WO2013179483A1 - 照明付きミラー装置及びその照明制御方法 - Google Patents
照明付きミラー装置及びその照明制御方法 Download PDFInfo
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- WO2013179483A1 WO2013179483A1 PCT/JP2012/064288 JP2012064288W WO2013179483A1 WO 2013179483 A1 WO2013179483 A1 WO 2013179483A1 JP 2012064288 W JP2012064288 W JP 2012064288W WO 2013179483 A1 WO2013179483 A1 WO 2013179483A1
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- mirror
- light emitting
- face
- light
- unit
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G1/00—Mirrors; Picture frames or the like, e.g. provided with heating, lighting or ventilating means
- A47G1/06—Picture frames
- A47G1/0616—Ornamental frames, e.g. with illumination, speakers or decorative features
- A47G1/0622—Ornamental frames, e.g. with illumination, speakers or decorative features with illumination
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G1/00—Mirrors; Picture frames or the like, e.g. provided with heating, lighting or ventilating means
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G1/00—Mirrors; Picture frames or the like, e.g. provided with heating, lighting or ventilating means
- A47G1/02—Mirrors used as equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
- B60Q3/252—Sun visors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/80—Circuits; Control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0471—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor detecting the proximity, the presence or the movement of an object or a person
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0004—Personal or domestic articles
- F21V33/004—Sanitary equipment, e.g. mirrors, showers, toilet seats or paper dispensers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/60—Circuit arrangements for operating LEDs comprising organic material, e.g. for operating organic light-emitting diodes [OLED] or polymer light-emitting diodes [PLED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G2200/00—Details not otherwise provided for in A47G
- A47G2200/08—Illumination
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/30—Lighting for domestic or personal use
- F21W2131/302—Lighting for domestic or personal use for mirrors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
- F21Y2115/15—Organic light-emitting diodes [OLED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Definitions
- the present invention relates to an illuminated mirror device and an illumination control method thereof.
- Patent Document 1 discloses an EL illumination built-in mirror in which an EL (Electro Luminescence) element is arranged in a frame shape around the mirror.
- EL Electro Luminescence
- Japanese Patent Application Laid-Open No. H10-228561 shows a view mirror in which a half mirror is provided adjacent to a mirror surface and a lighting fixture is attached to the back side thereof.
- each of the side mirrors located on the left and right sides of the center mirror is formed with a light-transmitting part without a silver film on the mirror body, and through the light-transmitting part on the back side of the mirror body.
- the mirror cabinet of Patent Document 3 includes a light emitting unit that irradiates the mirror surface through the light transmitting unit, and an angle adjusting actuator that adjusts an intersection angle between the mirror surface and the light emitting surface of the light emitting unit. A user located in front of the mirror is detected and the angle adjusting actuator is controlled so that the irradiation direction of the light emitting unit is directed to the detected user.
- the problem to be solved by the present invention is that the above-mentioned drawbacks are given as an example, and when the user tilts his / her face with respect to the mirror surface, the user appropriately gives illumination to the part of the face he / she wants to see. It is an object of the present invention to provide an illuminated mirror device and a control method thereof.
- An illuminated mirror device is an illuminated mirror device comprising: a mirror; a light emitting unit for illumination disposed in the vicinity of the mirror; and a driving unit that drives the light emitting unit.
- An illumination control method is an illumination control method for a mirror device with illumination, comprising: a mirror; a light emitting unit for illumination disposed in the vicinity of the mirror; and a driving unit that drives the light emitting unit.
- a detecting step for detecting a direction of the face of the person in front of the mirror with respect to the mirror, and a light emission luminance of the light emitting surface of the light emitting unit in the driving unit in accordance with the direction of the face detected by the detecting step And a step of controlling the distribution.
- FIG. 4 It is an external view which shows the mirror apparatus with illumination of Example 1 of this invention. It is sectional drawing which shows the element structure of the organic electroluminescent panel used for the light emission part of the mirror apparatus of FIG. It is a top view which shows the surface of the mirror apparatus of FIG. It is a block diagram which shows the drive system of the light emission part of the mirror apparatus of FIG. 4 is a flowchart showing an operation of a control circuit of the drive system in FIG. 3. It is a figure which shows the relationship between the light emission state of the left side area and right side area
- the orientation of the face of the person in front of the mirror with respect to the mirror is detected, and the light emitting unit of the light emitting unit is detected according to the orientation of the face Since the light emission luminance distribution on the light emitting surface is controlled, when the user tilts his / her face with respect to the mirror, it is possible to appropriately give illumination to the part that the user wants to see, and the illumination light from the direction of tilting the face Can be prevented from entering the eyes of the user.
- FIG. 1 shows the appearance of the illuminated mirror device 10 according to the first embodiment of the present invention.
- This illuminated mirror device 10 is a vanity mirror attached to the back side of the sun visor 11 of the vehicle.
- the sun visor 11 is rotatably supported on a ceiling 18 in the passenger compartment near the windshield 17, and the mirror device 10 is used by the user lowering the sun visor 11 and further opening the lid 12. It is.
- the mirror device 10 includes a mirror unit 13 (mirror), a light emitting unit 14, and an image sensor 15.
- the periphery of the quadrangular mirror part 13 is surrounded by a frame-like light emitting part 14.
- the image sensor 15 is arranged at the center of the upper part of the frame of the light emitting unit 14 and is a sensor for generating an image of a human face in front of the mirror surface of the mirror unit 13 as an image signal.
- the image sensor 15 is an image pickup element constituted by a photoelectric conversion element such as a CCD sensor or a CMOS sensor, and converts a subject image formed by the photographing optical system into an image signal as an electric signal.
- the light emitting unit 14 is composed of an organic EL panel.
- the organic EL panel has a structure in which a transparent electrode anode 22, an organic light emitting layer 23, a metal electrode cathode 24, an adhesive layer 25, and a protective sheet layer 26 are sequentially laminated on a transparent substrate 21.
- the anode 22, the organic light emitting layer 23, and the cathode 24 are organic EL elements, and a plurality of these organic EL elements are formed on the transparent substrate 21, although not shown.
- the light emitting unit 14 uses the anode 22 and the cathode 24 of a plurality of organic EL elements as drive terminals. Further, the light emitting unit 14 has two systems for the organic EL element (light source) in the left region 14L and the organic EL element (light source) in the right region 14R so that the light emission luminance distribution on the light emitting surface can be driven and controlled in the two regions on the left and right. A drive terminal is provided.
- the left region 14L is a portion on the left side of the line C (center line) that equally divides the light emitting surface of the light emitting unit 14 to the left and right
- the right region 14R has the light emitting surface of the light emitting unit 14 on the left and right. It is a portion on the right side of the line C to be equally divided.
- each part 21 to 26 of the organic EL panel are not particularly limited in the present invention.
- the driving means of the light emitting unit 14 includes a control circuit 31 and a driving circuit 32.
- the control circuit 31 constitutes detection means for detecting the orientation of the user's face together with the image sensor 15.
- the control circuit 31 includes, for example, a CPU, receives an output image signal from the image sensor 15, detects the face direction of the person according to the image signal of the person in front of the mirror surface of the mirror unit 13, and detects the face direction. A control signal is generated for the drive circuit 32 according to the result.
- the drive circuit 32 supplies drive currents individually between the two drive terminals of the light emitting unit 14 in accordance with a control signal supplied from the control circuit 31.
- the lid 12 covers the mirror surface of the mirror part 13 so as to be freely opened and closed.
- the lid 12 has a mechanism (not shown) for maintaining the open state.
- the lid interlocking switch 34 is an on / off switch that interlocks with the movement of the lid 12, and is off when the lid 12 is closed and is on when the lid 12 is open.
- the lid interlocking switch 34 is on, the power supply voltage is supplied to the control circuit 31 and the drive circuit 32. Further, the image sensor 15 also operates when the power supply voltage is supplied from the control circuit 31 when the lid interlocking switch 34 is turned on.
- the lid interlocking switch 34 is turned on, and the control circuit 31, the drive circuit 32, and the image sensor 15 are activated.
- the control circuit 31 first instructs the drive circuit 32 to drive uniform illumination (step S1).
- the drive circuit 32 supplies an equal drive current to the organic EL elements in the left region 14L and the right region 14R of the light emitting unit 14. Accordingly, the left region 14L and the right region 14R of the light emitting unit 14 emit light with the same luminance.
- the control circuit 31 reads the output image signal of the image sensor 15 (step S2), and performs face contour detection processing according to the image signal (step S3).
- the contour of a human face is detected from the edge in the image indicated by the image signal.
- the density of the left and right face parts within the face contour is detected (step S4).
- the density of the face parts is the area ratio of the area occupied by the face parts with clear outlines such as mouth, eyes, eyebrows, nose, etc. within the range of the left and right halves of the face outline, that is, the area density. At least one face part may be used for density determination.
- the density of the left and right halves of the face contour is determined (step S5).
- step S5 if the difference between the density of the left half and the density of the right half is within an allowable range, it is determined that the person's face is directly facing the mirror surface of the mirror unit 13.
- the difference between the density of the left half and the right half of the contour exceeds the allowable range and the density of the left half is higher than the density of the right half, the person's face is the mirror face of the mirror unit 13. If the right half density is higher than the left half density, the person's face is determined to be leftward from the mirror facing direction of the mirror unit 13.
- the left side (right side from the person) of the face outline from the video is occupied by the cheek (right cheek of the person), and the main face is on the right side of the face outline. Since the facial parts such as the mouth, eyes, eyebrows, and nose are located on the right side, the density of the right half is high, and conversely, when the face of the person is directed to the right of the specular direction, the right side of the face outline (from the person This is because the left half is occupied by the cheek (the left cheek of the person) and the density of the left half of the contour is increased because the facial parts are mainly located on the left side of the facial contour.
- Steps S2 to S5 correspond to a determination unit that detects the contour of the face of the person from the image signal and determines the orientation of the face of the person with respect to the mirror in accordance with the area density of the region of the face part in the contour.
- the control circuit 31 instructs the drive circuit 32 to perform uniform illumination driving (step S6). This is the same as step S1.
- the control circuit 31 instructs the drive circuit 32 to drive left illumination (step S7).
- the drive circuit 32 increases the drive current to the organic EL elements in the left region 14L of the light emitting section 14 more than the drive current of the organic EL elements in the right region 14R, and these drive currents are increased to the left region 14L. And supplied to the organic EL elements in the right region 14R.
- the control circuit 31 instructs the drive circuit 32 to drive the right illumination (step S8).
- the drive circuit 32 increases the drive current to the organic EL elements in the right region 14R of the light emitting unit 14 more than the drive current of the organic EL elements in the left region 14L, and these drive currents are increased to the left region 14L. And supplied to the organic EL elements in the right region 14R.
- the control circuit 31 After executing any of steps S6 to S8, the control circuit 31 returns to step S2 and repeats the above operation. Note that the repetition timing may be immediately after execution of any of steps S6 to S8, or may be every predetermined period (for example, 1 second).
- both the left region 14L and the right region 14R of the light emitting unit 14 emit light with uniform luminance, that is, with uniform luminance distribution.
- the emission luminance of the left region 14L of the light emitting unit 14 is as shown in FIG.
- the luminance of the right region 14R is larger than that of the right region 14R, and the face of the user A is facing left with respect to the mirror surface of the mirror unit 13 as shown in FIG.
- the light emission luminance of the right region 14R of the light emitting unit 14 is larger than the light emission luminance of the left region 14L. Therefore, since the light emission luminance distribution of the light emitting surface is controlled so that the brightness of illumination on a part of the face that the user A wants to see on the mirror surface is increased, the part can be easily seen by the user A who is tilted. Become. In particular, even if the size is small like a vanity mirror and the light emitting area of the light emitting part is small, it is possible to brightly illuminate the part that the user wants to see.
- 6 (a), 7 (a) and 8 (a) are views of the user A as seen from above his head, the protruding portion indicates the nose, and the arrow indicates the light emitted from the light emitting unit 14. The emission is shown.
- the lid interlocking switch 34 When the user closes the lid 12, the lid interlocking switch 34 is turned off, and the supply of the power supply voltage to the control circuit 31, the drive circuit 32, and the image sensor 15 is stopped. For this reason, the operation of each of the control circuit 31, the drive circuit 32, and the image sensor 15 is stopped, and as a result, the light emission of the light emitting unit 14 is stopped.
- the light emitting surface of the light emitting unit 14 is equally divided into the left and right regions 14L and the right region 14R by dividing the light emitting surface into the left and right regions by the center line C.
- the luminance of the left region 14L is greater than the luminance of the right region 14R when it is shifted from the right direction to the right direction, and the luminance of the right region 14R is shifted when the detected face orientation is shifted from the right direction to the mirror surface. It is made larger than the luminance of the left region 14L.
- the present invention equally divides the light emitting surface of the light emitting unit into a first region and a second region by dividing the light emitting surface by a center line, and when the detected face orientation is deviated from the directly facing direction with respect to the mirror surface,
- the face direction with respect to the center line of the mirror surface is the first area
- the brightness of the second area opposite to the face direction is made larger than the brightness of the first area
- the face with respect to the center line of the mirror surface When the orientation of the first region is the second region, the luminance of the first region opposite to the face direction may be made larger than the luminance of the second region.
- the direction of the center line of the light emitting surface is not limited to the vertical direction or the horizontal direction, and may be an oblique direction.
- the orientation of the user's face is detected by an angle (for example, every 10 degrees), and the light emission luminance distribution on the light emitting surface is changed stepwise according to the detected angle.
- the light emission luminance distribution on the light emitting surface may be continuously changed according to the face direction detection angle.
- the difference between the light emission luminance of the left region 14L of the light emitting unit 14 and the light emission luminance of the right region 14R increases as the left or right orientation angle of the face increases. You may do it.
- Example 1 when the user's face is directed leftward or rightward with respect to the mirror surface of the mirror unit 13, the difference between the light emission luminance of the left region 14L and the light emission luminance of the right region 14R of the light emitter 14 is.
- the total luminance of the light emission luminance of the left region 14L and the light emission luminance of the right region 14R may be always constant.
- the luminance of the region (14L or 14R) where the luminance should be increased when the face is tilted may be further increased from the uniform luminance when the face faces the front.
- Such brightness adjustment can be performed by controlling the magnitude of the drive current.
- Example 1 the light emission luminance distribution of the light emitting surface of the light emitting unit 14 is controlled as two distributions of the left region 14L and the right region 14R, but the present invention is not limited to this, and the light emitting surface is not limited thereto. May be divided into more regions to control the light emission luminance distribution.
- the light-emitting unit 14 is configured to emit light when the lid 12 is in the open state, but when the presence of a user in front of the mirror surface of the mirror unit 13 is detected instead of the lid 12
- the light emitting unit 14 may emit light by operating the control circuit 31, the drive circuit 32, and the image sensor 15. Further, when the lid 12 is in the open state and the presence of a user in front of the mirror surface of the mirror unit 13 is detected, the control circuit 31, the drive circuit 32, and the image sensor 15 are activated so that the light emitting unit 14 emits light. good.
- an infrared sensor or a seating sensor that detects the seating of the user on the seat can be used.
- the orientation of the user's face is determined based on the area density of the left and right half face parts in the face contour obtained from the output image signal of the image sensor 15.
- the orientation of the user's face may be determined from an image having the highest degree of similarity by comparing the image in the face outline with a front-facing image, a left-facing image, and a right-facing image prepared in advance.
- the orientation of the face may be determined according to the position of a specific face part (for example, nose) in the face outline.
- the light emitting unit 14 is a frame-shaped integrated body that surrounds the mirror unit 13, but as shown in FIG. 9, left and right like the left light emitting unit 20L and the right light emitting unit 20R. May be separated.
- the image sensor 15 is disposed at the center of the upper part of the frame of the light emitting unit 14, but may be disposed separately from the apparatus main body including the mirror unit 13 and the light emitting unit 14. For example, as shown in FIG. 9, the sun visor 11 may be attached.
- a camera that monitors the driver for drowsiness detection in the vehicle may also be used as an image sensor.
- Example 1 described above an organic EL element is used as the light-emitting element of the light-emitting unit 14, but an LED (light-emitting diode) may be used as the light-emitting element. Furthermore, not only the luminance of each of the left region 14L and the right region 14R but also the emission color may be changed according to the orientation of the user's face.
- FIG. 10 shows a configuration of an illuminated mirror device that uses a half mirror as a second embodiment of the present invention.
- This mirror device includes an image sensor 41, an infrared sensor 42, a lid interlocking switch 43, a control circuit 44, a drive circuit 45, a half mirror 46, a light diffusing plate 47, and LED chips 48a, 48b, 49a, 49b.
- the light diffusing plate 47 and the LED chips 48a, 48b, 49a, 49b of the light source unit constitute a light emitting unit.
- the half mirror 46 is slightly smaller in size than the light diffusing plate 47, and is attached to one main surface of the light diffusing plate 47.
- the surface of the half mirror 46 is a reflecting surface, that is, a mirror surface.
- the two LED chips 48 a and 48 b are attached to the left side surface of the light diffusion plate 47, and the two LED chips 49 a and 49 b are attached to the right side surface of the light diffusion plate 47. That is, when the LED chips 48a and 48b emit light, the light enters the light diffusing plate 47 from the left side surface and is diffused in the light diffusing plate 47. On the other hand, when the LED chips 49a and 49b emit light, the light is diffused. 47 is incident from the right side surface thereof and diffused in the light diffusion plate 47.
- the light diffusion plate 47 can generate gradation by diffusing light.
- the image sensor 41 is arranged at the upper center of the main surface of the light diffusing plate 47 to which the half mirror 46 is attached, and is the same as the image sensor 15 of the first embodiment.
- the infrared sensor 42 is a sensor for detecting the presence of the user.
- the lid interlocking switch 43 is the same as the lid interlocking switch 34 of the first embodiment.
- the control circuit 44 constitutes detection means together with the image sensor 41.
- the control circuit 44 includes an A / D converter 51, a memory 52, a contour detection circuit 53, a density determination circuit 54, a CPU 55, an I / O (input / output circuit) 56, a subtractor 57, and a D / A. Converters 58 and 59 are provided.
- the A / D converter 51, the memory 52, the contour detection circuit 53, the density determination circuit 54, the CPU 55, and the I / O 56 are connected to a common bus 60.
- the A / D converter 51 converts the image signal output as an analog signal from the image sensor 41 into a digital signal and supplies it to the common bus 60.
- the memory 52 stores operation programs and processing data for the CPU 55.
- the contour detection circuit 53 is controlled by the CPU 55, and performs a face contour detection operation corresponding to step S3 described above. That is, the contour of the human face is detected from the image indicated by the digital image signal.
- the density discriminating circuit 54 is controlled by the CPU 55 and performs a density discriminating operation corresponding to the above steps S4 and S5.
- the A / D converter 51, the contour detection circuit 53, and the density determination circuit 54 detect the contour of the person's face from the image signal, and the orientation of the person's face with respect to the mirror according to the area density of the area of the face part in the contour This corresponds to a determination unit for determining.
- the density discrimination circuit 54 outputs a digital output corresponding to 0.5 to the subtractor 57 and the D / A converter 59. 1 if the difference between the density of the left half and the right half of the contour exceeds the allowable range, and the density of the left half is higher than the density of the right half (when the face is facing right) When the density of the right half is higher than the density of the left half (when the face is facing left), the digital output corresponding to 0 is supplied to the digital output corresponding to 0. A subtractor 57 and a D / A converter 59 are supplied.
- the subtractor 57 subtracts the output value of the density discrimination circuit 54 from 1 and supplies a digital value indicating the result to the D / A converter 58.
- the D / A converter 58 converts the output digital value of the subtractor 57 into an analog signal and supplies it to the right input of the drive circuit 45.
- the D / A converter 59 converts the output value of the density discrimination circuit 54 into an analog signal and supplies it to the left input of the drive circuit 45.
- the drive circuit 45 includes a right drive system connected to the right input and a left drive system connected to the left input.
- the right drive system has an integration circuit 61R composed of a resistor and a capacitor, and a drive amplifier 62R
- the left drive system has an integration circuit 61L composed of a resistor and a capacitor, and a drive amplifier 62L. That is, the output signal of the D / A converter 58 is supplied to the drive amplifier 62R via the integration circuit 61R, and is supplied to the LED chips 49a and 49b as a drive current from the drive amplifier 62R.
- the output signal of the D / A converter 59 is supplied to the drive amplifier 62L via the integration circuit 61L, and is supplied as drive current from the drive amplifier 62L to the LED chips 48a and 48b.
- the LED chips 48a, 48b, 49a, 49b emit light with the same luminance and the light diffusion plate 47. Almost emits light.
- the LED chips 48a and 48b emit light and the LED chips 49a and 49b are turned off.
- the light diffusion plate 47 has a gradation in which the light emission luminance gradually decreases from the left side toward the right.
- the LED chips 48a and 48b are turned off and the LED chips 49a and 49b emit light.
- the light diffusion plate 47 has a gradation in which the light emission luminance gradually decreases from the right side toward the left.
- LED chips 48a, 48b, 49a, 49b are used as the light sources of the light emitting section, but instead, a half mirror 46 of a light diffusion plate 47 is provided as shown in FIG.
- the organic EL panel 71 may be disposed on the main surface opposite to the one main surface.
- a surface emitting full color type composed of RGB organic EL elements can be used. Also in the mirror device having the configuration of FIG.
- the light diffusing plate 47 produces a gradation in which the light emission luminance gradually decreases from the left side toward the right.
- the light diffusing plate In 47 a gradation in which the light emission luminance gradually decreases from the right side to the left can be generated.
- integration circuits 61R and 61L having time constants are provided, and when the orientation of the user's face changes only for a moment, the movement is absorbed by the integration circuits 61R and 61L. Therefore, a change in the light emission luminance distribution in the light emitting region of the organic EL panel 71 due to a momentary change in face orientation is prevented, and a calm illumination can be given to the user.
- the size of the half mirror 46 is slightly smaller than the light diffusion plate 47, but the half mirror 46 covers the entire main surface of the light diffusion plate 47 as shown in FIG. You may have a size.
- the half mirror was used in the said Example 2, the mirror which light-emits another mirror surface from the whole may be used.
- the illuminated mirror device attached to the sun visor in the vehicle interior is shown.
- the illuminated mirror device of the present invention is not limited to the mirror in the vehicle interior, but is a dressing table, a figure, a hand mirror, and the like. It can be applied to those equipped with a mirror.
- the light emission luminance distribution on the light emitting surface of the light emitting unit is controlled corresponding to the case where the user's face is directed to the left or right, but the present invention is not limited to this. Instead, the light emission luminance distribution on the light emitting surface of the light emitting unit may be controlled corresponding to the case where the user's face is directed upward or downward. In other words, any configuration may be used as long as the luminance of the region of the light emitting surface corresponding to the orientation that is symmetrical to the orientation of the face detected by the detecting means is increased.
- the light emitting unit is driven so that the irradiation luminance of the light emitting surface of the light emitting unit on the lower side of the face becomes higher than the irradiation luminance on the upper side as the orientation of the user's face is higher than the front of the mirror.
- the light emitting unit is driven so that the illumination brightness on the upper side of the face becomes higher than the illumination brightness on the lower side as the orientation of the face is lower than the front of the mirror.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Public Health (AREA)
- Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
12 蓋
13 鏡部
14 発光部
15 画像センサ
31,44 制御回路
32,45 駆動回路
34,43 蓋連動スイッチ
46 ハーフミラー
47 光拡散板
Claims (13)
- ミラーと、
前記ミラーの近傍に配置された照明用の発光部と、
前記発光部を駆動する駆動手段と、を備える照明付きミラー装置であって、
前記ミラー前方の人物の顔の前記ミラーに対する向きを検出する検出手段を含み、
前記駆動手段は、前記検出手段によって検出された前記顔の向きに応じて前記発光部の発光面の発光輝度分布を制御することを特徴とするミラー装置。 - 前記駆動手段は、前記検出手段によって検出された前記顔の向きが前記ミラーに対する正対方向からずれているとき、前記ミラーの中心線に対しての前記顔の向きと反対側の前記発光面の領域の輝度を前記顔の向きの前記発光面の領域の輝度より大きくすることを特徴とする請求項1記載のミラー装置。
- 前記駆動手段は、前記検出手段によって検出された前記顔の向きが前記ミラーに正対しているとき前記発光部の発光面全てが均等輝度で発光するように前記発光部を駆動し、前記検出手段によって前記顔の傾きが前記ミラー正対方向より左側方向にあると検出されたとき前記発光面の前記中心線に対して右側領域の発光輝度が前記発光面の前記中心線に対して左側領域の発光輝度より大となるように前記発光部を駆動し、前記検出手段によって前記顔の向きが前記ミラー正対方向より右側方向にあると検出されたとき前記左側領域の発光輝度が前記右側領域の発光輝度より大となるように前記発光部を駆動することを特徴とする請求項2記載のミラー装置。
- 前記発光部は前記ミラーの外周に配置された枠状の発光面を有し、
前記駆動手段は前記検出手段によって検出された前記顔の向きに応じて前記発光面の前記右側領域に対応した光源と前記左側領域に対応した光源とを個別に駆動することを特徴とする請求項3記載のミラー装置。 - 前記発光部は前記ミラーを挟んで前記左側領域と前記右側領域とを有し、
前記駆動手段は前記検出手段によって検出された前記顔の向きに応じて前記発光面の前記右側領域に対応した光源と前記左側領域に対応した光源とを個別に駆動することを特徴とする請求項3記載のミラー装置。 - 前記ミラーはハーフミラーであり、
前記発光部は、光源部と、前記ハーフミラーがその鏡面側とは反対側の面において貼り付けられた光拡散板とを有し、前記光拡散板は前記光源部からの放出光を拡散することを特徴とする請求項2又は3記載のミラー装置。 - 前記光源部は、前記光拡散板の左側面に配置された左光源と、前記光拡散板の右側面に配置された右光源とを有することを特徴とする請求項6記載のミラー装置。
- 前記光源部は、前記光拡散板の前記ハーフミラーの貼り付け面とは反対側の面側に配置された面光源からなることを特徴とする請求項7記載のミラー装置。
- 前記ミラーを開閉自在に覆う蓋と、
前記蓋の開状態にオンとなって前記駆動手段に電源電圧を供給し、前記蓋の閉状態にオフとなって前記駆動手段への前記電源電圧の供給を停止する蓋連動スイッチと、を備えることを特徴とする請求項2又は3記載のミラー装置。 - 前記ミラー前方の人物の存在を検出する赤外線センサを含み、
前記駆動手段は、前記赤外線センサによって前記ミラー前方の人物の存在が検出されたとき前記発光部を駆動することを特徴とする請求項2又は3記載のミラー装置。 - 前記検出手段は、前記ミラー前方の前記人物の顔を撮像して画像信号を生成する画像センサと、
前記画像信号から前記人物の顔の輪郭を検出し、前記輪郭内の顔パーツの領域の面積密度に応じて前記人物の顔の前記ミラーに対する向きを判別する判別部と、を含むことを特徴とすることを特徴とする請求項2又は3記載のミラー装置。 - ミラーと、前記ミラーの近傍に配置された照明用の発光部と、前記発光部を駆動する駆動手段と、を備える照明付きミラー装置の照明制御方法であって、
前記ミラー前方の人物の顔の前記ミラーに対する向きを検出する検出ステップと、
前記検出ステップによって検出された前記顔の向きに応じて前記駆動手段において前記発光部の発光面の発光輝度分布を制御する制御ステップと、を含むことを特徴とする照明制御方法。 - 前記制御ステップは、前記検出ステップによって検出された前記顔の向きが前記ミラーに対する正対方向からずれているとき、前記ミラーの中心線に対しての前記顔の向きと反対側の前記発光面の領域の輝度を前記顔の向きの前記発光面の領域の輝度より大きくすることを特徴とする請求項12記載の照明制御方法。
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US14/404,945 US9664374B2 (en) | 2012-06-01 | 2012-06-01 | Illuminated mirror device and method for controlling illumination thereof |
EP12877828.9A EP2842464B1 (en) | 2012-06-01 | 2012-06-01 | Illuminated mirror device and illumination control method thereof |
PCT/JP2012/064288 WO2013179483A1 (ja) | 2012-06-01 | 2012-06-01 | 照明付きミラー装置及びその照明制御方法 |
EP21163369.8A EP3881723A1 (en) | 2012-06-01 | 2012-06-01 | Device |
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US9664374B2 (en) | 2017-05-30 |
EP3881723A1 (en) | 2021-09-22 |
EP2842464A1 (en) | 2015-03-04 |
JPWO2013179483A1 (ja) | 2016-01-18 |
JP5919376B2 (ja) | 2016-05-18 |
US20150145408A1 (en) | 2015-05-28 |
EP2842464A4 (en) | 2017-02-22 |
KR101653617B1 (ko) | 2016-09-09 |
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EP2842464B1 (en) | 2021-04-14 |
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