Lens outer diameter error non-rotation type detection device

Abstract

The invention discloses a lens outer diameter error non-rotation type detection device which comprises a base, a carrier for bearing a horizontal lens is arranged on the base, the lens outer diametererror non-rotation type detection device further comprises more than or equal to four pneumatic displacement sensors positioned on the periphery of the carrier and arranged at intervals along the circumferential direction of the carrier, each pneumatic displacement sensor is a displacement sensor with a detection end which can move along the radial direction of the lens along the radial directionof the lens until to be in contact with the edge of the lens, each pneumatic displacement sensor is radially adjustably connected to the base through a mounting device. According to the lens outer diameter error detection device, in the detection process, the lens does not need to be rotated, the outer circle of the lens cannot be scratched by a measuring head of a sensor, and therefore, the method can reduce the risk of lens abrasion in the detection process.

Description

technical field [0001] The invention relates to the field of lens detection equipment, in particular to a non-rotating detection device for lens outer diameter errors. Background technique [0002] In the process of manufacturing lenses, it is inevitable to cause errors in the lens diameter. When the outer diameter of the lens is abnormal, it will affect the quality of the product, even if it is not serious, it will affect the effect of the lens. Therefore, the detection of the outer diameter of the lens is an indispensable process for lens manufacturing. [0003] There are roughly two types of devices in existing lens outer diameter detection methods: [0004] One is to use a laser caliper, which is a non-contact detection device. The detection process does not damage the lens, but due to the light transmission of the lens itself, the reliability of the detection result is not high. For example, the publication number CN 207622706U provides The non-contact lens outer diame...

AI Technical Summary

Problems solved by technology

[0004] One is to use a laser caliper, which is a non-contact detection device. The detection process does not damage the lens, but due to the light transmission of the lens itself, the reliability of the detection result is not high. For example, the publication number CN 207622706U provides Non-contact lens outer diameter automatic detector

[0005] The other is micrometer measurement that requires manual operation. It is a contact measurement. During the measurement process, the lens needs to be manually rotated to detect multiple pairs of points on the outer diameter of the lens. This detection device is highly dependent on manual work and has low detection efficiency. When rotating the lens for inspection, the micrometer is always in contact with the outer circle of the lens, and there is a risk of scratching the lens

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