KR102285336B1 - Light guide device and makeup mirror provided therewith - Google Patents

Abstract

The light guide device 10 includes a first light incident end face 100 for receiving a first light beam, a second light incident end face 102 for receiving a second light beam, a light outgoing face 104 and the light outgoing face. opposingly disposed light reflective surfaces (106); The light reflection surface 106 is configured to reflect the first light beam and the second light beam, and the reflected first light beam and the second light beam are emitted from the light exit surface 104 . In addition, the present invention provides a makeup mirror using the light guide device (10). In the light guiding device 10 of the present invention and a makeup mirror having the same, light emitting bodies are respectively disposed at both ends of the light guide body 110 so that the light rays generated by the light emitting bodies at both ends face each other at different ends of the light guide body 110 . By transmitting, the purpose of improving the uniformity of the emitted light is achieved.

Description

Light guide device and makeup mirror provided therewith

The present invention relates to a light guide device and a makeup mirror having the same.

A makeup mirror is a must for every family. If you look at a mirror while applying makeup, depending on the angle at which the mirror needs to be reflected, the local brightness is not enough, so it is difficult to see well. This may cause inconvenience to users.

In view of this, there is a need to provide a light guide device capable of reducing uneven output of light rays and a makeup mirror having the light guide device.

A light guide device comprising:

a first light emitting member, a second light emitting member, and a light guide body;

The light guide body includes a first light incident end face for receiving the first light beam, a second light incident end face for receiving the second light beam, a light output surface, and a light reflection surface disposed to face the light output surface, ;

The light reflection surface is configured to reflect the first light beam and the second light beam, and the reflected first light beam and the second light beam are emitted from the light exit surface.

Further, in the light guide device, a plurality of scattering dots are disposed on the light reflection surface.

In addition, in the light guide device, the shape of the plurality of scattering dots is at least one selected from a circular shape and a wedge shape.

Further, in the light guide device, the density of the plurality of scattering dots has an inverse relationship with the distance from the light emitting member.

Further, in the light guide device, the first light emitting member is disposed on the first light incident end face, and the second light emitting member is disposed on the second light incident end face; the first light emitting member includes at least one selected from warm light or cool light light emitting devices having a single color temperature, and the second light emitting member includes at least one selected from warm light or cool light light emitting devices having a single color temperature; In addition, the first light emitting member includes at least one warm light emitting device having a double color temperature, and the second light emitting member includes at least one warm light emitting device having a double color temperature.

In addition, the light guide device further includes a first control circuit for controlling the first light emitting member to emit a first light beam; The first control circuit includes a low-pass filter circuit and a driving chip, wherein the low-pass filter circuit is configured to filter a pulse signal to output a linear control signal, and the driving chip adjusts the luminance of the first light emitting member linearly according to the linear control signal.

In addition, the light guide device further includes a second control circuit for controlling the second light emitting member to emit a second light beam; The second control circuit includes a low-pass filter circuit and a driving chip, wherein the low-pass filter circuit is configured to filter a pulse signal to output a linear control signal, and the driving chip according to the linear control signal The luminance of the second light emitting member is adjusted linearly.

Further, in the light guide device, the driving chip includes a voltage output pin and a feedback pin, the voltage output pin is connected to the anode of the light emitting diode, and the cathode of the light emitting diode is grounded through the first resistor; The feedback pin is connected to the cathode of the light emitting diode through a second resistor, receives the pulse signal through a third resistor and a fourth resistor connected in series, and the node of the third resistor and the fourth resistor is a capacitor grounded through

Further, in the light guide device, the light guide body includes the light reflection surface, a light exit surface disposed opposite to the light reflection surface, an inner surface, and an outer surface disposed opposite to the inner surface; The light reflection surface, the light exit surface, the inner surface and the outer surface form a wedge-shaped cross section.

Further, in the light guide device, the light guide device further includes a light reflecting device, wherein the light reflecting device is disposed adjacent to a light reflecting surface of the light guide device.

Further, in the light guide device, the light exit surface of the light guide device has a convex arc shape or a concave arc shape.

A makeup mirror, comprising: a mirror surface; and a light guide device disposed along a circumferential direction of the mirror surface, wherein the light guide device includes a first light emitting member, a second light emitting member and a light guide body; the light guide body includes a first light incident end face for receiving a first light beam, a second light incident end face for receiving a second light beam, a light exit surface, and a light reflection surface disposed opposite to the light exit surface; The light reflective surface is configured to reflect the first light ray and the second light ray, and the reflected first light ray and the second light ray are emitted from the light exit surface.

In addition, the makeup mirror further includes a soft light device, the soft light device includes a first accommodating part and a second accommodating part, the first accommodating part accommodating the mirror surface, and the light emitting part of the light guide device accommodated in the second receptacle.

In addition, the makeup mirror further includes a support member and a heat dissipation device, wherein the support member includes a fixing part protruding upward, and the first incident section corresponding to the first incident section is formed on the outer surface of the fixing section adjacent to the first incident section. a first light emitting member is disposed, and a second light emitting member corresponding to the second incident end face is disposed on an outer surface of the fixing part adjacent to the second incident end face; The heat dissipation device is disposed between the light emitting member and the corresponding incident end face.

Further, in the makeup mirror, the support member is an aluminum substrate, and the material of the heat dissipation device is a material having low thermal resistance.

The light guiding device and the makeup mirror having the light guiding device have luminous bodies disposed at both ends of the light guiding body, respectively, so that the light rays generated by the luminous bodies at both ends are transmitted to face each other at different ends of the light guiding body, thereby improving the uniformity of the emitted light realize the purpose of In addition, since the light reflection device is installed adjacent to the light reflection surface of the light guide body, and the soft light device is installed on the light exit surface, it is advantageous to improve the uniformity of the emitted light.

1 is a view showing a preferred embodiment of a light guide device according to the present invention.
FIG. 2 is a diagram illustrating a connection relationship between a light emitting sub-unit and a light guide body in FIG. 1 .
Fig. 3 is a diagram showing the structure of a more preferred embodiment of the light guide device in Fig. 1 and a first cross-section thereof;
Fig. 4 is a view showing a more preferred embodiment of the light guide device in Fig. 1 and a second cross section thereof;
FIG. 5 is a diagram illustrating an IES curve of the light guide device in FIG. 1 .
FIG. 6 is a diagram showing a preferred embodiment of the control circuit of the control circuit board in FIG. 1 .
7 is a view showing the structure of a more preferred embodiment of the makeup mirror according to the present invention.
FIG. 8 is a view showing a partially enlarged view after assembling FIG. 7 .

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and specific examples to help the understanding of the above objects, features, and advantages of the present invention. It should be understood that embodiments and technical features of the present invention may be combined without conflict.

In the following, specific details are described in order to fully understand the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the claims of the present invention.

Unless otherwise defined below, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific contents for carrying out the present invention, and is not intended to limit the present invention.

Referring to FIG. 1 , as a more preferred embodiment of the light guide device 10 of the present invention, a light guide body 110 , a first light emitting member 130 positioned at a first end of the light guide body 110 , and the light guide body 110 . and a second light emitting member 140 positioned at a second end of the body 110 , wherein the first end of the first light guide body 110 faces the second end. The first light emitting member 130 is configured to emit one or more first light rays, the second light emitting member 140 is configured to emit one or more second light rays, and the first light emitting member 130 and the The light emitted by the second light emitting member 140 may be transmitted within the light guide body 110 .

In this embodiment, the light guide body 110 has a first light incident end face 100 located at a first end, a second light incident end face 102 located at a second end, a light exit surface 104, and a light exit surface. and a light reflective surface 106 disposed opposite to 104 .

The light reflective surface 106 is configured to reflect a first light beam and/or a second light beam. In this embodiment, some of the first light beam and/or the second light beam may be reflected by the light reflection surface 106 and then exit from the light exit surface 104; A light beam of another portion of the first light beam and/or the second light beam may be transmitted along a transmission path in which the light guide body 110 is located. In this embodiment, the switch of the transmission path in which the light guide body 110 is located may be formed in a straight line or a non-straight line. For example, the first light beam may be transmitted from a first direction to a second direction along a transmission path in which the light guide body 110 is located; The second light beam may be transmitted in the first direction along a transmission path in which the light guide body 110 is located in the second direction.

In this embodiment, the first light incident end face 100 and the second light incident end face 102 may be installed to face each other, so that the first light incident end face 100 positioned at the first end 100 of the light guide body 110 is provided. The first light ray generated by the first light emitting member 130 and the second light beam generated by the second light emitting member 140 located at the second end 102 of the light guide body 110 are A light source having a more uniform light can be formed by mixing and overlapping on a transmission path in which is , emitted from the light exit surface 104 in the light guide body 110 .

Here, the first light emitting member 130 may include at least one selected from a warm light or a cool light light emitting device having a single color temperature; The second light emitting member 140 may include at least one selected from warm light and cool light light emitting devices having a single color temperature.

Preferably, when the first light emitting member 130 and the second light emitting member 140 each include a warm light light emitting device having a single color temperature, the light guide device 10 may form a light source of a double warm light. there is. When the first light emitting member 130 and the second light emitting member 140 include a cool light light emitting device having a single color temperature, the light guide device 10 may form a double cool light light source. Also, in another embodiment, each of the first light emitting member 130 and the second light emitting member 140 may include two warm light light emitting devices. In order to meet the demand for light sources in different conditions and situations, the number of light emitting devices included in the first light emitting member 130 and the second light emitting member 140 may be increased or decreased according to actual conditions.

In another embodiment, the first light emitting member 130 may include one or more double color temperature warm light emitting devices, and the second light emitting member 140 may include one or more double color temperature warm light emitting devices. and may be used in combination according to the light source in different conditions and situations.

Referring to FIG. 2 , each of the first light emitting member 130 and the second light emitting member 140 may include a lamp bead and a reflective cup. For example, the first light emitting member 130 may include a lamp bead 131 and a reflective cup 133 . The lamp bead 131 is configured to emit one or more of the first light beams, the reflective cup 133 having an approximately inverted cone shape, the inverted cone reflective cup having an opening and a bottom. The lamp bead 131 is disposed on the bottom of the reflective cup 133 , and the reflective cup 133 is configured to reflect one or more first rays generated by the lamp bead 131 , the lamp The first light beam generated by the bead 131 is incident as much as possible into the light guide body 110 through the opening and the first incident end face 100 , thereby improving the utilization rate of the light source. Preferably, at least one of the first rays generated by the lamp bead 131 is totally reflected within the reflective cup 133 so that the first light beam generated by the lamp bead 131 is transmitted to the light guide body ( 110) can all be entered.

In another embodiment, a first lens (not shown) may be further disposed between the first light emitting member 130 and the first incident end face 100 , and the second light emitting member 140 and the second A second lens (not shown) may be further disposed between the incident end face 102 , and the first lens and the second lens diffuse the incident light beam, thereby expanding the angle of the incident light beam to the light guide body 110 . Make the distribution of the rays incident into the interior more uniform. Preferably, after the first light ray generated by the first light emitting member 130 is diffused through the first lens, a light beam having a larger incident angle may be generated, and similarly, the second light emitting member 140 After the second ray generated by ) is diffused through the second lens, a ray having a larger incident angle may be generated.

The first light emitting member 130 and the second light emitting member 140 output a high amount of luminous flux from the light emitting chip per unit area through LED (light emitting diode) packaging (single color temperature/double color temperature chip), and drive larger Since it has a current density, high color development and high luminance can be realized at the same time. Of course, the color and height of the first light emitting member 130 and the second light emitting member 140 may be controlled by the control circuit board (shown in FIG. 7 ) 40 .

Referring back to FIG. 1 , preferably, a plurality of scattering dots 108 are disposed on the light reflective surface 106 . The shape of the scattering dots is at least one selected from a circular shape and a wedge shape. Here, the circular scattering dots have isotropic scattering properties, and the wedge-shaped scattering dots can appropriately compensate for chromatic dispersion. Accordingly, a different number of circular scattering dots or wedge-shaped scattering dots may be disposed on the light reflection surface 106 according to actual conditions. In another embodiment, the shape of the scattering dots 108 is not limited to a circular shape or a wedge shape, and may be set to a shape such as an oval or the like according to actual situations.

In this embodiment, by using a symmetrical double light source (including the first light emitting member 130 and the second light emitting member 140), the attenuation curves of the two light sources satisfy the characteristic of symmetrically attenuating, Uniform light can be output through the overlapping effect of light sources.

The attenuation curve of a single light source is as follows.

P(x) = P0e-cx

where C is the density of the scattering dots. When factors such as processing and processing are taken into account, a uniform density can be used.

The maximum density of scattering dots is as follows.

C _max = lg(1-P _C /P ₀ )/x _max

where P _C is the light transmission loss of the material relative to the material, and x _max is the length of the light guide plate.

In principle, the size of the scattering dots is preferably formed as small as possible. Considering the difficulty of processing, it is generally about 0.01 to 0.007 mm.

In an embodiment, the density of the scattering dots 108 distributed on the light reflective surface 106 may be changed according to a distance from a light source. Preferably, the density of the scattering dots 108 distributed on the light reflection surface 106 may exhibit an inverse relationship to the distance from the light source. For example, the closer the light emitting member is, the greater the amount of light flux is, the smaller the distribution density of the scattering dots 108 is formed; As the distance from the light emitting member increases, the amount of luminous flux decreases, so that the distribution density of the scattering dots 108 can be appropriately increased. Accordingly, the light emitted from the light guide device 10 becomes more uniform, and the effect due to the distance from the light emitting member may be reduced.

Referring to FIG. 3 together, the light guide body 110 further includes an inner surface 112 and an outer surface 114 . The inner surface 112 , the outer surface 114 , the light reflection surface 106 and the light exit surface 104 of the light guide body 110 together constitute the transmission path. The light guide body 110 is formed in a substantially annular shape, and the light rays emitted from the first light emitting member 130 and the second light emitting member 140 may be transmitted along the annular transmission path. In another embodiment, a reflective material is coated on the inner side 112 and the outer side 114 so that the first and/or second light beams are better emitted along the transmission path, thereby making the first Reducing the ray and/or the second ray from being emitted from the inner surface 112 and the outer surface 114 so that the first and/or second light beam is emitted by the light exit end 104 as much as possible. can do.

In another embodiment, a light reflecting device 70 (shown in FIG. 7 ) may be further disposed adjacently to the light reflecting surface 106 of the light guide body 110 . The light reflection device 70 increases reflection intensity with respect to the first and second light rays, which is advantageous in reducing light loss and improving light utilization.

In this embodiment, the cross section of the light guide body 110 is generally wedge-shaped. Here, the length of the side on which the inner surface 112 is located in the cross-section is greater than the length of the side on which the outer surface 114 is located in the cross-section, so that light is not dazzled when it is diffused to the outside.

In this embodiment, the lamp bead 131 may be disposed adjacent to the light reflection surface 106 of the light guide device 10 . In another embodiment, the lamp bead 131 may be disposed adjacent to a central axis of a cross-section of the light guide body 110 or a narrow side of a wedge-shaped cross-section. For example, when the length of the side on which the inner surface 112 is located in the cross-section is greater than the length of the side on which the outer surface 114 is located in the cross-section, the inner surface and the outer surface of the light guide body 110 , the transmission path (the transmission path of the outer surface is larger than the transmission path of the inner surface), by placing the lamp bead 131 adjacent to the narrow side of the wedge-shaped cross section, the amount of luminous flux on the longer transmission path is reduced by the shorter transmission path. It becomes larger than the amount of light flux of the image, so it is advantageous to output uniform light.

Referring to FIG. 4 together, FIG. 4 is a view showing a preferred embodiment of another cross-section of the light guide body 110 . A cross section of the light guide body 110 is generally wedge-shaped. Here, the length of the side on which the inner surface 112 is located in the cross-section is formed to be smaller than the length of the side on which the outer surface 114 is located in the cross-section, so that the light guide path of the outer surface 114 becomes longer and more light is emitted. It should be formed to be thicker so as to be emitted, and the light guide path of the inner surface 112 should be shortened and formed thinner so that the light emitted from the exit surface 104 is more uniform.

Also, the light exit surface 104 on the light guide body 110 may have a convex arc shape or a concave arc shape. The emitted light beam is spatially distributed according to a specific light distribution curve, such as a batwing-shaped IES curve (shown in Fig. 5), so that in a range of 10 to 50 cm from the mirror surface (typical makeup range), the light beam is It is advantageous for reducing the Unified Glare Rating while making it more evenly distributed on the face of

6, 7 and 8 together, a preferred embodiment of the makeup mirror of the present invention is a mirror surface 30, a soft light device for accommodating the mirror surface 30 and the light guide device 10 ( 20), a control circuit board 40 for controlling the color temperature and luminance of the light guide device 10, a support device 60 for supporting the control circuit board 40, and heat dissipation of the control circuit board 40 It includes a heat dissipation device 50, and the light reflection device 70 for doing so.

The soft light device 20 includes a first accommodating space 202 for accommodating the mirror surface 30 and a second accommodating space 204 for accommodating the light guide device 10 . In this embodiment, in the soft light device 20 , the mirror surface 30 is fastened to the first accommodation space 202 through a fastening part, and the mirror surface 30 is connected to the first accommodation space 202 . to be fixed within.

In this embodiment, the soft light device 20 includes a soft light unit (not shown), and the soft light unit is disposed along the circumferential direction of the first accommodating space 202 to the second accommodating space 204 . ) to form When the light guide device 10 is accommodated in the second accommodating space 204 , the light beam emitted from the light exit surface 104 of the light guide device 10 passes through the soft light unit and exits the light guide device 10 . By performing soft light processing on the emitted light, the light beam emitted from the light guide device 10 becomes uniform and soft, which is advantageous in reducing the glare index. In this embodiment, the soft light device 20 may be an atomized corroded transparent acrylic; In another embodiment, a color powder that does not affect color development may be added between the soft light device 20 and the light guide device 10 , or between the light guide device 10 and the soft light device 20 . Astigmatism paper can be added.

The light reflection device 70 is disposed adjacent to the light reflection surface 106 of the light guide body 110 to improve the reflection intensity of the first light beam and the second light beam.

The light guide device 10 has a generally annular shape and has an opening 200 forming the first incident end face 100 and the second incident end face 102 .

The support member 60 is for fixing the control circuit board 40 and the light reflection device 70 to the light guide device 10 and the soft light device 20 . In this embodiment, the number of the support member 60 may be two, and the support member 60 includes a fixing part 600 protruding upward, and a fixing part adjacent to the first incident end face 100 . Two first light emitting members 130 facing the first incident end face 102 are disposed on the outer surface of 600 , and the outer surface of the fixing part 600 adjacent to the second incident end face 102 . Since the two second light emitting members 140 facing the first incident end face 102 are disposed on the first light emitting member 130 and the second light emitting member 140, light emitted from the first light emitting member 140 and the second light emitting member 140, respectively The light guide body 110 may be incident through the first incident end face 100 and the second incident end face 102 .

In this embodiment, the control circuit board 40 is for adjusting information such as luminance and color temperature of the first light emitting member 130 and the second light emitting member 140 .

In the present embodiment, the first light beam emitted from the first light emitting member 130 may be controlled by a first control circuit, and the second light beam emitted from the second light emitting member 140 may be controlled by a second control circuit. can be adjusted by The first control circuit and the second control circuit may be the same, and in this embodiment, the first control circuit will be described as an example.

The first control circuit may include a driving chip U1 , a filter circuit, a peripheral circuit, and the first light emitting member 130 . In this embodiment, the first light emitting member 130 includes two light emitting diodes, the two light emitting diodes being D2 and D3, respectively.

The driving chip U1 may adjust the luminance by adjusting the voltage and/or current output to the first light emitting member 130 .

The driving chip U1 may include a voltage input pin VIN, a voltage output pin SW, a detection pin OV, a ground pin GND, a feedback pin FB, and a control pin CTRL.

The voltage input pin VIN is connected to a power supply 5V, and the power supply 5V is grounded through a capacitor C1.

The control pin CTRL receives a switching signal through the resistor R1 to control the luminance of the first light emitting member in a first manner. In addition, the control pin CTRL is grounded through a pull-down resistor R2. The driving chip U1 may adjust the luminance of the first light emitting member 130 through a switching signal received by the control pin CTRL. In this embodiment, the switch signal may be a high-low level signal. when the switch signal is a high-level signal, the driving chip U1 increases the voltage or current of the power output pin SW, thereby improving the luminance of the first light emitting member 130; When the switching signal is a low-level signal, the driving chip U1 reduces the power or circuit output by the power output pin SW, thereby reducing the luminance of the second light emitting member 130 . can

The voltage output pin SW is connected to the voltage input pin VIN through the inductor L1, and is also connected to the anode of the diode D1. The cathode of the diode D1 is grounded through a series of light emitting diodes D2 and D3 and a resistor R6. The cathode of the diode D1 is grounded through the capacitor C2 while being connected to the detection pin OV. The ground pin GND is grounded.

The feedback pin FB is grounded through a capacitor C3 and connected to the nodes of the light emitting diode D3 and the resistor R6 through a resistor R5. In addition, the feedback pin FB receives a control signal through a resistor R4 and a resistor R3 connected in series, and a node of the resistor R4 and the resistor R3 is grounded through a capacitor C4.

In the present embodiment, the driving chip U1 may control the luminance of the first light emitting member by using the pulse signal in the second method.

Here, the control signal may be a pulse signal, and the resistor R4 and the capacitor C4 may constitute the low-pass filter circuit. The feedback pin FB of the driving chip U1 is configured to receive a linear control signal, and the low-pass filter circuit performs low-pass filtering on the control signal. When receiving the linear control signal, the driving chip U1 can linearly control the first light beam emitted from the first light emitting member 130, so that the output is more stable, thereby ensuring the energy utilization rate Under the premise that the light strobe is lowered.

In this embodiment, the support member 60 may be an aluminum substrate, and the support member 60 may also perform heat dissipation with respect to the heat generated by the light emitting member.

The heat dissipation device 50 includes two heat dissipation sheets 503 . The two heat dissipation sheets 503 are respectively disposed on side surfaces of the two support members 60 . Specifically, the heat dissipation sheet 503 may include a contact surface 505 extending downward. The contact surface 505 of the heat dissipation sheet 503 may contact a side surface of the support member 60 , and when the heat dissipation sheet 503 contacts the support member 60 , the heat dissipation sheet 503 . is disposed adjacent to the light emitting member and positioned under the light guiding device to dissipate heat generated by the light emitting member. The contact surface 505 of the heat dissipation sheet 503 serves to expand the heat dissipation area. In this embodiment, the heat dissipation device 50 further includes two thermally conductive silicon 505 . Each of the thermally conductive silicon 505 is disposed between the corresponding heat dissipation sheet 503 and the support member 60, and transmits the heat of the light emitting member to dissipate the heat. In another embodiment, the heat dissipation device 50 may include only the heat dissipation sheet 503 , and the heat dissipation sheet 503 may implement heat dissipation by directly contacting the corresponding support member 60 . In this embodiment, by using a heat dissipation method that combines an aluminum substrate, a heat dissipation sheet, and thermally conductive silicon, the amount of heat generated by the light emitting device is dissipated as quickly as possible, and both the processing difficulty and the heat dissipation area are reduced by using the following structure. take full care of The material of the heat dissipation sheet may be a material having low heat resistance, such as aluminum or copper.

The light guiding device and the makeup mirror having the same are provided with light emitting bodies disposed at both ends of the light guiding body, respectively, to transmit the light rays emitted from the light emitting bodies at both ends to face each other at different ends of the light guide body, thereby improving the uniformity of the emitted light. achieve the purpose In addition, the light reflection device is disposed adjacent to the light reflection surface of the light guide body, and the soft light device is provided on the light exit surface, which is advantageous in improving the uniformity of the emitted light.

It is apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit and technical characteristics of the present invention. Accordingly, the embodiments are to be considered as illustrative and not restrictive, the scope of the present invention being not limited by the foregoing description, but defined by the appended claims, and thus the present invention is to be construed as having its equivalents in the appended claims. It is intended to cover all modifications within the meaning and scope of water. Any reference signs within the claims shall not be construed as limiting the claims. It is also clear that the word “comprising” does not exclude other units or steps, and the singular does not exclude a plurality. A plurality of units or systems described in the system claims may be implemented by the same unit or system in software or hardware.

Although the above-described embodiment has been described by way of a limited specific embodiment, the present invention is not limited to the above embodiment. Various modifications and variations are possible without departing from the spirit of the present invention by those skilled in the art to which the present invention pertains. Therefore, the scope of the present invention should not be limited to the described embodiments, and should be defined by the claims described below as well as the claims and equivalents.

Claims (15)

a first light emitting member, a second light emitting member and a light guide body;
the light guide body includes a first light incident end face for receiving a first light beam, a second light incident end face for receiving a second light beam, a light output surface, and a light reflection surface disposed opposite to the light output surface;
a first control circuit for controlling the first light emitting member to emit a first light beam;
the light reflection surface is configured to reflect the first light beam and the second light beam, and the reflected first light beam and the second light beam are emitted from the light exit surface;
The first control circuit includes a low-pass filter circuit and a driving chip, wherein the low-pass filter circuit is configured to filter a pulse signal to output a linear control signal, and the driving chip according to the linear control signal Linearly adjusting the brightness of the first light emitting member,
The driving chip includes a voltage output pin and a feedback pin,
The voltage output pin is connected to the anode of the light emitting diode, and the cathode of the light emitting diode is grounded through a first resistor,
The feedback pin is connected to the cathode of the light emitting diode through a second resistor, receives the pulse signal through a third resistor and a fourth resistor connected in series, and the node of the third resistor and the fourth resistor is a capacitor which is grounded through the light guide device. According to claim 1,
wherein a plurality of scattering dots are disposed on the light reflective surface. 3. The method of claim 2,
The shape of the plurality of scattering dots is at least one selected from a circular shape and a wedge shape, the light guide device. 3. The method of claim 2,
The light guiding device of claim 1, wherein the density of the plurality of scattering dots has an inverse relationship with a distance from the light emitting member. According to claim 1,
the first light emitting member is disposed on the first light incident end face, and the second light emitting member is disposed on the second light incident end face;
the first light emitting member includes at least one selected from warm light or cool light light emitting devices having a single color temperature, and the second light emitting member includes at least one selected from warm light or cool light light emitting devices having a single color temperature; Alternatively, the first light emitting member includes at least one warm light emitting device having a double color temperature, and the second light emitting member includes at least one warm light emitting device having a double color temperature. delete According to claim 1,
a second control circuit for controlling the second light emitting member to emit a second light beam;
The second control circuit includes a low-pass filter circuit and a driving chip, wherein the low-pass filter circuit is configured to filter a pulse signal to output a linear control signal, and the driving chip according to the linear control signal The light guiding device of claim 1 , which linearly adjusts the luminance of the second light emitting member. delete The method of claim 1,
The light guide body includes the light reflective surface, a light emitting surface disposed to face the light reflecting surface, an inner surface, and an outer surface disposed to face the inner surface,
wherein the light reflecting surface, the light exiting surface, the inner surface and the outer surface form a wedge-shaped cross-section. The method of claim 1,
The light guide device further comprises a light reflection device,
and the light reflecting device is disposed adjacent to the light reflecting surface of the light guide device. The method of claim 1,
and the light exit surface of the light guide device is formed in a convex arc shape or a concave arc shape. As a makeup mirror,
A makeup mirror comprising a mirror surface and the light guide device according to any one of claims 1 to 5, 7, and 9 to 11 arranged along the circumferential direction of the mirror surface. 13. The method of claim 12,
further comprising a soft light device;
wherein the soft light device comprises a first receptacle and a second receptacle, wherein the first receptacle is configured to receive the mirror surface, and the light exit portion of the light guide device is configured to be received in a second receptacle. makeup mirror. 14. The method of claim 13,
It further includes a support member and a heat dissipation device,
The support member includes a fixing part protruding upward, and a first light emitting member corresponding to the first light incident end face is disposed on an outer surface of the fixing part adjacent to the first light incident end face, and the second light incident end face disposing a second light emitting member corresponding to the second light incident cross-section on the outer surface of the fixing part adjacent to;
The heat dissipation device will be disposed between the light emitting member and the corresponding incident end face, a makeup mirror. 15. The method of claim 14,
The support member is an aluminum substrate, and the material of the heat dissipation device is a material having low thermal resistance, a makeup mirror.

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