Mobile phone lens orthographic projection type testing machine

Abstract

The invention relates to a mobile phone lens orthographic projection type testing machine which comprises an upper rack, a lower rack and a testing device, the testing device comprises an XY-directiontesting platform, and the technical key points are that a lamp panel lifting mechanism is arranged at the top, corresponding to the XY-direction testing platform, of the upper rack; and a light source plate parallel to the horizontal plane, plate glass and a chart card clamped between the light source plate and the plate glass are fixed to the lamp panel lifting mechanism, a relay lens lifting platform is arranged on the portion, on the side of the XY-direction testing platform, of the bottom plate, and a relay lens located above the XY-direction testing platform is assembled on the relay lens lifting platform. A Z-axis test platform corresponding to the XY-direction test platform is fixed below the bottom plate, a test chip is fixed on the Z-axis test platform, a test disc for bearing ato-be-tested lens is arranged on the XY-direction test platform, and a lens object side is arranged above the test disc. The machine solves the problem of limited detection range of existing light back projection detection equipment, and is good in universality and high in detection efficiency and detection precision.

Description

technical field [0001] The invention relates to the field of optical lens testing, in particular to a mobile phone lens front projection testing machine. Background technique [0002] At present, the method for performance testing of mobile phone lenses is mainly the test method of light back projection, which mainly arranges a light source 17 and a reticle 16 on the image side of the lens, and arranges a circle of CCD cameras 15 around the optical axis on the object side of the lens. (at least 13), a beam of light emitted by the light source is irradiated to the lens through the reticle, and the intensity signals of the light collected by each CCD camera 15 etc. realize the judgment of the performance of the lens, see Figure 8 , Figure 9 . However, this back-projection testing method has the following problems: [0003] 1. The minimum field of view of the lens is required to be 16°. During normal testing, it is necessary to monitor the performance of the lens at 0.3 fi...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a mobile phone lens positive projection testing machine with reasonable structure and reliable use, which solves the problem of limited detection range of existing light back projection detection equipment, has good versatility, high detection efficiency and detection accuracy

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