Desktop far image display device attached with zoom camera

Abstract

The utility model discloses a desktop remote image display device attached with a zoom camera, comprising a display main body comprising a housing, a window, and a display screen and an optical amplification module arranged in the housing; the light shield is arranged at the upper part of the shell and is used for shielding ambient light emitted to the window from the side surface and the top; the camera module is arranged on the shell or the light shield; the camera module comprises a camera shooting element capable of automatically focusing, the camera shooting element is electrified to initialize focusing and focus locking, the camera shooting element is electrically connected with a driving circuit of the display screen, and the camera shooting element is connected with one or more adjusting keys. The focus-adjustable camera is arranged on the desktop far image display equipment, so that the desktop far image display equipment can be clearly focused at different height positions, the reading and writing requirements of users with different heights are met, and the far vision time of the users in daily work and study is prolonged.

Description

Technical Field

[0001] The utility model relates to a desktop telescopic image display device attached with a zoom camera. Background Art

[0002] In recent years, head-up display devices have been promoted and applied in daily life as desktop office equipment or desktop reading equipment. Head-up display devices can form an enlarged virtual image of the built-in display screen and project it to a position close to infinity, delaying the user's visual fatigue and achieving myopia prevention and control.

[0003] Most of the existing desktop telescopic display devices are not equipped with cameras and can only be used as display devices, which cannot cover learning scenarios such as reading and writing. In order to expand the use scenarios of desktop telescopic display devices and increase the frequency of students' use in learning, so that students can look far away for a long time during the learning process, a camera module is added to the desktop telescopic display device to realize real-time image acquisition and input functions.

[0004] Due to the different heights of users, the distance between the desktop telescopic display device and the desktop is inconsistent. In order to ensure that the camera module can achieve the best image acquisition effect when used by different users, a focus-adjustable camera is required. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a desktop telescopic image display device attached with a zoom camera.

[0006] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:

[0007] A desktop telescopic image display device with a zoom camera attached, comprising:

[0008] The display body includes a housing, a window, and a display screen and an optical magnification module arranged inside the housing; the image emitted by the display screen is transmitted through the optical magnification module to form an enlarged virtual image and is presented through the window at a position not less than 3 meters in front of the human eye;

[0009] A light shield, disposed on the upper portion of the housing, for shielding ambient light from the side and top toward the viewing window; and

[0010] A camera module is arranged on a housing or a light shield; the camera module includes an image pickup element capable of automatic focusing, the image pickup element is electrically initialized to focus and lock the focus, the image pickup element is electrically connected to a driving circuit of the display screen, and the image pickup element is connected to one or more adjustment buttons.

[0011] Preferably, the adjustment button includes an autofocus button and / or a zoom button.

[0012] Preferably, the camera element can implement a corresponding optical zoom or digital zoom function in response to the input of the adjustment button.

[0013] Preferably, the camera element locks the focus and turns off the auto-focus function after responding to the input of the adjustment button.

[0014] Preferably, the imaging element is connected to a focus lock button.

[0015] Preferably, the imaging element comprises a zoom camera, a VCM motor and a main control chip, and has a USB interface and an HDMI interface; the main control chip has a storage unit for storing the zoom parameters of the imaging element.

[0016] Preferably, the shading cover has an extension portion extending forward beyond the housing, the camera module is arranged below the extension portion, and the acquisition range of the camera corresponds to the area in front of the display body.

[0017] Preferably, the desktop telescopic image display device further comprises a lighting element, and the lighting element comprises one or more light sources.

[0018] Preferably, the lighting element is fixed to the housing.

[0019] Preferably, it further comprises a bracket arranged at the lower part or the rear part of the display body, and the lighting element is arranged on the housing or on the bracket.

[0020] Preferably, the light sources are distributed in a linear, arc-shaped or ring-shaped manner.

[0021] The desktop telescopic image display device with a zoom camera attached provided by the utility model comprises: a display body, a shading hood and a camera module, wherein the camera module is arranged on a housing or a shading hood; the camera module comprises an image pickup element capable of automatic focusing, the image pickup element is electrically initialized to focus and lock the focus, the image pickup element is electrically connected to the driving circuit of the display screen, and the image pickup element is connected to one or more adjustment buttons. By arranging a zoom camera on the desktop telescopic image display device, the functions of image acquisition and real-time image display are increased. The camera shoots a book laid flat on the desktop, and then transmits the image to the built-in display screen, and forms an enlarged virtual image through the optical magnification module and is projected to the distance through the window; the user watches the telescopic image of the display body instead of watching the desktop book at a close distance, thereby reducing the visual adjustment lag caused by long-term close-range eye use, and further reducing the risk of myopia accumulation caused by the adjustment lag. By using a zoom camera, the desktop telescopic image display device can achieve clear focus at different height positions, thereby meeting the reading and writing needs of users of different heights, and increasing the user's far-sighted time in daily work and study. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the desktop telescopic image display device provided by the utility model;

[0023] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the desktop telescopic display device from another angle;

[0024] Figure 3 yes Figure 1 The block diagram of the desktop telescopic display device shown;

[0025] Figure 4 This is the hardware block diagram of the camera module. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] like Figure 1 and Figure 2 As shown, the desktop telescopic image display device provided by the utility model includes a display body 1, a light shield 3, a camera module 4 and a bracket 5.

[0029] The display body 1 includes a shell, a window 2, and a display screen and an optical magnification module arranged inside the shell; the window 2 is arranged on the front of the shell; the optical magnification module includes a beam splitter and a curved reflector, wherein the display screen is arranged facing the beam splitter, the beam splitter and the curved reflector are arranged opposite to each other, and the beam splitter is arranged close to the window; when in use, the display screen emits light in the direction of the beam splitter, at least part of the light is reflected by the beam splitter to the curved reflector, and is reflected back to the beam splitter by the curved reflector, and then at least part of the light passes through the beam splitter and through the window 2, and is emitted to the exit pupil position for imaging. The display body, through the optical magnification module, magnifies the image of the display screen, and presents it in the form of a virtual image through the window at a position not less than 3 meters in front of the human eye (preferably more than 5 meters). The user can see an enlarged virtual image of at least 3 meters away and at least 30 inches at the exit pupil position in front of the beam splitter, which enables the user to continue to see far during use. The light shield 3 is arranged at the upper part of the housing and is used to shield the ambient light emitted from the side and the top to the viewing window 2 of the display body 1 to reduce the reflected stray light and glare.

[0030] The desktop display device has a bracket 5 disposed at the bottom or rear of the display body 1. The height of the bracket 5 can be adjusted to adjust the height of the display body 1 from the desktop to accommodate users of different heights. Figure 1 and Figure 2 The structure of the bracket 5 is not fully illustrated. It can be understood that various retractable brackets in the prior art and on the market, such as computer brackets, multi-dimensional robotic arms, etc., can be used as the bracket of the display body 1, and the structure of the bracket 5 is not limited here.

[0031] In order to add real-time image acquisition and input functions to the desktop telescopic display device, a camera module 4 is added. The camera module 4 is arranged on the housing of the display body 1 or on the light shield 3, and is used to acquire desktop images. When the height of the display body 1 is adjusted, the height of the camera module 4 from the desktop changes. The camera module 4 includes an image sensor capable of automatic focusing, and the focal length of the image sensor can be automatically adjusted, so that images within the desktop range can be clearly acquired at different heights.

[0032] exist Figure 1 In the embodiment shown, the camera module 4 is arranged on the light shield 3. The light shield 3 has an extension portion extending forward beyond the housing, and the camera module 4 is arranged below the extension portion, and the acquisition range of the camera module 4 corresponds to the area in front of the display body 1. The camera module 4 can also be installed at the bottom of the housing of the display body 1; this arrangement is applicable to the display body without a light shield, and is also applicable to the display body with a light shield.

[0033] like Figure 3 and Figure 4 As shown, the camera module 4 includes an image pickup element capable of automatic focusing and a driving circuit. The image pickup element is powered on to initialize the focus and lock the focus. The image pickup element is electrically connected to the driving circuit of the display screen, and the image pickup element is connected to one or more adjustment buttons.

[0034] When the user uses the autofocus camera for reading or homework, the book placed on the table is fixed, but the user's frequently moving hands or occasionally turning the pages of the book will cause different height changes, causing the camera to zoom continuously, affecting the viewing experience and also affecting the service life of the camera. Therefore, a control unit corresponding to the focus lock function is added to the driving circuit of the camera element to turn off the autofocus function after the camera element focuses. Turning off the autofocus function can ensure that the user's frequently moving hands or turning the pages of the book will not trigger the autofocus action and will not interfere with the reading and writing experience.

[0035] In the camera module, there are also multiple adjustment buttons, which are respectively an autofocus button and one or more zoom buttons; wherein, the camera element turns off the autofocus function after initializing the focus at startup, so that the camera element can respond to the input of the autofocus button to realize the autofocus function and realize the focus lock; at the same time, the camera element can respond to the input of the zoom button to realize the corresponding optical zoom or digital zoom function, and after responding to the input of the adjustment button, the focus is locked and the autofocus function is turned off. The multiple zoom buttons are respectively a zoom-in button and a zoom-out button, and the zoom-in and zoom-out of the picture can be realized by optical zoom or digital zoom, which is not limited here.

[0036] Although the autofocus function ensures that the camera can have a clear image at different heights, when the camera is at a higher position, due to the viewing angle, the high-position camera will cover a larger area, and the fonts on the book will inevitably become smaller after imaging (or larger). At this time, you can use the zoom button to enlarge the font size displayed in the image (or use the zoom button to reduce the font size) to ensure that the displayed image is suitable for human eyes.

[0037] The above-mentioned focus lock function can be linked with the auto focus, zoom and other functions by setting the corresponding circuit in the driving circuit; it can also be achieved by setting an independent focus lock button and manually inputting instructions to turn off the auto focus function. Here, there is no limitation on its implementation method.

[0038] In addition, a storage unit is provided in the driving circuit of the camera element for storing the zoom parameters of the camera element to ensure that the focal length parameters of the camera element are consistent with previous ones when the camera is started next time. Therefore, for fixed users, the camera can be turned on and the most suitable state is reached by default, reducing user operations.

[0039] like Figure 4 As shown, the camera module includes a camera element (including a zoom lens, a CMOS sensor and a VCM motor), a main control chip and other peripheral circuits; the main control chip is provided with an HDMI interface to output images to the outside; and a USB interface is provided to realize power supply and drive control.

[0040] In order to adjust the brightness of the image captured by the camera and eliminate the shadow of the moving hand on the screen during reading and writing, the desktop telescopic image display device also includes a lighting element, which includes one or more light sources, and the light sources can be distributed in a linear, arc or ring shape. The lighting element is fixed to the housing, or the lighting element is arranged on the bracket, and is used to illuminate the collection area of ​​the camera on the desktop.

[0041] The desktop telescopic image display device with a camera attached provided by the utility model increases the functions of image acquisition and real-time image display by setting a zoom camera on the desktop telescopic image display device, so that the desktop telescopic image display device can achieve clear focus at different heights, thereby meeting the reading and writing needs of users of different heights and increasing the user's vision time in daily work and study. The above-mentioned automatic focus camera element can ensure that users of different heights can easily obtain the clarity that suits their height; and, by triggering the automatic focus at the start and the manual operation button for a limited number of times, the trouble of continuous focusing caused by the full automatic zoom during the use of the camera is avoided, and the risk of reduced camera service life is also avoided.

[0042] The above is a detailed description of the desktop telescopic display device with a zoom camera provided by the utility model. For those skilled in the art, any obvious changes made to the utility model without departing from the essence of the utility model will constitute an infringement of the patent right of the utility model and will bear corresponding legal liabilities.

Claims

1. A desktop telescopic image display device with a zoom camera attached, characterized in that include: The display body includes a housing, a window, and a display screen and an optical magnification module arranged inside the housing; The image from the display screen is transmitted through the optical magnification module to form an enlarged virtual image and is presented through the window at a position no less than 3 meters in front of the human eye; A light shield is arranged at the upper part of the housing and is used to shield the ambient light from the side and the top to the viewing window; and A camera module is arranged on a housing or a light shield; the camera module includes an image pickup element capable of automatic focusing, the image pickup element is electrically initialized to focus and lock the focus, the image pickup element is electrically connected to a driving circuit of the display screen, and the image pickup element is connected to one or more adjustment buttons.

2. The desktop telescopic image display device according to claim 1, characterized in that: The adjustment buttons include an auto-focus button and / or a zoom button.

3. The desktop telescopic image display device according to claim 2, characterized in that: The imaging element can respond to the input of the adjustment button to implement the corresponding optical zoom or digital zoom function.

4. The desktop telescopic image display device according to any one of claims 1 to 3, characterized in that: The camera element locks the focus and turns off the automatic focus function after responding to the input of the adjustment button.

5. The desktop telescopic image display device according to claim 1, characterized in that: The imaging element is connected to a focus locking button.

6. The desktop telescopic image display device according to claim 1, characterized in that: The imaging element comprises a zoom camera, a VCM motor and a main control chip, and has a USB interface and an HDMI interface; the main control chip has a storage unit for storing the zoom parameters of the imaging element.

7. The desktop telescopic image display device according to claim 1, characterized in that: The shading cover has an extension portion extending forward beyond the housing, the camera module is arranged below the extension portion, and the acquisition range of the camera corresponds to the area in front of the display body.

8. The desktop telescopic image display device according to claim 1, characterized in that: Also included is a lighting element comprising one or more light sources.

9. The desktop telescopic image display device according to claim 8, characterized in that: It also includes a bracket arranged at the lower part or the rear part of the display body, and the lighting element is arranged on the housing or on the bracket.

10. The desktop telescopic image display device according to claim 8, characterized in that: The light sources are distributed in a linear, arc or ring shape.

Images