Output device and wearable display

• US 8,593,374 B2
• Filed: 09/13/2007
• Issued: 11/26/2013
• Est. Priority Date: 09/19/2006
• Status: Active Grant

• Current Assignee: Nikon Corporation
• Original Assignee: Nikon Corporation
• Inventors: Kato, Shigeru, Otsuki, Masaki, Chiaki, Kenzo, Isagi, Kazuou
• Primary Examiner(s): Mengistu, Amare
• Assistant Examiner(s): Nadkarni, Sarvesh J
• Application Number:
  US12/309,976
• Publication Number:
  US 20090195479A1
• Time in Patent Office: 2,266 Days
• Field of Search: 345 7- 9
• US Class Current: 345/8
• CPC Class Codes: H01Q 1/273 Adaptation for carrying or wearing by persons or animals
• CPC Class Codes: H01Q 1/44 using equipment having another main function to serve additionally as an antenna , e.g. means for giving an antenna an aesthetic aspectH01Q1/27 - H01Q1/34 take precedence
• CPC Class Codes: H04R 1/028 associated with devices performing functions other than acoustics, e.g. electric candles
• CPC Class Codes: H04R 1/1008 Earpieces of the supra-aural or circum-aural type
• CPC Class Codes: H04R 2420/07 Applications of wireless loudspeakers or wireless microphones
• CPC Class Codes: H04R 5/0335 Earpiece support, e.g. headbands or neckrests for monophonic headphones H04R1/105

Abstract

A headphone includes a pad which is brought into contact with a human head, an enclosure which outputs an audio, and a dome as means for adjusting quality of the audio output by resonating or absorbing the sound wave emitted from the enclosure. The dome has no parts other than those used for absorbing and reflecting audio and is almost hollow. In the dome is arranged a circuit substrate by using a circuit support part having a shape not blocking the air flowing in the dome. Such a circuit substrate is also built in the other headphone. The circuit substrates arranged in the dome of the headphone are connected by a cable arranged inside a head band or an FPC for transmission of a signal and power supply. Thus, it is possible to provide an output device which can solve the problem of the dimensions for containing operation processing devices and the problem of heat dissipation.

Claims

1. A wearable display which is used while worn on a head, said wearable display supplying sound and video,

the wearable display comprising:

right and left ear pads which have a contact with head side surfaces;

right and left retaining units which retain said ear pads, respectively;

a head band unit which is coupled to said retaining units to impart a biasing force such that said ear pads are pressed against said right and left head side surfaces;

a display unit arm which is coupled to one of said retaining units with a turning unit interposed therebetween;

a display unit which is coupled to a leading end portion of said display unit arm, an electric circuit being incorporated in the one of said retaining units coupled to said display unit arm,

wherein said turning unit which couples said display unit arm and the one of said retaining units is made of a material having high thermal conductivity, and

said display unit arm is made of a material having high thermal conductivity and high radiation performance; and

heat generated in the electric circuit is radiated from the surfaces of said display unit arm, and

a material having a thermal conductivity of 10 W/m·

K or more is used for said turning unit which couples said display unit arm and the one of said retaining units and said display unit arm.

2. The wearable display as in claim 1, wherein a radiation fin or a radiation hole is provided in a radiation surface.

3. A wearable display which is used while worn on a head, said wearable display supplying sound and video,

the wearable display comprising:

right and left ear pads which have a contact with head side surfaces;

right and left retaining units which retain said ear pads, respectively, an electric circuit being incorporated in at least one of said retaining units;

a head band unit which is coupled to said retaining units to impart a biasing force such that said ear pads are pressed against said right and left head side surfaces;

a display unit arm which is coupled to one of said retaining units with a turning unit interposed therebetween;

a display unit which is coupled to a leading end portion of said display unit arm,

wherein a top surface portion of said head band unit in wearing said wearable display is made of a material having high thermal conductivity and high radiation performance, and

a heat transfer path is formed from the retaining unit in which the electric circuit is incorporated to said top surface portion of said head band unit in wearing said wearable display;

heat generated in the electric circuit is radiated from said top surface portion of said head band unit in wearing said wearable display, and

a material having a thermal conductivity of 10 W/m·

K or more is used for said top surface portion of said head band unit in wearing said wearable display.

6. The wearable display according to claim 3, wherein a bottom surface portion of said head band unit in wearing said wearable display is made of a heat insulating material.

4. A wearable display which is used while worn on a head, said wearable display supplying sound and video,

the wearable display comprising:

right and left ear pads which have a contact with head side surfaces;

right and left retaining units which retain said ear pads, respectively;

a head band unit which couples said retaining units to impart a biasing force such that said ear pads are pressed against said right and left head side surfaces, an electric circuit being incorporated in said head band unit;

a display unit arm which is coupled to one of said retaining units with a turning unit interposed therebetween;

a display unit which is coupled to a leading end portion of said display unit arm,

wherein a top surface portion of said head band unit in wearing said wearable display is made of a material having high thermal conductivity and high radiation performance;

heat generated in the electric circuit is radiated from said top surface portion of said head band unit in wearing said wearable display; and

a material having a thermal conductivity of 10 W/m·

K or more is used for said top surface portion of said head band unit in wearing said wearable display.

5. The wearable display according to claim 4, wherein a board on which said electric circuit is mounted and said top surface portion are jointed by a heat transfer path.

7. An output device which is used while worn on a head, said output device supplying at least one of sound and video,

the output device comprising:

right and left ear pads which have a contact with head side surfaces;

right and left retaining units which retain said ear pads respectively, an electric circuit being incorporated in at least one of said retaining units;

a head band unit which couples said retaining units to impart a biasing force such that said ear pads are pressed against said right and left head side surfaces,

wherein at least part of a region which has a contact with at least the head of a head side of a chassis of the one of said retaining units in which the electric circuit is incorporated is formed by a heat insulating member, and

an opposite portion to said head side of said chassis constitutes a radiation surface;

heat generated in the electric circuit is radiated from the radiation surface located on the opposite portion to said head side of said chassis; and

a material having a thermal conductivity of 10 W/m·

K or more is used for the radiation surface located on the opposite portion to said head side of said chassis.

8. An output device which is used while worn on a head, said output device supplying at least one of sound and video,

the output device comprising:

right and left ear pads which have a contact with head side surfaces;

right and left retaining units which retain said ear pads respectively, an electric circuit being incorporated in at least one of said retaining units;

a head band unit which couples said retaining units to impart a biasing force such that said ear pads are pressed against said right and left head side surfaces,

wherein a heat insulating member is bonded to at least part of a region which has a contact with at least the head of a head side of a chassis of the one of said retaining units in which the electric circuit is incorporated, and

an opposite portion to said head side of said chassis constitutes a radiation surface;

heat generated in the electric circuit is radiated from the radiation surface located on the opposite portion to said head side of said chassis; and

a material having a thermal conductivity of 10 W/m·

K or more is used for the radiation surface located on the opposite portion to said head side of said chassis.