JP6359909B2 - Wearable device - Google Patents

Description

  The present invention relates to a wearable device including a mounting unit that can be mounted on a user's head and an anterior eye part that is disposed in front of the user's eye.

  2. Description of the Related Art In recent years, there is a wearable device that includes a mounting unit that can be mounted on a user's head and an anterior eye part that is disposed in front of the user's eye. For example, as described in Patent Document 1, a head mounted display as a wearable device includes a display unit that displays an image as a front part of the eye so that the user can visually recognize the image.

JP 2010-199789 A

  In the wearable device described in Patent Document 1, no countermeasure is taken into account when the display unit as the front of the eye becomes clouded due to a change in the temperature of the outside air.

  An object of the present invention is to provide a wearable device in which measures are taken when the anterior segment of the eye becomes clouded due to a change in the temperature of outside air or the like.

  The wearable device according to the present invention includes a mounting unit that can be mounted on the user's head, an anterior eye portion that is disposed in front of the user's eyes, and a heating unit that warms the anterior eye portion.

  In addition, a detection unit that detects at least one of the temperature of the anterior region of the eye, the temperature of the outside air, and the humidity of the outside air, the heating unit, when the detection result of the detection unit satisfies a predetermined condition, The anterior eye part may be warmed.

The predetermined condition may be that the humidity of the outside air is a predetermined value or more.
The predetermined condition may be that the temperature of the anterior segment of the eye decreases by a predetermined temperature or more within a predetermined time.

  Further, the predetermined condition may be that the temperature of the outside air rises by a predetermined temperature or more within a predetermined time.

  The predetermined condition may be that the temperature of the anterior eye and the temperature of the outside air are compared, and the temperature of the anterior eye is lower than the temperature of the outside air by a predetermined temperature or more.

  In addition, an infrared sensor that receives infrared rays emitted from the anterior segment of the eye and generates a signal corresponding to the infrared rays, the heating unit warms the anterior segment of the eye in response to changes in the signal, Also good.

  In addition, an imaging unit provided in the mounting unit, and a control unit that analyzes an image captured by the imaging unit, the heating unit warms the anterior eye according to the analysis result. There may be.

  In addition, the control unit analyzes color information of an image captured from the imaging unit, and the heating unit is configured to display the front of the eye when an area of a predetermined ratio or more of the entire area of the image has the same color. The part may be warmed.

  In addition, the heating unit may warm the anterior eye part by a user instruction operation.

  In addition, the heating unit includes a power supply unit and an electric wire wound around the front part of the eye, and the electric wire receives heat supply from the power supply unit and generates heat, whereby the front of the eye The part may be heated.

  The mounting portion includes a bridge and a pair of edges provided across the bridge, and the electric wire is integrally disposed across the bridge and the pair of edges. May be.

  The electric wire may be an antenna coil configured to transmit or receive a radio signal related to short-range wireless communication.

  The electric wire may be a power receiving coil that receives power from an external power transmitting coil in a contactless manner.

  In addition, the heating unit includes a power supply unit and an electrode provided on the inside or the surface of the display unit, and the front part of the eye is a display unit that displays an image so that the user can visually recognize it. The display unit may be heated by the electrode receiving heat from the power supply unit and generating heat.

  ADVANTAGE OF THE INVENTION According to this invention, the wearable apparatus by which the countermeasure when the display part became cloudy was taken can be provided.

It is a figure which shows the external appearance of the wearable apparatus which concerns on one Embodiment of this invention. It is a figure which shows the internal structure of the wearable apparatus which concerns on one Embodiment of this invention. It is a figure which shows the functional block of the wearable apparatus which concerns on one Embodiment of this invention. It is the characteristic view which showed the relationship of the amount of saturated water vapor | steam with respect to the temperature of air in predetermined humidity. It is a figure for demonstrating the 1st modification of embodiment of this invention. It is a figure which shows another shape of a wearable apparatus. It is a figure which shows another shape of a wearable apparatus.

  Hereinafter, the present invention will be described in detail with reference to the drawings. The present invention is not limited to the following description. In addition, constituent elements in the following description include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those in a so-called equivalent range.

  FIG. 1 is a diagram showing an appearance of a wearable device 1 according to an embodiment of the present invention. The wearable device 1 illustrated in FIG. 1 includes a mounting unit 10 that can be mounted on the user's head, an anterior eye portion 20 that is attached to the mounting unit 10 and disposed in front of the user's eyes, and a detection unit 41 provided in the mounting unit 10. , An infrared sensor 42, and an imaging unit 43. The anterior segment 20 is, for example, a lens used for general spectacles or a display unit that displays an image so that the user can visually recognize it. Hereinafter, in the present embodiment, it is assumed that the anterior segment 20 is the display unit 20. Moreover, the detection part 41, the infrared sensor 42, and the imaging part 43 are mentioned later.

  As shown in FIG. 1, the wearable device 1 has a glasses shape (goggles shape). The wearing part 10 of the wearable device 1 includes a front part 11 and side parts 12 and 13. When the wearing unit 10 of the wearable device 1 is worn by the user, the front unit 11 is arranged in front of the user's eyes, and the side units 12 and 13 are arranged along the user's temporal region.

  As described above, the front part 11 is a part arranged in front of the user's eyes when worn by the user. The front portion 11 is formed by integrating a bridge 111 and two edge portions 112 (rims) provided on the left and right sides of the bridge 111. The bridge 111 is a portion that contacts the user's nose when the wearable device 1 is worn, and has a shape that is recessed along the user's nose. The edge 112 supports the display unit 20. The edge 112 is connected to the side surfaces 12 and 13.

  The side surface portion 12 is a portion (a string portion of eyeglasses) arranged along the user's temporal region when worn by the user as described above, and one end portion is one end of the front portion 11. Connected to the department. Here, a spring for adjusting the pressure and an adjuster for changing the angle are arranged at the end of the side surface portion 12 connected to the front surface portion 11 (the base portion of the string of the spectacles of the spectacles). ing. Further, the side surface portion 12 is formed with a side surface support portion 121 that comes into contact with the upper portion of the user's ear when worn. In addition, the side surface support part 121 of this embodiment is a part which touches a user's temporal region.

  As described above, the side surface portion 13 is a portion arranged along the user's temporal region (a portion of a string of eyeglasses) when the user wears the side surface portion, and one end portion is one of the front portion 11. It is connected to the end. Here, a spring for adjusting the pressure and an adjuster for changing the angle are arranged at the end of the side surface portion 13 connected to the front surface portion 11 (the base portion of the string of the spectacles of the spectacles). ing. Further, the side surface portion 13 is formed with a side surface support portion 131 that is in contact with the upper portion of the user's ear when worn. In addition, the side surface support part 131 of this embodiment is a part which touches a user's temporal region.

  The mounting portion 10 may be made of, for example, a metal material such as pure titanium, β titanium, an alloy of nickel and titanium (NT alloy), aluminum, or magnesium. Pure titanium is excellent in corrosion resistance and does not easily cause an allergic reaction. Therefore, for example, it can be suitably used for the bridge 111 and the side surfaces 12 and 13 that touch the user's skin. Since β titanium and NT alloy are superior in elasticity compared to pure titanium, for example, they can be suitably used for the side portions 12 and 13 that are easily loaded. Since aluminum and magnesium are low density and light, it is possible to make it difficult to place a burden on the user during wearing.

  The mounting portion 10 may be made of a plastic material such as celluloid, acetate, grillamide, polycarbonate, or the like instead of the metal material described above. Among them, since acetate is superior in heat resistance as compared with celluloid, it is possible to reduce the possibility of being ignited when power is supplied by the power supply unit 32 and the like which will be described later. Since the grill amide is excellent in elasticity, it can be effectively used for the side portions 12 and 13 which are easily loaded, for example, and also reduces external impact on the electronic components and the like disposed in the mounting portion 10. Easy to do.

  The display unit 20 has a pair of display areas (a first display area 20a and a second display area 20b) provided in front of the eyes of the user's left and right eyes. In the display unit 20, the periphery of the first display region 20 a and the second display region 20 b of the display unit 20 is surrounded by the edge portion 112 of the front portion 11 and is supported by the edge portion 112.

  As the display unit 20, for example, a display panel configured by a liquid crystal display (LCD), an organic electro-luminescence (EL) panel, or the like can be used. Here, as for the display part 20, it is preferable to produce a display panel with a translucent or transparent plate-shaped member. By producing the display panel of the display unit 20 with a translucent or transparent plate-like member, the user can view the scenery through the display unit 20.

  FIG. 2 is a diagram showing an internal structure of the wearable device 1 according to an embodiment of the present invention. In FIG. 2, the mounting portion 10 is indicated by a broken line. In the wearable device 1 shown in FIG. 2, a control unit 31 and a heating unit 32 including a power supply unit 32 a and an electric wire 32 b are disposed inside the mounting unit 10.

  For example, the control unit 31 is provided inside the side surface portion 13. Moreover, the power supply part 32a is arrange | positioned in the vicinity of the location connected with the side part 12 in the edge part 112 of the front part 11, for example. One end of the electric wire 32b is connected to the power supply unit 32a and is wound around the first display region 20a of the display unit 20 inside the edge portion 112 of the mounting unit 10 to form a first coil. Yes. The electric wire 32b extends from the periphery of the first display region 20a to the periphery of the second display region 20b via the bridge 111, and is wound around the second display region 20b to form a second coil. doing. In addition, the location which arrange | positions the control part 31 and the heating part 32 (the electric power supply part 32a and the electric wire 32b) is not limited to this.

  Next, functions of the wearable device 1 according to the present invention will be described with reference to FIG. FIG. 3 is a diagram showing functional blocks of the wearable device 1 according to the embodiment of the present invention. The wearable device 1 includes a display unit 20, a display control unit 21, a control unit 31, a heating unit 32, a detection unit 41, an infrared sensor 42, and an imaging unit 43.

  In addition, the wearable device 1 according to the present invention may further include an operation unit 44, a microphone 45, and a myoelectric sensor 46.

  The display unit 20 displays video and images based on control by the display control unit 21. Note that the display unit 20 may display various images, as long as it can display an image that can be viewed by the user, that is, it can display the image to the user. For example, the display unit 20 may be configured to project an image on a display panel (screen) like a projector. In the case of projecting an image, the image may be projected by scanning with laser light, or the image may be projected by transmitting light through a liquid crystal panel. Moreover, it is good also as a structure which displays an image with respect to a user by irradiating a laser beam directly toward the user from the display part 20. FIG.

  The display control unit 21 controls the operation of the display unit 20 based on the image signal supplied from the control unit 31. For example, when the display unit 20 is a liquid crystal display, the voltage to be applied is controlled to switch on / off of each liquid crystal element. Although not shown, the display control unit 21 is disposed inside the bridge 111 of the front unit 11, for example, separately from the control unit 31. However, the position where the display control unit 21 is arranged is not limited to this. Further, the display control unit 21 may constitute a part of the control unit 31 and be integrated with the control unit 31.

  The control unit 31 includes, for example, a microprocessor unit (MPU: Micro Processing Unit), and executes various processes of the wearable device 1 described above according to procedures instructed by software. That is, the control unit 31 sequentially reads instruction codes from an operating system program, an application program, and the like, and executes processing. In this manner, the control unit 31 controls the operation of each unit and outputs data necessary for each unit, for example, an image signal to the display control unit 21.

  Further, the control unit 31 determines whether the display unit 20 is cloudy or whether the display unit 20 is in a cloudy state based on a predetermined signal output from each function unit. The control unit 31 sets a predetermined condition (clouding condition) for considering that the display unit 20 is cloudy or the display unit 20 is in a cloudy state, and when the clouding condition is satisfied, the display unit 20 is cloudy. It is determined that When it is determined that the fogging condition is satisfied, the control unit 31 causes the heating unit 32 to perform, for example, an operation (fogging reduction operation) for preventing the display unit 20 from being fogged as a predetermined functional unit.

  The control unit 31 includes a storage unit that stores various programs. The storage unit is, for example, a non-volatile storage device (non-volatile semiconductor memory such as ROM: Read Only Memory, a hard disk device, etc.), or a readable / writable storage device (for example, SRAM: Static Random Access Memory, DRAM: Dynamic Random Access). Memory) or the like.

  As described above, the heating unit 32 includes the power supply unit 32a and the electric wire 32b. The power supply unit 32 a is a supply source that supplies power, and supplies power to each functional unit of the wearable device 1. The power supply unit 32a also uses a rechargeable storage battery (battery) or a replaceable and disposable dry battery as a supply source. In the present embodiment, a solar cell, a fuel cell, or the like may be mounted on the mounting unit 10 as the power supply unit 32a. For example, when a solar cell is mounted, the wearable device 1 is always worn on the head, so that sunlight can be acquired efficiently. Moreover, when a fuel cell is mounted, outside air can be taken in efficiently, and the generated water vapor can also be discharged efficiently. Further, the wearable device 1 may include a power switch for controlling on / off of power supply by the power supply unit 32a at an arbitrary position. The power supply unit 32a supplies an amount of power corresponding to the control signal from the control unit 31 to the electric wire 32b.

  The electric wire 32b receives supply of electric power from the electric power supply part 32a. The electric wire 32b receives the supply of electric power from the electric power supply unit 32a and generates heat, thereby increasing the temperature of the display unit 20 (warming the display unit 20). At this time, the increase in the temperature of the display unit 20 depends on the amount of power supplied from the power supply unit 32. That is, the amount of increase in the temperature of the display unit 20 is controlled by the control unit 31.

  The detection unit 41 detects at least one of the temperature of the display unit 20, the temperature of the outside air, and the humidity of the outside air. Here, “outside air” means a surrounding space where the wearable device 1 is exposed (or where a user is present). In the present embodiment, the detection unit 41 includes a temperature sensor 41a and a humidity sensor 41b. The detection unit 41 outputs a signal corresponding to the detected result to the control unit 31. When the control unit 31 determines that the detection result output from the detection unit 41 satisfies the fogging condition, the control unit 31 causes the heating unit 32 to perform the fogging reduction operation.

  The temperature sensor 41a detects the temperature of the display unit 20 of the wearable device 1 and the temperature of the outside air. The temperature sensor 41a is configured by, for example, a contact type platinum resistance temperature detector, a thermistor, a thermocouple, or a non-contact type radiation thermometer. The temperature sensor 41 a outputs a signal corresponding to the detected temperature to the control unit 31.

  The humidity sensor 41b detects the humidity of the outside air. The humidity sensor 41b includes, for example, a hygrometer using an elastic material, a bimetal hygrometer, an electric hygrometer using a sensor made of a semiconductor, and the like. The humidity sensor 41 b sends a signal corresponding to the detected humidity to the control unit 31.

  The infrared sensor 42 receives infrared rays emitted from the display unit 20, generates a signal corresponding to the received infrared rays, and outputs the signal to the control unit 31. The infrared sensor 42 may irradiate a predetermined area of the display unit 20 with infrared rays and receive infrared rays reflected from the areas. The infrared sensor 42 continuously receives infrared rays emitted (or reflected) from the display unit 20. Thereby, the control part 31 can monitor the state of the surface of the display part 20 based on the signal output from the infrared sensor 41, for example.

  The imaging unit 43 photoelectrically converts imaging light obtained by a lens system including an imaging lens, a diaphragm, a zoom lens, a focus lens, a driving system that causes the lens system to perform a focusing operation and a zooming operation, and the lens system. A solid-state imaging device array that generates an imaging signal. The solid-state imaging device array may be realized by, for example, a CCD (Charge Coupled Device) sensor array or a CMOS (Complementary Metal Oxide Semiconductor) sensor array. As illustrated in FIG. 1, the imaging unit 43 may be provided such that the imaging lens is disposed on the bridge 111 of the front unit 11. Thereby, in a state where the user wears the wearable device 1, the direction in which the user visually recognizes and the direction of the subject to be imaged substantially coincide with each other, and the range including the range (view) that the user can see through the display unit 20 is imaged. It is easy to use.

  The operation unit 44 detects an input by a user operation. The operation unit 44 is, for example, a single button or a plurality of buttons provided on the mounting unit 10. Alternatively, the operation unit 44 is a touch detection unit that is provided in the mounting unit 10 and detects contact, for example. The touch detection unit is provided, for example, on the side surface 12 (or 13) of the mounting unit 10 so that a predetermined operation can be performed by a predetermined touch gesture by the user. The operation unit 44 may be provided in the wearable device 1 or as a separate body. When the operation unit 44 is provided as a separate body, the operation may be input by communication with a communication unit to be operated later.

  The microphone 45 collects sound around the wearable device 1. The collected sound is subjected to processing such as amplification and AD conversion (Analog Digital Conversion), and is recognized by the control unit 31. The control unit 31 can perform a predetermined process based on the recognized voice. As a result, the user can issue a moving image reproduction instruction or the like by, for example, saying “reproduction”.

  The myoelectric sensor 46 is provided with an electrode at a position where it can come into contact with the periphery of the user's eyes, and detects a myoelectric potential generated in accordance with the movement of the user's eyes (blink and eye movement). Here, as the measurement electrodes for measuring the myoelectric potential, a first electrode and a second electrode that can be in contact with the left and right sides of the user's nose are extended from the bridge 111 of the mounting unit 10 (not shown). The nose pad is provided. Further, a third electrode that can contact the center of the user's nose is provided on the bridge 111 as a reference electrode. With such a configuration, the myoelectric sensor 46 is configured so that, for example, when the user moves the line of sight in a predetermined direction (or performs blinking), the first electrode with the third electrode as a reference and A change in the potential of the second electrode is detected. The myoelectric sensor 46 outputs information on the detected potential change (a signal corresponding to the myoelectric potential) to the control unit 31. The control unit 31 detects that the user's line of sight has moved (or blinked) based on the potential change information output from the myoelectric sensor 46. Therefore, the user can perform a predetermined operation on the wearable device 1 by intentionally performing a predetermined operation of the eyes.

  The third electrode as a reference electrode used for the myoelectric sensor 46 may be provided at a position different from the bridge 111. For example, the third electrode may be provided on the side surface support portion 121 (or 131) in the side surface portion 12 (or 13).

  The function of the wearable device according to the present invention has been described above. Note that the wearable device 1 may have other configurations in addition to the various configurations described above. The wearable device 1 includes a communication unit, an earphone, and the like, for example.

  The communication unit includes an antenna and an RF circuit unit. For example, the communication unit communicates with other external devices wirelessly or by wire. A communication part transmits / receives various information by communicating with another apparatus. Here, in the case of wireless connection, for example, a method such as WiFi, Bluetooth (registered trademark), wireless LAN (IEEE 802.11), ZigBee (registered trademark), infrared communication, visible light communication, NFC (Near Field Communication), or the like is used. It may be adopted. The communication unit need not support one communication method for performing communication, and may support a plurality of wireless communication methods. Further, the antenna used for wireless connection may be at an arbitrary position in the wearable device 1. For example, when the aforementioned metal material is used for the mounting portion 10, a part of the mounting portion 10 may function as an antenna. In the case of wired connection, for example, USB (Universal Serial Bus), HDMI (registered trademark) (High-Definition Multimedia Interface), MHL (Mobile High-definition Link), light peak (thunderbolt connector), earphone microphone Standards such as transmission may be adopted. Further, in the case of performing wired connection, power supply may be possible from a wire. In this case, the wire may be at an arbitrary position in the wearable device 1.

  Note that the communication unit may perform communication using a communication method such as 2G, 3G, or 4G for performing communication via a public line network. Communication standards for performing communication via a public line network include, for example, LTE (Long Term Evolution), W-CDMA (Wideband Code Division Multiple Access), CDMA2000, PDC (Personal Digital Cellular), GSM (registered trademark). (Global System for Mobile Communications), PHS (Personal Handy-phone System), and the like. The communication method used by the communication unit for communication may include a communication method for performing data communication via a public line network, such as WiMAX (World Wide Interoperability for Microwave Access). When the communication unit uses a communication method for performing data communication, a call is realized by combining a data transmission technique and a technique for transmitting voice such as VoIP (Voice over Internet Protocol) as data. The communication unit need not support one communication method for performing communication, and may support a plurality of communication methods for performing communication via a public line network.

  When the earphone is provided, the control unit 31 generates sound data, performs decoding, DA conversion (Digital Analog conversion), amplification, and the like on the sound data to convert the sound data into an analog sound signal. Output to the earphone.

  Next, a phenomenon in which condensation occurs will be described with reference to FIG.

FIG. 4 is a characteristic diagram showing the relationship between the amount of saturated water vapor (maximum amount of water vapor that can exist in 1 m ^{3 of} air) and the temperature of the air (air temperature). As shown in the figure, the saturated water vapor amount decreases as the temperature decreases.

As shown in the figure, for example, in a space where the humidity is 50% and the temperature is 25 ° C., 11.5 g of water vapor is present in 1 m ^{3 of} air (point A). When the temperature is lowered from this state, the amount of water vapor in the air 1 m ³ is constant, so that the point A moves in parallel on the horizontal axis. When the temperature drops to 13 ° C. (point B), the amount of saturated water vapor is reduced to 11.5 g / m ³ , which is consistent with the amount of water vapor shown at point A. This means that the humidity is 100%. Furthermore, if the temperature is lowered to 8 ° C. (point C), the saturated water vapor amount is 8.3 g / m ³ , which is lower than the water vapor amount indicated by point A. At this time, the amount of water vapor (11.5 g / m ³ ) indicated at point B (or point A) originally present in 1 m ^{3 of} air to the amount of saturated water vapor (8.3 g / m ³ ) indicated at point C. Since the amount of water vapor (3.2 g / m ³ ) minus the amount cannot be present in the air, it becomes liquid and forms dew (condenses).

According to the principle of occurrence of dew condensation, when the space near the surface of the display unit 20 of the wearable device 1 is lower than the surrounding space (outside air) by a predetermined temperature, the display unit 20 becomes cloudy. For example, referring to the above example, if the temperature of the space near the surface of the display unit 20 is 8 ° C., the temperature of the outside air is 25 ° C., and the humidity of the outside air is 50%, the space near the surface of the display unit 20 The amount of saturated water vapor is less than the amount of water vapor in the outside air, and 3.2 g / m ³ of water vapor is condensed and adheres to the surface of the display unit 20 in the same manner as described above.

  In such a case, it is possible to make the condensation less likely by warming the display unit 20. For example, referring to the above example, if the display unit 20 is warmed to 13 ° C. or higher, the saturated water vapor amount in the space near the surface of the display unit 20 exceeds the water vapor amount in the outside air. Condensation will not occur.

  The wearable device 1 according to the present invention includes a heating unit that warms the display unit 20. Therefore, as described above, the display unit 20 can be warmed so that the saturated water vapor amount in the space near the surface of the display unit 20 exceeds the water vapor amount in the outside air. It can provide as the wearable apparatus 1 by which the countermeasure in case the part 20 (anterior part of the eye) clouded was taken.

  Further, as described above, the cloudiness of the display unit 20 is affected by the temperature of the display unit 20, the temperature of the outside air, and the humidity of the outside air. On the other hand, the wearable device 1 according to the present invention includes a detection unit 41 that can detect at least one of the temperature of the display unit 20, the temperature of the outside air, and the humidity of the outside air, and the detection result of the detection unit 41 is predetermined. When the above condition (cloudy condition) is satisfied, the display unit 20 is warmed by the heating unit 32. With such a configuration, the wearable device 1 according to the present invention can automatically warm the display unit 20 based on factors that affect the ease of fogging of the display unit 20, and thus requires an instruction operation or the like by the user. In addition, fogging of the display unit 20 can be reduced.

  Further, as described above, when the humidity of the outside air space becomes 100%, the display unit 20 becomes cloudy. Alternatively, when the humidity of the outside air space approaches 100%, the display unit 20 becomes easily cloudy. Therefore, as the cloudy condition, the humidity of the outside air may be a predetermined value or more. For example, as the cloudy condition, the humidity of the outside air may be 80% or more. That is, the control unit 31 causes the heating unit 32 to execute the fog reduction operation when it is recognized that the humidity of the outside air is 80% or more based on a signal output from the humidity sensor 41b of the detection unit 41. Just do it.

The cloudy condition is not limited to the above. Another clouding condition is that the temperature of the display unit 20 decreases by a predetermined temperature or more within a predetermined time. For example, as in the above example, when the humidity of the outside air is 50% and the temperature of the display unit 20 decreases from 25 ° C. to 8 ° C., it is determined that the clouding condition is satisfied, and the fog reduction operation is executed. Just do it. In this case, the space near the surface of the display unit 20 is cooled to about 8 ° C., and the saturated water vapor amount in the space is 8.3 g / m ³ . On the other hand, the outside air has a temperature equivalent to 25 ° C. before the temperature of the display unit 20 decreases, and the water vapor amount of the outside air is 11.5 g / m ³ . Therefore, the amount of saturated water vapor in the space near the surface of the display unit 20 is lower than the amount of water vapor in the outside air, and 3.2 g / m ³ of water vapor is condensed in the same manner as described above. It will adhere (cloudy).

Yet another clouding condition is that the temperature of the outside air rises over a predetermined temperature within a predetermined time. For example, as in the above example, if the humidity of the outside air is 50% and the temperature of the outside air rises from 8 ° C. to 25 ° C., it is determined that the fogging condition is satisfied, and the fog reduction operation is executed. good. In this case, the temperature of the display unit 20 is maintained at 8 ° C. for a while (predetermined time) before the temperature of the outside air rises. Accordingly, the space near the surface of the display unit 20 is cooled to about 8 ° C., and the saturated water vapor amount in the space becomes 8.3 g / m ³ . On the other hand, since the temperature of the outside air is 25 ° C. and the amount of water vapor in the outside air is 11.5 g / m ³ , the saturated water vapor amount in the space near the surface of the display unit 20 must be lower than the amount of water vapor in the outside air. In the same manner as described above, 3.2 g / m ³ of water vapor is condensed and adheres to the surface of the display unit 20 (clouds).

As another fogging condition, the temperature of the display unit 20 is compared with the temperature of the outside air, and the temperature of the display unit 20 is lower than the temperature of the outside air by a predetermined temperature or more. For example, similarly to the above-described example, when the temperature of the outside air is 25 ° C. and the temperature of the display unit 20 is 8 ° C., it is determined that the fogging condition is satisfied, and the fog reduction operation is performed. In this case, the space near the surface of the display unit 20 is cooled to about 8 ° C., and the saturated water vapor amount in the space is 8.3 g / m ³ . On the other hand, since the temperature of the outside air is 25 ° C. and the amount of water vapor in the outside air is 11.5 g / m ³ , the saturated water vapor amount in the space near the surface of the display unit 20 must be lower than the amount of water vapor in the outside air. In the same manner as described above, 3.2 g / m ³ of water vapor is condensed and adheres to the surface of the display unit 20 (clouds).

  Further, the condition (fogging condition) for executing the fog reduction operation is not limited to the above. FIG. 5 is a diagram for explaining a first modification of the embodiment of the present invention. In FIG. 5, in the wearable device 1, only the display unit 20 and the infrared sensor 42 are extracted and shown. The infrared sensor 42 is provided in the front part 11 of the mounting part 10 so that infrared rays can be irradiated to the display part 20 side, for example.

  The infrared sensor 42 receives infrared rays emitted from the display unit 20. Alternatively, the infrared sensor 42 irradiates the display unit 20 with infrared rays and receives the infrared rays reflected from the display unit 20. The infrared sensor 42 outputs a signal corresponding to the received infrared ray to the control unit 31. The infrared sensor 42 receives an infrared ray radiated (reflected) from a water droplet due to the condensation that has not existed before when the condensation occurs on the display unit 20 that is an infrared irradiation target. Show.

  The control unit 31 determines that the cloudy condition is satisfied when the signal corresponding to the infrared light received by the infrared sensor 42 changes by a predetermined value or more. That is, the control unit 31 monitors the output of the signal from the infrared sensor 42 and detects that a sudden output change that can determine that condensation has occurred on the display unit 20 is triggered. judge.

  With such a configuration, it is possible to determine that the fogging condition is satisfied when the fogging (condensation) actually occurs on the surface of the display unit 20, so the fogging reduction operation is performed unnecessarily. It is possible to prevent malfunctions such as

  Moreover, in this modification, the infrared sensor 42 may make the sensitivity of the infrared absorption wavelength range of water high from the viewpoint of more accurately determining the cloudy condition.

  Further, the means for determining the fogging condition using the infrared sensor 42 is not limited to the above. Below, the 2nd modification of embodiment of this invention is demonstrated.

  In the second modification, the infrared sensor 42 is provided, for example, on a surface of the front portion 11 of the mounting unit 10 that faces the user's face. The infrared sensor 42 irradiates a predetermined area of the user's face with infrared light, and receives the infrared light reflected from the area. The infrared sensor 42 outputs a signal corresponding to the received infrared ray to the control unit 31. Here, when the display unit 20 is condensed and the view is blocked, the user's face may perform a predetermined operation in a reflective manner. When the user's face performs a predetermined operation, a signal corresponding to the operation is output to the control unit 31.

  The control unit 31 determines that the cloudy condition is satisfied when the signal output from the infrared sensor 42 changes by a predetermined value or more. That is, the control unit 31 monitors the output of the signal from the infrared sensor 42, and determines that the cloudy condition is satisfied when an output change that can be determined that the user's face has performed a predetermined operation is detected. To do. In addition, the control unit 31 stores in advance a signal pattern characterized by a reflective operation that is performed when the user's view is suddenly interrupted, and the signal pattern output from the infrared sensor 42 is stored in the control unit 31. It may be determined that the cloudy condition is satisfied when the values coincide with each other.

  Further, in this modification, when the display unit 20 is clouded and the field of view is blocked, particularly the eyes move reflexively, the operation detected by the infrared sensor 42 is to blink or move the line of sight. good.

  In addition, the wearable device 1 is configured to determine that the clouding condition is established by detecting the reflective operation of the user, but is not limited thereto, and by detecting the intentional operation of the user, It may be determined that the cloudy condition is satisfied. For example, when the user visually recognizes that the display unit 20 has condensed and the view has been blocked, the user performs a predetermined operation as a predetermined instruction operation to the wearable device 1. The wearable device 1 determines that the cloudy condition is established when a predetermined operation of the user is detected. The user's intentional action at this time may be, for example, blinking a predetermined number of times or moving the line of sight in a predetermined direction.

  Further, another means may be used for determining whether or not the fogging condition is successful. Below, the 3rd modification of embodiment of this invention is demonstrated.

  In the third modification, the wearable device 1 includes the myoelectric sensor 46 described above. The myoelectric sensor 46 detects a myoelectric potential generated with the movement of the user's face, and outputs a signal corresponding to the detected myoelectric potential to the control unit 31. Here, when the display unit 20 is condensed and the view is blocked, the user's face may perform a predetermined operation in a reflective manner. When the user's face performs a predetermined operation, a signal corresponding to the operation is output to the control unit 31.

  The control unit 31 determines that the cloudy condition is satisfied when the signal output from the myoelectric sensor 46 changes by a predetermined value or more. That is, the control unit 31 monitors the output of the signal from the myoelectric sensor 46, and the cloudy condition is established when an output change that can be determined that the user's face has performed a predetermined motion is detected. judge. In addition, the control unit 31 stores in advance a signal pattern characterized by a reflexive action that is performed when the user's field of view is suddenly interrupted, and the signal pattern output from the myoelectric sensor 42 is stored. When this coincides, it may be determined that the cloudy condition is satisfied.

  With such a configuration, as described above, the myoelectric sensor 46 for performing a predetermined operation on the wearable device 1 by the movement of the face can be used in combination for the determination of the success or failure of the cloudy condition.

  Further, in this modification, when the display unit 20 is clouded and the field of view is blocked, the eyes, particularly the eyes, move reflexively. Therefore, the operation detected by the myoelectric sensor 46 may be blinking or eye movement. It ’s fine.

  In addition, the wearable device 1 is configured to determine that the clouding condition is established by detecting the reflective operation of the user, but is not limited thereto, and by detecting the intentional operation of the user, It may be determined that the cloudy condition is satisfied. For example, when the user visually recognizes that the display unit 20 has condensed and the view has been blocked, the user performs a predetermined operation as a predetermined instruction operation to the wearable device 1. The wearable device 1 determines that the cloudy condition is established when a predetermined operation of the user is detected. The user's intentional action at this time may be, for example, blinking a predetermined number of times or moving the line of sight in a predetermined direction.

  Further, another means may be used for determining whether or not the fogging condition is successful. Below, the 4th modification of embodiment of this invention is demonstrated.

  In the fourth modification, the wearable device 1 includes the imaging unit 43 described above. The control unit 31 analyzes the image captured by the imaging unit 43 and determines whether or not the display unit 20 is cloudy according to the analysis result. For example, the control unit 31 determines whether or not the display unit 20 is cloudy based on the color information of the image captured by the imaging unit 43. That is, the control unit 31 determines that the imaging lens is clouded when an area of a predetermined ratio or more among all the areas of the image captured by the imaging unit 43 is the same color, and at the same time, the display unit 20 also Judged to be cloudy. For example, the control unit 31 determines that the imaging lens is cloudy when 60% or more of the entire area of the image has the same color.

  Further, in the above embodiment, the configuration in which the wearable device 1 warms the display unit 20 as the front of the eye when the clouding condition is established is not limited to this, but the wearable device 1 has the clouding condition. When established, the imaging lens may be warmed.

  Further, the conditions for executing the fog reduction operation are not limited to the above. For example, it is good also as a structure which heats the display part 20 by a user's instruction | indication operation. The instruction operation may be, for example, an operation on the operation unit 44 described above or a voice instruction on the microphone 45 described above.

  In addition, as described above, the wearable device 1 according to an embodiment of the present invention includes the power supply unit 32a and the electric wire 32b, and the electric wire 32b receives heat supply from the power supply unit 32a and generates heat. Thus, the display unit 20 is configured to be warmed. At this time, the electric wire 32b is wound around the display unit 20 and arranged. With such a configuration, heat from the electric wire 32b is uniformly applied to the display unit 20 from the surroundings, and the clouding can be easily removed without unevenness.

  In the wearable device 1 according to an embodiment of the present invention, as illustrated in FIG. 2, the electric wires 32 b may be integrally disposed across the bridge 111 and the edge 112. With such a configuration, the display unit 20 can be warmed by only one power supply unit 32a with respect to the pair of display units 20 provided with the bridge 111 therebetween.

  Moreover, in the wearable apparatus 1 which concerns on one Embodiment of this invention, the electric wire 32b may be extended in at least one of the side part 12 and the side part 13. FIG. With such a configuration, for example, when the user feels pain because the temporal region or ears are cold in winter, the temperature is adjusted (heated) at the first side surface portion 12 or the second side surface portion 13 so that the pain can be reduced. Can be tempered. Moreover, it is preferable that the electric wire 32b is extended to the inside of the side surface support parts 121 and 131 which contact a user's temporal region.

  Moreover, in the wearable apparatus 1 which concerns on one Embodiment of this invention, the electric wire 32b may be used together as an antenna coil comprised so that the radio | wireless signal regarding near field communication may be transmitted or received. In such a configuration, the user's personal information (for example, the lens power and astigmatism information currently used by the user) is stored in the storage unit of the control unit 31, and the information is appropriately stored in an external device. Can be sent.

  Moreover, in the wearable apparatus 1 which concerns on one Embodiment of this invention, the electric wire 32b may be used together as a receiving coil which receives the supply of electric power from an external power transmission coil non-contactingly. Since the wearable device 1 is always worn by the user during the day, the timing for charging is limited. Therefore, for example, at the time of going to bed, it is placed on a charging stand (glasses holder) equipped with a power transmission coil so that charging is performed.

  Although the present invention has been described based on the drawings and embodiments, it should be noted that those skilled in the art can easily make various changes and modifications based on the present disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention. Further, all the technical matters disclosed in this specification can be rearranged so as not to contradict each other, and a plurality of components can be combined into one or divided.

  In the above embodiment, the example where the wearable device 1 has a shape like a glasses shape (goggles shape) has been shown, but the shape of the wearable device 1 is not limited to this. For example, the wearable device 1 may have a helmet-type shape that covers substantially the upper half of the user's head, like the wearable device 2 shown in FIG. 6. Alternatively, the wearable device 1 may have a mask type shape that covers almost the entire face of the user, like the wearable device 3 shown in FIG. As shown in FIGS. 6 and 7, the wearable device according to the present invention may be configured to include imaging units at two locations on the left and right sides of the front.

  In the above embodiment, the configuration in which the display unit 20 has a pair of display areas (first display area 20a and second display area 20b) provided in front of the left and right eyes of the user has been exemplified. However, the present invention is not limited to this, and the display unit 20 may be configured to have one display area provided in front of one of the left and right eyes of the user. Alternatively, the display unit 20 may have a single display area arranged in front of the user's left and right eyes, and may have a shape capable of displaying an image on both the left and right eyes.

  Further, in the above-described embodiment, the configuration in which the edge 112 of the front part 11 surrounds the entire periphery of the edge of the display area of the display unit 20 has been exemplified, but the present invention is not limited to this, and the display of the display unit 20 The configuration may be such that only a part of the edge of the region is enclosed.

  Moreover, in said embodiment, although the electric wire 32b was wound around the display area of the display part 20, and the structure which forms a coil has been shown, it is not limited to this, The electric wire 33 does not form a coil. Alternatively, the display unit 20 may be arranged in a part of the periphery of the display area.

  Moreover, in said embodiment, the heating part 32 has the electric power supply part 32a and the electric wire 32b, and when the electric wire 32b receives supply of electric power from the electric power supply part 32a and generate | occur | produces heat | fever, the display part 20 However, the present invention is not limited to this, and the heating unit includes a power supply unit and an electrode provided on or on the surface of the display unit 20, and the electrode receives power from the power supply unit. A configuration may be adopted in which the temperature of the display portion is adjusted by generating heat by receiving supply. With such a configuration, the display unit 20 can be warmed without providing an electric wire around the display unit 20.

DESCRIPTION OF SYMBOLS 1 Wearable apparatus 10 Mounting part 11 Front part 12 Side part 13 Side part 20 Display part 31 Control part 32 Heating part 41 Detection part 42 Infrared sensor 43 Imaging part 44 Operation part 45 Microphone 46 Myoelectric sensor 111 Bridge 112 Edge part 121 Side support Part 131 Side support

Claims (6)

A mounting portion that can be mounted on the user's head;
An anterior eye portion disposed in front of the user's eyes when worn on the head ;
A heating unit for warming the anterior segment of the eye;
An imaging unit provided in the mounting unit;
A control unit that analyzes an image captured by the imaging unit,
The heating unit is a wearable device that warms the front of the eye according to the result of the analysis . The control unit analyzes color information of an image captured from the imaging unit,
  The heating unit warms the front of the eye when an area of a predetermined ratio or more out of the entire area of the image has the same color.
  The wearable device according to claim 1. The heating unit includes a power supply unit and an electric wire wound around the front of the eye,
  When the electric wire receives heat from the power supply unit and generates heat, the front part of the eye is warmed.
  The wearable device according to claim 1 or 2. The mounting portion has a bridge and a pair of edges provided across the bridge,
  The electric wire is integrally disposed across the bridge and the pair of edges.
  The wearable device according to claim 3. The electric wire is an antenna coil configured to transmit or receive a radio signal related to short-range wireless communication.
  The wearable device according to claim 3. The electric wire is a power receiving coil that receives power from an external power transmitting coil in a contactless manner.
  The wearable device according to claim 3.

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