Abstract: An earphone includes an audio transmitter, a housing, a sound passage pipe, a radiator, and a light receiver. The audio transmitter transmits sound. The housing has an internal space for containing the audio transmitter. The sound passage pipe guides sound produced at the audio transmitter into an external auditory canal. The radiator radiates light into the external auditory canal. The light receiver is disposed in the internal space of the housing. The light receiver converts the light into a signal, the light having been reflected off the external auditory canal and passed through an internal space of the sound passage pipe. The housing, the sound passage pipe, and the radiator are disposed in this order.

Abstract: When sound signals are input to a vibration driver through signal wires, the vibration driver converts the sound signals into mechanical vibrations. A second elastic member transmits the mechanical vibrations of the vibration driver to a user. On the other hand, air vibrations are generated by the vibration driver in a space formed by the vibration driver and a first elastic member. The air vibrations are converted into mechanical vibrations by the first elastic member, and are transmitted to the second elastic member. The second elastic member also transmits the mechanical vibrations transmitted from the first elastic member, to the user.

Abstract: An earphone includes an audio transmitter, a housing, a sound passage pipe, a radiator, and a light receiver. The audio transmitter transmits sound. The housing has an internal space for containing the audio transmitter. The sound passage pipe guides sound produced at the audio transmitter into an external auditory canal. The radiator radiates light into the external auditory canal. The light receiver is disposed in the internal space of the housing. The light receiver converts the light into a signal, the light having been reflected off the external auditory canal and passed through an internal space of the sound passage pipe. The housing, the sound passage pipe, and the radiator are disposed in this order.

Abstract: An earphone includes an audio transmitter, a housing, a sound passage pipe, a radiator, and a light receiver. The audio transmitter transmits sound. The housing has an internal space for containing the audio transmitter. The sound passage pipe guides sound produced at the audio transmitter into an external auditory canal. The radiator radiates light into the external auditory canal. The light receiver is disposed in the internal space of the housing. The light receiver converts the light into a signal, the light having been reflected off the external auditory canal and passed through an internal space of the sound passage pipe. The housing, the sound passage pipe, and the radiator are disposed in this order.

Abstract: An earphone includes an audio transmitter, a housing, a sound passage pipe, a radiator, and a light receiver. The audio transmitter transmits sound. The housing has an internal space for containing the audio transmitter. The sound passage pipe guides sound produced at the audio transmitter into an external auditory canal. The radiator radiates light into the external auditory canal. The light receiver is disposed in the internal space of the housing. The light receiver converts the light into a signal, the light having been reflected off the external auditory canal and passed through an internal space of the sound passage pipe. The housing, the sound passage pipe, and the radiator are disposed in this order.

Abstract: A bone conduction speaker includes a vibration driver configured to generate mechanical vibrations and air vibrations from an audio signal, a first elastic member configured to cover a portion of the vibration driver to form a space, and convert the air vibrations emitted by the vibration driver into the space, into mechanical vibrations, a second elastic member configured to be in contact with the vibration driver, and transfer the mechanical vibrations generated by the vibration driver and the mechanical vibrations received from the first elastic member, to a user, and an adjustment screw configured to act on the first elastic member to adjust at least one of the volume of the space and the distance between vibration nodes of the first elastic member.

Abstract: An interchangeable lens including a focus lens for collecting subject light, an imaging sensor operable to generate an image signal based on the subject light, a shutter device that is arranged between the interchangeable lens and the imaging sensor and includes a first curtain and a second curtain, a pulse counter operable to detect positions of the first curtain and the second curtain, and a body controller operable to start capturing of a signal from the imaging sensor based on the positions of the first curtain and the second curtain detected by the pulse counter are provided.

Abstract: A closed-back headphone includes a housing (111b) and an ear pad (111a). The housing (111b) includes a speaker unit. The ear pad (111a) is mounted on the housing (111b) and is a ring-shaped cushion surrounding an ear of a user (401). The ear pad (111a) includes an upper part (P1) for covering an upper portion of the ear, and a lower part (P2). The upper part (P1) is softer than the lower part (P2).

Abstract: When sound signals are transmitted to a coil in a vibration driver, a magnet vibrates according to change in magnetic field caused by the coil. A diaphragm vibrates up and down together with the coil, due to magnetic effects of the coil with respect to the magnet. A vibration plate which closes an opening of the vibration driver converts air vibrations generated by the up and down vibrations of the diaphragm into mechanical vibrations, and transmits the mechanical vibrations as high frequency vibrations. A housing which accommodates the magnet transmits the vibrations of the magnet to the outside via a spring as low frequency vibrations.

Abstract: When sound signals are input to a vibration driver through signal wires, the vibration driver converts the sound signals into mechanical vibrations. A second elastic member transmits the mechanical vibrations of the vibration driver to a user. On the other hand, air vibrations are generated by the vibration driver in a space formed by the vibration driver and a first elastic member. The air vibrations are converted into mechanical vibrations by the first elastic member, and are transmitted to the second elastic member. The second elastic member also transmits the mechanical vibrations transmitted from the first elastic member, to the user.

Abstract: An interchangeable lens including a focus lens 104 for collecting subject light, an imaging sensor 202 operable to generate an image signal based on the subject light, a shutter device 220 that is arranged between the interchangeable lens 100 and the imaging sensor 202 and includes a first curtain 225 and a second curtain 226, a pulse counter 227 operable to detect positions of the first curtain 225 and the second curtain 226, and a body controller 203 operable to start capturing of a signal from the imaging sensor 202 based on the positions of the first curtain and the second curtain 226 detected by the pulse counter 227 are provided.

Abstract: The electronic viewfinder 3 includes a reflective type liquid crystal display 315, a finder optical system 32, and a transmission plate 34 that transmits a part of the optical image signal collected by the finder optical system 32 therethrough and reflects at least a part of a remaining optical image signal. The reflective type liquid crystal display 315 includes a light source 311 that emits light, a liquid crystal plate 315, a reflecting plate 316, and a polarizing plate 314. The transmission plate 34 is disposed to be inclined in a direction opposite to a inclined direction of the polarizing plate such that a transmission plane 341 thereof is not perpendicular to the optical axis of the finder optical system 32.

Abstract: The electronic viewfinder 3 includes a reflective type liquid crystal display 315, a finder optical system 32, and a transmission plate 34 that transmits a part of the optical image signal collected by the finder optical system 32 therethrough and reflects at least a part of a remaining optical image signal. The reflective type liquid crystal display 315 includes a light source 311 that emits light, a liquid crystal plate 315, a reflecting plate 316, and a polarizing plate 314. The transmission plate 34 is disposed to be inclined in a direction opposite to a inclined direction of the polarizing plate such that a transmission plane 341 thereof is not perpendicular to the optical axis of the finder optical system 32.

Abstract: The electronic viewfinder 3 includes a reflective type liquid crystal display 315, a finder optical system 32, and a transmission plate 34 that transmits a part of the optical image signal collected by the finder optical system 32 therethrough and reflects at least a part of a remaining optical image signal. The reflective type liquid crystal display 315 includes a light source 311 that emits light, a liquid crystal plate 315, a reflecting plate 316, and a polarizing plate 314. The transmission plate 34 is disposed to be inclined in a direction opposite to a inclined direction of the polarizing plate such that a transmission plane 341 thereof is not perpendicular to the optical axis of the finder optical system 32.

Abstract: An eyepiece lens system for an electronic viewfinder, usable to be disposed on an optical axis between a reflective LCD of the viewfinder and a last optical surface of the viewfinder, the eyepiece lens system comprising: a first lens having a positive refractive index; a second lens having a negative refractive index; and a third lens having a positive refractive index, wherein the first lens, the second lens, and the third lens are disposed in this order from a side of the LCD to a side of the last optical surface, satisfying the conditions: 18 mm<f1<20 mm, ?18 mm<f2<?16 mm, 18 mm<f3<20 mm, 19 mm<f<21 mm, and 0?HH?/f<+0.13 where f1 is a focal length of the first lens, f2 is a focal length of the second lens, f3 is a focal length of the third lens, f is a combined focal length of the first to the third lenses, and HH? is distance in an optical axis direction between a rear principal point H and a front principal point H?.

Abstract: An image pickup apparatus of the present invention includes a main body 1 incorporating an image pickup element, an operation part that is placed on the main body 1 and can be operated by a user, and a seventh surface 107 provided on the main body 1, on which, when the user takes a picture while holding the main body 1, the thumb of the hand holding the main body 1 can be left in a stand-by state. The operation part includes rotation operation parts that are placed in the vicinity of the seventh surface 107 and are rotatable, and the rotation operation parts are arranged so that at least a part of the same faces the seventh surface 107. With this, a movement amount of the fingers of the user is reduced, whereby the operability is improved.

Abstract: An eyepiece lens system for an electronic viewfinder, usable to be disposed on an optical axis between a reflective LCD of the viewfinder and a last optical surface of the viewfinder, the eyepiece lens system comprising: a first lens having a positive refractive index; a second lens having a negative refractive index; and a third lens having a positive refractive index, wherein the first lens, the second lens, and the third lens are disposed in this order from a side of the LCD to a side of the last optical surface, satisfying the conditions: 18 mm<f1<20 mm, ?18 mm<f2<?16 mm, 18 mm<f3<20 mm, 19 mm<f<21 mm, and 0?HH?/f<+0.13 where f1 is a focal length of the first lens, f2 is a focal length of the second lens, f3 is a focal length of the third lens, f is a combined focal length of the first to the third lenses, and HH? is distance in an optical axis direction between a rear principal point H and a front principal point H?.

Abstract: Disclosed in the present invention is a creation production support method, for enabling the easy production of a large amount of creative material, within a short period of time, while reducing the labor effort required of a creator, and an apparatus and a storage medium therefor. Specifically, creative element data for a pair composed of a creative element and an element index are stored in a database (4), and the element index is extracted from the database (4) and is placed in a reactor (9). From this, a set of correlated element indexes is obtained, and creative elements corresponding to element indexes that constitute this set are coupled together and output. Then, a creation is automatically generated, and 5W1H information, indicating the contents of a corresponding creative element, and sensory information received from the creative element are written in the element index.

Abstract: An image pickup apparatus of the present invention includes a main body 1 incorporating an image pickup element, an operation part that is placed on the main body 1 and can be operated by a user, and a seventh surface 107 provided on the main body 1, on which, when the user takes a picture while holding the main body 1, the thumb of the hand holding the main body 1 can be left in a stand-by state. The operation part includes rotation operation parts that are placed in the vicinity of the seventh surface 107 and are rotatable, and the rotation operation parts are arranged so that at least a part of the same faces the seventh surface 107. With this, a movement amount of the fingers of the user is reduced, whereby the operability is improved.