Integrated light source measuring apparatus

Abstract

The present invention provides an integrated light source measuring apparatus capable of measuring luminosity rapidly and preventing generation of edge phenomenon in the measuring process of integrated light source. The integrated light source measuring apparatus comprises a clathrate lightproof board, through holes having identical shape and number with LEDs are located on the same positons of the LEDs in an LED module on the clathrate lightproof board, lateral walls of each LED are surrounded by the through holes, the integrated light source measuring apparatus also comprises a light conducting plate having through holes with identical number with that of the through holes of the clathrate lightproof board are located at the same positioned of the through holes for preventing lights generated by each LED and passing through the clathrate lightproof board from leaking from side faces in advancing process, a light splitting filter reducing the greyscale of lights generated by each LED, an infrared ray cutting-off filter for cutting off the infrared ray contained in the lights from the light splitting and a sensor module having a plurality of photo-sensors arranged at positions corresponding to that of the LEDs.

Description

technical field [0001] The invention relates to a light source measuring device, in particular to an integrated light source measuring device capable of measuring the grayscale and chromaticity of multiple light sources. Background technique [0002] At present, there are many kinds of light sources such as filament light sources (electric lamps), gas-filled light sources (fluorescent lamps), and semiconductor light sources (LEDs). When manufacturing companies manufacture a large number of light sources, the products of each unit will inevitably have deviations in grayscale and chromaticity. [0003] In order to reduce this deviation, each manufacturing company classifies and measures products according to multi-level grayscale and chromaticity deviation, thereby separating them. [0004] In this case, with the current technical level, on average, if it is class 1, there will be a deviation of about 10-30%, which can be recognized by the naked eye in the case of integrated l...

AI Technical Summary

Problems solved by technology

[0005] However, there are many problems with the measurement device using the optical camera of the prior art, and there are many problems in the implementation of the technique of correcting the gray scale of the measurement light source

[0006] That is, using the existing optical camera measurement device, a CCD (charge-coupled device) is used to photograph and judge the luminosity of an LED module integrated with a plurality of LED (light-emitting diode) light sources from the front. The flatness of the camera lens or the balance of the radius of curvature (R) of the camera lens will produce optical errors that are edge phenomena

In addition, when the same product is used repeatedly, there is a problem that the sensitivity of the CCD decreases and the measurement error increases

Not only that, each LED module will shorten the life of the camera shutter due to easy wear and tear when the camera performs 12 shots

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