Invention Grant
US07663744B2 Integrating photometer for measuring total flux of light generated from light source to be measured, and method for measuring total flux of light through use of the same
有权
用于测量从被测量光源产生的光的总光通量的积分光度计，以及通过使用该光度计测量总光通量的方法
- Patent Title: Integrating photometer for measuring total flux of light generated from light source to be measured, and method for measuring total flux of light through use of the same
- Patent Title (中): 用于测量从被测量光源产生的光的总光通量的积分光度计，以及通过使用该光度计测量总光通量的方法
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Application No.: US12252576Application Date: 2008-10-16
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Publication No.: US07663744B2Publication Date: 2010-02-16
- Inventor: Kazuaki Ohkubo
- Applicant: Kazuaki Ohkubo
- Applicant Address: JP Osaka
- Assignee: Otsuka Electronics Co., Ltd.
- Current Assignee: Otsuka Electronics Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Ditthavong Mori & Steiner, P.C.
- Priority: JP2007-277771 20071025
- Main IPC: G01J1/00
- IPC: G01J1/00 ; G01J1/04
Abstract:
A mirror is provided with a light source window and an illumination window each establishing communicative connection between an inner face side and an outer side of a hemispherical unit. The light source window is an opening to which a light source OBJ to be measured is attached mainly. The illumination window is an opening for guiding a flux of light from a correcting light source used for measurement of self-absorption toward the inner face of the hemispherical unit. A self-absorption correcting coefficient of the light source OBJ is calculated based on an illuminance by a correcting flux of light in a case where the light source to be measured OBJ in a non-light emitting state is attached to the light source window and an illuminance by a correcting flux of light in a case where a calibration mirror is attached to the light source window.
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