The invention discloses a
light attenuation device capable of continuously adjusting the
light intensity. The
light attenuation device includes a
light source, two or more than two integrating spheres; wherein each
integrating sphere is provided with a light inlet hole and a light outlet hole, the integrating spheres are in sequential
cascade connection,i.e., the light output hole of the previous
integrating sphere is connected to the light inlet hole of the next
integrating sphere, each connection position between the two integrating spheres which are in sequential
cascade connection, is provided with an electronic changeable diaphragm which is used for adjusting the
radiation flux of light entering the integrating spheres and light emitted from the integrating spheres. The
light attenuation device capable of continuously adjusting the
light intensity can achieve sectionally continuous attenuation and quantitative adjustment of the
light intensity, the attenuated light intensity is uniformly distributed, and the adjustment range of the
attenuation coefficient is wide; the light attenuation device capable of continuously adjusting the light intensity can be applied to a light attenuator capable of widely, continuously and quantitatively adjusting the light intensity, or can be applied to
light detection sensitivity detection of a device or equipment,
light source radiant quantity and
color measurement, spectral characteristic analysis, and the like.