CN2216257Y

CN2216257Y - Double-functional goggles

Info

Publication number: CN2216257Y
Application number: CN 95208041
Authority: CN
Inventors: 李长安; 于振瑞
Original assignee: TRANSPORTATION ENGINEERING COLLEGE PLA
Current assignee: TRANSPORTATION ENGINEERING COLLEGE PLA
Priority date: 1995-04-14
Filing date: 1995-04-14
Publication date: 1995-12-27
Anticipated expiration: 2005-04-14

Abstract

The utility model relates to a liquid crystal eye protecting device which solves the problem that a driver is dazzled during meeting in nighttime because the long-distance lamp of the opposite vehicle is blinding, comprising glasses legs, a glasses frame, two pieces of eyeglass and a control circuit. A transparent conductive film on the top glass of a piece of liquid crystal light valve eyeglass is divided into an upper and a lower insulating parts by a dividing line. The color of the whole eyeglass is changed in daylight, so the utility model can be used as a pair of sunglasses. The color of the upper half part of the eyeglass is changed to shade light and prevent dazzle during meeting in nighttime, and the lower half part of the eyeglass is in a transparent state to enable a driver to see roadways clearly. Besides, the utility model is driven by the double electric sources of a button cell and a solar cell, which solves the problems of inconvenient use and frequent replacement caused by ordinary cells. The utility model has the double functions of eye protection away from strong light in daytime and dazzle prevention for drivers in nighttime.

Description

Double-functional goggles

The utility model relates to a kind of liquid crystal eye-protective device, the antiglare equipment when particularly the driver meets at night.

Liquid crystal eye-protective device of the prior art all is to utilize the light valve of full wafer variable color simultaneously to serve as screening glass, and utilize button cell to serve as power supply, its deficiency is: when night, the shading of meeting mirror sheet avoided high beam dazzling, because the transmittance of eyeglass is very low, and the light and shade contrast makes that more greatly the driver does not see the road surface, and when the more shallow driver of making of eyeglass variable color degree of depth adjustment can see the road surface clearly, cause and dazzle the eyes poor effect thereby can not block the opposite high beam again effectively.Because the button cell capacity is little, need often to change simultaneously, use inconvenience.

When providing a kind of meeting at night, the purpose of this utility model can block the difunctional safety goggles that the opposite high beam can be seen the road surface again clearly effectively.

The utility model comprises liquid crystal light valve eyeglass and the eyeglass control circuit in mirror leg, picture frame, the picture frame; the structure that it is characterized in that described liquid crystal light valve eyeglass comprises the liquid crystal cell of making top flat glass, dry plate glass and the encapsulants encapsulation of electrode of nesa coating that has of liquid crystal and both sides thereof; wherein the conducting film on top flat glass or the dry plate glass is divided into the two halves up and down of mutually insulated with cut-off rule, respectively pastes the layer of transparent protective seam at the polaroid/checking bias slice outside surface of liquid crystal cell both sides.This safety goggles also can be provided with polaroid/checking bias slice realization by a first half at liquid crystal cell both sides glass.

The utility model specific embodiment accompanying drawings is as follows:

Fig. 1 Lunettes-masque structure synoptic diagram;

Fig. 2 (A) eyeglass sectional view;

Fig. 2 (B) eyeglass front elevation;

Fig. 2 (C) dry plate glass figure;

Fig. 2 (D), (E) top flat glass are cut apart synoptic diagram;

Fig. 3 eyeglass control circuit schematic diagram.

Embodiment 1:

As shown in Figure 1, this safety goggles comprises mirror leg 1, picture frame 2, liquid crystal light valve eyeglass 3, at mirror leg and picture frame shaft coupling place master switch K1 is installed, the mirror leg is opened during use, K switch 1 closure, control circuit work is installed double-point double-throw switch K2 in picture frame one side, and opposite side is installed control circuit and button cell 4, non-crystal silicon solar cell 5 is installed, middle installation photoresistance 6 above picture frame on the picture frame above the eyeglass.Wherein lens structure is shown in Fig. 2 (A); in the both sides of liquid crystal 7 is top flat glass 9 and the dry plate glass 10 that has electrically conducting transparent membrane electrode 8; around liquid crystal, be packaged into liquid crystal cell with encapsulants 11; outside surface at the polaroid/checking bias slice 12 of liquid crystal cell both sides is respectively pasted layer of transparent protective seam 13; also dry plate glass 10 of top flat glass 9(wherein) nesa coating on is divided into two halves up and down such as Fig. 2 (D) of mutually insulated with cut-off rule; (E) shown in; wherein cut-off rule can be a straight line; the also curve of sub-elliptical; the two halves electrode is used contact conductor 8-1 respectively up and down; 8-3 draws; the dry plate glass top electrode is drawn with lead-in wire 8-2; as Fig. 2 (C); wherein eyeglass control circuit schematic diagram as shown in Figure 3; photoresistance Rg its negative pole of connecting with button cell Eb connects with non-crystal silicon solar cell Es negative pole; the solar cell positive pole is formed electric power loop through anodal the connection with photoresistance of diode Z1; square-wave oscillator 14 negative inputs that the electric power loop negative pole is realized through K switch 1 and CMOS oscillatory circuit connect; the square-wave oscillator electrode input end connects with an intermediate contact B1 among the double-point double-throw switch K2 through current-limiting resistance R0; contact A1 connects with diode cathode in Dui Ying two contacts with it; contact C1 connects with diode cathode; another intermediate contact B2 of K switch 2 connects with the output terminal O2 of oscillator and the first half conducting film contact conductor 8-1 of top flat glass respectively; contact A2 connects with B2 or unsettled in Dui Ying two contacts with it; contact C2 connects with the Lower Half conducting film contact conductor 8-3 of top flat glass, and dry plate glass conductive electrode lead-in wire 8-2 connects with another output terminal O1 of oscillator.Daytime is when using, throwing double throw switch K2 in the second place is B1-C1, B2-C2 connects, solar cell Es power supply this moment is the button cell charging simultaneously, oscillator output is added on the conducting film of the halves up and down electrode of top flat simultaneously, makes the variable color of full wafer eyeglass, and panchromatic variation is protected the purpose function to reach high light to the eyeglass transmittance with extraneous light intensity at this moment, solar cell serves as power supply on the one hand, serves as the effect of light intensity sensing on the one hand.K switch 2 connects primary importance when using night, be B1-A1, B2-A2 connects, oscillator is exported on the first half conducting film electrode that only is added in top flat and by button cell and is powered, the other side's vehicle high beam light beam is injected photoresistance resistance is reduced when meeting, oscillator output alternation square wave, drive the shading of eyeglass the first half, avoid the other side's high beam light beam dazzling the eyes to the driver, and being provided with electric field, the eyeglass Lower Half is the printing opacity attitude, guarantee that the driver sees road surface, the place ahead clearly, eyeglass is full impregnated light recovery ortho states behind the meeting.

Embodiment 2:

The present embodiment does not change transparent conductive electrode, and only the first half at liquid crystal cell both sides glass is provided with polaroid/checking bias slice, respectively pastes the layer of transparent protective seam at the outside surface of polaroid/checking bias slice.The base of polaroid/checking bias slice is linear or the oval curve that makes progress.Eyeglass control circuit such as Fig. 3, will be wherein double throw switch K2 change single-pole double-throw switch (SPDT) into, A1, B1, C1 connect constant, A2, B2,3 connections of C2, all the other and embodiment 1 are identical.

The utility model advantage: 1, a nesa coating on glass in the liquid crystal light valve eyeglass is divided into up and down two parts, can carry out respectively brightness adjustment control, accomplish and make separately variable color and the whole eyeglass variable color of eyeglass half part, full wafer variable color on daytime is made sunglasses and is used, and first half variable color at night covers the other side's high light, and Lower Half keeps clear state to enable to see clearly the road surface; 2, adopt dual power supply to drive design, powered by button cell night, and drive with solar cell daytime, can be simultaneously the button cell charging, saves by general battery and serve as the use inconvenience that power supply causes and change frequently tired; 3, adopt amorphous silicon solar cell that its spectral response and human eye are coincide, be easy to make the strip integrated-type and be convenient to the glasses global design, serve as simultaneously the light sensor effect; 4, realized the wear-resistant protection on TN liquid crystal lens surface; 5, IC oscillator output wave mode can be programmed by the outside, and mask writes the chip internal memory and realizes.

Claims

1, a kind of difunctional safety goggles; comprise liquid crystal light valve eyeglass and eyeglass control circuit in mirror leg, picture frame, the picture frame; the structure that it is characterized in that described liquid crystal light valve eyeglass comprises the liquid crystal cell of making top flat glass, dry plate glass and the encapsulants encapsulation of electrode of nesa coating that has of liquid crystal and both sides thereof; wherein the conducting film on top flat glass or the dry plate glass is divided into the two halves up and down of mutually insulated with cut-off rule, respectively pastes the layer of transparent protective seam at the polaroid checking bias slice outside surface of liquid crystal cell both sides.

2, difunctional safety goggles according to claim 1, the structure that it is characterized in that described eyeglass control circuit is that photoresistance and button cell its negative pole of connecting connects with the solar cell negative pole, the solar cell positive pole connects with photoresistance through diode cathode and forms electric power loop, the electric power loop negative pole connects with the square-wave oscillator negative input through K switch 1, the square-wave oscillator electrode input end connects with an intermediate contact B1 among the double-point double-throw switch K2 through current-limiting resistance, contact A1 is that the button cell branch road connects with diode cathode in Dui Ying two contacts with it, contact C1 is that the solar cell branch road connects with diode cathode, another intermediate contact B2 of K switch 2 connects with output terminal of square-wave oscillator and the first half conducting film electrode of top flat glass or dry plate glass respectively, contact A2 is unsettled or connect with B2 in Dui Ying two contacts with it, contact C2 connects with the latter half conducting film electrode of top flat glass or dry plate glass, and the conducting film electrode of dry plate glass or top flat glass connects with another output terminal of square-wave oscillator.

3, difunctional safety goggles according to claim 1 and 2 is characterized in that the cut-off rule in the conducting film electrode on top flat glass or the dry plate glass is straight line or sub-elliptical deltoid.

4, a kind of difunctional safety goggles; comprise liquid crystal light valve eyeglass and eyeglass control circuit in mirror leg, picture frame, the picture frame; the first half that it is characterized in that liquid crystal cell both sides glass is provided with polaroid/checking bias slice, respectively pastes the layer of transparent protective seam at polaroid/checking bias slice outside surface.

5, difunctional safety goggles according to claim 4 is characterized in that polaroid/checking bias slice base is linear or the elliptical curve-shaped that makes progress.