Parallel beam flexure mechanism for interpupillary distance adjustment
First Claim
1. A system for adjusting a distance between a first optical payload and a second optical payload of an optical device, the system comprising:
- a first flexure and a second flexure, wherein the first flexure is parallel to the second flexure;
a mounting platen having a first end and a second end, wherein the first end of the mounting platen is attached to the first flexure and the second end of the mounting platen is attached to the second flexure, wherein the first flexure and the second flexure extend from the mounting platen in a vertical direction, and wherein the first optical payload is attached to the mounting platen;
a first anchoring member, wherein the first anchoring member is attached to a first end of the first flexure that is opposite a second end of the first flexure, wherein the mounting platen is attached to the second end of the first flexure;
a second anchoring member, wherein the second anchoring member is attached to a first end of the second flexure that is opposite a second end of the second flexure, wherein the mounting platen is attached to the second end of the second flexure;
a third flexure and a fourth flexure, wherein the third flexure is parallel to the fourth flexure, wherein the first anchoring member is attached to a first end of the third flexure that is opposite a second end of the third flexure, wherein the second end of the third flexure is attached to a frame of the optical device, wherein the second anchoring member is attached to a first end of the fourth flexure that is opposite a second end of the fourth flexure, wherein the second end of the fourth flexure is attached to the frame of the optical device;
a translation mechanism attached to the mounting platen, wherein the translation mechanism is configured to translate the mounting platen in a horizontal direction by bending the first flexure, the second flexure, the third flexure, and the fourth flexure thereby adjusting the distance between the first optical payload and the second optical payload, wherein the translation mechanism comprises an adjustment wheel for causing translation of the mounting platen in response to a rotation of the adjustment wheel.
1 Assignment
0 Petitions
Accused Products
Abstract
A parallel beam flexure mechanism (“PBFM”) for adjusting an interpupillary distance (“IPD”) of an optical device is disclosed. The PBFM includes a plurality of flexures, a mounting platen, an optical payload, and a horizontal translation mechanism. The mounting platen has a first end and a second end, where the mounting platen is attached to a first set of flexures that are in a parallel arrangement to a second set of flexures attached to a frame of an optical device, such as a head mounted display. The optical payload and horizontal translation mechanism are attached to the mounting platen, where the horizontal translation mechanism is configured to translate the mounting platen in a horizontal direction by bending the flexures, thereby adjusting the IPD of the optical device.
17 Citations
7 Claims
-
1. A system for adjusting a distance between a first optical payload and a second optical payload of an optical device, the system comprising:
-
a first flexure and a second flexure, wherein the first flexure is parallel to the second flexure; a mounting platen having a first end and a second end, wherein the first end of the mounting platen is attached to the first flexure and the second end of the mounting platen is attached to the second flexure, wherein the first flexure and the second flexure extend from the mounting platen in a vertical direction, and wherein the first optical payload is attached to the mounting platen; a first anchoring member, wherein the first anchoring member is attached to a first end of the first flexure that is opposite a second end of the first flexure, wherein the mounting platen is attached to the second end of the first flexure; a second anchoring member, wherein the second anchoring member is attached to a first end of the second flexure that is opposite a second end of the second flexure, wherein the mounting platen is attached to the second end of the second flexure; a third flexure and a fourth flexure, wherein the third flexure is parallel to the fourth flexure, wherein the first anchoring member is attached to a first end of the third flexure that is opposite a second end of the third flexure, wherein the second end of the third flexure is attached to a frame of the optical device, wherein the second anchoring member is attached to a first end of the fourth flexure that is opposite a second end of the fourth flexure, wherein the second end of the fourth flexure is attached to the frame of the optical device; a translation mechanism attached to the mounting platen, wherein the translation mechanism is configured to translate the mounting platen in a horizontal direction by bending the first flexure, the second flexure, the third flexure, and the fourth flexure thereby adjusting the distance between the first optical payload and the second optical payload, wherein the translation mechanism comprises an adjustment wheel for causing translation of the mounting platen in response to a rotation of the adjustment wheel. - View Dependent Claims (2, 3, 4)
-
-
5. A parallel beam flexure mechanism (“
- PBFM”
) for adjusting an interpupillary distance (“
IPD”
) of an optical device, the PBFM comprising;a first flexure and a second flexure; a mounting platen having a first end and a second end, wherein the first end of the mounting platen is attached to the first flexure and the second end of the mounting platen is attached to the second flexure; an optical payload attached to the mounting platen; a horizontal translation mechanism attached to the mounting platen, wherein the horizontal translation mechanism is configured to translate the mounting platen in a horizontal direction by bending the first and second flexures, thereby adjusting the IPD of the optical device, wherein the horizontal translation mechanism comprises an adjustment wheel for causing translation of the mounting platen in response to a rotation of the adjustment wheel; and a first and second anchoring members, wherein the first flexure is attached to the first anchoring member and second flexure is attached to the second anchoring member, wherein the first anchoring member and the second anchoring member are attached to a body of the optical device, the PBFM further including a frame attached to the horizontal translation mechanism and a third flexure attached to the first anchoring member and a fourth flexure attached to the second anchoring member, wherein the third and fourth flexure are also attached to the frame. - View Dependent Claims (6, 7)
- PBFM”
Specification