Measuring system and method for measuring optical parameters of digital film projector

Abstract

The application discloses a measuring system comprising: a light measuring sensor; a moving device for driving the light measuring sensor to move along a horizontal direction and a vertical directionin a vertical plane; a control device for controlling the operation of the moving device and the light measuring sensor; and a data analysis device in communication connection with the control device.When the measuring system measures the optical parameters of a digital film projector, the light measuring sensor can measure any position point, which the light measuring sensor can reach, in the vertical plane so that measurement flexibility, scalability, and accuracy are all significantly improved. Moreover, in case that the light measuring sensor is movable, one-key multi-point automatic measurement can be achieved by using only one light measuring sensor. Therefore, measurement cost is not increased when the workload of surveyors is reduced and measurement efficiency is improved. The present invention also provides a method for measuring the optical parameters of a digital film projector suitable for the measuring system.

Description

technical field [0001] The present invention relates to the technical field of measuring devices, in particular to a measuring system, and also relates to a method for measuring optical parameters of a digital movie projector suitable for the measuring system. Background technique [0002] Before leaving the factory, digital cinema projectors generally need to use light measurement sensors to measure optical parameters such as luminous flux and illuminance, contrast, illuminance and chromaticity non-uniformity, color gamut coverage and correlated color temperature. [0003] In the prior art, there are generally two ways to measure a digital cinema projector. One is that the surveyor uses a light measurement sensor to perform single-point measurement on the digital cinema projector. The specific measurement process is to install the light measurement sensor to different However, during the measurement process, it is necessary to repeatedly disassemble and assemble the light m...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, there are generally two ways to measure a digital cinema projector. One is that the surveyor uses a light measurement sensor to perform single-point measurement on the digital cinema projector. The specific measurement process is to install the light measurement sensor to different However, during the measurement process, it is necessary to repeatedly disassemble and assemble the light measurement sensor, and manually move the light measurement sensor to the measurement point, which not only makes the work burden of the measurement personnel larger, but also makes the measurement The efficiency is very low; another measurement method is to use multiple light measurement sensors to measure multiple measurement points at the same time, and this measurement method not only leads to high measurement costs due to the need to use multiple light measurement sensors, but also Restricted by the number and location of optical measurement sensors, the measurement flexibility and scalability are poor

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