| 摘要 |
PURPOSE:To obtain the photoelectric converter in which a light receiving rate is improved by minimizing the effect of noise to the utmost. CONSTITUTION:The converter is provided with a 1st concave mirror 50 obtained by rotating a curve whose focus F is resident at a prescribed distance from an axial line Z around the axial line Z and with a 2nd concave mirror 51 obtained by rotating a curve whose focus is the same as the focus F and tying a point away from the axial line Z by a certain distance and the axial line Z around the axial line Z. Then, the 2nd concave mirror 51 is arranged in the inside of the 1st concave mirror 50 and a light receiving element 53 is arranged in a reflected optical path of the 2nd concave mirror 51. |
