Lens conforming to retina resolution ratio as well as optometry prescription and manufacturing method thereof

A manufacturing method and resolution technology, applied in glasses/goggles, optics, instruments, etc., can solve problems such as information communication errors, large manufacturing and assembly work differences, glasses that cannot meet the requirements of retinal resolution, etc., and achieve outstanding manufacturing The effect of small ability and work difference

Active Publication Date: 2018-08-07
WUXI BMF PRECISION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 2. The current glasses cannot meet the requirements of retinal resolution
[0012] 3. Traditional glasses fitting and manufacturing are carried out separately, lack of information communication, and large gap between manufacturing and assembly
In this process, data collection and lens processing are carried out separately, resulting in large differences in manufacturing and assembly, coupled with information communication errors, it is difficult to obtain products that meet optical health standards and high comfort

Method used

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  • Lens conforming to retina resolution ratio as well as optometry prescription and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] S1, Measure the optical properties of the patient's eye through a high-precision customized focal meter or wavefront sensor and generate a feature data set that is transmitted to a computer interface, including but not limited to wavefront aberration and corneal topography data for the creation of a computational model eye Foundation. Among them, the measurement accuracy of aberration is expressed as focal difference <0.06D. The high-precision customized focal meter or wavefront sensor here refers to an optical instrument that can meet the above-mentioned measurement accuracy.

[0034] S2, the computer converts the optical characteristic data into function information.

[0035] S3, the function information is fed to the optical calculation aided (CAD) design module, and the optical aided design module completes the preliminary design of the lens through the optical design software, and the design includes but is not limited to the double-sided free-form surface design ...

Embodiment 2

[0045] Example 2 - Example 4 Example 1 is further illustrated by a real fitting and manufacturing example.

[0046] Example 2

[0047] Patient 1 (44 years old), optometry data: left eye: -2.65, right eye: -2.65.

[0048] Input the optometry data into the computer, and the computer corrects the initial data according to the fact that the patient works as a clerical worker and uses his eyes at close range, and the corrected parameters are obtained as left eye: -2.53 and right eye: -2.53. For the case where the value of the diopter is less than -5.00, a material with a refractive index of 1.597 is selected for the next step of the model design process. Through the optical simulation system, the correction effect after the patient wears it is simulated, and the combination of the actual wearing and correction of the optometry film in the 5-degree change interval is used to further confirm the comfort of use.

[0049] After obtaining the final 3D model, according to the design ch...

Embodiment 3

[0051] Using the technical solution of Example 1, the best correction solution for patient 2 was obtained: left eye: -2.55, right eye: -2.55.

[0052] Use the current national standard 25-degree optometry film for optometry and correction, which can only be selected between left eye: -2.50, right eye: -2.50 or left eye: -2.75, right eye: -2.75;

[0053] Optometry and correction are performed with a 10-degree interval optometry sheet, which can only be selected between left eye: -2.50, right eye: -2.50 or left eye: -2.60, right eye: -2.60;

[0054] Using the optometry film in the 5-degree interval for optometry and correction, the optometry data can be accurately obtained and corrected as follows: left eye: -2.55, right eye: -2.55.

[0055] Medical data proves that the minimum resolution of the human eye for visual correction is 0.0625D, so a 5-degree interval will be used for optometry and correction to achieve the theoretically optimal correction plan.

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Abstract

The invention discloses a lens conforming to a retina resolution ratio as well as an optometry prescription and manufacturing method thereof. The method comprises the following steps of measuring andtransmitting the optical property of a patient to a computer, designing by using an optically assisted design module, evaluating by using an optical analysis module, introducing a database to retrieveand an optical simulation system to simulate, finally transforming into a design format conforming to mechanical production and manufacturing the lens by adopting a 3D printer or numerically-controlled machine tool cutting system. By controlling measurement accuracy and calibration accuracy, lens design conforming to the retina resolution ratio is obtained; by setting the database as required bypersonalized customization, the design parameters of glasses are optimized according to age and professional factors of different patients, so that the optometry and manufacture of the glasses are seamlessly connected, the information is intercommunicated, the tolerance is smaller, the eyesight can be obviously improved, and the discomfort of eyes caused by wearing is reduced.

Description

technical field [0001] The invention belongs to the technical field of lens fitting and manufacturing, in particular to a lens fitting retinal resolution and a fitting prescription and manufacturing method thereof. Background technique [0002] Fitting prescriptions, namely optometry prescriptions and glasses prescriptions, refer to the treatment methods and final conclusions of the optometry and glasses fitting process. [0003] Ordinary conventional optometry refers to the optical optometry in ordinary optical shops. Its purpose is only to allow people with refractive errors to see objects clearly, and the operation methods and steps are relatively simple. Medical optometry requires a high-precision, high-cost comprehensive optometry instrument, and strict requirements for optometrists. They must be ophthalmologists who are familiar with clinical ophthalmology and optometry knowledge. Medical optometry is generally through the test of the trial frame. According to the pat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02C7/02G02C7/06
CPCG02C7/027G02C7/06
Inventor 贺晓宁威廉普拉莫莫罕默德杰立方绚莱陈昱夏春光冯玉林
Owner WUXI BMF PRECISION TECH CO LTD
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