Display device

• US 5,751,476 A
• Filed: 02/20/1996
• Issued: 05/12/1998
• Est. Priority Date: 02/28/1995
• Status: Expired due to Term

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Matsui, Takeshi, Kawamura, Akira
• Primary Examiner(s): Font, Frank G.
• Assistant Examiner(s): Robbins, Thomas
• Application Number:
  US08/603,718
• Time in Patent Office: 812 Days
• Field of Search: 359/411, 359/417, 359/418, 359/473, 359/630
• US Class Current: 359/411
• CPC Class Codes: G02B 27/0176 characterised by mechanical features

Abstract

A display device to be worn by the user on his or her head comprising a pair of left and right image display members which are arranged on a frame to be put on a head of a user in a manner enabling them to be moved in a direction toward or away from each other; a pair of left and right lens members on the frame which show virtual images of the images displayed by the image display members to the user, the light axes of which being made substantially parallel to each other at a position on a light path extending from the left image display member to the left eye of the user and at a position on a light path extending from the right image display member to the right eye of the user, in a manner enabling them to be moved in a direction toward or away from each other; and a link mechanism member for variably adjusting the distance in the horizontal direction between the lens members so to adjust the distance in the horizontal direction between the image display members linked with the adjustment of the distance between the lens members.

Claims

1. A method of adjusting a display device comprising the steps of:

adjusting a horizontal distance between first and second lens members; and

simultaneously adjusting a horizontal distance between first and second image display members in synchronization with the adjustment of the distance between first and second lens members.

2. The method of claim 1, further comprising the step of adjusting a vertical position of at least one image display member.

3. A display device comprising:

(a) left and right image display members arranged on a frame to be put on a head of a user;

said left and right image display members being movably mounted for movement in a direction toward or away from each other;

(b) left and right lens members arranged on the frame,

the left and right lens members being movably mounted for movement in a direction toward or away from each other; and

(c) a link member, connected between the lens members and the image display members

linking adjustment of the distance in the horizontal direction between the image display members with adjustment of the distance between the lens members.

4. A display device as set forth in claim 3, wherein said link mechanism member includes an elastic member for giving a load to the movement of the lens members and the image display members with respect to the frame.

5. A display device as set forth in claim 3, wherein said link member variably adjusts the distance in the horizontal direction between the image display members and the distances to the image display members and the lens members with respect to the distance in the horizontal direction between the lens members, thereby to adjust an angle formed by the light path extending from the left image display member to the left eye of the user and the light path extending from the right image display member to the right eye of the user and the distances from the eyes of the user to virtual images displayed by the image display members.

6. A display device as set forth in claim 5, wherein said link mechanism member includes an elastic member giving a load to the lens members and the image display members with respect to the frame.