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Optometry rack for eyeglasses

A technology for measuring frames and glasses, which is applied in the field of optometry and matching, and can solve the problems of unfavorable spectacle frames in the later correction and inaccurate optometry results.

Pending Publication Date: 2021-05-07
上海三联(集团)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the individual differences of different testees, such as the difference in the height of the nose bulge, the existing spectacle fitting and measuring frame cannot make appropriate countermeasures for these subtle differences, resulting in inaccurate optometry results and is not conducive to the post-correction of the spectacle frame

Method used

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  • Optometry rack for eyeglasses
  • Optometry rack for eyeglasses
  • Optometry rack for eyeglasses

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Embodiment Construction

[0047] As mentioned in the background technology, the existing spectacle fitting and measuring frames generally adopt a fixed structure, which cannot be adjusted individually according to the facial features of the testee, which affects the accuracy of optometry results and is not conducive to the post-correction of spectacle frames.

[0048] On the other hand, none of the existing interpupillary distance measuring instruments or other measuring methods can accurately measure the kappa angle of the human eye.

[0049] Specifically, from the perspective of optometry, the geometric center of the pupil of the human eye is not necessarily the optical center of the eye. The reason is that the macular fovea on the retina of the fundus has a diameter of about 1 millimeter (mm), which is also the location of the focus center of the eyeball optical system. The physiological feature of the human eye is that the central fovea is not the axial end point of the eyeball, but the axial end p...

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Abstract

The invention relates to an optometry rack for eyeglasses. The optometry rack comprises a main beam; a nose pad component, wherein the nose pad component comprises an extendible arm, an adjusting mechanism and a nose pad, the extendible arm is connected to the main beam, the nose pad is connected with the extendible arm through the adjusting mechanism and has a contact face to be in contact with a human nose, and the adjusting mechanism is used for adjusting a shape of the contact face of the nose pad; a first eyeglass leg, connected to a first end of the main beam; a second eyeglass leg, connected to a second end of the main beam; a first lens fixing frame, wherein the first lens fixing frame is connected to the main beam and is located between the nose pad component and the first eyeglass leg; and a second lens fixing frame, wherein the second lens fixing frame is connected to the main beam and is located between the nose pad component and the second eyeglass leg. According to the optometry rack provided by the invention, an angle of arching of the nose pad can be adjusted, thus, the nose pad can be in better fit with arching height of a nose bridge of a testee, the comfort level of wearing of the optometry rack for the eyeglasses is increased, and more accurate parameters can be provided for subsequent matching of the eyeglasses.

Description

technical field [0001] The invention relates to the technical field of optometry and glasses, in particular to a measuring frame for glasses fitting. Background technique [0002] Glasses are a kind of commonly used eyesight correcting article, in order to can accurately match glasses, often need carry out optometry. In order to obtain accurate optometry results, complex optometry issues and various visual parameters of the human eye are involved in the optometry process. [0003] Due to the individual differences of different testees, such as the difference in the height of the nose bulge, the existing spectacle fitting and measuring frame cannot make appropriate countermeasures for these subtle differences, resulting in inaccurate optometry results and is not conducive to the post-correction of the spectacle frame . Contents of the invention [0004] The technical problem solved by the invention is to provide an improved optometry measuring frame. [0005] In order to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/04
CPCA61B3/0285A61B3/04
Inventor 林培任
Owner 上海三联(集团)有限公司
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