Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – For interpupillary distance measuring or lens positioning
Patent
1999-05-07
2000-11-07
Manuel, George
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
For interpupillary distance measuring or lens positioning
351216, A61B 300
Patent
active
061426288
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an eyeglasses try-on simulation system, which displays an eyeglasses-wearing composite image composed of an eyeglasses frame image relative to a portrait of a person, who is not wearing eyeglasses, that is, which enables eyeglasses to be tried on in a virtual mode, and more particularly to an eyeglasses try-on simulation system, which is constituted so as to enable the easy and accurate determination of an eyeglasses frame and eyeglass lens that are to the liking of an eyeglasses wearer.
BACKGROUND ART
Simulation systems for people who wear eyeglasses have been known for some time now. For example, Japanese Patent Laid-open No. 61-80222 proposes a system, which uses a video camera to film an image of a person, specifies the eyeglasses area in that image as a square framework display, and creates a composite image by superimposing an eyeglasses frame in this area. Further, Japanese Patent Laid-open No. 63-76581 proposes a system, which determines the ratio of the photographic magnification on a composite image of a person and an eyeglasses frame by comparing an actual measurement of PD (pupil distance) and an actual measurement on the image.
However, with the simulation systems disclosed in the above-mentioned Japanese Patent Laid-open No. 61-80222 and Japanese Patent Laid-open No. 63-76581, it is difficult to compare and study the wearing states of various eyeglasses frames on the screen at the same time, and operation is also complicated. Further, these systems only [simulated] a wearing state of an eyeglasses frame, and did not enable comparison of states wherein actual prescription lenses are mounted in the eyeglasses, and were not capable of comparative simulation for determining optimum eyeglasses that satisfy such conditions as light weight, good appearance, and the like.
Further, there has also been proposed a method, wherein a computer selects, based on a previously determined design rule, a lens shape that suits the shape of the face of an eyeglasses wearer. But this method was not able to sufficiently reflect the preferences of an eyeglasses wearer.
With the foregoing in view, an object of the present invention is to provide an eyeglasses try-on simulation system, which is capable of simulating a state, which takes eyeglasses lenses into consideration, and more closely approximates the actual wearing of eyeglasses, and which enables an easy and accurate determination of eyeglasses that are to one's liking.
A further object of the present invention is to provide an eyeglasses try-on simulation system, which enables judgments to be made on the determination of eyeglasses based on abundant, easy-to-understand eyeglasses frame information. A further object of the present invention is to provide an eyeglasses try-on simulation system, which enables the easy creation and selection of a lens shape to one's liking, while confirming an eyeglasses wearing state.
DISCLOSURE OF THE INVENTION
To achieve the above-mentioned objects, the present invention adopts the following constitutions. An eyeglasses try-on simulation system of the present invention (Constitution 1) is characterized in that it comprises a function for capturing and displaying on a display screen as image data a portrait of a person, who is not wearing glasses; a function for selecting an arbitrary eyeglasses frame from among eyeglasses frame data, comprising images of a plurality of types of eyeglasses frames stored in advance; a function for composing an eyeglasses frame image of the above-mentioned selected eyeglasses frame and the above-mentioned portrait image, and for displaying on the above-mentioned display screen a composite image on which the eyeglasses frame is simulated; and a lens selecting support function for computing, on the basis of previously-inputted lens prescription data, lens material data, and lens optical design data, a lens shape state when a lens is placed into the above-mentioned selected eyeglasses frame, and for displaying the results of the computation the
REFERENCES:
patent: 5576778 (1996-11-01), Fujie et al.
patent: 5592248 (1997-01-01), Norton et al.
patent: 5875017 (1999-02-01), Ohnuma et al.
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