HEAD-MOUNTED DISPLAY DEVICE

• US 20180173017A1
• Filed: 06/16/2015
• Published: 06/21/2018
• Est. Priority Date: 06/16/2015
• Status: Active Grant

• Current Assignee: Maxell, Ltd.
• Original Assignee: Maxell, Ltd.
• Inventors: IMAGAWA, Seiji
• Granted Patent: US 10,877,298 B2
• Time in Patent Office: Days
• CPC Class Codes: G02B 2027/0138 comprising image capture systems, e.g. camera
• CPC Class Codes: G02B 2027/0156 with optionally usable elements
• CPC Class Codes: G02B 2027/0178 Eyeglass type eyeglass details G02C
• CPC Class Codes: G02B 2027/0181 Adaptation to the pilot/driver
• CPC Class Codes: G02B 27/0176 characterised by mechanical features
• CPC Class Codes: G02B 27/0179 Display position adjusting means not related to the information to be displayed
• CPC Class Codes: G02C 11/10 Electronic devices other than hearing aids

Abstract

A head-mounted display device 1 includes: an image display unit 2 that displays an image; arms 3a and 3b that support the image display unit; and attachment parts 4a and 4b that attach the arms to glasses 100. The arm is formed by a first arm 3a supporting the image display unit and a second arm 3b bonded to the attachment part 4b and includes: a first moving part 5 that can rotate the image display unit 2 with respect to the first arm 3a; and a second moving part 6 that can rotate the first arm 3a to be folded back with respect to the second arm 3b. Directions of a rotation axis of the first moving part 5 and a rotation axis of the second moving part 6 are approximately orthogonal to each other. Accordingly, the head-mounted display device 1 can be stored integrally with the glasses 100.

Claims

1. A head-mounted display device that is used with being attached to glasses, the head-mounted display device comprising:

an image display unit that displays an image;

an arm that supports the image display unit; and

an attachment part that attaches the arm to the glasses;

wherein the arm is formed by a first arm supporting the image display unit and a second arm bonded to the attachment part and includes;

a first moving part that can rotate the image display unit with respect to the first arm; and

a second moving part that can rotate the first arm to be folded back with respect to the second arm, and

wherein directions of a rotation axis of the first moving part and a rotation axis of the second moving part are approximately orthogonal to each other.

2. The head-mounted display device according to claim 1, further comprising a third moving part that can rotate the second arm with respect to the attachment part,

wherein the direction of the rotation axis of the second moving part and a direction of a rotation axis of the third moving part are approximately orthogonal to each other.

3. The head-mounted display device according to claim 1, wherein at least one of the first moving part and the second moving part rotates discretely at an interval of a predetermined angle, and the interval of the angle is different according to a rotation angle position.

4. The head-mounted display device according to claim 1, further comprising a mechanism that enables a rotation operation of the second moving part only in a case where the first moving part is in a predetermined rotation angle range.

5. The head-mounted display device according to claim 2, further comprising:

a mechanism that enables a rotation operation of the second moving part only in a case where the first moving part is in a predetermined rotation angle range; and

a mechanism that enables a rotation operation of the third moving part only in a case where the second moving part is in a predetermined rotation angle range.

6. The head-mounted display device according to claim 1, wherein a rotation angle range of the first moving part is about 90 degrees, and a rotation angle range of the second moving part is about 180 degrees.

7. The head-mounted display device according to claim 1,

wherein the arm has a signal processing unit transmitting display data to the image display unit built therein, and

wherein the image display unit has an optical system converting the display data input from the signal processing unit into a display image built therein.

8. The head-mounted display device according to claim 1,

wherein the attachment parts fix the second arm to the glasses at at least two places, and

wherein at least one of the attachment parts has a structure in which the second arm is attached or detached from a lower side of the glasses.

9. The head-mounted display device according to claim 1, further comprising a moving part state sensor that detects a rotation angle position of the first moving part or the second moving part,

wherein power of the image display unit is turned on in a case where the rotation angle position of the moving part detected by the moving part state sensor is within a predetermined range and is turned off in a case where the rotation angle position is outside the predetermined range.

10. A head-mounted display device that is used with being attached to glasses, the head-mounted display device comprising:

an image display unit that displays an image;

an arm that supports the image display unit; and

an attachment part that attaches the arm to the glasses,

wherein the arm is formed by a first arm supporting the image display unit and a second arm bonded to the attachment part and includes;

a first moving part that can rotate the image display unit with respect to the first arm; and

a second moving part that can extend or contract the first arm in a longitudinal direction with respect to the second arm, and

wherein a direction of a rotation axis of the first moving part and an extending/contracting direction of the second moving part are approximately parallel to each other.

11. The head-mounted display device according to claim 10, further comprising a third moving part that can rotate the second arm with respect to the attachment part,

wherein the extending/contracting direction of the second moving part and a direction of a rotation axis of the third moving part are approximately orthogonal to each other.

12. The head-mounted display device according to claim 10, further comprising a mechanism that enables an extending/contracting operation of the second moving part only in a case where the first moving part is in a predetermined rotation angle range.

13. The head-mounted display device according to claim 11, further comprising:

a mechanism that enables an extending/contracting operation of the second moving part only in a case where the first moving part is in a predetermined rotation angle range; and

a mechanism that enables a rotation operation of the third moving part only in a case where the second moving part is located at a predetermined extension/contraction position.

14. The head-mounted display device according to claim 10, wherein the second moving part has a structure in which the first arm enters or exits from the inside of the second arm.

15. The head-mounted display device according to claim 10, wherein the second moving part extends or contracts the first arm as a bellows structure.