CN2032333U

CN2032333U - High speed automatic light adjustable spectacles

Info

Publication number: CN2032333U
Application number: CN 88200974
Authority: CN
Inventors: 郑剑昌
Original assignee: LONGWU WELFARE FACTORY HANGZHOU
Current assignee: LONGWU WELFARE FACTORY HANGZHOU
Priority date: 1988-01-26
Filing date: 1988-01-26
Publication date: 1989-02-08

Abstract

The utility model relates to protective spectacles used to protect the visual sense of the human body for the rapid change of the outside light ray. The utility model adjusts the light flux entering into visual nerve according to the adjusted size of the pupil made by a man, liquid crystal material is adopted to make spectacle lens, background light is combined to consult, light transmittance rate of the spectacle lens is controlled by a light sensor device, an oscillator and a driving circuit. The effective light amount entered into eyes of the strong light shooting directly can be unchanged essentially after filtering by spectacle lens.

Description

High-Speed Automatic light modulation glasses

The utility model relates to a kind of protective glasses, is mainly used in when extraneous light takes place sharply to change, to the protection of human visual.

The eyes of human body, under certain background light, can only be by the light of certain luminous flux.When extraneous light is strong, will produce dazzling sensation, and then the damage eyes.When intersection at the night vehicle, under the stimulation of the other side's automotive headlamp high light, can feel Light-headedness as driver's steering vehicle, the steelworker is in the face of red as fire molten steel, oneself the eyes of can burning.So; light-sensitive glasses arise at the historic moment; yet; the disadvantage that this light-sensitive glasses exist is that variable color time length (generally needs 30 seconds to one minute clock times; even the longer time could produce color changeable effect); thereby when extraneous light takes place sharply to change,, then can't play the effect of protection people eyes as the automobile meeting at night.

In view of the problem of above-mentioned existence, the purpose of this utility model provides a kind of High-Speed Automatic light modulation glasses, to satisfy when extraneous light takes place sharply to change, to the protection of eyes.

High-Speed Automatic light modulation glasses are regulated the principle that the pupil size is regulated the luminous flux that enters optic nerve according to human eye, adopt liquid crystal material to make eyeglass, in conjunction with bias light as a reference, control the transmittance of liquid crystal material (minute surface) through light sensor, oscillator and driving circuit, make the high light of direct projection eyes, after eyeglass filtered, the effective light quantity when entering eyes reached constant substantially.

High-Speed Automatic light modulation glasses are owing to have High-Speed Automatic dimming effect (the light modulation time was less than 0.02 second), thereby has a versatility widely, protective glasses when it not only can be used as the intersection of driver's vehicle at night, and can be used as steelshop, field study, out on tours, and all protective glassess that extraneous light generation sharp change in elevation is arranged such as military affairs, health care, And can guarantee that it looks the thing function at normal light.

Accompanying drawing has been described embodiment of the present utility model.

Fig. 1 is the structural representation of High-Speed Automatic light modulation glasses.

Fig. 2 is miniature common batteries structural drawing

Fig. 3 is the control circuit figure of High-Speed Automatic light modulation glasses

Fig. 4 is High-Speed Automatic light modulation eyeglass structural representation

Fig. 5 is applied to make steel the structural representation of a kind of High-Speed Automatic light modulation glasses of work post

The voltage oscillogram of Fig. 6 node 23,24 outputs

For the ease of understanding the utility model, the embodiment that provides in reference to the accompanying drawings is elaborated below:

Fig. 1 has described the structural drawing of High-Speed Automatic light modulation glasses, it contains a mirror holder 1 and two mirror pin 9, be provided with solar cell 2 and eyeglass 3 in the place ahead of mirror holder 1, between two eyeglasses 3, be provided with light activated element 4, above light activated element 4, be provided with bias light sensor 7, in the both sides of bias light sensor 7, be respectively equipped with electric capacity 5,6 and controller 8.

In order to reduce the production cost of light modulation glasses, be not provided with on the mirror holder under the situation of solar cell 2, can adopt miniature common batteries as the energy.At this moment, a power lead 10 that has an attaching plug 11 can be set on mirror pin 9, make its work energy as controller 8.

Fig. 2 has described the structural representation of the miniature common batteries that High-Speed Automatic light modulation glasses are adopted when solar cell 2 not being set.This battery is made up of battery case 16 and battery cover 15 two parts, and battery is contained in the battery case 16, and there is safety pin 17 outside of battery case; On battery cover 15, be provided with power switch 12, jack 13 and fine setting 14.Only need during use and will get final product in the plug 11 insertion jacks 13, entire cell can be in the upper pocket of people's clothing.

Fig. 3 is the control circuit figure of High-Speed Automatic light modulation glasses.In control circuit, dashed rectangle partly for the control integrated package, places in the

controller

8, and 2 is solar cell, and 3 is that eyeglass, 4 is light activated element, and 5,6 is that capacitor, 7 is the bias light sensor.The waveform of control circuit output is the square waveform shown in Fig. 6.

Fig. 4 is the structural representation of High-Speed Automatic light modulation eyeglass.Wherein a is the eyeglass that adopts the meander configuration liquid crystal material to make, and it is made up of polarized light piece 18, optical glass 19, transparency electrode 20 and meander configuration liquid crystal material 21, and initial clarity can reach more than 75%.

The eyeglass of b for adopting the ferroelectric liquid crystals material to make, it is made up of optical glass 19, transparency electrode 20 and ferroelectric liquid crystals material 22, and its initial clarity can reach 95%.

The High-Speed Automatic light modulation glasses of wearing for the people who generally suffers from eye illness can be at the eyeglass that adopts the meander configuration liquid crystal material to make or adopt the front of the eyeglass that the ferroelectric liquid crystals material makes to add one and proofread and correct glass.

Fig. 5 has described a kind of structural representation of the High-Speed Automatic light modulation glasses that are applied to make steel work post.When this Light-modulating mirror was installed on steelworker's the bongrace, And can be 180 ° of rotations, and bongrace can be rotated, be close to the time spent by illustrated arrow.

Fig. 6 has described the voltage oscillogram of node 23,24 outputs, and in order to guarantee the serviceable life of eyeglass 3, the output voltage waveforms of node 23,24 is a rectangular wave, and its average direct current is pressed and is necessary for zero.

The principle of work of High-Speed Automatic light modulation glasses is to regulate the principle that the pupil size is regulated the luminous flux that enters optic nerve according to human eye, size with bias light is reference, regulate the light transmission of minute surface, thereby make the luminous flux that enters eyes, have relative stability.The concrete course of work is as follows: when eyeglass 3 when no signal (being that extraneous light does not have acute variation), the equivalent capacity of the liquid crystal in capacitor 6 and the minute surface 3 balances each other, this moment, eyeglass 3 was pellucidity, and it is the same with the eyeglass of common goggles, has to look the thing function normally.

When bias light when being dark, as at night, because light activated element 4 is located at the place ahead of mirror holder 1, bias light sensor 7 is located at the top of mirror holder 1, when head-on penetrating high light, bias light sensor 7 And do not accept light, still are in the dark, and this moment, its resistance was bigger, and be arranged on the solar cell 2 of mirror holder 1 front, under strong illumination, promptly provide the control energy to controller 8, it is started working.In this simultaneously, light activated element 4 is subjected to the irradiation of high light, its value diminishes, according to circuit theory as can be known, draw the voltage that is added on the eyeglass of making by liquid crystal material 3 through node 23,24, to be bigger, thereby minute surface 3 transparencies will descend, thereby the luminous flux that guarantees to enter eyes be constant.

When bias light becomes clear, as on the daytime that sunlight is arranged, at this moment, impinge upon only strong on the bias light sensor 7, so its resistance will be little, that is the value of its two

end node

25,26 also will be little; Simultaneously if head on incident light, the light that impinges upon on the light activated element 4 is not strong, then its value will be big, according to circuit theory as can be known, at this moment, the voltage that is added on the eyeglass of being made by liquid crystal material 3 of being drawn by node 23,24 will be little, so eyeglass is transparent, it has the same with the goggles thing function of normally looking.

If bias light becomes clear, the light of head-on injecting on the light activated element 4 also is strong, at this moment, become moderately from 23,24 the voltages on the eyeglass of being made by liquid crystal material 3 of being added in of drawing that go between, thereby the light transmission of eyeglass 3 obtains suitable adjustment, and the luminous flux that enters eyes is remained unchanged.

Claims

1, a kind of High-Speed Automatic light modulation glasses that contain mirror holder (1), eyeglass (3), mirror pin (9), it is characterized in that between two eyeglasses (3) of mirror holder (1), being provided with light activated element (4), be provided with bias light sensor (7) in the top of light activated element (4), both sides in bias light sensor (7), be respectively arranged with electric capacity (5), (6) and controller (8), be provided with solar cell (2) in the place ahead of mirror holder (1), the work energy of controller (8) is provided by solar cell (2).

2, a kind of High-Speed Automatic light modulation glasses that contain mirror holder (1), eyeglass (3), mirror pin (9), it is characterized in that between two eyeglasses (3) of mirror holder (1), being provided with light activated element (4), be provided with bias light sensor (7) in the top of light activated element (4), both sides in bias light sensor (7), be respectively arranged with electric capacity (5), (6) and controller (8), mirror pin (9) is provided with the power lead (10) of a heading power plug (11), and the work energy of controller (8) is provided by power lead (10) by miniature common batteries.

3, High-Speed Automatic light modulation glasses according to claim 1 and 2 is characterized in that its controller (8) controlled by control circuit.

4, High-Speed Automatic light modulation glasses according to claim 2 is characterized in that the miniature common batteries that is adopted is made up of battery case (16) and battery cover (15) two parts.Battery case (16) is provided with safety pin (17), and battery cover (15) is provided with power switch (12), jack (13) and fine setting (14), and battery case can be in coat pocket.

5, High-Speed Automatic light modulation glasses according to claim 1, it is characterized in that eyeglass (3) is by polarized light piece (18), optical glass (19), transparency electrode (20) and meander configuration liquid crystal material (21) are formed, or by optical glass (19), transparency electrode (20) and ferroelectric liquid crystals material (22) are formed.

6, High-Speed Automatic light modulation glasses according to claim 2, it is characterized in that eyeglass (3) is made up of polarized light piece (18), optical glass (19), transparency electrode (20) and meander configuration liquid crystal material (21), or by optical glass (19), transparency electrode (20) and ferroelectric liquid crystals material (22) are formed.

7,, it is characterized in that adopting the eyeglass that the meander configuration liquid crystal material makes or adopt the front of the eyeglass that the ferroelectric liquid crystals material makes to be provided with one and proofread and correct glass according to claim 5 or 6 described High-Speed Automatic light modulation glasses.

8, High-Speed Automatic light modulation glasses according to claim 1 and 2 is characterized in that these glasses can also be installed on the bongrace, and And can be 180 ° of rotations, and the time spent can be close to bongrace.