Methods, systems, and apparatus for end of line testing

摘要

A testing box for testing light sources, the testing box comprising: an enclosure comprising an opening for receiving a light source; a sensor of a light property for light emitted inside the enclosure; and a comparator of the light property sensed by the sensor and a shifted test box boundary for the light property, wherein the shifted test box boundary is based on a correlation between a measured light property of a test light source in an integrating sphere and a measured light property of the test light source in the testing box. A method for testing a light source for compliance with a standard, comprising: obtaining a first measurement of a first property of a first light source in a reference measuring device; obtaining a second measurement of the first property of the first light source in a testing measuring device; determining the difference between the first measurement and the second measurement; and determining an adjusted standard value based on a correlation between the first measurement and the second measurement.

主权项

1. A method, comprising:
obtaining a first color measurement of a first light source in a reference measuring device, the first measurement defining a first point within a first area on a color space diagram, the first area defining a color criterion; obtaining a second color measurement of the first light source in a testing measuring device, the second measurement defining a second point on the color space diagram; determining a vector difference between the first point and the second point; determining a second area on the color space diagram by shifting the first area according to the vector difference; obtaining a third color measurement of a second light source in the testing measuring device, the third color measurement defining a third point on the color space diagram; and determining whether the second light source meets the color criterion based on whether the third point is in the second area.