CN2852197Y

CN2852197Y - Filtering apparatus

Info

Publication number: CN2852197Y
Application number: CN200520101850.7U
Authority: CN
Inventors: 傅百成; 石光华; 胡丹峰
Original assignee: HANYU SAFETY TECHNOLOGY Co Ltd ZHEJIANG
Current assignee: HANYU SAFETY TECHNOLOGY Co Ltd ZHEJIANG
Priority date: 2005-04-26
Filing date: 2005-04-26
Publication date: 2006-12-27
Anticipated expiration: 2015-04-26

Abstract

The utility model relates to the structural improvement of a light filtering device for removing glare, which comprises a camera and a display device connected with the camera. The utility model is characterized in that a light shielding liquid crystal connected with a data processing device is arranged in front of the camera; the light shielding liquid crystal is a dot matrix type liquid crystal screen, and the contrast grade is no less than 20: 1. Therefore, the utility model has the advantages of reasonable design, simple structure, obvious effect of glare protection and high safety performance. When the utility model removes the strong light, the strength of weak light can not be influenced simultaneously. Therefore, the utility model can be used for watching surrounding scenery clearly. Moreover, the utility model has the characteristics of low cost, easy popularization, etc.

Description

Filtering apparatus

Technical field

The utility model relates to a kind of safety feature, especially relates to a kind of structural improvement to the filtering apparatus of removing dazzle.

Background technology

Dazzle divides direct projection dazzle and reflected glare, the glare phenomenon of seeing when night, the driver drove a vehicle is because the intensity of light reflection that the headlight of this car shines the road surface is too little with ratio to the direct light intensity of quad headlight, make stronger light be incident to human eye, make on the retina of eyes photosensory cell that should source imaging, make the myosis of eyes suppress the signal of the corresponding dark background imaging of photosensory cell around, human eye is not seen or cannot see brightless background around the high light.

When driving at night, particularly during meeting, for the driver, the opposite dazzle that headlight produced of sending a car is very dangerous.Because this discomfort glare makes the driver can't see the road conditions of front clearly, it is the direct or indirect reason that a lot of traffic hazards take place.This also is a difficult problem that always perplexs the driver.For fear of this high light, the driver who has has used sunglasses to prevent dazzle.Though this has died down high light, sunglasses have also weakened the light from other scenery except that car light simultaneously, and so, the driver still can't see the road surface situation of front clearly.

Summary of the invention

The utility model mainly is to solve the existing in prior technology driving at night because dazzle makes human eye not see or cannot see brightless background around the high light easily, causes the technical matters of potential safety hazard etc.; Provide a kind of simple in structure, prevented that glare effect is obvious, the high filtering apparatus of security performance.

The utility model has solved existing in prior technology again and has been difficult to filtering high light individually, again the low light level is weakened when removing high light, causes scenery to be difficult to see clearly, the technical matters of the normal use of influence etc.; A kind of effective filtering high light is provided, and has not cut down the filtering apparatus of the low light level.

Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: filtering apparatus, comprise camera, the display device that links to each other with camera is characterized in that being provided with in the place ahead of described camera the liquid crystal that is in the light that links to each other with data processing equipment; The described liquid crystal that is in the light is the dot lcd screen, and its contrast is not less than 20: 1.Because the brightness at intense light source place and the brightness of surrounding environment scenery have very big contrast, after data processing equipment is determined the position of intense light source, the positional information of the intense light source that utilization obtains is here controlled the liquid crystal dot matrix on the liquid crystal that is in the light, make some point on the liquid crystal that is in the light become more light tight, make the more lighttight liquid crystal dots on the liquid crystal that is in the light just can block intense light source.The light at high light place is significantly weakened, and weaken hardly from the light of scenery on every side.Because the contrast of strong and weak light reduces, so, it is high-visible that scenery on every side just can become, but just the road pavement situation is very clear for the driver, greatly reduces the danger of driving at night.The display device here is a LCDs.

As preferably, described data processing equipment system is located at the video card on the mainboard by the mainboard that links to each other with photosensitive device, and the single-chip microcomputer that links to each other with mainboard composition.

As another kind of scheme, described data processing equipment comprises video frequency processing chip.Adopt video frequency processing chip can realize signal Processing easily.The chip here can adopt use always at present some multiple.Can reach the high processing effect, cost of manufacture is lower simultaneously.

Because the picture gathered in actual application of anti-dazzle camera is dark and produce cross light line, as preferably, described camera is provided with the light correcting unit.In order to the signal that collects is revised.

As preferably, described camera and the spacing that is in the light between liquid crystal are 2mm～30mm.

In addition, as preferably, described data processing equipment and be in the light and be provided with liquid crystal control circuit between liquid crystal.

Therefore, the utlity model has reasonable in design, simple in structure; Prevent that glare effect is obvious, the security performance height; When removing high light, do not influence the intensity of the low light level again, thereby can clearly see scenery on every side; And cost of manufacture is low, is easy to characteristics such as popularization.

Description of drawings

Accompanying drawing 1 is a kind of structural representation of the present utility model;

Accompanying drawing 2 is another kind of structural representations of the present utility model.

Embodiment

Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.

Embodiment 1:

Filtering apparatus comprises camera 3-1, and the display device 4 that links to each other with camera 3-1 is provided with the liquid crystal 3-2 that is in the light that links to each other with data processing equipment 2 in the place ahead of camera 3-1; The described liquid crystal 3-2 that is in the light is the dot lcd screen, and its contrast is 30: 1.Described data processing equipment 2 is the mainboard 2-1 that links to each other by with photosensitive device 1, is located at the video card 2-2 on the mainboard 2-1, and the single-chip microcomputer 2-3 that links to each other with mainboard 2-1 forms.Described camera 3-1 is provided with the light correcting unit.Camera 3-1 and the spacing that is in the light between liquid crystal 3-2 are 10mm.At data processing equipment 2 and be in the light and be provided with liquid crystal control circuit 10 between liquid crystal 3-2.

Being in the light, the lower point of penetrability just keeps off between the camera lens of intense light source and anti-dazzle camera on the liquid crystal, and other liquid crystal dots on the liquid crystal that is in the light is still the point of high-transmittance, the light of background scenery still can arrive anti-dazzle camera by the liquid crystal that is in the light preferably, see over from the angle of anti-dazzle camera like this, because intense light source has greatly been weakened (for example headlight of automobile), and the light of other scenery is not weakened significantly, so the phenomenon of brightness hard contrast has been eliminated, the reason that promptly causes producing dazzle has not existed, so the image of seeing from anti-dazzle camera is a distinct image, be the image that scenery can both clearly be seen around.The image that anti-dazzle camera obtains can be shown on the display screen, and when the image of per second demonstration surpassed 20 frames, what people saw was exactly a continuously dynamic image.Can't see road conditions clearly the time, just can on display screen, still see road conditions clearly, thereby effectively avoid the generation of accident because the opposite high light is dazzling as people like this.

Embodiment 2:

The data processing equipment of present embodiment is made of video frequency processing chip.Remainder is all roughly identical with embodiment 1, repeats no more here.

Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Although this paper has used terms such as photosensitive device, data processing equipment, display device morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.

Claims

1. a filtering apparatus comprises camera, and the display device that links to each other with camera is characterized in that being provided with in the place ahead of described camera (3-1) the liquid crystal that is in the light (3-2) that links to each other with data processing equipment (2); The described liquid crystal that is in the light (3-2) is the dot lcd screen, and its contrast is not less than 20: 1.

2. filtering apparatus according to claim 1, it is characterized in that at described data processing equipment (2) be the mainboard (2-1) that links to each other by with photosensitive device (1), be located at the video card (2-2) on the mainboard (2-1), and the single-chip microcomputer (2-3) that links to each other with mainboard (2-1) is formed.

3. filtering apparatus according to claim 1 is characterized in that comprising video frequency processing chip at described data processing equipment.

4. according to claim 1 or 2 or 3 described filtering apparatus, it is characterized in that being provided with the light correcting unit at described camera (3-1).

5. according to claim 1 or 2 or 3 described filtering apparatus, it is characterized in that the spacing between described camera (3-1) and the liquid crystal that is in the light (3-2) is 2mm～30mm.

6. filtering apparatus according to claim 4 is characterized in that the spacing between described camera (3-1) and the liquid crystal that is in the light (3-2) is 2mm～30mm.

7. according to claim 1 or 2 or 3 described filtering apparatus, it is characterized in that between described data processing equipment (2) and the liquid crystal that is in the light (3-2), being provided with liquid crystal control circuit (10).

8. filtering apparatus according to claim 4 is characterized in that being provided with liquid crystal control circuit (10) between described data processing equipment (2) and the liquid crystal that is in the light (3-2).