CN2234380Y

CN2234380Y - Automatic antidazzling light-sensitive device of improved rear-view mirror for car

Info

Publication number: CN2234380Y
Application number: CN 95227008
Authority: CN
Inventors: 戴财丁
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-11-21
Filing date: 1995-11-21
Publication date: 1996-09-04
Anticipated expiration: 2005-11-21

Abstract

The utility model relates to an improved automatic antidazzling color changing device for automobile rear-view mirrors. The utility model is characterized in that the inner sides of inner and the glass are respectively coated with conducting film layers; the outer side surface of an outward polarizing plate is coated with a metallic film layer; one side of an inward polarizing plate is coated with a layer of aluminum coating layer; the outer of the aluminum coating is sprayed with a layer of protective paint; two conducting electrodes are respectively clamped on the inner and the outer glass coated with the conducting film. The product can change color with the distance to the head lamp light of the back automobiles, and the outside of the device is not required to be connected to a power supply. The utility model has the advantages that the power consumption is less, and the device can be easily and conveniently arranged on the prior rear-view mirrors of the automobile.

Description

The automatic anti-dazzle color-changing device of improved Rear-view mirror for automobile

The utility model relates to the automatic anti-dazzle color-changing device of a kind of improved Rear-view mirror for automobile, especially refer to a kind of Rear-view mirror for automobile that can automatic anti-dazzle variable color, this back mirror at night can variable color prevents dazzle with the far and near distance of rear automobile front lamp light, and must external source, consumption of current is little, can be convenient to again be installed in voluntarily on the original visor afterwards of automobile.

General Rear-view mirror for automobile can provide the safety of driving on the driving visual field by day the time, the strong illumination that tends to be subjected to back car during night has become strong dazzle to influence vision on the contrary, because the headlight of front vehicle often exposes on the back mirror of front vehicles, and the eyes that dazzle reflexes to steerman have been formed, cause eyes to produce the situation generation that the of short duration dimness of vision maybe can't be opened, the traffic safety that has jeopardized motorist; At present, the automobile rearview mirror that a kind of electric slurry formula changeable colour is arranged, this back mirror pours into the electricity slurry in the middle of lying in double glass, this glass inner side is coated with magnesium oxide, the mat power lead is with external automobile power source again, and after electricity slurry conduction, magnesium oxide can produce physical change, causes minute surface to become blueness thereby can reach the function of anti-dazzle variable color, yet the automobile rearview mirror of the electric slurry formula of this kind changeable colour has following shortcoming:

1. the speed of response of anti-dazzle variable color is slower, because the electricity slurry is slower with the physical change speed of response that magnesium oxide is produced, therefore after back mirror is subjected to the irradiation of headlight of back car, the speed of variable color is slow, the speed of variable color Receding colour is also slow, can't be at instant color-changing, so lost the function of its anti-dazzle variable color.

2. consumption of current is big, because this back mirror greatly can't be by the compact battery supply of electrical energy, so the external automobile power supply is with supply energy source, so can't reach the application of convenience because of current sinking.

3. because this back mirror must utilize power lead overlap joint automobile power source, installation is difficult for, so this back mirror must be installed by the professional, can't install voluntarily.

The purpose of this utility model is to provide that a kind of automatic sensitization discoloration speed is fast, consumption of current is low and long service life, the automatic anti-dazzle color-changing device of the improved Rear-view mirror for automobile that can install voluntarily again.

The utility model is to realize like this, this product system comprises set medial and lateral light-sensitive resistance on back mirror that component compositions such as inside and outside glass, liquid crystal layer, inside and outside Polarizer, two conductive film layers, metallic diaphragm, aluminium coated and protective paint layer form and the backsight picture frame, and the IC (CMOS IC) of arranging in pairs or groups is formed; Wherein this liquid crystal series of strata clamping is between inside and outside glass; inside and outside Polarizer is to be affixed to inside and outside glass outer side respectively; inside and outside glass inner side is coated with conductive film layer respectively; outer Polarizer outer surface metal-plated membrane layer; interior Polarizer one side-line is coated with one deck aluminium coated; aluminium coated is outer and spray one deck protective paint layer, and two conductive electrodes are clipped in respectively and are coated with the inside and outside on glass of conducting film.

Below in conjunction with drawings and Examples the utility model is described in detail.

Fig. 1 is the External view of the utility model.

Fig. 2 is the exploded drawings of the utility model.

Fig. 3 is the cutaway view of the utility model.

Fig. 4 is the circuit diagram of the utility model.

Fig. 5 is the enforcement illustration of the utility model.

Fig. 6 is the enforcement illustration of the utility model.

Please cooperate and consult shown in the various figure, the Rear-view mirror for automobile of the utility model system is made up of interior glass (1), outer glass (2), liquid crystal layer (3), interior Polarizer (4), outer Polarizer (5), two conductive film layers (6), metallic diaphragm (7), aluminium coated (8) and protective paint layer members such as (9); Wherein liquid crystal layer (3) is that clamping is between inside and outside glass (1), (2) layer, inside and outside Polarizer (4), (5) are to be affixed to inside and outside glass (1), (2) outside respectively, side also is coated with conductive film layer (6) respectively within inside and outside glass (1), (2), make inside and outside glass (1), (2) form the glass that can conduct electricity, side surface and be coated with the very thin metallic diaphragm of one deck (7) outside the outer Polarizer (5), this metallic diaphragm (7) can increase the distortion of its reflectivity with layer image in eliminating; Side-line utilizes the mode of vacuum evaporation and plates one deck aluminium coated (8) reflected image within the interior Polarizer (4), must not cause the image distortion distortion through the mercury mirror, paints one deck protective paint layer (9) again outside aluminium coated (8).Moreover two conductive electrodes (10) are to be clipped in the inside and outside glass (1), (2) that are coated with conducting film respectively to go up [as shown in Figures 2 and 3].

Please cooperate and consult 1 and shown in Figure 4, in the utility model lies in and is respectively equipped with on the backsight picture frame 20, outside light-sensitive resistance (100), (200), the circuit control of collocation multifunctional single wafer micro computer IC (COMS IC), it is operated that its control signal all produces a square-wave signal by inner formula, in being somebody's turn to do, outside light-sensitive resistance (100), (200) be its sensitization strong and weak signals to be input in the CMOS IC handle, wherein inboard light-sensitive resistance (100) is only with the power supply height of the strong and weak automatic compensation back mirror of light, thereby the light transmittance of control back mirror.

When daytime, light was strong, outside light-sensitive resistance (200) is input to its photoreceptor signal in the COMS IC to be handled, when being judged as daytime, promptly do not have control voltage and be supplied in liquid crystal layer (3), therefore this back mirror can not be as good as with general automobile rearview mirror in variable color, the image of back car can be reflected fully.

To night, outside light-sensitive resistance (200) is attenuated to below the light quantity setting value because of the outer sunray of car, IC (COMS IC) just produces a square-wave voltage and delivers to liquid crystal layer (3), and by inboard light-sensitive resistance (100) according to the strong and weak automatic compensation of the big lamp wiring of back car for being added on liquid crystal layer (3) voltage height, thereby make liquid crystal arrangement angle just rotate change with voltage, so the back mirror light transmission capacity is changed thereupon, thereby reach the function of minute surface automatic color-changing, to exempt the dazzling of light, guarantee the traffic safety of driving.

Moreover, see also Fig. 5 and shown in Figure 6, because the utility model utilizes the alkali environment-friendly battery need the external automobile power supply, thus can press from both sides (30) at the mirror that backsight picture frame (20) dorsal part be provided with an activity so that with the utility model back mirror clamping on the original back mirror of automobile (40); In addition, the utility model be except can making things convenient for clamping automobile room mirror (40), but also can design the same clamping with the both sides observation mirror of external form in the left and right both sides of automobile afterwards on the visor.Moreover the back mirror of the automatic sensitization discoloration of the utility model system starts automatically along with the light and shade of sunshine, and is provided with a vibration inducted switch (500), when car just starts general supply in advancing, thus must not establish switch, so consumption of current is extremely low.Because of it adopts the alkali environment-friendly compact battery not take up space again and alleviates the back mirror load capacity.As shown in Figure 1, the preceding brightness adjustment button (300) that is provided with of backsight picture frame (20), can determine the shading value of automatic color-changing according to user's hobby, this brightness is adjusted button (300) side and is provided with a display lamp (400) [LED], and display lamp (400) can be bright when photoconductive cell is moved because of the dark variable color in sky.Also be provided with a temperature sensitive resister (600) on the back mirror of the utility model in addition, the function of indoor temperature meter can be provided on minute surface.

In sum, the utility model is the Rear-view mirror for automobile of the automatic anti-dazzle variable color of a kind of full automaticity, because the utility model system adopts the fast characteristic of liquid crystal reaction, so the speed of automatic anti-dazzle variable color can be finished the variable color of the depth of car headlight strong illumination reaction subsequently in 50 μ SEC; The utility model only uses small-sized alkali environment-friendly battery to make power supply, must the external automobile power supply, so consumption of current is quite low, can be installed in voluntarily on the former back mirror of automobile for the customer in addition.

Claims

1. automatic anti-dazzle color-changing device of improved Rear-view mirror for automobile; in system comprises; outer glass; liquid crystal layer; in; outer Polarizer; two conductive film layers; metallic diaphragm; on back mirror that component composition such as aluminium coated and protective paint layer forms and the backsight picture frame set within; outside light-sensitive resistance; collocation IC (COMS IC) is formed; wherein this liquid crystal series of strata clamping is interior; between the outer glass; in; outer Polarizer is in being affixed to respectively; outer glass outer side; it is characterized in that: in; outer glass inner side is coated with conductive film layer respectively; outer Polarizer outer surface metal-plated membrane layer; interior Polarizer one side-line is coated with one deck aluminium coated; aluminium coated is outer and spray one deck protective paint layer, and two conductive electrodes system is clipped in respectively and is coated with within the conducting film; on glass outward.

2. the automatic anti-dazzle color-changing device of improved Rear-view mirror for automobile according to claim 1 is characterized in that the backsight picture frame is provided with a brightness and adjusts button.

3. the automatic anti-dazzle color-changing device of improved Rear-view mirror for automobile according to claim 1 is characterized in that being provided with a vibration inducted switch in the circuit of back mirror.