Lens light transmittance detection device and lens assembly equipment

Abstract

The invention provides a lens light transmittance detection device, which includes: a light source device that emits light beams in a certain wavelength range, and a built-in photoelectric sensor for sensing the signal strength of the light beams emitted by the light source device; a collimated and focused beam projected to Focusing device on the lens to be tested; an integrating sphere that receives light beams penetrating the lens to be tested; a mobile platform that moves the lens to be tested relative to the focusing device and the integrating sphere; a photosensitive element is included to detect the light beam received by the integrating sphere And turn it into a detector to be compared with the signal, the photosensitive element is selected from one of the charge coupling device and the complementary metal oxide semiconductor; one is placed on the light source device to adjust the wavelength range of the emitted light beam according to the detection range of the detector The light filter adjuster is a processor for comparing the signal strength induced by the photoelectric sensor with the signal strength to be compared to obtain the light transmittance of the lens to be tested. The invention also provides a lens assembly equipment integrated with the lens light transmittance detection device.

Description

Technical field [0001] The invention relates to a lens light transmittance detection device, and to a lens assembly equipment integrated with the lens light transmittance detection device. Background technique [0002] Lenses, for example, used in various types of glasses, used in camera lenses, etc., are common optical components in production and life. In this type of lens, the transmittance to light or to light of a specific wavelength band is often an important parameter to measure its optical performance. [0003] A typical lens light transmittance detection method uses the following method to detect the lens to be tested: a light source is set on one side of a lens to be tested, and a photomultiplier tube (Photo Multiplier Tube, referred to as a photomultiplier tube) is set on the other side of the lens. PMT), when the light beam emitted by the light source is projected on the lens, part of the light will penetrate the lens and be detected by the photomultiplier tube, and th...

AI Technical Summary

Problems solved by technology

However, the detection speed of the photomultiplier tube is extremely slow, and only one pixel can be collected at a time, so for larger lenses, this detection rate is far from meeting the requirements of modern industrial production

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