JPH04112230U - EC anti-glare inner mirror - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the weight by using an EC element as an anti-glare means for an inner mirror whose mirror angle is adjusted by an actuator. [Configuration] An electrochromic element (EC) is mounted on the glass substrate of the holder mirror 5 held by the actuator 4.
Element) 7 is arranged. [Effect] Eliminates the conventional heavy prism mirror and realizes lightweight and automatic dimming.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to an anti-glare inner mirror that does not require changing the mirror surface.

0002

[Conventional technology]

Conventionally, the means to mechanically switch and adjust the mirror surface of the inner mirror were mainly By using a prism mirror, switching that works with this prism mirror is possible. This is done by manual switching using the knob. Note that when using an actuator, Even when adjusting the mirror angle by remote control, switching the mirror surface during anti-glare cannot be done manually. The reality is that this is done by switching. Also, do not switch the mirror surface. The method is so-called half-mirror, which absorbs part of the amount of incident light and reduces the amount of reflected light. There are known cases of using .

0003

[Problem that the idea aims to solve]

The conventional example uses a prism mirror with a △-shaped cross section, so the mirror body is As the weight increases, the problem is that the vibration prevention structure becomes complicated due to the increase in weight. There is. Also, while the angle adjustment is done electrically, the anti-glare mechanism is the same as before. Manually performing this process lacked consistency in operability and was inconvenient to use. Therefore, the present invention uses an electrochromic thin film element (hereinafter referred to as EC) as an anti-glare means. ).

0004

[Means to solve the problem]

The present invention is held by an actuator as an anti-glare means for an inner mirror, and Transparent electrodes are sequentially placed on the glass substrate of the holder mirror, which enables angle adjustment electrically. An electrochromic system consisting of a first coloring layer, an insulating layer, a second coloring layer, and a thin electrode layer. This is an EC anti-glare inner mirror characterized by having a thin film element arranged therein.

[0005]

[Effect of invention] Manual switch to prevent glare from headlights at night or in tunnels. Or configure the dimmer switch to automatically operate when a certain amount of light is detected. When a specified voltage is applied to the electrode by means such as Depending on the application, the color develops with positive voltage and disappears with negative voltage, resulting in a 15% to 50% reaction. Achieves high emissivity and prevents glare.

[0006]

【Example】

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention, and FIG. 2 is a structure of an EC. FIG. 3 is an explanatory diagram showing the structure and principle, and is a block diagram showing the driving relationship.

[0007] In the present invention, an inner mirror 1 supported by a pivot (not shown) has a mirror hub. A frame 3 is located inside the housing 2 and is made of a rigid member. A holder mirror 5 is fitted to the actuator 4 and the mirror angle can be adjusted. It is equipped.

[0008] The holder mirror 5 holds a mirror surface that is a reflective surface, that is, a mirror 6. This mirror 6 is provided with an EC element 7. The EC element 7 is As an example, it has a laminated structure as shown in FIG. The EC element 7 is a main material and Indium oxide and tin oxide are used as a transparent electrode 9 on a glass substrate 8 as a first color. Iridium oxide and tin oxide are laminated as layer 10, and on top of that, penta-acid is layered as electrolyte layer 11. Tantalum chloride and water are further layered with tungsten trioxide as the second coloring layer 12. Well, the surface is laminated with aluminum that forms the electrode and reflective surface 13. And figure As shown, a power source is connected to the transparent electrode 9 and the electrode/reflection surface 13, and a voltage is applied. It is. By the way, if voltage is applied to the above electrodes 9 and 13 manually or by a sensor, , a chemical change occurs in the first coloring layer, changing from transparent to gray, and the second coloring layer changes. Similarly, it changes color to blue, reduces the reflectance of light, and prevents glare.

[0009] The reflectance is 50% when decolored during the day, and 15% when colored (anti-glare) at night. These reflectances can be controlled manually using the drive circuit 14 shown in Figure 3. Needless to say, both are possible.

0010

[Effect of the idea]

The present invention does not require the use of thick and heavy prism mirrors as mentioned above. Since a thin film layer of EC elements is placed on thin glass, mirrors that use actuators can Even with a built-in surface angle adjustment mechanism, there is no need to enlarge the mirror housing. , it has become possible to have a compact structure and suppress the generation of vibration. . Above all, the angle can be adjusted using an electric mechanism, which was previously impossible, and automatic dimming is possible. The mechanism can now be integrated into a single unit, significantly improving operability for the driver. This will reduce the burden on drivers and greatly contribute to safe driving.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an example of an EC element.

FIG. 3 is a block diagram showing driving relationships.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1... Inner mirror, 2... Mirror housing, 3... Frame, 4... Actuator, 5... Holder mirror, 6... Mirror, 7... EC element, 8... Glass substrate, 9... Transparent electrode, 10... First coloring layer, 11 ...Electrolyte layer, 12...Second coloring layer, 13...Electrode/reflection surface.

Claims (1)

[Scope of utility model registration request] [Claim 1] A transparent electrode, a first coloring layer, an insulating layer, and a first color forming layer are sequentially formed on a glass substrate of a holder mirror that is held by an actuator disposed in the housing of the inner mirror and that enables the mirror surface angle to be adjusted electrically. An EC anti-glare inner mirror characterized in that an electrochromic thin film element consisting of two color-developing layers and an electrode thin film layer is disposed.