Future Apple Vision Pros may have features to help alleviate double vision. Apple has filed for a patent for a “Head-Mounted Device With Double Vision Compensation And Vergence Comfort Improvement.”
About the patent filing
Apple notes in the patent filing that electronic devices such as the Vision Pro may have cameras for capturing a video feed of an external scene, a graphics rendering unit for generating virtual content, and one or more displays for presenting the captured video feed of the scene and/or the generated virtual content to a user.
Apple says it can be challenging to design a head-mounted device for user’s who wear prescription glasses. Most standard eyeglass prescriptions, including those that require prism correction, can be accommodated for using additional clip-on lenses in front of the displays.
Prism correction is a specific type of eyeglass prescription that helps people with double vision by aligning the images seen by both eyes. Double vision occurs when the eyes do not work together properly, causing them to see two separate images of a single object. Prism correction can also be used to provide improved vergence comfort, even for users without double vision.
Apple says that, however, the use of clip-on lenses, can be overly bulky and can degrade the accuracy and limit the range of eye tracking sensors in the head-mounted devices. The tech giant is looking for methods to deal with such issues.
Summary of the patent filing
Here’s Apple’s abstract of the patent filing: “A method of operating an electronic device to mitigate double vision is provided. The method can include using front-facing cameras to acquire passthrough content, using a graphics renderer to generate virtual content, mitigating double vision or improving vergence comfort by modifying at least the passthrough content, merging the passthrough content with the virtual content, and displaying the merged content.
“The passthrough content can be modified by selectively shifting or transforming left eye passthrough content or right eye passthrough content. The virtual content can be rendered based on a similar type of modification applied to the passthrough content. The virtual content can also be modified by selectively shifting or transforming left eye virtual content or right eye virtual content.”
About the Vision Pro
Demos of the Apple Vision Pro at Apple Stores in the U.S. can be reserved on Apple.com. To reserve a free Vision Pro demo online, go here, then follow the steps to book an appointment at your local Apple Store.
Pricing for the Vision Pro starts at US$3,499 with 256GB of storage. ZEISS Optical Inserts are available: $99 for reading lens and $149 for prescription lens.
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