Lens quality detection device and detection method

Abstract

The invention discloses a lens quality detection device and a lens quality detection method, which belong to the technical field of lens processing. The lens quality detection device comprises one ormore of a film thickness detection device, a refraction defect detection device and a scattering defect detection device, and further comprises a controller and a sorting device, wherein the controller can collect detection information transmitted by the film thickness detection device, the refraction defect detection device and the scattering defect detection device, and judge whether the lensesare qualified or not according to the detection information; and for the unqualified lenses in any detection procedure, the controller drives the sorting device to sort and reject the lenses. The lensquality detection device and the lens quality detection method provided by the invention can realize automatic detection of lens quality, improve detection precision and detection capability, improvedetection efficiency and reduce detection cost.

Description

technical field [0001] The invention relates to a lens quality detection device and a detection method, belonging to the technical field of lens processing. Background technique [0002] In recent years, the domestic lens industry has maintained a high-speed growth trend. my country has become the largest lens producer in the world. However, with the development of the industry, the competition in the industry has become increasingly fierce, and the quality requirements from customers have also raised requirements for lens manufacturers. At the same time, my country's labor costs continue to increase, resulting in an increase in the production cost of lenses. At present, lens manufacturers are faced with the problems of heavy quality inspection workload, inability to accurately match production capacity with shipment capacity, increased missed inspections, uneven quality standards, increased return orders, and increased labor costs; [0003] Most companies in the industry, e...

AI Technical Summary

Problems solved by technology

[0004] 1) The accuracy of manual detection is low

[0005] Manual measurement is completely subjective judgment, which will be affected by many factors such as workers' physiological differences, experience, emotion, and fatigue. Moreover, the judgment standard of manual inspection is very vague, and it is impossible to quantify and judge lens defects, which ultimately leads to product quality. The unevenness has seriously affected the sales of lenses, resulting in an increase in return orders;

[0006] 2) Manual detection is slow

[0007] The inspection speed of skilled workers is about 6 pieces / minute, while the inspection speed of new workers is much lower than this speed, so the manual inspection speed of lenses is very slow

Moreover, the manual detection speed cannot strictly match the production speed on the assembly line;

[0008] 3) The cost of manual inspection is getting higher and higher

[0009] With the development of my country's economy, labor costs are getting higher and higher, and it is becoming more and more difficult to recruit people for monotonous and repetitive jobs. Enterprises can only increase workers' wages to attract workers; because the lens has very small defects, it has a negative impact on workers' vision. Higher requirements, requiring workers not to be short-sighted, astigmatism, etc., which further increases the difficulty of recruiting

In addition, it takes 1 to 3 months of training for a new worker to be fully capable of testing, and the training cost further pushes up the cost of manual testing; according to statistics, the increasing cost of lens testing has become the main reason for the increase in lens production costs ;

[0010] 4) Insufficient ability to detect special defects

[0011] Due to the limited resolution of the human eye, it is difficult for the human eye to observe very subtle and inconspicuous defects

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