| 摘要 |
PURPOSE: To provide an optical filter capable of obtaining a projected picture in which a color of an object is reproduced faithfully without being influenced by the color temp. of a light source. CONSTITUTION: In the optical filter in which a colored layer 4 consisting of a resin and a colorant is provided on one surface of a transparent base material 3, the colorant is composed of a blue colorant whose (x) value in XYZ displaying system chromaticity diagram is within a range of 0.15-0.26 and (y) value is within a range of 0.11-0.28 and a red colorant whose (x) value is within a range of 0.37-0.46 and (y) value is within a range of 0.25-0.30, and a hue is applied so that a chromaticity coordinates of a light emitted from a light source may be in the point of ordinates within a deviation of ±0.010 from a black body locus. |
