A light-emitting module, cabinet door and mirror cabinet

Abstract

This utility model relates to the field of bathroom lighting technology and discloses a light-emitting module, cabinet door, and mirror cabinet. The light-emitting module includes a control module and a first reflector, a first light source, a second reflector, a second light source, a beam shaping module, and a reflector arranged sequentially along the optical axis inside the door panel. The first beam angle formed by the first beam emitted by the first light source and the first reflector is greater than the second beam angle formed by the second beam emitted by the second light source and the second reflector. The reflector is tilted along the optical axis and positioned relative to the light-emitting hole. This utility model can prevent the light spot illuminating the user's face from changing too much at different distances, and the brightness will not change significantly due to different degrees of diffusion, thereby improving the lighting effect.

Description

Technical Field

[0001] This utility model relates to the field of bathroom lighting technology, and in particular to a light-emitting module, cabinet door and mirror cabinet. Background Technology

[0002] Currently, due to the fast pace of life, people often prefer to do their quick makeup in the bathroom to save time. However, the lighting in bathrooms is often insufficient, leading to a poor user experience. To address this issue of inadequate lighting during bathroom makeup application, the mainstream industry solution is to install mirrors and lights on bathroom vanities. This can be achieved by installing horizontal strip lights on the top of the vanity, vertical strip lights on both sides, or light strips on the cabinet doors. However, the large luminous area of ​​strip lights can compromise the integrity of the mirror.

[0003] The proposed solution places the light-emitting module inside the cabinet door and emits light through the light-emitting hole. However, this solution has a single lighting angle. When the distance between the user and the cabinet door is different, the light beam spreads at different distances, resulting in different sizes of light spots in the illuminated area, i.e., on the user's face, leading to poor lighting effect. Utility Model Content

[0004] In view of this, the present invention provides a light-emitting module, a cabinet door, and a mirror cabinet to solve or partially solve the technical problem of poor lighting effect in existing solutions.

[0005] The technical solution proposed by this utility model is as follows: The first aspect of this utility model provides a light-emitting module applied to a cabinet door. The cabinet door includes a door panel and a mirror disposed on the door panel. The mirror is provided with a light-emitting hole that extends through the thickness direction of the cabinet door. The light-emitting module includes a first reflector, a first light source, a second reflector, a second light source, a beam shaping module, and a reflector disposed inside the door panel and arranged sequentially along the optical axis. The first beam angle formed by the first beam emitted by the first light source and the first reflector is greater than the second beam angle formed by the second beam emitted by the second light source and the second reflector. The reflector is tilted relative to the optical axis and to the light exit aperture.

[0006] In some optional embodiments, the first reflector and the second reflector are respectively a first reflector cup and a second reflector cup with an elliptical longitudinal section, the first light source is disposed at the elliptical focal point of the first reflector cup away from the beam shaping module, and the second light source is disposed at the elliptical focal point of the second reflector cup away from the beam shaping module. The elliptical equations of the first reflector and the second reflector satisfy the following:

[0007]

[0008]

[0009] In the formula, c is an elliptic coordinate system. Let be the length of the semi-major axis of the ellipse of the first reflector. Let the length of the minor semi-axis of the ellipse of the first reflector be [length]. The length of the semi-major axis of the ellipse of the second reflector. The length of the minor semi-axis of the ellipse of the second reflector. The diameter of the light outlet of the first reflector cup. The diameter of the light outlet of the second reflector.

[0010] In some alternative embodiments, the beam shaping module includes a light-transmitting plate and an imaging lens group. The light-transmitting plate is provided with a light-transmitting hole, through which the first beam and the second beam enter the imaging lens group. The imaging lens group is used to converge the first beam and the second beam and then project them onto the reflector.

[0011] In some alternative implementations, the positional relationship between any two adjacent reflectors satisfies:

[0012] In the formula, The distance is the elliptical focal point of the first reflector away from the beam shaping module and the elliptical focal point of the second reflector away from the beam shaping module.

[0013] In some alternative embodiments, the light-transmitting hole is elliptical in shape, and the angle between the major axis of the ellipse and the thickness direction of the cabinet door is... satisfy:

[0014] In the formula, The distance between the illuminated area and the mirror surface. This is the height difference between the center point of the lighting area and the light-emitting aperture.

[0015] In some alternative embodiments, the imaging lens group includes at least two positive lenses, and the effective focal length of the imaging lens group is... satisfy:

[0016] In the formula, The entrance pupil diameter of the imaging lens group. The diameter of the light spot in the illuminated area.

[0017] In some alternative embodiments, the angle between the normal of the reflector and the width direction of the cabinet door is 45°, and the angle between the normal of the reflector and the height direction of the cabinet door is... satisfy: .

[0018] The second aspect of this utility model provides a cabinet door, including a door panel and a mirror disposed on the door panel. The mirror has a light-emitting hole that extends through the thickness of the cabinet door, and the door panel has a light-emitting module as described in any of the first aspects of this utility model.

[0019] The third aspect of this utility model provides a mirror cabinet, including cabinet doors as described in any of the second aspects of this utility model.

[0020] As can be seen from the above technical solutions, this utility model has the following advantages: This utility model provides a light-emitting module, cabinet door, and mirror cabinet. Through a first reflector, a first light source, a second reflector, a second light source, a beam shaping module, and a reflector, it can output two illumination beams with different beam angles. By selecting to turn on the first light source or the second light source, it can provide illumination beams with different light emission angles. This ensures that the light spot illuminating the user's face does not change too much at different distances, and the brightness does not change significantly due to different degrees of diffusion, thereby improving the lighting effect. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the light-emitting module in an embodiment of this utility model; Figure 2 This is a schematic diagram of the optical path of the light-emitting module in an embodiment of this utility model; Figure 3 This is a three-dimensional coordinate diagram of the cabinet door in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of the light-transmitting plate in an embodiment of this utility model; Figure 5 This is a schematic diagram of the angle of the reflector in an embodiment of this utility model; Figure 6 This is a side view of the lighting area in an embodiment of the present invention; Figure 7 This is a front view of the lighting area in an embodiment of this utility model; Figure 8 This is a schematic diagram of the cabinet door structure in an embodiment of this utility model; Figure 9This is a schematic diagram of the mirror cabinet in an embodiment of the present utility model.

[0023] Figure label: 101 First reflector; 102 First light source; 103 Second reflector; 104 Second light source; 105 Light-transmitting plate; 106 Imaging lens group; 107 Reflector; 1061 First lens; 1062 Second lens; 1063 Third lens; 1051 Light-transmitting hole; 201 Door panel; 202 Mirror; 203 Light-emitting hole; 204 Cabinet. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components; or a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The terms "parallel" and "equal" include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). The specific meaning of the above terms in this application will be understood by a person skilled in the art based on the specific circumstances.

[0026] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] like Figure 1As shown, this utility model embodiment provides a light-emitting module applied to a cabinet door. The cabinet door includes a door panel 201 and a mirror 202 disposed on the door panel 201. The mirror 202 is provided with a light-emitting hole 203 that extends through the thickness direction of the cabinet door. The light-emitting module includes a first reflector, a first light source 102, a second reflector, a second light source 104, a beam shaping module, and a reflector 107 disposed in the door panel 201 and arranged sequentially along the optical axis. The first beam angle formed by the first beam emitted by the first light source 102 and the first reflector is greater than the second beam angle formed by the second beam emitted by the second light source 104 and the second reflector. The reflector 107 is tilted to the optical axis and is positioned relative to the light exit hole 203.

[0028] Specifically, both the first light source 102 and the second light source 104 use LED lamp beads as light sources, and both include LED lamp beads with at least two color temperatures, with the lower color temperature being 2700K and the higher color temperature being 6500K. They can be driven to emit light in single color temperature and emit light in mixed color temperature, thereby realizing the change of light color temperature, which varies between 2700K and 6500K.

[0029] The inner surfaces of the first and second reflectors are provided with reflective layers or reflective films. The emitting surface of the first light source 102 faces the inner surface of the first reflector and is emitted after being reflected by the first reflector. The emitting surface of the second light source 104 faces the inner surface of the second reflector and is emitted after being reflected by the second reflector.

[0030] The inner surfaces of the first reflector and the second reflector are both arc-shaped. By adjusting the shape of the inner surfaces of the first reflector and the second reflector, the first beam angle of the first beam output from the first light source 102 to the beam shaping module is made greater than the second beam angle of the second beam output from the second light source 104 to the beam shaping module.

[0031] The beam shaping module can use optical devices such as apertures, convex lenses or concave lenses to shape and converge the input beam to the reflector 107.

[0032] The reflector 107 is tilted relative to the optical axis, which is parallel to the width direction of the cabinet door, i.e., the X-axis direction. For example... Figure 4 As shown, the height of the cabinet door is parallel to the Y-axis, and the thickness of the cabinet door is parallel to the Z-axis. Specifically, the light outlet 203 is located on the upper side of the mirror 202, the reflector 107 is at a certain angle to the X-axis to reflect the light beam propagating along the X-axis to be emitted along the Z-axis, and the reflector 107 is at a certain angle to the Y-axis to tilt the light beam downwards at a certain angle.

[0033] The projection of the reflector 107 along the thickness direction of the cabinet door falls at least partially within the light exit hole 203, so that the light beam is reflected and emitted through the light exit hole 203.

[0034] Since the door panel 201 is relatively thin, generally ≤16mm thick, that is, the thickness in the Z-axis direction is limited, and the total length of the light-emitting module is relatively long, much greater than 12mm, in order to place the light-emitting module in the cabinet door, a reflector 107 needs to be set to redirect the light. In this way, the light-emitting module can be placed in the limited cabinet door space. The optical elements can be arranged sequentially along the width direction of the cabinet door, that is, the X-axis direction, and embedded in the door panel 201.

[0035] The first light source 102 and the second light source 104 are respectively equipped with a first switch and a second switch. The first switch controls whether the first light source 102 is turned on, and the second switch controls whether the second light source 104 is turned on. Therefore, the user can adjust the emission angle of the output beam by turning on either the first light source 102 or the second light source 104. Specifically, when the real-time distance between the human body and the cabinet door is relatively far, the second light source 104 is turned on and the first light source 102 is turned off, resulting in a smaller beam angle. When the real-time distance between the human body and the cabinet door is relatively close, the first light source 102 is turned on and the second light source 104 is turned off, resulting in a larger beam angle.

[0036] A light-emitting module according to an embodiment of the present invention can output two illumination beams with different beam angles through a first reflector, a first light source 102, a second reflector, a second light source 104, a beam shaping module, and a reflector 107. By selecting to turn on the first light source 102 or the second light source 104, illumination beams with different emission angles can be provided, thereby ensuring that the light spot illuminating the user's face does not change too much at different distances, and the brightness does not change significantly due to different degrees of diffusion, thereby improving the illumination effect.

[0037] In some embodiments, the first reflector and the second reflector are respectively a first reflector cup 101 and a second reflector cup 103 with an elliptical longitudinal section. The first light source 102 is disposed on the elliptical focal point of the first reflector cup 101 away from the beam shaping module, and the second light source 104 is disposed on the elliptical focal point of the second reflector cup 103 away from the beam shaping module.

[0038] Specifically, such as Figure 2 As shown, the first reflector 101, the first light source 102, the second reflector 103, and the second light source 104 are arranged sequentially along the optical axis.

[0039] The two elliptical foci of the first reflector 101 and the two elliptical foci of the second reflector 103 are both located on the optical axis. The four foci are, sequentially, focal point 1, focal point 2, focal point 3, and focal point 4 along the optical axis. The two foci of the first reflector 101 are focal point 1 and focal point 4. A first light source 102 is located near focal point 1, and its light emission direction is directed towards the reflective surface of the first reflector 101. After reflection, the light converges at the other focal point of the first reflector 101, namely focal point 4. After passing through focal point 4, the light diverges, and its beam angle is denoted as the first beam angle. The second reflector 103 has two focal points, focal point 2 and focal point 3. A second light source 104 is located at focal point 2, and its light emission direction is directed toward the reflective surface of the second reflector 103. After reflection, the light converges at the other focal point of the second reflector 103, namely focal point 3. The light beam is emitted after passing through focal point 3, and its beam angle is denoted as the second beam angle. ,in, .

[0040] To achieve different beam angles, the elliptic equations of the first reflector 101 and the second reflector 103 must satisfy:

[0041]

[0042]

[0043] The length of the semi-major axis of the ellipse of the first reflector cup 101. The length of the minor semi-axis of the ellipse of the first reflector cup 101. The length of the semi-major axis of the ellipse of the second reflector cup 103. The length of the minor semi-axis of the ellipse of the second reflector 103. The diameter of the light outlet of the first reflector 101 is [missing information]. The diameter of the light outlet of the second reflector cup 103.

[0044] Furthermore, since the light source is set at the focal point of the corresponding reflector, and several reflectors are set along the optical axis, the positional relationship of the reflectors needs to be defined in order not to affect the light emitted from the previous light source and the reflectors.

[0045] In order not to affect the light emitted from the previous light source and the reflector, the positional relationship between the first reflector 101 and the second reflector 103 satisfies the following:

[0046] In the formula, The distance between the elliptical focal point of the first reflector 101 away from the beam shaping module and the elliptical focal point of the second reflector 103 away from the beam shaping module is the distance between focal point 1 and focal point 2.

[0047] In some embodiments, the beam shaping module includes a light-transmitting plate 105 and an imaging lens group 106. The light-transmitting plate 105 is provided with a light-transmitting hole 1051. The first beam and the second beam enter the imaging lens group 106 through the light-transmitting hole 1051. The imaging lens group 106 is used to converge the first beam and the second beam and then emit them to the reflector 107.

[0048] Specifically, such as Figure 3 and Figure 4 As shown, the light-transmitting hole 1051 is elliptical in shape, and the angle between the major axis of the ellipse and the thickness direction of the cabinet door, i.e., the Z-axis, is... satisfy:

[0049] In the formula, The distance between the illuminated area and the mirror surface. This is the height difference between the center point of the illuminated area and the light-emitting aperture 203. Generally, The range is between 300mm and 500mm. The range is between 300mm and 500mm. The range is between 340mm and 400mm.

[0050] To ensure that the light spot in the XY coordinate plane of the illuminated area is circular, the light spot before reflecting mirror 107 must be elliptical; otherwise, it cannot become circular after reflection. Generally, for ordinary... and The value of , the included angle The value range is from 34° to 53°, and preferably, the included angle is... The value is 45°.

[0051] Specifically, since the light rays after passing through mirror 107 exit at a certain angle to the Z-axis, and the Z-axis forms a 90° angle with the X-axis, the major axis of the ellipse of the light aperture 1051 is twice the minor axis; and since the optical axis after passing through mirror 107 has a certain angle with the Z-axis, when and When they are equal, for example, both are 350mm, the included angle is... It is 45°, when they are not equal, such as when When, the included angle With an angle of 38.6°, the light spot in the illumination area after passing through the reflector 107 is nearly circular, which meets the needs of facial illumination.

[0052] In some embodiments, the imaging lens group 106 includes at least two positive lenses. In one example, the imaging lens group 106 includes a first lens 1061, a second lens 1062, and a third lens 1063, wherein the first lens 1061 and the second lens 1062 are both meniscus lenses, and the second lens 1062 is a biconvex lens.

[0053] The effective focal length of the imaging lens group 106 satisfies:

[0054] In the formula, The effective focal length of the imaging lens group 106, The entrance pupil diameter is the diameter of the imaging lens group 106. The distance between the illuminated area and the mirror surface. The height difference between the center point of the lighting area and the light-emitting aperture 203. The diameter of the light spot in the illuminated area.

[0055] Because the cabinet door is relatively thin, the diameter of all the lenses is limited, thus... Limited. If If the light spot is too small, the diameter of the light spot will be very large, and the brightness will be reduced. If the light spot is too large, the diameter of the light spot will be very small, and the brightness will be increased, but the diameter of the light spot in the illuminated area will be smaller, and the irradiated area will be smaller.

[0056] when Only when the above formula is satisfied can a reasonable effective focal length be designed within a limited thickness. The value range is 10mm-15mm. This focal length allows for a relatively small thickness while also considering the size of the light spot. It is related to the light cone angle and is determined by limiting... The light cone angle is adjustable.

[0057] By comprehensively considering factors such as the entrance pupil diameter of the imaging lens group 106, the distance between the illumination area and the mirror surface, the height difference between the center point of the illumination area and the light exit aperture 203, and the light spot diameter of the illumination area, the effective focal length of the imaging lens group 106 can be accurately calculated according to the actual illumination requirements, thereby optimizing the design of the imaging lens group 106, enabling the light beam to form a suitable light spot in the illumination area, and improving the uniformity and accuracy of the illumination.

[0058] Furthermore, the maximum light emission angle of the light-emitting module (Maximum in the X direction) is:

[0059] Specifically, since the thickness of the mirror cabinet door panel 201 is ≤16mm, and considering the thickness of the outer shell (2mm) and the reserved thickness of the door panel 201 (2mm), the maximum effective size of the lens in the imaging lens group 106 should be ≤12mm, and the entrance pupil diameter of the imaging lens group 106 should be... ,but ≤12mm. The range is between 300mm and 500mm.

[0060] In some alternative implementations, combined with Figure 5 , Figure 6 and Figure 7 As shown, the angle between the normal of the reflector 107 and the width direction of the cabinet door is 45°, that is, the angle between the normal of the reflector 107 and the height direction of the cabinet door, i.e., the Y-axis direction. satisfy:

[0061] The optical axis after reflection by the reflector is at 90° to the optical axis before reflection. Therefore, the normal of the reflector 107 is located at the exact midpoint between the light rays before and after reflection, that is, at 45° to the width direction of the cabinet door.

[0062] The angle between the optical axis and the Y-axis after reflection by the mirror satisfies the following relationship. Generally speaking, for the general and The value of , the included angle The value range is from 65.3° to 72.5°. Combined with the aforementioned elliptical light-transmitting aperture 1051, the light spot in the illumination area after passing through the reflector 107 is close to a circle, which meets the needs of face illumination.

[0063] This utility model embodiment also provides a cabinet door, such as Figure 8 As shown, the cabinet door includes a door panel 201 and a mirror 202 disposed on the door panel 201. The mirror 202 has a light-emitting hole 203 extending through the thickness direction of the cabinet door. The door panel 201 contains a light-emitting module as described in any of the above embodiments of this utility model. The mirror 202 is adhered to and covers the door panel 201, and the light emitted by the light-emitting module is emitted through the light-emitting hole 203 on the mirror 202.

[0064] This utility model embodiment also provides a mirror cabinet, which includes cabinet doors as described in the above embodiment. Mirror cabinets are typically used in bathrooms, toilets, and similar locations. Figure 9 As shown, the mirror cabinet also includes a cabinet body 204, and the cabinet door is connected to the cabinet body 204 by hinges.

[0065] This embodiment of the invention switches between the first light source 102 and the second light source 104 based on the real-time distance, so that the light spot illuminating the user's face does not change too much at different distances, thus improving the lighting effect.

[0066] Although the exemplary embodiments and their advantages have been described in detail, those skilled in the art can make various changes, substitutions and modifications to these embodiments without departing from the spirit and scope of protection of this utility model, and such modifications and variations all fall within the scope defined by the present invention.

Claims

1. A light-emitting module applied to a cabinet door, the cabinet door comprising a door panel and a mirror disposed on the door panel, the mirror having a light-emitting hole extending along the thickness direction of the cabinet door, characterized in that, The light-emitting module includes a first reflector, a first light source, a second reflector, a second light source, a beam shaping module, and a reflector, which are arranged sequentially along the optical axis inside the door panel. The first beam angle formed by the first beam emitted by the first light source and the first reflector is greater than the second beam angle formed by the second beam emitted by the second light source and the second reflector. The reflector is tilted about the optical axis and is positioned relative to the light-emitting aperture.

2. The light-emitting module according to claim 1, characterized in that, The first reflector and the second reflector are respectively a first reflector cup and a second reflector cup with an elliptical longitudinal section. The first light source is disposed at the elliptical focal point of the first reflector cup away from the beam shaping module, and the second light source is disposed at the elliptical focal point of the second reflector cup away from the beam shaping module. The elliptical equations of the first reflector and the second reflector satisfy the following: In the formula, c is an elliptic coordinate system. The length of the semi-major axis of the ellipse of the first reflector cup. The length of the minor semi-axis of the ellipse of the first reflector. The length of the semi-major axis of the ellipse of the second reflector. The length of the minor semi-axis of the ellipse of the second reflector. The diameter of the light outlet of the first reflector cup is [missing information]. The diameter of the light outlet of the second reflector cup is denoted as .

3. The light-emitting module according to claim 2, characterized in that, The positional relationship between any two adjacent reflectors satisfies: In the formula, The distance is the elliptical focal point of the first reflector away from the beam shaping module and the elliptical focal point of the second reflector away from the beam shaping module.

4. The light-emitting module according to claim 1, characterized in that, The beam shaping module includes a light-transmitting plate and an imaging lens group. The light-transmitting plate is provided with a light-transmitting hole. The first beam and the second beam enter the imaging lens group through the light-transmitting hole. The imaging lens group is used to converge the first beam and the second beam and then emit them onto the reflector.

5. The light-emitting module according to claim 4, characterized in that, The light-transmitting hole is elliptical in shape, and the angle between the major axis of the ellipse and the thickness direction of the cabinet door is... satisfy: In the formula, The distance between the illuminated area and the mirror surface. The height difference between the center point of the illumination area and the light-emitting aperture.

6. The light-emitting module according to claim 5, characterized in that, The imaging lens group includes at least two positive lenses, and the effective focal length of the imaging lens group is... satisfy: In the formula, The entrance pupil diameter of the imaging lens group is [missing information]. The diameter of the light spot in the illuminated area.

7. The light-emitting module according to claim 6, characterized in that, The angle between the normal of the reflector and the width direction of the cabinet door is 45°, and the angle between the normal of the reflector and the height direction of the cabinet door is... satisfy: 。 8. A cabinet door, characterized in that, The cabinet includes a door panel and a mirror disposed on the door panel. The mirror has a light-emitting hole that extends through the thickness of the cabinet door. The door panel is provided with a light-emitting module as described in any one of claims 1 to 7.

9. A mirror cabinet, characterized in that, Includes the cabinet door as described in claim 8.

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