| 摘要 |
<p>PURPOSE:To improve color reproductivity by providing an unnecessary wavelength cutting means and a color segregation filter having a light cutting wavelength band and formed so as to make higher the transmissivity of an unnecessary wavelength band to a sensor than the transmissivity of the light cutting wavelength band except the unnecessary wavelength band to the sensor. CONSTITUTION:The title device is provided with the unnecessary wavelength cutting means and the color segregation filter having the light cutting wavelength band including the unnecessary wavelength band and formed so as to make higher the transmissivity of the unnecessary wavelength band to the sensor than the transmissivity of the light cutting wavelength band except the unnecessary wavelength band to the sensor. Thus, reflection rate can be lowered at atmost overlapped wavelength between dielectric multilayers having different characteristics so that the width of an absorption wavelength band by means of the color segregation filter can be enlarged. Thus, color reproductivity can be improved.</p> |
