Rearview mirror device

1. A rearview device for a motor vehicle, comprising:

a rearview element including a first layer and a second layer;

a housing supporting at least a portion of the rearview element;

a light transmitting region formed to penetrate the second layer of the rearview element;

a light emitter for emitting a first light including a first wavelength in a first direction through the light transmitting region; and

a light receiver for detecting a second light entering a second direction through the light transmitting region, the second light entering the second direction including a second wavelength corresponding to the first wavelength,

wherein a first function of the rearview device or an electrically operating configuration connected with the rearview device is executed when the second light including the second wavelength corresponding to the first wavelength is detected by the light receiver by a predetermined amount or more during a predetermined period, and wherein a transmittance of the first layer is larger than a transmittance of the second layer, or

wherein a function of the rearview device or an electrically operating configuration connected with the rearview device is executed when an object is located within a certain distance from light transmitting region, and wherein a transmittance of the first layer is larger than a transmittance of the second layer.

2. The rearview device of claim 1 , wherein the light emitter and the light receiver are comprised of one component in form of a sensor unit and are a photocoupler.

3. The rearview device of claim 1 , wherein the first wavelength is equal to the second wavelength.

4. The rearview device of claim 1 , wherein

a time at which the second light including the second wavelength is detected by the light receiver by a predetermined amount or more during the predetermined period is defined as a first time),

a time at which the first function is executed is defined as a second time, and

the first time and the second time are different from each other.

5. The rearview device of claim 4 , wherein

a second function is executed when the second light including the second wavelength is detected by the light receiver by the predetermined amount or more again after the first time,

a third function is executed when the second light including the second wavelength is detected by the light receiver by the predetermined amount or more during a first period, and

a fourth function is executed when the second light including the second wavelength is detected by the light receiver by the predetermined amount or more during a second period.

6. The rearview device of claim 1 , wherein

the light emitter includes a first light emitter and a second light emitter,

the light receiver includes a first light receiver and a second light receiver, and

the light transmitting region includes a first light transmitting region and a second light transmitting region,

wherein

the first light emitter and the first light receiver are comprised of a first photocoupler,

the second light emitter and the second light receiver are comprised of a second photocoupler, and

wherein the first photocoupler is located at an area corresponding to the first light transmitting region, the second photocoupler is located at an area corresponding to the second light transmitting region.

7. The rearview device of claim 6 , wherein

a fifth function is executed when the second light including the second wavelength is detected by the second light receiver by the predetermined amount or more after the second light including the second wavelength is detected by the first light receiver by the predetermined amount or more,

wherein a sixth function is executed when the second light including the second wavelength is detected by the first light receiver by the predetermined amount or more after the second light including the second wavelength is detected by the second light receiver by the predetermined amount or more, with the fifth function in particular being different from the sixth function.

8. The rearview device of claim 1 , further comprising:

a controller, and

an indicator indicating to a user that the first function is executed,

wherein

the indicator is located adjacent to the light transmitting region,

a state of the indicator is changed when the first function is executed, and

the controller controls the sensor unit and/or the indicator.

9. The rearview device of claim 1 , wherein

an electrically operating configuration connected with the rearview device is at least one of an electrochromic element, a display, a speaker, a communication module and an Electronic Toll Collection System,

wherein

the first function of the electrochromic element is at least one of turn on/off and changing reflectivity, or

the first function of the display is at least one of turn on/off, zoom in/out, dimming brightness up/down, pan/tilt, contrast up/down and aspheric view on/off.

10. The rearview device of claim 1 , wherein the second layer is a reflective layer, and the first layer is a substrate.

11. The rearview device of claim 1 , wherein the function is executed without contact between the rearview element and the object.

12. A vehicle with at least one rearview device of claim 1 .