公开(公告)号：US12247881B2

公开(公告)日：2025-03-11

申请号：US17171458

申请日：2021-02-09

Applicant: Sapphire IP, Inc.

Inventor： Michael Piscitelli

IPC: G01J3/50 ,  G01J1/44 ,  G02B5/10

Abstract: An apparatus is provided for measuring far-field luminous intensity and color characteristics of a light source that includes a lamp test location for receiving a lamp for testing and a mirror positioned in a fixed light receiving position relative to the lamp test location and positioned in a fixed light transmitting position for reflecting a light beam from the lamp at a predetermined angle relative to the light receiving position. A measurement screen is positioned in a location relative to the mirror to receive the parabolically-condensed light image reflected from the mirror at the predetermined angle and a light detector is positioned to capture a light image reflected from the measurement screen. The light detector is configured to convert the reflected light image on the measurement screen to a digital signal and output the digital signal. A computer is configured for receiving and processing the digital signal corresponding to the reflected light image and calibrated for measuring luminous intensity according to an algorithm programmed in the computer.