Light collection optics for measuring flux and spectrum from light-emitting devices

摘要

Systems and methods for accurately measuring the luminous flux and color (spectra) from light-emitting devices are disclosed. An integrating sphere may be utilized to directly receive a first portion of light emitted by a light-emitting device through an opening defined on the integrating sphere. A light collector may be utilized to collect a second portion of light emitted by the light-emitting device and direct the second portion of light into the integrating sphere through the opening defined on the integrating sphere. A spectrometer may be utilized to measure at least one property of the first portion and the second portion of light received by the integrating sphere.

主权项

1. An apparatus, comprising:
an integrating sphere for directly receiving a first portion of light emitted by a light source through an opening defined on the integrating sphere; a light collector for collecting a second portion of light emitted by the light source and directing the second portion of light into the integrating sphere through the opening defined on the integrating sphere, the light collector being retractable with respect to the integrating sphere; and a spectrometer for measuring at least one property of the first portion and the second portion of light received by the integrating sphere.