Interchangeable lens mechanism for a head-worn display system and method of assembling the lens mechanism
Inventors
Aferzon, Joshua • Nicholson, Lee
Assignees
Publication Number
US-11779204-B1
Publication Date
2023-10-10
Expiration Date
2043-03-31
Interested in licensing this patent?
MTEC can help explore whether this patent might be available for licensing for your application.
Abstract
A lens mechanism for a head-worn display device and a method of assembling the lens mechanism is disclosed. The lens mechanism includes a first housing disposed on a head-worn display device, wherein the first housing includes a first lens display, a first optic and a first optic holder configured to rigidly maintain the first lens display and the first optic, wherein the first optic holder includes an aperture configured to allow light waves to pass from the first lens display to the first optic. The lens mechanism includes a second optic holder that includes a second optic configured for vision correction, wherein the second optic is interchangeable and located over the first optic. The second optic holder is configured to removably dispose the second optic to the head-worn display device.
Core Innovation
The invention disclosed is a lens mechanism for a head-worn display device and a method of assembling this mechanism. The lens mechanism comprises a first housing on the head-worn display device, which includes a first lens display configured to emit light waves displaying an image, a first optic to magnify this image, and a first optic holder that rigidly maintains both while having an aperture to allow light passage. It further includes a second optic holder with an interchangeable second optic configured for vision correction, located over the first optic and removably disposed to the device.
The background problem addressed by this invention is the challenge that a majority of people requiring prescription lenses face when using near-eye displays integrated into head-worn devices. Ensuring proper vision correction and clear viewing through such near-eye displays is a technical issue the invention aims to resolve.
The invention allows interchangeable prescription lenses to be removably disposed in the head-worn device, enabling users to change lenses according to different corrective prescriptions without affecting other components. The method of assembling includes obtaining the components such as lens displays, optics, and optic holders, housing them, attaching to the head-worn device, and removably disposing the second optic holder with its optic over the primary optic. This structure maintains image magnification and correction, supporting vision conditions like myopia, astigmatism, and others.
Claims Coverage
The claims disclose fourteen inventive features covering the lens mechanism components and the method of assembling the lens mechanism with special attention to arrangement, modularity, and vision correction functionality.
Angularly disposed first housing with integral components
A first housing disposed at an angle to a horizon plane comprising a first lens display emitting light waves to display an image, a first optic magnifying this image, and a first optic holder with an aperture allowing passage of light waves.
Second optic holder with interchangeable vision correction
A second optic holder holding a second optic configured for vision correction that is interchangeable, positioned over the first optic, and removably disposed to the head-worn display device.
Eye-line prescription lens for vision correction
An eye-line prescription lens configured to provide vision correction aligned relative to the horizon plane of the head-worn display device.
Computing device with display daughter board integrated in first housing
The first housing further comprising a computing device that includes a display daughter board.
First optic holder rigid maintenance including computing device
The first optic holder further configured to rigidly maintain the computing device.
First optic holder maintaining components at relief height
The first optic holder configured to rigidly maintain the first lens display and first optic at a relief height (Rh).
Second housing with lens display, optic, and holder at relief height
A second housing comprising a second lens display configured to emit light waves showing a second image, a third optic magnifying the second image, and a third optic holder maintaining these at the relief height.
Housing configurations to block ambient light
The first and second housings are configured to block ambient light.
Angular disposition of housings at downward angle
The first and second housings are angularly disposed on the device at a downward angle.
Accommodation angle between housings along vertical plane
The first and second housings are angularly disposed relative to each other along a vertical plane by an accommodation angle.
Lens displays configured to receive images from cameras
The first and second lens displays receive first and second images respectively from a first and second camera.
Fixtures on optic holders for rigid maintenance
The first optic holder and third optic holder comprise fixtures configured to rigidly maintain the respective lens display.
Interchangeable fourth optic in fourth optic holder over third optic
A fourth optic holder comprising an interchangeable fourth optic located over the third optic and removably disposed within the device.
Different correction prescriptions for second and fourth optics
The second optic and fourth optic have different correction prescriptions.
The claims cover a modular lens mechanism for a head-worn display composed of housings, lens displays, optics, and optic holders that provide magnification and vision correction with interchangeable prescription lenses, angular disposition for accommodation, ambient light blocking, and the inclusion of an eye-line prescription lens. The assembly method details placing and housing these components with removable disposal of prescription lenses.
Stated Advantages
Enables interchangeable prescription lenses for customizable vision correction in head-worn display devices.
Maintains proper focus through rigid holding of lens displays and optics at a relief height matching focal length.
Blocks ambient light interference to improve image quality in bright environments.
Allows for angular disposition of housings to optimize user viewing angles and reduce eye strain.
Facilitates easy assembly and disassembly of components, simplifying customization and maintenance.
Documented Applications
Corrective vision support in head-worn display devices such as headsets or eyeglasses.
Viewing near-eye displays requiring vision correction for binocular stereoscopic vision.
Surgical environments where users need to view images from cameras with proper vision correction and ambient light blocking.
Integration with stereoscopic cameras providing depth perception images.
Use in environments with bright ambient light such as operating rooms or factories.
Interested in licensing this patent?