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US 6,724,472 B2Granted
Light monitoring device
AssigneeUshikata Mfg. Co., Ltd.
InventorAkio Kubo
Life of this patent
Estimating the term…
Abstract
Object: provide an accurate monitor of light of even intensity light. Construction: A beam splitter (4) being fixed on a base (1) in the path of a main beam (2) of a light system, a reflecting mirror (5) being fixed on a side of the beam splitter (4), an inlet 6a of an integrating sphere (6) is provided at an opposite side of the beam splitter (4), and a light sensor (8) is provided at a reflecting surface of the integrating sphere (6).
Claims3
A light monitoring system for measuring light comprising;
- a beam splitter (4) fixed in a box (1) in the path of a main beam (2);
- a reflecting mirror (5) on one side of said beam splitter (4) for reflecting light received from said beam splitter (4);
- an integrating sphere (6) having an inlet (6a) and a reflecting surface (6b) for receiving light reflected from said reflecting mirror (5), said integrating sphere (6) being on a side of said main beam (2) opposite said reflecting mirror (5);
- and
- a light sensor (8) in said integrating sphere for receiving reflected light passing through said integrating sphere inlet (6a);
- whereby optimized light can be monitored and accurately measured.
3 more elements
Dependencies are inferred from the claim text.