CN216622852U

CN216622852U - Display screen amplifying device

Info

Publication number: CN216622852U
Application number: CN202123272018.1U
Authority: CN
Inventors: 宣以政
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-05-27
Anticipated expiration: 2031-12-24

Abstract

The utility model relates to a display screen amplifying device, which comprises a display screen, a reflector A, a reflector B, a convex lens and a shell, wherein a light path system consisting of two parallel reflectors with opposite mirror surfaces ensures that the linear distance between the convex lens and the display screen is shortened, and the object distance is kept long enough, thereby creating conditions for adopting a low-power convex lens, reducing the thickness of the lens and the volume weight of the whole machine, and effectively overcoming the defect of the conventional mobile phone box head display product caused by too short object distance; the method is suitable for various scenes, can enlarge and watch videos and read characters, can also experience 3D movies and games in VR mode, and particularly can be directly watched by myopia users without picking up glasses; when the mobile phone is watched in a transverse screen mode, the mobile phone is turned by 90 degrees leftwards or rightwards, can be watched in a vertical screen mode, is continuously turned by 90 degrees and can be used as a mobile phone screen amplifier; the utility model has the advantages of simple manufacture, small volume, light weight and convenient use.

Description

Display screen amplifying device

Technical Field

The utility model relates to the technical field of convex lenses and optics, in particular to a display screen amplifying device.

Background

The product which is relatively close to the mobile phone box type head display product in the current market is a mobile phone box type head display product. The mobile phone box type head display is generally composed of a mobile phone, a convex lens, a head and the like, the distance (object distance) from a mobile phone screen to the convex lens is approximately 4-6 CM, and according to the lens imaging principle: 1/u (object distance) +1/v (image distance) =1/f (focal length), when the image distance is v =25cm (optimum distance for human eyes), the focal length f is approximately equal to 7cm, so a convex lens with higher multiple is needed, which is one of the reasons for generating eye fatigue, dizziness and discomfort; if the object distance is increased, the distance from the screen of the mobile phone to the convex lens is increased, so that the volume and the weight of the equipment are increased, and the oppressive feeling of the weight of the mobile phone to eyes is increased due to the lever action of the mobile phone at the forefront end; in addition, the mobile phone box type head display product is suitable for 3D movies, animations and games, and is not suitable for common video and text reading; the eye mask can only be worn for use, but cannot be used in an open mode, and is particularly inconvenient for users with myopia.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defect of a mobile phone box type head display product caused by too short object distance, and provides a display screen amplifying device formed by two parallel reflectors.

In order to achieve the purpose, the utility model adopts the technical scheme that:

1. the utility model provides a display screen amplification device, including the display screen, speculum A, speculum B, convex lens and casing, the display screen is perpendicular with the horizontal plane, the contained angle with speculum A is 45 degrees, speculum A and speculum B are parallel, the mirror surface is relative, constitute 45 degrees angles with the horizontal plane, the length and width of speculum A is the same with the length and width of speculum B, light reflects when shooting to the inclined plane of speculum A from the display screen level, turn 90 degrees and take place the reflection again when shooting to the inclined plane of speculum B downwards, turn 90 degrees with the horizontal direction to shoot to convex lens, adopt the convex lens that the focus is greater than the object distance, form upright enlarged virtual image at the display screen homonymy.

2. The distance between the display screen and the reflector A is adjustable; the distance between the reflector A and the reflector B is adjustable; a convex lens is arranged between the reflector B and the eyes, and the position of the convex lens is adjusted to ensure that the image is clearest; and adjusting the inclination of the whole machine and the horizontal plane to enable the display screen to be in the best human eye visual angle.

3. The display screen adopts one of integral type display screen, disconnect-type display screen two kinds of modes, and integral type display screen means that host computer and screen are all-in-one like the cell-phone, and disconnect-type display screen is driven by the driver card, and electronic equipment is connected to driver card one end, and another end connects disconnect-type display screen, and electronic equipment adopts one of smart mobile phone, panel computer, notebook computer, desktop computer.

4. And the reflector A (2) and the reflector B (3) adopt one of a plane mirror and an isosceles right triangular prism. Preferably, a flat mirror is used.

5. The convex lens can adopt one of plano-convex lens, biconvex lens and Fresnel lens, and preferably adopts the plano-convex lens.

The utility model has the following characteristics:

1. the light path system composed of two parallel reflectors with opposite mirror surfaces shortens the straight line distance between the convex lens and the display screen, so that the object distance is kept long enough, conditions are created for adopting the low-power convex lens, the thickness of the lens and the volume weight of the whole machine are reduced, and the defects of the conventional mobile phone box type head display product caused by too short object distance and too high magnification of the convex lens are effectively overcome.

2. The mobile phone box-type head display product can be used for watching 2D works and reading characters in an enlarged mode, can also be used for VR (virtual reality) experience of 3D movies and games, and particularly can be directly watched by a user with myopia without picking up glasses, so that the defect that the existing mobile phone box-type head display product is single in use is overcome.

3. When the viewer watches in the horizontal screen mode, the viewer turns 90 degrees to the left or right and can watch in the vertical screen mode; the glass can be continuously turned for 90 degrees and can be used as a mobile phone screen amplifier; the wireless remote controller can replace a human hand to touch the display screen, and the electronic equipment is controlled wirelessly.

Drawings

FIG. 1 is a schematic structural diagram of an integrated display screen according to the present invention

FIG. 2 is a schematic structural diagram of a detachable display screen according to the present invention

FIG. 3 is a schematic perspective view of the present invention

The names of the components in the figures are indicated by the following arabic numerals:

1. display screen, 2, reflector A, 3, reflector B, 4, convex lens, 5, image I, 6, image II, 10, separated display screen, 13, electronic device, 15, drive card.

Detailed Description

The following examples are further described in detail.

The first embodiment is as follows:

as shown in fig. 1 and 3, a display screen magnifying device comprises a display screen (1), a reflector a (2), a reflector B (3), a convex lens (4) and a casing, wherein the display screen (1) is perpendicular to a horizontal plane, forms an angle of 45 degrees with the reflector a (2), and is parallel to an AD plane of the reflector a (2), a CD plane of the reflector a (2) is parallel to an EF plane of the reflector B (3), a mirror surface is opposite to the EF plane, and forms an angle of 45 degrees with the horizontal plane, a length and a width of the reflector a (2) are the same as those of the reflector B (3), light of an image one (5) in the display screen (1) is reflected when horizontally irradiating to an inclined plane of the reflector a (2), and is reflected when 90 degrees downwards irradiate to the inclined plane of the reflector B (3), and 90 degrees irradiate in the horizontal direction to form an upright image two (6) with equal size, the focal length of the convex lens (4) is larger than an object distance, and a vertically enlarged virtual image is formed on the same side of the display screen (1).

The display screen (1) adopts one of an integrated display screen and a separated display screen, and the integrated display screen preferably adopts a smart phone.

And the reflecting mirror A (2) and the reflecting mirror B (3) adopt one of a plane mirror and an isosceles right triangular prism, and preferably adopt a plane mirror.

The convex lens (4) adopts one of a plano-convex lens, a biconvex lens and a Fresnel lens, and preferably adopts a plano-convex lens.

The length and width of the display screen (1) are less than or equal to the length and width of the AD surface of the reflector A (2), the distance between the display screen (1) and the reflector A (2) is adjustable, and the distance can be zero; the distance between the reflector A (2) and the reflector B (3) is adjustable and can be zero; a convex lens (4) is arranged between the reflector B (3) and eyes, and the position of the convex lens (4) is adjusted to ensure that the image is clearest; the length and width of a window corresponding to the convex lens (4) are more than or equal to the length and width of the AD surface of the reflector A (2); the inclination of the whole machine and the horizontal plane is adjusted to ensure that the display screen (1) is at the best viewing angle of human eyes.

The VR glasses can be used for watching 3D movies and games, the convex lens (4) can be used for watching the enlarged display screen (1), and the convex lens (4) can be not used for watching the display screen (1) with the original size.

When the viewer watches in the horizontal screen mode, the viewer turns 90 degrees to the left or right and can watch in the vertical screen mode; the glass can be continuously turned for 90 degrees and can be used as a mobile phone screen amplifier; a wireless remote controller can replace a human hand to touch the display screen, and the smart phone is controlled wirelessly.

Example two:

as shown in fig. 2, a display screen amplifying device is characterized by comprising an electronic device (13), a driving card (15), a separate display screen (10), a reflector a (2), a reflector B (3), a convex lens (4) and a casing, wherein the separate display screen (10) is driven by the driving card (15), one end of the driving card (15) is connected with the electronic device (13), the other end of the driving card is connected with the separate display screen (10), and the electronic device (13) adopts one of a smart phone, a tablet computer, a notebook computer and a desktop computer.

Preferably, the separate display screen (10) is a liquid crystal display screen.

The display screen amplifying device is different from the display screen amplifying device shown in the attached figure 1 in that the integrated display screen (1) is replaced by the electronic equipment (13), the driving card (15) and the separated display screen (10), and the rest is the same.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a display screen amplification device, its characterized in that, includes display screen (1), speculum A (2), speculum B (3), convex lens (4) and casing, display screen (1) is perpendicular with the horizontal plane, constitutes 45 degrees angles with speculum A (2), and speculum A (2) are parallel with speculum B (3), the mirror surface is relative, constitute 45 degrees angles with the horizontal plane, and the length and width of speculum A (2) is the same with the length and width of speculum B (3).

2. A display screen enlarging apparatus according to claim 1, wherein light is reflected from the display screen (1) when it is directed horizontally towards the inclined plane of the reflector a (2), reflected when it is turned 90 degrees downwards towards the inclined plane of the reflector B (3), and turned 90 degrees is directed horizontally towards the convex lens (4), the focal length of the convex lens (4) is larger than the object distance, and a virtual image of positive vertical magnification is formed on the same side of the display screen (1).