Display device

• US 20070057867A1
• Filed: 09/15/2006
• Published: 03/15/2007
• Est. Priority Date: 09/15/2005
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Abe, Kensaku, Mizuuchi, Takayuki
• Granted Patent: US 7,786,954 B2
• Time in Patent Office: Days
• US Class Current: 345/8
• CPC Class Codes: G02B 27/0176 characterised by mechanical features
• CPC Class Codes: G02B 7/12 Adjusting pupillary distance of binocular pairs

Abstract

A head-mount type display device has a first display unit for left eye, a second display unit for right eye, a guide that guides the first and second display units to slide them in a longitudinal way, and an adjustment mechanism that adjust a distance between the first and second display units. The adjustment mechanism includes a revolving member having a shaft, a left-side arm having a first end that rotatively connects the first display unit and a second end that rotatively connects the revolving member, and a right-side arm having a third end that rotatively connects the second display unit and a fourth end that rotatively connects the revolving member. When the revolving member revolves around the shaft, the first and second display units slide by a same distance from the shaft in the longitudinal way along the guide.

Claims

1. A head-mount type display device that mounts on a head of a person to operate, said device comprising:

a first display unit for left eye of the person to irradiate an enlarged image to the left eye thereof;

a second display unit for right eye of the person to irradiate the enlarged image to the right eye thereof;

a guide that guides the first and second display units to slide them in a longitudinal way; and

an adjustment mechanism that adjusts a distance between the first and second display units,

wherein the adjustment mechanism includes;

a revolving member having a shaft, which is positioned between the first and second display units, and revolving around the shaft;

a left-side arm having a first end that rotatively connects the first display unit and a second end that rotatively connects the revolving member at a first position therein from which the shaft is away by a predetermined distance; and

a right-side arm having a third end that rotatively connects the second display unit and a fourth end that rotatively connects the revolving member at a second position therein from which the shaft is away by the predetermined distance, said second position facing the first position; and

wherein when the revolving member revolves around the shaft, the first and second display units slide by a same distance from the shaft in the longitudinal way along the guide.

2. The head-mount type display device according to claim 1,

wherein the left-side arm includes a first left-side sub-arm and a second left-side sub-arm, the first left-side sub-arm extending in the longitudinal way and having the first end that is fixed to the first display unit and a fifth end, the second left-side sub-arm having the second end that rotatively connects the revolving member at the first position therein and a sixth end, and the fifth end of the first left-side sub-arm rotatively connecting the sixth end of the second left-side sub-arm;

and

wherein the right-side arm includes a first right-side sub-arm and a second right-side sub-arm, the first right-side sub-arm extending in the longitudinal way and having the third end that is fixed to the second display unit and a seventh end, the second right-side sub-arm having the fourth end that rotatively connects the revolving member at the second position therein and a eighth end, and the seventh end of the first right-side sub-arm connecting the eighth end of the second right-side sub-arm.

3. The head-mount type display device according to claim 1, wherein the revolving member has any one of a circular shape and an equilateral polygonal shape.