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Display screen inspection glass device and display screen inspection glass purpose

A technology for observation mirrors and display screens, applied in installation, optics, instruments, etc., can solve problems such as lack of relaxation eye adjustment, easy fatigue of the display screen, enlarged eyes, etc.

Inactive Publication Date: 2008-10-15
王霖华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the prior art is that it only requires the viewing angle of the eyes to be increased, and does not require the adjustment of the eyes to be relaxed, and the eyes are prone to fatigue when watching at a close distance
The "special platform for placing display screen devices" in the prior art, such as computer desks or brackets for placing display screen devices (display device refers to e-books, mp4, monitors, etc. devices with display screens) lacks the function of relaxing eye adjustment, Eyes are prone to fatigue when looking directly at nearby displays

Method used

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  • Display screen inspection glass device and display screen inspection glass purpose
  • Display screen inspection glass device and display screen inspection glass purpose

Examples

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Embodiment 1

[0036]Embodiment 1: A viewing mirror device for a display screen, including a computer monitor 6, a viewing mirror 1, a bracket 2, etc., and its structure is shown in FIG. 8 . 3 is the display screen 3 of the computer monitor 6. An observation mirror 1 for viewing the display screen with both eyes is connected to the computer display 6 through the bracket 2 and the special connecting member 4. A convex lens group composed of two convex lenses, the optical centers of the two convex lenses are in the middle and the line connecting the front and rear optical centers is perpendicular to the plane of the display screen. The mirror gap between the two convex lenses is about 1 mm, and the diopter of each convex lens is It is 1D. Bracket 2 is a rod-type bracket that can adjust the distance between the display screen and the observation mirror. There are positioning screws 5 and a distance scale on the bracket 2. When the screw 5 is loosened, the bracket can be twitched and f≥u≥f÷(f+1 ...

Embodiment 2

[0037] Embodiment 2: A viewing mirror device for a display screen, the structure of which is shown in FIG. 6 . This display screen sight glass device is similar to the display screen sight glass device described in Example 1 (FIG. 8), the only difference being that it does not include a computer monitor. This display screen sight glass device has a sight glass 1 and support 2 that two eyes watch the display screen usefulness. Observing mirror 1 is made of two layers of convex lenses, and the convex lens is installed on the mirror frame. If the sunlight passes through the double convex lens vertically, it will form a focal point, and the focal length is f. There is a special component 4 specially used to connect a certain computer monitor on the bracket. The special component 4 is a plug-in component with grooves on three sides. According to the special component 4, the position 9 of the display screen can be determined, and the position of the display screen is in line with th...

Embodiment 3

[0038] Embodiment 3: A viewing mirror device for a display screen, the structure of which is shown in FIG. 4 . There is an observation mirror 1 and a bracket 2 for binocular viewing of the display screen. The observation mirror 1 is a convex lens. On the bracket 2, there are special components 4 spring clips for connecting the liquid crystal display (the liquid crystal display is a device with a display screen), as shown in Figure 5 As shown, the spring clip 4 is clamped on the liquid crystal display during use, and the position of the display screen can be determined according to the spring clip 4, and the bracket 2 can control the distance between the observation mirror 1 and the position of the display screen at f≥u≥f÷(f +1) within the scope, f is the focal length of the convex lens, and the unit of distance is meter (for example: f=0.2 meters, or f=0.25 meters, or f=0.33 meters, or f=0.4 meters, or f=0.5 meters, etc. ). Support 2 is a flexible bellows type support so the ...

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Abstract

The invention discloses a display screen inspection glass device and use of a display screen inspection glass, relating to convex, display and computer desk technical field. The invention changes a display screen observing the vicinity into a virtual image of the display screen observing the beyond so as to achieve the aim of comfort and antifatigue for observers by means of controlling the distance between the display screen and the convex. The invention has the characteristics that u is less than or equal to f and is more than or equal to f divided by (f+1), wherein, u refers to the distance between an inspection glass and the display screen, namely object distance; and f refers to the focus of the inspection glass. The display screen inspection glass also can be used for preventing myopia caused by long-time watching of the display screen, or used for curing pseudomyopia caused by long-time watching of nearby objects, or used for the presbyopic to watch the nearby display screen.

Description

technical field [0001] The invention relates to the technical fields of a convex lens, a display, a computer desk, and the like. Background technique [0002] When watching a computer at close range, because the display screen is close to the eyes, the adjustment and concentration of the eyes are in a tense state, and the eyes are prone to fatigue. In the prior art, the magnifying glass for viewing the display screen (for example, Chinese Patent No. 200420078331.9 "Magnifying Glass Protective Screen for Display") is a convex lens that plays the role of a magnifying glass placed in front of the display screen, and its subjective purpose is to increase the visual angle of the eyes rather than zoom out Object image, the distance between the magnifying glass and the display screen is small, so the virtual image of the display screen seen through the magnifying glass is still closer to the magnifying glass. The disadvantage of the prior art is that only the viewing angle of the ...

Claims

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Application Information

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IPC IPC(8): G02B7/02G02B7/105
Inventor 王霖华
Owner 王霖华
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