Control method of illumination imaging mirror

Abstract

The embodiment of the invention discloses a control method of an illumination imaging mirror, which comprises the following steps of: detecting in a set range of the outer side of a semi-transparent reflective part: if a user is detected, displaying a reflective mirror surface by the semi-transparent reflective part so as to provide a mirror surface function; if the user is not detected, the semi-transparent reflective part displays an image of the development layer so as to provide a development function; if the time that the user stays in the set range of the outer side of the semi-transparent reflecting part reaches the preset reflecting time, the semi-transparent reflecting part displays a reflecting mirror surface; and if the time of the user staying in the set range of the outer side of the semi-transparent reflecting part does not reach the preset reflecting time, the semi-transparent reflecting part displays the image of the development layer in an illumination mode or a self-luminous mode. According to the invention, a mirror surface function and an imaging function can be respectively provided, and intelligent control can be realized.

Description

Technical Field

[0001] The invention relates to the technical field of bathrooms, and in particular to a control method for an illumination imaging mirror. Background Art

[0002] In modern home life, bathroom mirrors are indispensable daily necessities. Traditional bathroom mirrors mainly rely on the principle of mirror reflection to achieve basic dressing and self-examination functions. However, with the advancement of technology and the diversification of consumer demand, traditional bathroom mirrors cannot meet people's pursuit of intelligent and multifunctional products. In addition to the traditional mirror function, some high-end bathroom mirrors can also realize the display function, that is, displaying preset patterns in the mirror, etc., but the control method and function of this kind of bathroom mirror are relatively simple, usually only manually switching between the mirror function and the display function, and the function can only display time, automatically adjust brightness, etc., which cannot meet consumers' demand for diversified functions and intelligent control. Summary of the invention

[0003] In order to solve the technical problem that the existing bathroom mirror has simple functions and crude control, the embodiment of the present invention provides a control method for an illumination imaging mirror, which can provide a mirror function and an imaging function respectively and can realize intelligent control.

[0004] In order to solve the above technical problems, an embodiment of the present invention provides a control method for an illumination imaging mirror, wherein the illumination imaging mirror comprises a semi-transparent reflective member and an imaging layer, and comprises the following steps:

[0005] Detection within a set range outside the semi-transparent reflective element:

[0006] If a user is detected, the semi-transparent reflective member displays a reflective mirror surface to provide a mirror function;

[0007] If no user is detected, the semi-transmissive reflective member displays the image of the imaging layer to provide an imaging function;

[0008] Wherein, the side of the semi-transparent reflective element closer to the user is the outer side.

[0009] For the improvement of the above solution, the step of detecting whether there is a user within the set range outside the semi-transparent reflective element further includes:

[0010] If the user stays within the set range outside the semi-transparent reflective element for a preset reflection time, the semi-transparent reflective element displays a reflective mirror surface;

[0011] If the time during which the user stays within the set range outside the semi-transmissive reflective element does not reach the preset reflection time, the semi-transmissive reflective element displays the image of the imaging layer.

[0012] For the improvement of the above scheme, the image developing layer is arranged on the inner side of the semi-transparent reflective member, and a light source for image developing is also arranged on the inner side of the semi-transparent reflective member, and when a preset light irradiates the outer side of the semi-transparent reflective member, the light emitted by the light source can pass through the image developing layer and be emitted from the inner side to the outer side of the semi-transparent reflective member, and the light transmission effect formed can transmit the image of the image developing layer to the outer side of the semi-transparent reflective member;

[0013] When no preset light illuminates the outer side of the semi-transparent reflective element, the outer side of the semi-transparent reflective element can reflect the light to form a mirror reflection effect;

[0014] Wherein, the side of the semi-transparent reflective element away from the user is the inner side.

[0015] The improvement of the above scheme also includes the following steps:

[0016] After the semi-transparent reflective element displays the reflective mirror surface, if the user leaves the outer set range of the semi-transparent reflective element and the time of leaving exceeds the set display time, the image of the display layer is displayed;

[0017] After the semi-transparent reflective element displays the reflective mirror surface, if the user leaves the outer set range of the semi-transparent reflective element, but the user is detected again in the outer set range of the semi-transparent reflective element within the display set time, the reflective mirror surface continues to be displayed.

[0018] For the improvement of the above solution, the step of displaying the image of the imaging layer includes:

[0019] When the light intensity outside the semi-transparent reflective element is greater than the normal preset light intensity, the image of the imaging layer is displayed in an illumination mode;

[0020] When the light intensity outside the semi-transmissive reflective element is less than the normal preset light intensity, the image of the imaging layer is displayed in a self-luminous mode.

[0021] For the improvement of the above solution, the illumination imaging mirror further includes an imaging light source, and the displaying of the image of the imaging layer in the illumination mode includes the following steps:

[0022] The imaging light source is turned on and irradiates the imaging layer and the semi-transparent reflective element, so that the semi-transparent reflective element displays a partial image or a full image of the imaging layer.

[0023] For the improvement of the above solution, in the illumination mode, the following steps are also included:

[0024] When the semi-transparent reflective member needs to display a reflective mirror surface, the imaging light source is turned off to make the semi-transparent reflective mirror display a reflective mirror surface.

[0025] For the improvement of the above solution, the illumination imaging mirror further includes a luminous layer, and the step of displaying the image of the imaging layer in a self-luminous mode includes the following steps:

[0026] The imaging light source is turned off, and the luminous layer illuminates the imaging layer and the semi-transparent reflective element, so that the semi-transparent reflective element displays the image of the imaging layer.

[0027] For the improvement of the above solution, in the self-luminous mode, the following steps are also included:

[0028] If it is detected that the light intensity outside the semi-transparent reflective element is greater than the preset dark light intensity, the semi-transparent reflective element displays a reflective mirror surface.

[0029] For the improvement of the above solution, the step of displaying a partial image or the entire image of the imaging layer by the semi-transparent reflective member includes:

[0030] A plurality of imaging light sources are turned on simultaneously to display the entire image of the imaging layer; or

[0031] The imaging light sources are turned on in turn according to a preset turning-on sequence, so as to respectively display the partial images of the imaging layer according to a preset display sequence.

[0032] For the improvement of the above solution, the illumination display mirror further includes an ambient light source, and the step of the semi-transparent reflective member displaying a reflective mirror surface further includes:

[0033] When the semi-transparent reflective element needs to display a reflective mirror surface, the ambient light source is turned on to illuminate the use area of ​​the semi-transparent reflective element;

[0034] When the semi-transmissive reflective element needs to display the image of the imaging layer, the ambient light source is turned off.

[0035] Implementing the embodiments of the present invention has the following beneficial effects:

[0036] The control method of the illumination display mirror of the embodiment of the present invention includes the following steps: according to whether there is a user within the set range outside the semi-transparent reflective element, it can be judged whether to use the mirror function or the display function. When a user is detected, it means that the user needs to do makeup and look in the mirror. At this time, the semi-transparent reflective element displays a reflective mirror surface to provide a mirror function. When no user is detected, it means that no one needs to use the mirror function. The semi-transparent reflective element displays the image of the display layer to provide the display function, thereby avoiding direct reflection from the mirror when the user does not need to use the mirror function. Moreover, by displaying the pattern in the display layer, a quiet and comfortable atmosphere is created in the indoor space, thereby realizing the mirror function and the display function. Moreover, the function is controlled by detecting whether a user enters the detection range, without manual switching, and intelligent control can be realized to meet the consumer's demand for functional diversification and intelligent control. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 2 is a schematic structural diagram of an illumination imaging mirror according to an embodiment of the present invention;

[0038] Figure 2 It is a flow chart of a method for controlling an illumination imaging mirror according to an embodiment of the present invention. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention.

[0040] See also Figure 1 and Figure 2 According to an embodiment of the present invention, a method for controlling an illumination imaging mirror is provided, comprising the following steps:

[0041] Detection within the set range outside the semi-transparent reflective element 1:

[0042] S11, if a user is detected, the semi-transparent reflective element 1 displays a reflective mirror surface to provide a mirror function;

[0043] S12, if no user is detected, the semi-transmissive reflective member 1 displays the image of the imaging layer 2 to provide an imaging function;

[0044] The side of the semi-transparent reflective element 1 closer to the user is the outer side.

[0045] In an embodiment of the present invention, the semi-transparent reflective element 1 is a coated glass element, which can realize reflective and light-transmitting functions under different lighting environments. The side of the semi-transparent reflective element 1 close to the user is the outer side, and the side of the semi-transparent reflective element 1 away from the user is the inner side. The imaging layer 2 is arranged on the inner side of the semi-transparent reflective element 11, and the inner side of the semi-transparent reflective element 11 is also provided with a light source for imaging. When strong light is irradiated on the outer side of the semi-transparent reflective element 1, the brightness of the outer side of the semi-transparent reflective element 1 is greater than the brightness of the inner side of the semi-transparent reflective element 1. At this time, the light emitted by the light source can pass through the imaging layer 2 and be emitted from the inner side to the outer side of the semi-transparent reflective element 1, and the light-transmitting effect formed can transmit the image of the imaging layer 2 to the outer side of the semi-transparent reflective element; and when no specific light is irradiated on the outer side of the semi-transparent reflective element 1, the outer side of the semi-transparent reflective element 1 can reflect light to form a mirror reflection effect.

[0046] The imaging layer 2 is a customized imaging pattern, which can be formed on the inner side of the semi-transparent reflective element 1 by UV printing, laser inkjet printing, inkjet printing, etc. When realizing the imaging function, the brightness of the inner side of the semi-transparent reflective element 1 is controlled to be greater than the brightness of the outer side, so that the pattern of the imaging layer 2 on the inner side of the semi-transparent reflective element 1 can be displayed. When realizing the mirror reflection function, the brightness of the inner side of the semi-transparent reflective element 1 is controlled to be less than the brightness of the outer side, so that the outer side of the semi-transparent reflective element 1 can show a mirror reflection effect, thereby realizing the mirror reflection function.

[0047] The detection instrument for detecting whether there is a user can be a radar, infrared, visual detector or other components, which can detect whether there is a target object within a certain range. In the embodiment of the present invention, the target object is a user who needs to use the illumination imaging mirror.

[0048] The beneficial effects of the embodiments of the present invention are at least:

[0049] The control method of the light display mirror of the embodiment of the present invention comprises the following steps: according to whether there is a user within the set range outside the semi-transparent reflective element 1, it can be judged whether the mirror function or the display function is used. When a user is detected, it means that the user needs to do makeup and look in the mirror. At this time, the semi-transparent reflective element 1 displays a reflective mirror surface to provide a mirror function. When no user is detected, it means that no one needs to use the mirror function. The semi-transparent reflective element 1 displays the image of the display layer 2 to provide the display function, thereby avoiding direct reflection of the mirror when the user does not need to use the mirror function. Moreover, by displaying the pattern in the display layer 2, a quiet and comfortable atmosphere is created in the indoor space, thereby realizing the mirror function and the display function. Moreover, the function is controlled by detecting whether a user enters the detection range, without manual switching, and intelligent control can be realized, meeting the consumer's demand for functional diversification and intelligent control.

[0050] Specifically, the step of detecting whether there is a user within the set range outside the semi-transparent reflective element 1 also includes:

[0051] S13, if the user stays within the set range outside the semi-transparent reflective element 1 for a preset reflection time, the semi-transparent reflective element 1 displays a reflective mirror surface;

[0052] S14 , if the time that the user stays in the set range outside the semi-transmissive reflective element 1 does not reach the preset reflection time, the semi-transmissive reflective element 1 displays the image of the imaging layer 2 .

[0053] In order to avoid misjudgment, reduce the frequency of function switching, and improve the intelligence of control, based on judging whether a user has entered the detection area, a time condition for the user to enter the detection area is added, and when the time the user stays in the outer set range of the semi-transparent reflective element 1 reaches the preset reflection time, the function switching is started. In this way, when the user walks in the outer set range of the semi-transparent reflective element 1, the illumination display mirror can be prevented from repeatedly switching between the mirror function and the display function, which can save energy, reduce the probability of damage, and improve the user experience.

[0054] Furthermore, when the user has finished using the mirror function, the control method of the illumination imaging mirror further includes the following steps:

[0055] S15, after the semi-transparent reflective element 1 displays the reflective mirror surface, if the user leaves from the outer set range of the semi-transparent reflective element 1, and the time of leaving exceeds the set display time, then display the image of the display layer 2;

[0056] S16, after the semi-transparent reflective element 1 displays the reflective mirror surface, if the user leaves the outer set range of the semi-transparent reflective element 1, but the user is detected again within the outer set range of the semi-transparent reflective element 1 within the display set time, the reflective mirror surface continues to be displayed.

[0057] Similarly, in order to ensure that the semi-transparent reflective element 1 can provide the user with a stable and lasting mirror reflection effect and avoid frequent switching of functions, when the user leaves the detection range, it is necessary to further determine whether the user has temporarily left or left by mistake, or has completed the work of dressing and looking in the mirror. In the embodiment of the present invention, the cumulative time of the user leaving the detection range is used as the judgment basis. When the time when the user leaves the outer set range of the semi-transparent reflective element 1, but the time of leaving does not exceed the display setting time, but returns to the outer set range of the semi-transparent reflective element 1 again within the display setting time and is detected, it is determined that the user still needs to continue to use the mirror function, so the light display mirror continues to display the reflective mirror. When the time when the user leaves the outer set range of the semi-transparent reflective element 1 exceeds the display setting time, it is determined that the user has completed the work of dressing and looking in the mirror, and will not use the mirror function again in a short time, and the image of the display layer 2 is displayed at this time. This function allows the user to leave the outer set range of the semi-transparent reflective element 1 for a period of time and then return to this range to continue to do makeup and look in the mirror. While reducing misjudgment and lowering the frequency of function switching, it improves the flexibility of using the light display mirror, which is beneficial for the user to perform other tasks while using the mirror function.

[0058] There are at least two ways to realize the imaging function, and the step of displaying the image of the imaging layer 2 includes:

[0059] When the light intensity outside the semi-transparent reflective element 1 is greater than the normal preset light intensity, the image of the imaging layer 2 is displayed in the illumination mode;

[0060] When the light intensity outside the semi-transmissive reflective element 1 is less than the normal preset light intensity, the image of the imaging layer 2 is displayed in a self-luminous mode.

[0061] When the light intensity outside the semi-transparent reflective element 1 is greater than the normal preset light intensity, that is, when the light outside the semi-transparent reflective element 1 is strong, in order to realize the imaging function, a light source needs to be arranged inside the semi-transparent reflective element 1 to display the image of the imaging layer 2 in the illumination mode. When the light intensity outside the semi-transparent reflective element 1 is less than the normal preset light intensity, that is, when the light outside the semi-transparent reflective element 1 is weak, the image of the imaging layer 2 can be displayed in the self-luminous mode.

[0062] Specifically, the illumination imaging mirror further comprises an imaging light source 3, and the imaging light source 3 is arranged on the inner side of the semi-transparent reflective element 1. The displaying of the image of the imaging layer 2 in the illumination mode comprises the following steps:

[0063] The imaging light source 3 is turned on and irradiates the imaging layer 2 and the semi-transmissive reflective element 1 , so that the semi-transmissive reflective element 1 displays a partial image or a full image of the imaging layer 2 .

[0064] After the imaging light source 3 is turned on, the illumination brightness inside the semi-transparent reflective element 1 can be greater than the illumination brightness outside the semi-transparent reflective element 1, thereby stimulating the semi-transparent reflective element 1 to display the image in the imaging layer 2, thereby forming an imaging effect. In this process, the light emitted by the imaging light source 3 is directly emitted to the imaging layer 2 or is emitted into the imaging layer 2 by refraction, reflection, etc., and is transmitted from the semi-transparent reflective element 1, so that the semi-transparent reflective element 1 displays the pattern of the imaging layer 2.

[0065] In the illumination mode, the following steps are also included:

[0066] When the semi-transparent reflective element 1 needs to display a reflective mirror surface, the imaging light source 3 is turned off so that the semi-transparent reflective element 1 displays a reflective mirror surface.

[0067] When the imaging light source 3 is turned off, since no light passes through the imaging layer 2 and the semi-transparent reflective element 1, the brightness inside the semi-transparent reflective element 1 is lower than the brightness outside the semi-transparent reflective element 1, and the semi-transparent reflective element 1 can display a mirror reflection effect and realize a mirror function.

[0068] In other embodiments, the illumination imaging mirror further includes a luminous layer 4, and the step of displaying the image of the imaging layer 2 in a self-luminous mode includes the following steps:

[0069] The imaging light source 3 is turned off, and the luminous layer 4 irradiates the imaging layer 2 and the semi-transparent reflective element 1 , so that the semi-transparent reflective element 1 displays the image of the imaging layer 2 .

[0070] When the light intensity outside the semi-transparent reflective element 1 is less than the normal preset light intensity, usually at night or in a dark indoor environment, the light intensity outside the semi-transparent reflective element 1 is weak, and the luminous layer 4 can self-luminesce to form a light source after absorbing sunlight or the light energy of the imaging light source 3, and the light emitted by the luminous layer 4 passes through the imaging layer 2 and the semi-transparent reflective element 1 to achieve the imaging function. The self-luminescence of the luminous layer 4 can save energy, and the imaging function can be achieved even in the case of power failure, thereby ensuring the user experience.

[0071] In the self-luminous mode, the following steps are also included:

[0072] If it is detected that the light intensity outside the semi-transparent reflective element 1 is greater than the preset dark light intensity, the semi-transparent reflective element 1 displays a reflective mirror surface.

[0073] In the self-luminous mode, if the mirror function needs to be used, it is only necessary to turn on the indoor light source or an emergency light source such as a flashlight. When the light intensity on the outside of the semi-transparent reflective element 1 is greater than the preset light intensity of the dark light, the outside of the semi-transparent reflective element 1 can display a mirror to ensure that the user can use the mirror function normally in the self-luminous mode at night.

[0074] In order to further enrich the functions of the light display mirror, during the display, a static image can be displayed, or a dynamic effect can be achieved by controlling the display light source 3. Specifically, the step of the semi-transparent reflective member 1 displaying a partial image or a full image of the display layer 2 includes:

[0075] The plurality of imaging light sources 3 are turned on simultaneously to display the entire image of the imaging layer 2; or

[0076] The imaging light sources 3 are turned on in turn according to a preset turn-on sequence to respectively display partial images of the imaging layer 2 according to a preset display sequence.

[0077] There are multiple imaging light sources 3 distributed in multiple areas of the illumination imaging mirror. When multiple imaging light sources 3 are turned on at the same time, the image of the entire area of ​​the imaging layer 2 will be fully displayed, and the static effect of the pattern can be displayed. When multiple imaging light sources 3 are turned on in turn according to the preset opening sequence, the images of the corresponding areas in the imaging layer 2 will be displayed in sequence according to the preset display sequence, thereby forming a dynamic display effect.

[0078] The illumination display mirror further comprises an ambient light source 5, and the step of displaying a reflective mirror surface of the semi-transparent reflective element 1 further comprises:

[0079] When the semi-transparent reflective element 1 needs to display a reflective mirror surface, the ambient light source 5 is turned on to illuminate the use area of ​​the semi-transparent reflective element 1;

[0080] When the semi-transmissive reflective element 1 needs to display the image of the imaging layer 2, the ambient light source 5 is turned off.

[0081] In order to facilitate the use of the mirror function, the ambient light source 5 is turned on to increase the brightness of the outer side of the semi-transparent reflective element 1 and improve the mirror reflection effect, so as to facilitate the user to look in the mirror when dressing. When the display function needs to be switched, the ambient light source 5 is turned off to make the brightness of the outer side of the semi-transparent reflective element 1 quickly lower than the normal preset light intensity to avoid affecting the display function.

[0082] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A method for controlling an illumination imaging mirror, wherein the illumination imaging mirror comprises a semi-transparent reflective member and an imaging layer, characterized in that: The following steps are involved: Detection within a set range outside the semi-transparent reflective element: If a user is detected, the semi-transparent reflective member displays a reflective mirror surface to provide a mirror function; If no user is detected, the semi-transmissive reflective member displays the image of the imaging layer to provide an imaging function; Wherein, the side of the semi-transparent reflective element closer to the user is the outer side.

2. The control method of the illumination imaging mirror according to claim 1, characterized in that: The step of detecting whether there is a user within the outer set range of the semi-transparent reflective element further comprises: If the user stays within the set range outside the semi-transparent reflective element for a preset reflection time, the semi-transparent reflective element displays a reflective mirror surface; If the time during which the user stays within the set range outside the semi-transmissive reflective element does not reach the preset reflection time, the semi-transmissive reflective element displays the image of the imaging layer.

3. The control method of the illumination imaging mirror according to claim 1, characterized in that: The image developing layer is arranged on the inner side of the semi-transparent reflective element, and a light source for image developing is also arranged on the inner side of the semi-transparent reflective element. When a preset light is irradiated on the outer side of the semi-transparent reflective element, the light emitted by the light source can pass through the image developing layer and be emitted from the inner side to the outer side of the semi-transparent reflective element, so that the light transmission effect formed can transmit the image of the image developing layer to the outer side of the semi-transparent reflective element. When no preset light illuminates the outer side of the semi-transparent reflective element, the outer side of the semi-transparent reflective element can reflect the light to form a mirror reflection effect; Wherein, the side of the semi-transparent reflective element away from the user is the inner side.

4. The control method of the illumination imaging mirror according to claim 1, characterized in that: The following steps are also included: After the semi-transparent reflective element displays the reflective mirror surface, if the user leaves the outer set range of the semi-transparent reflective element and the time of leaving exceeds the set display time, the image of the display layer is displayed; After the semi-transparent reflective element displays the reflective mirror surface, if the user leaves the outer set range of the semi-transparent reflective element, but the user is detected again in the outer set range of the semi-transparent reflective element within the display set time, the reflective mirror surface continues to be displayed.

5. The control method of the illumination imaging mirror according to claim 4, characterized in that: The step of displaying the image of the imaging layer comprises: When the light intensity outside the semi-transparent reflective element is greater than the normal preset light intensity, the image of the imaging layer is displayed in an illumination mode; When the light intensity outside the semi-transmissive reflective element is less than the normal preset light intensity, the image of the imaging layer is displayed in a self-luminous mode.

6. The control method of the illumination imaging mirror according to claim 4, wherein the illumination imaging mirror further comprises an imaging light source, characterized in that: Displaying the image of the imaging layer in an illumination mode comprises the following steps: The imaging light source is turned on and irradiates the imaging layer and the semi-transparent reflective element, so that the semi-transparent reflective element displays a partial image or a full image of the imaging layer.

7. The control method of the illumination imaging mirror according to claim 6, characterized in that: In the illumination mode, the following steps are also included: When the semi-transparent reflective member needs to display a reflective mirror surface, the imaging light source is turned off to make the semi-transparent reflective mirror display a reflective mirror surface.

8. The control method of the illumination imaging mirror according to claim 6, wherein the illumination imaging mirror further comprises a luminous layer, characterized in that: The method of displaying the image of the imaging layer in a self-luminous mode comprises the following steps: The imaging light source is turned off, and the luminous layer illuminates the imaging layer and the semi-transparent reflective element, so that the semi-transparent reflective element displays the image of the imaging layer.

9. The control method of the illumination imaging mirror according to claim 8, characterized in that: In the self-luminous mode, the following steps are also included: If it is detected that the light intensity outside the semi-transparent reflective element is greater than the preset dark light intensity, the semi-transparent reflective element displays a reflective mirror surface.

10. The control method of the illumination imaging mirror according to claim 6, characterized in that: The step of displaying a partial image or a whole image of the imaging layer by the semi-transparent reflective member comprises: A plurality of imaging light sources are turned on simultaneously to display the entire image of the imaging layer; or The imaging light sources are turned on in turn according to a preset turning-on sequence, so as to respectively display the partial images of the imaging layer according to a preset display sequence.

11. The control method of the illumination imaging mirror according to claim 1, wherein the illumination imaging mirror further comprises an ambient light source, characterized in that: The step of displaying a reflective mirror surface by the semi-transparent reflective member further comprises: When the semi-transparent reflective element needs to display a reflective mirror surface, the ambient light source is turned on to illuminate the use area of ​​the semi-transparent reflective element; When the semi-transmissive reflective element needs to display the image of the imaging layer, the ambient light source is turned off.

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