JPH0533135U - Anti-glare mirror using optoelectronic device - Google Patents

Abstract

(57) [Summary] [Purpose] The driver can freely and efficiently select the anti-glare and non-anti-glare states appropriately and at a low cost.
We provide an anti-glare mirror with 0% emphasis. [Structure] A mirror using electrochromic as an optoelectronic element, a driving power supply for driving the electrochromic mirror, a polarity reversing circuit for reversing the polarity of a voltage applied from the driving power supply, and erasing / decoloring the circuit. For this purpose, the switch means is configured to be triggered by a manual operation of the switch and output two logic inversion signals of "1" or "0".

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an antiglare mirror using an optoelectronic element, and more particularly to an antiglare mirror for an automobile using an electrochromic element which is an optoelectronic element.

[0002]

[Prior Art]

 For automobile inner mirrors and door mirrors, a transparent electrode and an EC layer (one or more) of electrochromic elements, which are optoelectronic elements, are formed on a glass substrate to prevent glare of reflected light due to back light, and a reflective film. An electrochromic mirror that also functions as an electrode is used, and a voltage is applied between the electrodes to cause an electrochemical reaction to cause coloring or decoloring. This coloring or decoloring puts the electrochromic mirror in an anti-glare or non-glare state. When decoloring, the polarity of the applied voltage at the time of coloring is reversed to prevent glare. The state is appropriately selected and realized.

As a means for selecting the above, the one generally found in the related art is a back light sensor, or an automatic switching system by arranging a back light sensor and an ambient light sensor, thereby switching between wearing and decoloring, that is, antiglare. However, there are some cases where non-glare is selected and a manual switching method is subordinately attached, but despite the fact that the structure is complicated and expensive, the individual differences of the driver are ignored and it is a win. It was no exaggeration to say that the two were alternatives.

[0004]

[Problems to be solved by the device]

 As mentioned above, the method of selecting the anti-glare and non-anti-glare state found in the conventional anti-glare mirror is mainly the automatic switching means by the rear light sensor and the ambient light sensor, and consideration for individual differences of the car driver. Is a situation that has hardly been done. An object of the present invention is to provide an anti-glare mirror which solves the above-mentioned drawbacks, allows a driver to freely and efficiently select an anti-glare state and a non-anti-glare state functionally, is inexpensive, and places importance on the driver's choices. Is to

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a mirror using an electrochromic element as an optoelectronic element, a driving power supply for the mirror, and a polarity reversing circuit for reversing the polarity of the voltage applied from the driving power supply and erasing the color. It is composed of switching means for outputting two logic inversion signals of "1" or "0" by manually operating the switch for operating the circuit.

A timer function for setting an application time for coloring and erasing may be provided between the switching means and the polarity reversing circuit. A momentary push switch and a T-FF may be used as the switching means. Further, a switching switch having one circuit and two contacts and an RS-FF may be used as the switching means.

[0007]

[Action]

 When the switch is manually turned on or off, the switching means outputs two logic inversion signals of "1" or "0" to the polarity inversion circuit, and the polarity of the applied voltage is inverted to reverse the polarity of the applied voltage to the electrochromic device. The element is colored or decolored, and the electrochromic mirror is switched between antiglare and nonglare.

[0008]

【Example】

 The invention is explained below with reference to the drawings on the basis of exemplary embodiments. FIG. 1 is a block diagram showing an embodiment of an anti-glare mirror using an electrochromic mirror (hereinafter referred to as ECM) incorporating an electrochromic element which is an optoelectronic element of the present invention.

In the figure, 1 is an ECM, 2 is a driving power source, 3 is a polarity reversing circuit, 4 is a switching means, 5 is a manually operated switch, and in this case, a self-locking push switch or a toggle switch is used. FIG. 2 shows an embodiment of the circuit used in FIG.

As shown in FIG. 2, the polarity reversing circuit 3 has four transistors for the input signals from the points b and d, respectively. The transistors are Darlington, and when the applied voltage is applied to the point e by the complementary connection, the point is turned on. The point f is grounded, and the point c is grounded when an applied voltage is applied to the point f. The driving power supply 2 is designed to supply a stable applied voltage of 1.35V to the ECM 1 by the stabilized power supply circuit.

The switching means 4 is composed of a manually operated switch 5 and a transistor Tr6, and the transistor Tr6 corresponds to the inverter 7 of FIG. 1, and the logical values of points a and c are always negative logic operation by Tr6. I take it. When the switch 5 is ON, the logical value of the point a is "1" while the logical value of the point c is "0". Further, when the switch 5 is OFF, the logical value of the point a is "0" by turning ON the Tr6 and the logical value of the point c is "1". The switch should be installed in the shift lever, its vicinity, around the steering wheel, around the instrument panel, armrests, door lining, or foot-operated type.

The operation of the present invention will be described below with reference to FIG. When the driver feels dazzled by the reflected light of the rear light from the inner mirror or the door mirror, the ECM1 is colored by turning on the self-locking push switch or toggle switch of the switch 5. That is, when the switch 5 is turned on, the logical values of the points c and d in FIG. 2 become "0" and the transistor Tr6 is turned off, and the logical value of the point a, that is, the point b becomes "1". As a result, the transistors Tr11 and Tr12 are turned ON, the transistors Tr13 and Tr14 are turned ON, a voltage of 1.35V is applied to the electrode f of the ECM1, the electrode e is grounded, the ECM1 is colored, and the anti-glare state is set. enter. On the other hand, since the logical value of the point d is "0", the transistors Tr7, Tr8, Tr9, Tr10 are off.

Next, when the driver does not feel dazzling by the back light and wants to erase the inner mirror and the door mirror, the driver turns off the switch 5 to change the polarity and erase the ECM 1. In that case, the logical value of the point c becomes "1", the transistor Tr6 is turned on, and the logical values of the points a and b become "0". As a result, the transistors Tr11 and Tr12 are turned off, and the transistors Tr13 and Tr14 are also turned off. On the other hand, since the logical values of the points c and d are "1", the transistors Tr7, Tr8, Tr9 and Tr10 are turned on. As a result, the polarity of the voltage applied to the electrodes e and f of the ECM1 is reversed, the voltage of 1.35 V is applied to the electrode e, and the electrode f is grounded. The ECM1 is decolored and is in a non-glare state rather than an anti-glare state. Move to.

FIG. 3 shows a second embodiment in which a timer function is added between the switching means 4 and the polarity reversing circuit 3 of the embodiment shown in FIG. 1 to regulate the voltage application time at the time of coloring / discoloring. A block diagram showing an example is shown in FIG. 4, and a timer circuit inserted between points a and c and points b and d between the switching means 4 and the polarity reversing circuit 3 in FIG. 2 showing the circuit example. Indicates. As shown in the figure, a monostable multivibrator is combined with RS-FF so that the output pulse width becomes a predetermined value by C and R in the circuit 9 for the trigger input at points a and c. Therefore, it is possible to prevent excessive voltage from being applied to the ECM1 for a long time, thereby preventing deterioration of the equipment.

FIG. 5 is a block diagram showing a third embodiment in which a momentary push switch is also used as the switch 5. As shown in the figure, the switching means 4 is composed of a switch 5 which is a momentary push switch and a T-FF6, and two logical values "1" and "0" are outputted from the T-FF6 for each trigger input from the switch 5. Is inverted. In this case as well, the timer function may be added between the switching means 4 and the polarity reversing circuit 3 to define the coloring / decoloring time (for example, coloring 5 to 10 seconds, decoloring 3 to 7 seconds).

FIG. 6 is a block diagram showing a fourth embodiment in which the switch 5 is a one-circuit two-contact changeover switch. As shown in the figure, the switching means 4 is composed of a switch 5 which is a two-contact changeover switch and an RS-FF7, and when the switch 5 is switched, the set or reset input signal is the S and R terminals of the RS-FF7. Is input to the Q and Q'terminals, and the logic signals of "1" and "0" are inverted and output. In this case as well, the timer function may be added between the switching means 4 and the polarity reversing circuit 3 to define the coloring / decoloring time. As the switch 5, other than the one shown in the figure, a dual lock release switch or a dual momentary switch can be used.

[0017]

[Effect of the device]

 The anti-glare mirror using the optoelectronic element of the present invention respects individual choices 100% when selecting the anti-glare / non-glare state of the inner mirror and the door mirror, and the driving is accompanied by the AT of the car. It is possible to quickly select the anti-glare or non-glare state according to the reduction of the operation, and it is possible to efficiently and safely secure the vehicle at a lower cost.

The effect of the second aspect is to prevent deterioration of equipment including the ECM by defining the time for coloration / decoloration. Further, claims 3 and 4 have the effect that the switch operation is easy and the mounting is compact.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an antiglare mirror using an optoelectronic element of the present invention.

FIG. 2 is a circuit example of FIG.

FIG. 3 is a block diagram showing a second embodiment.

FIG. 4 is a diagram showing a timer circuit.

FIG. 5 is a block diagram showing a third embodiment.

FIG. 6 is a block diagram showing a fourth embodiment.

[Explanation of symbols]

 1 ECM 2 Drive power supply 3 Polarity inversion circuit 4 Switching means 5 Switch 6 T-FF 7 R-S-FF 10 Timer function

Claims (4)

[Scope of utility model registration request] 1. An anti-glare mirror using an optoelectronic element that changes color by erasing and coloring by electrical control, comprising: a mirror using electrochromic as an optoelectronic element; and an antiglare on the optoelectronic element. A driving power supply for supplying an applied voltage for coloring / decoloring for non-glare, a polarity reversing circuit for reversing the polarity of the applied voltage for the coloring / decoloring, and a manual operation of a switch for operating the circuit. 2. An antiglare mirror using an optoelectronic element, comprising: switching means for outputting two logically inverted signals of "1" or "0". 2. An antiglare device using an optoelectronic element according to claim 1, further comprising a timer function between the polarity reversing circuit and the switching means for setting a voltage application time at the time of coloring and erasing. mirror. 3. The antiglare mirror using an optoelectronic element according to claim 1, wherein the switching means is composed of a momentary push switch and a T-FF. 4. The anti-glare mirror using an optoelectronic element according to claim 1, wherein the switching means is composed of a switch having one circuit and two contacts, and an RS-FF.