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Spectacle lens refractive index measuring device and method

A measuring device and spectacle lens technology, which is applied in the direction of refractive power measurement and optical performance testing, can solve the problems of not having a lens refractive index instrument, not knowing the refractive index of spectacle lenses, etc., and achieve the effect of improving the wearing experience

Inactive Publication Date: 2019-12-27
孙建凡
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vast majority of users do not know the refractive index of the spectacle lenses they are wearing, and now there are usually only refractometers that can measure the diopter of the lenses in optical shops, but no instruments that can measure the refractive index of the lenses.

Method used

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  • Spectacle lens refractive index measuring device and method

Examples

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Embodiment Construction

[0027] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

[0028] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

[0029] like Figure 1-Figure 2 As shown, a device for measuring the refractive index of spectacle lenses includes a diopter measuring element 101, a manual input element 102 and a data processing element 103;

[0030] The diopter measuring element 101 is used to measure the concave curvature D of the ophthalmic lens to be tested 凹 and convex diopter D 凸 ;

[0031] The manual inpu...

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Abstract

The invention discloses a spectacle lens refractive index measuring device and method, and the device comprises a diopter measuring element, a manual input element and a data processing element, wherein the diopter measuring element is used to measure the concave diopter D-concave and convex diopter D-convex of a spectacle lens to be measured; the manual input element is used to input the accuratediopter D-accurate of the spectacle lens to be measured; and the data processing element is used to calculate the refractive index N of the spectacle lens to be measured according to the concave diopter D-concave, the convex diopter D-convex and the accurate diopter D-accurate. The spectacle lens refractive index measuring device and method provided by the invention can quickly measure the refractive index of the spectacle lens being used by the user, are convenient for the eyeglass shop to accurately understand the refractive index of the spectacle lens being used by the customer and to introduce the customer with a more suitable refractive index new lenses, and enhance user wearing experience.

Description

technical field [0001] The invention relates to the technical field of spectacle lens optical measurement, in particular to a spectacle lens refractive index measurement device and a measurement method. Background technique [0002] With the development of society, the number of people suffering from myopia is increasing, and the frequency of people changing myopia lenses is getting faster and faster. When people change spectacle lenses, in order to ensure the comfort of wearing, the head of the optical shop will generally recommend that the user replace the lenses with the same refractive index as the lenses they are currently wearing. However, the vast majority of users do not know the refractive index of the spectacle lenses they are wearing, and now there are usually only refractometers that can measure the diopter of the lenses in optical shops, but no instruments that can measure the refractive index of the lenses. Contents of the invention [0003] Aiming at the de...

Claims

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Application Information

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IPC IPC(8): G01M11/02
CPCG01M11/0228
Inventor 孙建凡
Owner 孙建凡
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