not to be in the area where the projection light is located.

The projection device according to claim 1, wherein the projection device further comprises a booting start module, a control center, and a warning module, wherein the booting start module is configured to receive an operation instruction for starting or closing the projection device, and Outputting a start signal or a shutdown signal to the control center, the control center outputs a control signal according to the start signal to control the projection module to emit a projection light, perform image projection display, and output an alarm signal to the warning module, or according to the The closing signal controls the projection module to turn off the projection light, and outputs a stop warning signal to the warning module, the warning module controls display of the warning term according to the warning signal, or controls according to the stop warning signal The warning term stops displaying.

The projection device according to claim 2, wherein the warning module comprises a display screen and a driving control circuit, wherein the driving control circuit drives the warning signal according to the warning signal or the stop warning signal outputted by the control center The display shows or turns off the warning term.

4. The projection apparatus according to claim 3, wherein the projection lens is disposed on a top surface of the projection device, and the display screen is disposed on a top surface of the projection device and adjacent to the projection lens.

The projection device according to claim 2, wherein the warning module includes image data information of the warning term, and image data information of the warning term is projected and displayed by the projection module.

The projection device according to claim 5, wherein the control center comprises a detection module and a control module, wherein the detection module is configured to detect whether the startup module outputs the activation signal Or the closing signal, and outputting the detected start signal or the shutdown signal to the control module, the control module outputting the warning signal according to the activation signal or according to the shutdown signal The stop warning signal is output.

The projection device according to claim 6, wherein the detection module outputs the startup signal to the control module after detecting the activation signal, and the control module controls the warning module Outputting image data information of the warning term to a projection module for projection display;

The detecting module further detects whether the image data information to be projected and displayed is ready to be completed. When detecting that the image data information to be projected is ready to be completed, the control module controls the warning module to stop the image of the warning term. The data information is output to the projection module.

The projection device according to claim 6, wherein the control module controls the warning module to display image data information of the warning term after detecting the activation signal. Output to the projection module for projection display;

The control module controls the alert module to stop outputting image data information of the alert term to the projection module after receiving the start signal and delaying for a predetermined time, and the control module outputs the control signal The projection module is controlled to perform projection display on the image to be projected and displayed.

The projection device of claim 8 , wherein the control center further comprises a time module, wherein the time module is configured to time the time when the booting module outputs the start signal, and After the predetermined time is reached, the timing signal is output, and the control module controls the warning module to stop outputting the image data information of the warning term to the projection module according to the timing signal.

The projection device according to claim 6, wherein the detection module further detects an operation state of the projection module after detecting the activation signal, and when detecting that the projection module does not perform image display, The control module controls the warning module to output image data information of the warning term to the projection module; when detecting the image display by the projection module, the control module controls the warning module to stop Outputting image data information of the warning term to the projection module to cause the projection module to perform image projection display.