| 摘要 |
PROBLEM TO BE SOLVED: To clearly imprint photographing data by simple constitution regardless of a background color by attaching a color filter making the wavelength of light transmitted through the light transmissive mask of a photographing data module into two or more kinds of the wavelength to the light transmissive mask. SOLUTION: A liquid crystal data module is provided with plural 7-segment elements 24. Then these segments are selectively changed to be transmissive and non-transmissive according to the photographing data so as to produce the required photographing data. The filter 25 for making the transmitted wavelength into two kinds of the wavelength is attached to the respective segments of the elements 24. Then, a part to which the filter 25 is not attached is a transparent part 26 through which the light of an imprinting light source is transmitted as it is. As the combination of the colors (wavelength) transmitted through the filter 25 and the transparent part 26, two colors such as orange and blue or orange and green are used, for example by considering the color of the imprinting light source so that one of them is conspicuous in the background color even when the other is identical to the background color.
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