| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical characteristics measuring apparatus and an optical characteristics measuring method for highly accurately measuring the transmittance of optical elements without being affected by stray light. SOLUTION: The optical characteristics measuring apparatus and the optical characteristics measuring method are provided with an interference optical system capable of generating interference fringes by reciprocating, transmitting luminous flux of an element to be measured 9 and reference luminous flux; a CCD camera 12 for imaging the interference fringes; a shutter 14a for removing the reference luminous flux; and a shutter 14b for removing the reciprocating, transmitting luminous flux. The CCD camera 12 images only the reciprocating, transmitting luminous flux of the element to be measured 9 acquired by removing the reference luminous flux by the shutter 14a to take the luminance of images acquired by the imaging as the amount of light transmitted through the element to be measured 9. The CCD camera 12 images only reference luminous flux acquired by removing the reciprocating, transmitting luminous flux by the shutter 14a, which removes reciprocating, transmitting luminous flux of the element to be measured 9, to take the luminance of images acquired by the imaging as the amount of reference light to measure transmittance T. COPYRIGHT: (C)2008,JPO&INPIT
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