Electronic device

Abstract

To provide means which achieves at least one of obtaining a sufficient reproduction band, securing a sufficient sound pressure level, and eliminating a need of equalizing adjustment at the amplifier side in an electronic device including a bone conduction speaker.SOLUTION: An audio glass 1 includes: a frame 2 having a temple 22; a bone conduction speaker 4 provided within a housing forming the temple 22; a dynamic speaker 5 provided within a housing 51 different from the housing forming the temple 22; and an adjustment mechanism 6 which may adjust a position of the housing 51 relative to the housing forming the temple 22.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an electronic device.

Background Art

[0002] Generally, sound enters the ear canal as air vibrations, vibrates the eardrum, and is transmitted to the inner ear (auditory nerve), enabling humans to hear the sound (air conduction (so-called air-conducted sound)). In contrast, "bone conduction" directly transmits sound to the auditory nerve through the skull without passing through the eardrum, allowing humans to hear sounds without being disturbed by external noise. Also, according to bone conduction, humans can hear both the sound coming in through the ear while listening to a sound, so unlike acoustic devices (headphones, earphones) that utilize only air conduction, it is possible to keep the ears open. Thus, for example, it is used as a communication means for people working in situations where it is dangerous to keep the ears closed (workers at construction sites, firefighters, soldiers, etc.). Furthermore, it is said that when humans use acoustic devices (headphones, earphones) that utilize only air conduction for a long time, it may cause fatigue and affect the decline of auditory functions, but the possibility is less with bone conduction.

[0003] As such an audio device using bone conduction, as shown in FIGS. 1, 2A of Patent Document 1 and FIGS. 1(a), (b) of Patent Document 2, there are products in which bone conduction speakers are attached to glasses or sunglasses. A position adjustment mechanism is provided in the speaker part of these bone conduction speakers so that the speaker part can be adjusted to an optimal position. However, with only bone conduction speakers, a sufficient reproduction band cannot be obtained for audio devices, and in a situation where the ears are open under noise, a sufficient sound pressure level cannot be ensured, so it was necessary to perform equalizing adjustment on the amplifier side.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

[0005] As mentioned above, conventional technology had problems such as not being able to obtain a sufficient playback bandwidth, not being able to secure a sufficient sound pressure level, and requiring equalization adjustments on the amplifier side.

[0006] The object of the present invention is to provide a means for achieving at least one of the following in an electronic device equipped with a bone conduction speaker: obtaining a sufficient playback bandwidth, ensuring a sufficient sound pressure level, and eliminating the need for equalization adjustment on the amplifier side. [Means for solving the problem]

[0007] The electronic device of the first invention is characterized by comprising: a frame having temples; a bone conduction speaker provided inside a first housing that forms the temples; a dynamic speaker provided inside a second housing separate from the first housing; and a first adjustment mechanism that allows the position of the second housing to be adjusted relative to the first housing.

[0008] In this invention, the electronic device comprises a bone conduction speaker that utilizes bone conduction and a dynamic speaker that utilizes air conduction. Furthermore, the first adjustment mechanism allows the position of the second housing, in which the dynamic speaker is housed, to be adjusted. For example, when the electronic device is used as an audio device for playing music, by adjusting the position of the second housing using the first adjustment mechanism and using the bone conduction speaker and the dynamic speaker, a sufficient playback bandwidth can be obtained because each device complements the other's frequency range.

[0009] Furthermore, for example, in noisy environments, the position of the second housing can be adjusted by the first adjustment mechanism, and by using only the bone conduction speaker, the user can hear the sound through bone conduction. If earplugs are worn, external noise is blocked out, and the lack of sound pressure is resolved. This ensures a sufficient sound pressure level.

[0010] Furthermore, even when used as an audio device, it provides a sufficient frequency range and ensures adequate sound pressure levels even in noisy environments, eliminating the need for equalization adjustments on the amplifier side.

[0011] Furthermore, since there is no need to include an equalization adjustment function on the amplifier side, the product can be made inexpensive.

[0012] The electronic device of the second invention is characterized in that, in the electronic device of the first invention, the second housing moves between a first position in which the dynamic speaker is not used and a second position in which the dynamic speaker is used.

[0013] The electronic device of the third invention is characterized in that, in the electronic device of the second invention, the second housing is attached to the first housing such that, when worn, the dynamic speaker is coaxial with respect to the auricle at the second position.

[0014] In this invention, the second housing is mounted on the first housing such that, when worn, the dynamic speaker is coaxial with the auricle at the second position where the dynamic speaker is used. As a result, when the user wears the electronic device, the dynamic speaker is coaxial with the auricle, which acts as a sound collector, at the second position, so that the radiated sound is faithfully delivered to the eardrum, the sound pressure level can be maintained even in noisy environments, and sound leakage to the surroundings can be reduced.

[0015] The electronic device of the fourth invention is characterized in that, in the electronic device of the second or third invention, the second housing is attached to the first housing such that, when worn, the dynamic speaker faces the ear in the second position.

[0016] The electronic device of the fifth invention is characterized in that, in the electronic device of any of the first to fourth inventions, the second housing is rotatable relative to the first housing by the first adjustment mechanism.

[0017] The electronic device of the sixth invention is characterized in that, in the electronic device of any of the first to fifth inventions, the first adjustment mechanism rotatably supports the second housing with respect to the first housing.

[0018] The electronic device of the seventh invention is characterized in that, in the electronic device of any of the first to sixth inventions, the first adjustment mechanism comprises a bolt, a bolt hole provided in the first housing and the second housing, and a compression coil spring.

[0019] The electronic device of the eighth invention is characterized in that, in the electronic device of any of the first to seventh inventions, the bone conduction speaker is a dynamic type vibrator.

[0020] The electronic device of the ninth invention is characterized in that, in the electronic device of any of the first to seventh inventions, the bone conduction speaker is a super magnetostrictive actuator.

[0021] The electronic device of the 10th invention is characterized in that, in the electronic device of any of the 1st to 9th inventions, the dynamic speaker is a microdriver.

[0022] The electronic device of the 11th invention is characterized in that, in the electronic device of any of the 1st to 10th inventions, the material of the diaphragm and the material of the edge are different in the dynamic speaker.

[0023] The electronic device of the 12th invention is the electronic device of any one of the 1st to 11th inventions, wherein in the dynamic speaker, the material of the diaphragm is any one of carbon paper, cellulose nanofiber, magnesium, aluminum, and titanium.

[0024] The electronic device of the 13th invention is the electronic device of any one of the 1st to 12th inventions, wherein in the dynamic speaker, the material of the edge is any polymer film-based material such as urethane-based elastomer, PEI, and PEEK, or a laminate thereof.

[0025] The electronic device of the 14th invention is the electronic device of any one of the 2nd to 4th inventions, wherein at the first position, the second housing is substantially parallel to the temple.

[0026] The electronic device of the 15th invention is the electronic device of any one of the 1st to 14th inventions, further comprising a lens, and the frame holds the lens.

[0027] The electronic device of the 16th invention includes a frame having a temple, a first bone conduction speaker provided on the temple and receiving a signal below a predetermined frequency band, and a second speaker receiving a signal above the predetermined frequency band.

[0028] In the present invention, the electronic device includes a first bone conduction speaker that receives a signal below a predetermined frequency band and a second speaker that receives a signal above the predetermined frequency band. Thereby, each device complements its respective band, and a sufficient reproduction band can be obtained.

[0029] The electronic device of the 17th invention is characterized in that, in the electronic device of the 16th invention, it comprises a frame having temples, a bone conduction first speaker provided inside a third housing separate from the first housing that forms the temples, a second speaker, and a second adjustment mechanism that allows the position of the third housing to be adjusted relative to the first housing.

[0030] In this invention, the second adjustment mechanism allows for adjustment of the position of the third housing, which is equipped with the first bone conduction speaker. Therefore, for example, when an electronic device is used as an audio device for playing music, the position of the third housing can be adjusted by the second adjustment mechanism, and the bone conduction speaker can be positioned, for example, in the cartilage conduction area next to the tragus, making it possible to hear sound sufficiently through bone conduction.

[0031] The electronic device of the 18th invention is characterized in that, in the electronic device of the 17th invention, the second speaker is a dynamic speaker.

[0032] The electronic device of the 19th invention is characterized in that, in the electronic device of the 18th invention, the first speaker is provided in a first housing that forms the temple, the second speaker is provided in a second housing separate from the first housing and the third housing, and the device further comprises a third adjustment mechanism that allows the position of the second housing to be adjusted relative to the third housing. [Effects of the Invention]

[0033] According to the present invention, in an electronic device equipped with a bone conduction speaker, it is possible to achieve at least one of the following: a sufficient playback bandwidth can be obtained, a sufficient sound pressure level can be secured, and equalization adjustment on the amplifier side is unnecessary. [Brief explanation of the drawing]

[0034] [Figure 1] This is a perspective view showing an audio glass according to the first embodiment of the present invention. [Figure 2]This is a perspective view showing an audio glass according to the first embodiment of the present invention. [Figure 3] This diagram shows a user wearing audio glasses. [Figure 4] This diagram shows a user wearing audio glasses. [Figure 5] This is a view of the area around the user's ear, as seen from above, in Figure 4. [Figure 6] This is a perspective view showing an audio glass according to a second embodiment of the present invention. [Figure 7] This diagram shows a user wearing audio glasses. [Figure 8] This is a diagram showing the area around the ear. [Modes for carrying out the invention]

[0035] Embodiments of the present invention will be described below.

[0036] (First Embodiment) Figures 1 and 2 are perspective views showing audio glasses 1 according to a first embodiment of the present invention. Audio glasses 1 (electronic device) have the shape of eyeglasses or sunglasses and reproduce sound. Audio glasses 1 receive sound data from a smartphone, digital audio player (DAP), etc., in accordance with a wireless communication standard such as Bluetooth®, and reproduce sound based on the received sound data.

[0037] As shown in Figures 1 and 2, the audio glasses 1 include a frame 2, lenses 3, bone conduction speakers 4, dynamic speakers 5, an adjustment mechanism 6, etc. The frame 2 has rims 21, temples 22, a bridge 23, etc. The two lenses 3 are each fitted into the internal space formed by the rims 21. That is, the two rims 21 each hold the lenses 3. The two rims 21 are connected by a bridge 23. The temples 22 are the parts that extend perpendicular to the extending direction of the rims 21 in the state shown in Figures 1 and 2. The rims 21 and temples 22 are connected by hinges, and the two temples 22 are rotatable inward relative to the rims 21 from the state shown in Figures 1 and 2, respectively, by the hinges. The tips of the temples 22 are curved downward. The user puts on the audio glasses 1 by placing the curved part of the temples 22 over their ears.

[0038] The temples 22 are formed, for example, from a resin housing. Two bone conduction speakers 4 (first speakers) are each provided inside the housing (first housing) that forms the temples 22. The bone conduction speakers 4 are, for example, dynamic vibrators with a diameter of Φ16 mm. Low-frequency signals (below a predetermined frequency band) are input to the bone conduction speakers 4. In other words, the bone conduction speakers 4 are for low frequencies. When the user is wearing the audio glasses 1, the two bone conduction speakers 4 come into contact, for example, near the user's temples. In this state, the bone conduction speakers 4 vibrate the bones of the skull, allowing the user to hear sound. Needless to say, the bone conduction speakers 4 are speakers that utilize bone conduction. Also, as described above, in this embodiment, the bone conduction speakers 4 are dynamic vibrators. However, the bone conduction speakers 4 are not limited to this and may be magnetostrictive actuators.

[0039] The dynamic speaker 5 (second speaker) is located inside a separate housing 51 (second housing) from the housing that forms the temple 22. The dynamic speaker 5 is, for example, a micro-driver with a diameter of Φ14 mm. The dynamic speaker 5 receives signals in the mid-to-high frequency range (above a predetermined frequency band). In other words, the dynamic speaker 5 is for mid-to-high frequency use. The dynamic speaker 5 is a speaker that utilizes air conduction. The adjustment mechanism 6 (first adjustment mechanism) allows the position of the housing 51 (second housing) that houses the dynamic speaker 5 to be adjusted relative to the housing that forms the temple 22 (first housing) that houses the bone conduction speaker 4. Specifically, the adjustment mechanism 6 rotatably supports the housing 51 that houses the dynamic speaker 5 relative to the housing that forms the temple 22.

[0040] Figure 1 shows the dynamic speaker 5 in a state where it is not in use, in other words, the housing 51 containing the dynamic speaker 5 in its installed state. In this state, the longitudinal direction of the housing 51 and the extending direction of the temple 22 are approximately the same. In other words, the housing 51 and the temple 22 are parallel. When a user uses the audio glasses 1 in the state shown in Figure 1, the user will hear sound through the bone conduction speaker 4. Figure 3 shows the audio glasses 1 in the state shown in Figure 1 with a user wearing them.

[0041] Figure 2 shows the state in which the dynamic speaker 5 is in use. As shown in Figures 1 and 2, the housing 51 is rotated by the adjustment mechanism 6 from the state shown in Figure 1 in the direction indicated by the dashed arrow in Figure 1 (counterclockwise) to the position shown in Figure 2. When the user uses the audio glasses 1 in the state shown in Figure 2, the user will hear sound through the bone conduction speaker 4 and the dynamic speaker 5. Figure 4 shows the state in which the user is wearing the audio glasses 1 in the state shown in Figure 2. Hereinafter, the position of the dynamic speaker 5 (housing 51) (shown in Figures 2 and 4) in which the dynamic speaker 5 is used and the user hears sound through the bone conduction speaker 4 and the dynamic speaker 5 will be called the "hybrid specification position" (second position). The position of the dynamic speaker 5 (housing 51) (shown in Figures 1 and 3) in which the dynamic speaker 5 is not used, that is, the user hears sound through the bone conduction speaker 4 will be called the "storage position" (first position).

[0042] As described above, the dynamic speaker 5 is rotatable between a storage position (see Figures 1 and 3) and a hybrid configuration position (Figures 2 and 4) by an adjustment mechanism 6. The adjustment mechanism 6 includes, for example, a bolt 61, a bolt hole (not shown) provided in the housing 51 and the housing forming the temple 22, and a compression coil spring (not shown). The bolt 61 is inserted through the bolt hole, and the bolt hole provided in the housing forming the temple 22 is provided with threads and grooves corresponding to the bolt. The bolt 61 is fixed, and the biasing force of the compression coil spring makes the dynamic speaker 5 (housing 51) rotatable relative to the housing forming the temple 22.

[0043] Figure 5 is a view from above of the area around the user's ear in Figure 4. In the hybrid configuration, the dynamic speaker 5 is positioned opposite the ear, and the housing 51 housing the dynamic speaker 5 is attached to the housing that forms the temple 22. More specifically, in the hybrid configuration, the dynamic speaker 5 is positioned coaxially with the auricle (especially the concha), and the housing 51 housing the dynamic speaker 5 is attached to the housing that forms the temple 22. The auricle (especially the concha) acts as a sound collector. In the hybrid configuration, because the dynamic speaker 5 is coaxial with the auricle (especially the concha), the sound emitted from the dynamic speaker 5 is faithfully delivered to the eardrum, ensuring a sufficient sound pressure level even in noisy environments and reducing sound leakage to the surroundings.

[0044] Here, the dynamic speaker 5 is composed of different materials for the diaphragm and the edge. For example, the diaphragm material could be carbon paper, cellulose nanofiber, magnesium, aluminum, titanium, etc. The edge material could be, for example, urethane elastomer (TPU), polymer films such as PEI-PEEK, or laminates thereof. Of course, the materials for the diaphragm and edge are not limited to these.

[0045] In this embodiment, the audio glasses 1 employ two devices with different sound transmission methods: a bone conduction speaker 4 that utilizes bone conduction and a dynamic speaker 5 that utilizes air conduction, enabling them to handle various situations. For example, when the audio glasses 1 are used as an audio device for listening to music, the adjustment mechanism 6 allows the dynamic speaker 5 to be adjusted to the optimal position, so that the bone conduction speaker 4 and the dynamic speaker 5 complement each other's frequency ranges, resulting in a sufficient playback range. Furthermore, when the audio glasses 1 are worn by the user, the dynamic speaker 5 is coaxial with the auricle (especially the concha) which acts as a sound collector in the hybrid configuration. This allows the radiated sound to be faithfully delivered to the eardrum, ensuring a sufficient sound pressure level even in noisy environments and reducing sound leakage to the surroundings.

[0046] Furthermore, when the housing 51 containing the dynamic speaker 5 is in its retracted state, the audio glasses 1 can also be used in a configuration where only the bone conduction speaker 4 is used, making it applicable to users with hearing impairments. In addition, when people work in noisy environments such as construction sites with noise levels exceeding 90 dB, communication between workers is possible even if earplugs are required, making it useful as a communication tool in noisy environments. Moreover, even when using the bone conduction speaker 4, the lack of sound pressure is resolved when the user wears earplugs to block out external noise.

[0047] Therefore, the device configuration of this embodiment provides a sufficient playback bandwidth for audio devices. Furthermore, it is also adequate for industrial safety applications in noisy environments, eliminating the need for special equalization adjustments on the amplifier side and allowing for the provision of an inexpensive product.

[0048] As described above, in this embodiment, the audio glasses 1 are equipped with a bone conduction speaker 4 that utilizes bone conduction and a dynamic speaker 5 that utilizes air conduction. Furthermore, the adjustment mechanism 6 allows the position of the housing 51 on which the dynamic speaker 5 is housed to be adjusted. For example, when the audio glasses 1 are used as an audio device for playing music, the position of the housing 51 is adjusted by the adjustment mechanism 6, and by using the bone conduction speaker 4 and the dynamic speaker 5, each device complements the respective frequency bands, thus providing a sufficient playback bandwidth.

[0049] Furthermore, for example, in noisy environments, the adjustment mechanism 6 allows the position of the housing 51 to be adjusted, and by using only the bone conduction speaker 4, the user can hear sound through bone conduction. If earplugs are worn, external noise is blocked out, and the lack of sound pressure is resolved. This ensures a sufficient sound pressure level.

[0050] Furthermore, even when used as an audio device, it provides a sufficient frequency range and ensures adequate sound pressure levels even in noisy environments, eliminating the need for equalization adjustments on the amplifier side.

[0051] Furthermore, since there is no need to include an equalization adjustment function on the amplifier side, the product can be made inexpensive.

[0052] (Second Embodiment) Figure 6 is a perspective view showing audio glasses 101 according to a second embodiment of the present invention. In the first embodiment, the two bone conduction speakers 4 are each provided inside the housing (first housing) that forms the temples 22. In the second embodiment, the two bone conduction speakers 104 (first speakers) are each provided inside a housing 141 (third housing) that is separate from the housing that forms the temples 122. The audio glasses 101 also includes an adjustment mechanism 107 (second adjustment mechanism) that allows the position of the housing 141 to be adjusted relative to the housing that forms the temples 122. The dynamic speaker 105 (second speaker) is provided in a housing 151 (second housing) that is separate from the housing that forms the temples 22 and the housing 141. Furthermore, the audio glasses 101 includes an adjustment mechanism 108 (third adjustment mechanism) that allows the position of the housing 151 to be adjusted relative to the housing 141.

[0053] The points described above are the main differences between the audio glasses 1 according to the first embodiment and the audio glasses 101 according to the second embodiment. In describing the second embodiment, the same points as in the first embodiment will be omitted from the explanation, and the differences will be described mainly.

[0054] The audio glasses 101 include a frame 102, lenses 103, bone conduction speakers 104, dynamic speakers 105, adjustment mechanisms 107, 108, etc. The frame 102, lenses 103, bone conduction speakers 104, and dynamic speakers 105 according to the second embodiment correspond to the frame 2, lenses 3, bone conduction speakers 4, and dynamic speakers 5 according to the first embodiment, respectively. The frame 102 has a rim 121, temples 122, bridge 123, etc. The rim 121, temples 122, and bridge 123 according to the second embodiment correspond to the rim 21, temples 22, and bridge 23 according to the first embodiment, respectively. The frame 102 and lenses 103 according to the second embodiment are the same as the frame 2 and lenses 3 according to the first embodiment, so their description is omitted.

[0055] The two bone conduction speakers 104 (first speakers) are housed inside a separate housing 141 (third housing) from the housing (first housing) that forms the temple 122. The bone conduction speakers 104 are, for example, dynamic type vibrators with a diameter of Φ16 mm. Low-frequency signals (below a predetermined frequency band) are input to the bone conduction speakers 104. In other words, the bone conduction speakers 104 are for low frequencies. Needless to say, the bone conduction speakers 104 are speakers that utilize bone conduction. Furthermore, as described above, in this embodiment, the bone conduction speakers 104 are dynamic type vibrators. However, the bone conduction speakers 104 are not limited to this and may be magnetostrictive actuators.

[0056] The adjustment mechanism 107 (second adjustment mechanism) allows the position of the housing 141, which houses the bone conduction speaker 104, to be adjusted relative to the housing that forms the temple 122. Specifically, the adjustment mechanism 107 rotatably supports the housing 141, which houses the bone conduction speaker 104, relative to the housing that forms the temple 122.

[0057] The adjustment mechanism 107 includes, for example, a bolt 171, a bolt hole (not shown) provided in the housing 141 and the housing forming the temple 122, and a compression coil spring (not shown). The bolt 171 is inserted through the bolt hole, and the bolt hole provided in the housing forming the temple 122 is provided with threads and grooves corresponding to the bolt. The bolt 171 is fixed, and the biasing force of the compression coil spring causes the bone conduction speaker 104 (housing 141) to rotate relative to the housing forming the temple 122.

[0058] The dynamic speaker 5 (second speaker) is located inside the housing that forms the temple 122 and a separate housing 151 (second housing) from housing 141. The dynamic speaker 5 is, for example, a micro-driver with a diameter of Φ14 mm. The dynamic speaker 105 receives signals in the mid-to-high frequency range (above a predetermined frequency band). In other words, the dynamic speaker 105 is for the mid-to-high frequency range. The dynamic speaker 5 is a speaker that utilizes air conduction.

[0059] The adjustment mechanism 108 (third adjustment mechanism) allows the position of the housing 151 housing the dynamic speaker 105 to be adjusted relative to the housing 141 housing the bone conduction speaker 104. Specifically, the adjustment mechanism 108 rotatably supports the housing 151 housing the dynamic speaker 105 relative to the housing 141 housing the bone conduction speaker 104.

[0060] The adjustment mechanism 108 includes, for example, a bolt 181, bolt holes (not shown) provided in the housing 141 and housing 151, and a compression coil spring (not shown). The bolt 181 is inserted through the bolt hole, and the bolt hole provided in housing 141 is provided with threads and grooves corresponding to the bolt. The bolt 181 is fixed, and the biasing force of the compression coil spring makes the dynamic speaker 105 (housing 151) rotatable relative to housing 141.

[0061] Similar to the first embodiment, the dynamic speaker 105 is housed in a housing 151 that is attached to the housing forming the temple 22, so that it faces the ear at the usage position of the dynamic speaker 5 (see Figure 5). Also, similar to the first embodiment, the dynamic speaker 105 is composed of different materials, for example, the diaphragm and the edge.

[0062] Figure 7 shows the audio glasses 101 being worn by a user. In the state shown in Figure 7, the bone conduction speaker 104 and the dynamic speaker 105 are in use. At this time, the bone conduction speaker 104 is located in the cartilage conduction area next to the tragus. The cartilage conduction area is located in the position indicated by the dashed circle in Figure 8.

[0063] As described above, in the second embodiment, the adjustment mechanism 107 allows the position of the housing 141 on which the bone conduction speaker 104 is installed to be adjusted. Therefore, by adjusting the position of the housing 141 with the adjustment mechanism 107, the bone conduction speaker 104 can be adjusted, for example, to the cartilage conduction area next to the tragus, making it possible to hear sound sufficiently even through bone conduction.

[0064] Furthermore, in the first and second embodiments, the audio glasses 1 and 101 each include bone conduction speakers 4 and 104 that receive signals below a predetermined frequency band, and dynamic speakers 5 and 105 that receive signals above a predetermined frequency band. As a result, each device complements its own frequency band, allowing for a sufficient playback bandwidth to be obtained.

[0065] As described above, in the first and second embodiments, bone conduction speakers 4 and 104 are used for low frequencies, and dynamic speakers 5 and 105 are used for mid-to-high frequencies, utilizing air conduction. By using devices with different sound transmission methods in this way, it is possible to accommodate various situations. In the first and second embodiments, audio glasses 1 and 101 equipped with sound reproduction functions are described. In addition to these, when used for audio and gaming purposes in smart glasses equipped with microphones and voice recognition functions, or AR / VR glasses that reproduce images on the lenses, cartilage conduction is utilized in the bone conduction speakers 4 and 104, and the dynamic speakers 5 and 105 utilizing air conduction are adjusted to the optimal position. As a result, each device complements its respective frequency band, providing a sufficient playback bandwidth.

[0066] Furthermore, because the dynamic speakers 5 and 105 are coaxial with the auricle (especially the concha), which acts as a sound collector, they can faithfully deliver radiated sound to the eardrum, ensuring a sufficient sound pressure level even in noisy outdoor environments, and reducing sound leakage to the surroundings.

[0067] Furthermore, because Audio Glasses 1 and 101 do not use magnetic circuits or voice coils, they can be made thinner and lighter, and users can wear Audio Glasses 1 and 101 for extended periods without experiencing pain in the area where they are worn.

[0068] Furthermore, in other situations, it can be used solely as a bone conduction speaker, making it suitable for people with hearing impairments. Also, if a user (worker) works in a noisy environment such as a construction site with noise levels exceeding 90 dB, even if earplugs are required, communication between workers is possible, making it a valuable communication tool in noisy environments. In the case of bone conduction, the user can block out external noise by wearing earplugs, eliminating any sound pressure deficiency. Therefore, the device configuration of this embodiment provides a sufficient frequency response for audio and gaming applications. Moreover, it is also adequate for industrial safety applications in noisy environments, eliminating the need for special equalization adjustments on the amplifier side and allowing for the provision of an inexpensive product.

[0069] Although embodiments of the present invention have been described above, the embodiments to which the present invention can be applied are not limited to those described above, and modifications can be made as appropriate without departing from the spirit of the invention, as illustrated below.

[0070] In the embodiments described above, the audio glasses 1, 101 are equipped with two types of devices with different sound transmission methods: bone conduction speakers 4, 104, 204 and dynamic speakers 5, 105. In addition, they may further be equipped with devices that have different sound transmission methods from the bone conduction speakers 4, 104 and dynamic speakers 5, 105.

[0071] In the first embodiment described above, the housing 51 housing the dynamic speaker 5 moves between the storage position and the hybrid configuration position by rotating relative to the housing forming the temple 22. However, the housing 51 may move between the storage position and the hybrid configuration position by a movement other than rotation. In the second embodiment, the housing 141 housing the bone conduction speaker 104 may move relative to the temple 122 by a movement other than rotation. In addition, the housing 151 housing the dynamic speaker 105 may move relative to the housing 141 by a movement other than rotation. [Industrial applicability]

[0072] This invention can be suitably adopted in electronic devices. [Explanation of Symbols]

[0073] 1. 101 Audio Glasses (Electronic Devices) 2,102 frames 21, 121 rim 22, 122 Temple 23, 123 Bridge 3,103 lens 4. 104 Bone conduction speaker (first speaker) 5. 105 Dynamic Speaker (Second Speaker) 51, 151 cabinet (second cabinet) 6 Adjustment mechanism (1st adjustment mechanism) 61 volts 107 Adjustment mechanism (second adjustment mechanism) 171 volts 108 Adjustment mechanism (3rd adjustment mechanism)

Claims

1. A frame having temples; a bone conduction speaker provided inside a first housing forming the temple; a dynamic speaker provided inside a second housing separate from the first housing; a first adjustment mechanism that enables adjustment of a position of the second housing relative to the first housing; An electronic device comprising:

2. 2 . The electronic device according to claim 1 , wherein the second housing is movable between a first position where the dynamic speaker is not used and a second position where the dynamic speaker is used.

3. 3. The electronic device according to claim 2, wherein the second housing is attached to the first housing such that, when worn, in the second position, the dynamic speaker is coaxial with the auricle.

4. 4. The electronic device according to claim 2, wherein the second housing is attached to the first housing such that, when worn, the dynamic speaker faces an ear in the second position.

5. 5. The electronic device according to claim 1, wherein the second housing is rotatable with respect to the first housing by the first adjustment mechanism.

6. 6. The electronic device according to claim 1, wherein the first adjustment mechanism supports the second housing so as to be rotatable relative to the first housing.

7. The electronic device according to any one of claims 1 to 6, characterized in that the first adjustment mechanism has a bolt, a bolt hole provided in the first housing and the second housing, and a compression coil spring.

8. 8. The electronic device according to claim 1, wherein the bone conduction speaker is a dynamic type vibrator.

9. 8. The electronic device according to claim 1, wherein the bone conduction speaker is a giant magnetostrictive actuator.

10. 10. The electronic device according to claim 1, wherein the dynamic speaker is a micro-driver.

11. 11. The electronic device according to claim 1, wherein in the dynamic speaker, a material of the diaphragm and a material of the edge are different.

12. 12. The electronic device according to claim 1, wherein in the dynamic speaker, the material of the diaphragm is one of carbon paper, cellulose nanofiber, magnesium, aluminum, and titanium.

13. 13. The electronic device according to claim 1, wherein in the dynamic speaker, the material of the edge is a polymer film system selected from the group consisting of urethane-based elastomer, PEI, and PEEK, or a laminate thereof.

14. 5. The electronic device according to claim 2, wherein in the first position, the second housing is substantially parallel to the temple.

15. Further equipped with a lens, 15. The electronic device according to claim 1, wherein the frame holds the lens.

16. A frame having temples; a first bone conduction speaker provided on the temple and receiving a signal having a frequency band equal to or lower than a predetermined frequency band; a second speaker to which a signal having a frequency equal to or higher than a predetermined frequency band is input; An electronic device comprising:

17. A frame having temples; a first bone conduction speaker provided inside a third housing separate from the first housing forming the temple; A second speaker; a second adjustment mechanism that enables adjustment of a position of the third housing relative to the first housing; An electronic device comprising:

18. The electronic device according to claim 17, wherein the second speaker is a dynamic speaker.

19. The first speaker is provided in a first housing that forms the temple, the second speaker is provided in a second housing separate from the first housing and the third housing, 20. The electronic device according to claim 18, further comprising a third adjustment mechanism that enables adjustment of a position of the second housing relative to the third housing.

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