Image providing apparatus
Provided is an image providing apparatus having connecting member connecting a head set and optical housing capable of adjusting displacement of the optical housing in the vertical direction to the eyeball of the observer when adjusting the eye-relief of the optical housing to the eyeball of the observer. The ball joint has ball portions respectively on two ends thereof, on one of the ends (upper ends) is provided to the supporting member side capable of maintaining a posture thereof, and the ball portion on another ends (lower ends) is provided to the optical housing side for maintaining a posture thereof. The connecting member has a first member and a second member, the first member is connected to the second member so as to be movable and capable of maintaining a posture thereof.
1. An image providing apparatus comprising:
an optical housing which houses an image providing optical system for providing an image to an observer;
a head gear which is fitted to a head of the observer;
a supporting member provided to the head gear; and
a connecting member which connects the supporting member and the optical housing, wherein
the connecting member includes ball portions respectively on two ends thereof, and has a conical-movable range,
the ball portion on a first one of the ends is provided to the supporting member side, as being capable of maintaining a posture thereof,
the ball portion on the second one of the ends is provided to the optical housing side, as being capable of maintaining a posture thereof,
the connecting member includes a first member and a second member, and the first member is connected to the second member so as to be movable and capable of maintaining a posture thereof.
2. The image providing apparatus as claimed in claim 1 , wherein a surface of the ball portion contains a rubber material as a major ingredient.
3. The image providing apparatus as claimed in claim 1 , wherein
each of the first member and the second member includes a connecting portion, and
the first member and the second member are connected to each other by pressure while having a rubber material therebetween.
4. The image providing apparatus as claimed in claim 1 , wherein
one of the first member and the second member includes a ball portion constituting a connecting portion on one end thereof,
the other member includes a hollow member having a spherical hollow on one end thereof, and
the ball portion is fitted and connected to the hollow member.
5. The image providing apparatus as claimed in claim 1 , wherein
the supporting member is provided with a flexible piece,
the ball portion provided to the supporting member side, as being capable of maintaining the posture thereof, is in contact with the flexible piece, and
the flexible piece changes the degree of pressure against the ball portion according to the degree of pressure caused by a screw.
6. The image providing apparatus as claimed in claim 1 , wherein
the optical housing is provided with a flexible piece,
the ball portion provided to the optical housing side, as being capable of maintaining the posture thereof, is in contact with the flexible piece, and
the flexible piece changes the degree of pressure against the ball portion according to the degree of pressure caused by a screw.
7. The image providing apparatus as claimed in claim 1 , wherein at least one of the first member and the second member is formed into a bent shape.
8. The image providing apparatus as claimed in claim 1 , wherein
the ball portion on the first end is provided to the first member as being capable of maintaining the posture thereof against the supporting member,
a first end of the second member is provided as being capable of maintaining the posture thereof against the first member, and
the ball portion on the second end of the second member is provided to the optical housing side, as being capable of maintaining the posture thereof.
9. The image providing apparatus as claimed in claim 1 , wherein each of the first member and the second member includes ball portions respectively on two ends thereof.
10. The image providing apparatus as claimed in claim 9 , further comprising an intermediate connecting member provided as being capable of maintaining a posture thereof against the ball portion on the second end of the first member and against the ball portion on the first end of the second member.
11. The image providing apparatus as claimed in claim 1 , wherein
the first member and the second member respectively include ball portions each constituting a connecting portion, and
the ball portions are respectively connected to different locations on an intermediate connecting member.
12. The image providing apparatus as claimed in claim 11 , wherein a surface of the ball portion contains a rubber material as a major ingredient.