US 11,707,191 B2 · Calibration and image procession methods and systems for obtaining accurate pupillary distance measurements

Abstract

Accurate measurement of pupillary distance, PD, is necessary to make prescription eye glasses as well as configuring VR headsets, and using other binocular optical devices. Today, many people are ordering eyeglasses on line and obtaining their PD is often problematic for a number of reasons as the prior art fails to provide consumer friendly PD measurement systems. A disclosed eyeglass frame system comprises reference marks of known locations upon the frames. A smart phone may be used to locate the consumer's pupils, while the consumer is wearing the frames. The consumer's pupils may be marked or tagged upon a digital image of the consumer wearing the frames. By use of angles in the sight lines of the camera lens and other variable values and the known relative distances of the frame markings, a consumer's pupillary distance can be quickly and accurately derived.

Claims15

Dependent claims

A system for measuring pupillary distances (PD) using eyeglass frames (200), with the eyeglass frames comprising reference indicia, the system comprising:

a) the reference indicia of the eyeglass frames comprising a first marking (260) disposed upon a right temple area of the eyeglass frames, a second marking (265) disposed upon a left temple area of the eyeglass frames and a third marking (263) disposed upon a center area of the eyeglass frames;
b) a lens (720) to find angles from the lens to the first, second and third markings;
c) the positions of the first, second and third markings of the eyeglass frames to determine a horizontal plane of the third marking of the eyeglass frames to determine a vertical plane, these two planes are considered the pupil plane wherein a current single PD is derived by using the x and y axis of a left and a right pupil as derived from marker positions (300), the marker positions derived from a personal electronic device, wherein
current_pd
=
(
x
left
-
x
right
)
2
+
(
y
left
-
y
right
)
2
+
(
z
left
-
z
right
)
2
.

29 more elements

Dependencies are inferred from the claim text.

Calibration and image procession methods and systems for obtaining accurate pupillary distance measurements

Life of this patent

Calibration and image procession methods and systems for obtaining accurate pupillary distance measurements

Life of this patent

Abstract

Claims15