| 摘要 |
PROBLEM TO BE SOLVED: To reduce a size, to reduce a cost, and to shorten a measuring time. SOLUTION: This two-dimensional spectral luminance meter is provided with an optical system (an objective optical system 2 and a relay lens 6) for taking a light beam La in from a two-dimensional light source l to form an optical image (the first iamge 2a and the second image 6a), a WBPF 12 (transmission wavelength variable type filter) having a spectral transmission characteristic differing a transmission wavelength in response to a transmission portion of the light beam La, a scanning WBPF 10 for holding the WBPF 12 scannably in an optical path forming the optical image, and an imaging element 7 for picking up the second image 6a formed by the light beam La transmitted through the WBPF 12 in each scanning step position of the WBPF 12, and for acquiring a plurality of images different in spectral sensitivities of respective picture elements in every of the respective scanning step positions. COPYRIGHT: (C)2006,JPO&NCIPI
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