Carrier device and luminous flux testing system and method of LED flexible light bar

Abstract

The invention discloses a carrier device, a light flux test system and a light flux test method of a flexible LED (light-emitting diode) lamp bar. The carrier device serves as a carrier of the flexible LED lamp bar during a light flux test of the flexible LED lamp bar, and comprises a carrier fixture with a curved surface capable of allowing a to-be-tested flexible LED lamp bar to be wound uniformly, and a connection unit arranged at one end of the carrier fixture and used for hanging the carrier device. When the flexible LED lamp bar is subjected to the light flux test, the to-be-tested flexible LED lamp bar is uniformly wound on the carrier device, and the carrier device is hung in the center in a light flux measurement device for light flux measurement, so that a situation that measurement data is poor in consistency due to non-uniform diffuse reflection and deformation of the flexible LED lamp bar since the flexible LED lamp bar is not uniform in length, and LED light sources are only welded on one surface of the flexible LED lamp bar during the light flux test can be avoided effectively.

Description

technical field [0001] The invention relates to the field of LED lighting, in particular to a carrier device for an LED flexible light bar, and a luminous flux testing system and method for the LED flexible light bar. Background technique [0002] LED flexible light strip is a kind of strip lamp with LED lights welded on the metal. Because most of them are long like strips and also emit light, people call them LED flexible light strips or LED light strips. It is mainly used for indoor and outdoor decoration to set off the environment and play an ornamental role. Many families will install it in the second-level mezzanine of the ceiling and in the dark groove of the curtain wall, and there are also many commercial places for making billboards or rendering atmosphere and so on. [0003] The luminous flux of the LED flexible light bar is its important performance, and using the integrating sphere to measure the luminous flux of the light source is one of the most important met...

AI Technical Summary

Problems solved by technology

[0004] Generally, the luminous flux test method of traditional lighting fixtures is to directly install the light source to be tested at the center of the integrating sphere, but since the length of the LED flexible light strip is different, and the SMD LED light source is only welded on one side of the flexible light strip, when hanging on When inside the integrating sphere, there will be a problem of uneven distribution of light angles

Moreover, since the reflectivity of the coating on the inner wall of the integrating sphere is not theoretically 100%, the uniformity of diffuse reflection at each point is not completely consistent.

And because the LED flexible light bar is composed of multiple SMD LED light sources welded on the flexible substrate, the flexible substrate contains multiple layers of different materials, when the temperature rises, due to the inconsistent thermal expansion between the materials, it is easy to occur to varying degrees warping and bowing

Therefore, during the reliability test, due to the influence of the placement direction and deformation degree of the LED flexible light strip, the consistency of each measurement cannot be guaranteed.

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