| 摘要 |
The invention provides a measurement device and a measurement method which can measure optical performances of phosphor in a shorter time. The measurement device (1) has a light source (52) for irradiating excitation light to the phosphor; a light reception portion (10) for receiving light of the excitation penetrating the phosphor and fluorescent light generated under excitation of the excitation light, and a detection portion (200) for detecting the light received by the light reception portion. The light reception portion (10) comprises a shell (12) having a specified length in the irradiation direction of the excitation light, a light diffusion portion (14) arranged on the shell at one side of the phosphor, and a window arranged one the shell at the side opposite to the light diffusion portion and used for guiding incident fluorescent light tp the detection portion. |
