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Concave mirror device for viewing display screen

A technology of display screen and concave mirror, used in computer desks, monitors, and optical fields, can solve the problem that concave mirror can't read text and so on.

Inactive Publication Date: 2010-05-05
王霖华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention or the technical problem to be solved are: to overcome the shortcoming that the concave mirror can not read the text, utilize the property that the concave mirror can put the object image far away, provide a kind of using the concave lens as the observation mirror that can "watch the near display screen" A device that becomes a "distant virtual image of the display screen" for eye comfort or prevention of myopia caused by prolonged viewing of nearby display screens

Method used

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  • Concave mirror device for viewing display screen
  • Concave mirror device for viewing display screen
  • Concave mirror device for viewing display screen

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Embodiment 1: a kind of concave mirror device of watching display screen, its structure is as figure 1 as shown, figure 2 is the schematic diagram of its optical path. It is mainly composed of a display 3 with a display screen, a spherical concave mirror 1 and a bracket 2 for viewing the display screen. The display 3 has the function of flipping the image left and right (or the text displayed in the display is left and right reversed), the viewer 5 can see the display screen on the display 3 from the magnifying glass 1, and 6 is the position of the display screen, and the display screen and the concave mirror The positional relationship or coordination relationship is: if the parallel light 4 is used to illuminate the concave mirror along the viewing direction, the parallel light 4 can be gathered into a focal point 7 after being reflected by the concave mirror 1, and the light ray 4 from the concave mirror 1 to the focal point 7 The path is the focal length f, the r...

Embodiment 2

[0050] Embodiment 2: a kind of concave mirror device for viewing display screen, image 3 with Figure 4 is a schematic diagram of its structure, image 3 is the side view, Figure 4 is the front view. This device is made up of mobile TV 3 with display screen 6 , concave mirror 1 and bracket 2 . The characters displayed in the TV 3 are left and right reversed, and the base of the bracket 2 is the cap 17 . The light 4 of the display screen 6 is reflected to the eyes through the concave mirror 1, and the eyes can see the virtual image of the display screen 6 zoomed away from the concave mirror 1. 0.99f≥u≥5×f÷(5+f),

Embodiment 3

[0051] Embodiment 3: a kind of concave mirror device for viewing display screen, Figure 5 with Image 6 is a schematic diagram of its structure, Figure 5 is the side view, Image 6is the front view. This device is to be made up of special-purpose device 11 (11 is the empty box that window is arranged at the front), concave mirror 1 and support 2 by placing the device with display screen. The base of 11 and support 2 is a cap 16. There is an empty position 6 for placing a display screen on 11. The light 4 emitted from the position 6 can be reflected to the eyes through the concave mirror 1, and the eyes can see the empty position 6 on the special device 11 for placing the device with a display screen from the concave mirror 1. When viewing, devices with display screens that do not belong to the device can be placed in 11 to view. 100×f÷(100+f)≥u≥6×f÷(6+f).

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Abstract

The invention discloses a concave mirror device for viewing a display screen, which mainly relates to the technical field of optics and also relates to the technical fields of displays, computer desks, and the like. The concave mirror device for viewing the display screen comprises a concave mirror for viewing the display screen and a bracket. The concave mirror device for viewing the display screen is characterized in that the concave mirror and the display screen have the position relation that mu is not less than f / (1+f) and not more than 0.999f, and characters displayed in the display screen are inverted from left to right or the device is provided with a reflecting mirror. The device can convert the function of viewing the nearby display screen into the function of viewing a remote erected virtual image of the display screen, can lead eyes to be comfortable and resist fatigue or prevent nearsightedness caused by viewing the nearby display screen for a long time and has small chromatic aberration and clear objective images.

Description

technical field [0001] The invention mainly relates to the field of optical technology, and also relates to technical fields such as displays and computer desks. Background technique [0002] Patent CN1694609A "A Digital Window Display Device" adopts a concave mirror to reflect the image of the small display screen in order to increase the aesthetic feeling of the product, so that when people watch the small display screen on an air conditioner and other electrical appliances, it produces the aesthetic effect of watching a large display screen. It is the property of using a concave mirror to magnify the object image rather than the property of using the concave mirror to zoom in on the object image. Because the image of the object seen from the concave mirror is upside down, the characters cannot be viewed through the concave mirror in the prior art. In the prior art, a viewing mirror (for example, patent 200420078331.9) that can read text and is used for viewing a display ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B17/06G02B17/08G02B7/182G02B7/198
Inventor 王霖华
Owner 王霖华
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