| 摘要 |
PROBLEM TO BE SOLVED: To obtain a lighting system, suitable for a still camera, a video camera, etc. which can illuminate a subject with the luminous flux from a light source means with high illuminating efficiency and the photographing device using it. SOLUTION: This lighting system has a light source means, an optical prism 2 which is arranged in front of the light source means and has a surface for totally reflecting at least a part of incident luminous flux, and an optical panel 1 which is arranged in front of an optical prism 3 and also has a pattern surface with refracting power on the light projection part side of the optical prism 2, and the optical panel 1 has a pattern surface with refracting power canceling the refracting power of the respective parts of the pattern surface with the refracting power, and the relative position between the pattern surface on the optical projection part side of the optical prism 2, and the optical panel 1 is made displaceable to vary irradiation angle of the luminous flux emitted from the optical panel 1. |
