Photographic roll film
AssigneeFuji Photo Film Co., Ltd.
InventorTeruyoshi Makino
Life of this patent
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Abstract
A photographic roll film such as Brownie film is placed on a backing paper or a leader paper. The roll film is joined at its one or both ends to the backing paper or leader paper with a jointing tape, which has on its surface a bar code composed of light absorbing bars and light reflecting spaces. The light absorbing bars show a reflectance of less than 30% and a glossiness of less than 20%, and the light reflecting spaces show a reflectance of more than 50% and a glossiness of less than 35%. Further, the total of the glossiness of light absorbing bars and the glossiness of light reflecting spaces is less than 50%. The reflectance and glossiness both are determined utilizing a light in a wavelength region other than a light sensitive wavelength region of the roll film.
Claims6
A photographic roll film placed on one of a light-shielding backing paper and a light-shielding leader paper, said roll film being joined at one of its one end and both ends to the one of backing paper and leader paper with a jointing tape, in which the jointing tape has on its surface a bar code, said bar code comprising:
- light absorbing bars and light reflecting spaces, the light absorbing bars having a reflectance of less than 30% and a glossiness of less than 20%, the light reflecting spaces having a reflectance of more than 50% and a glossiness of less than 35%, and a total of the glossiness of the light absorbing bars and the glossiness of the light reflecting spaces is less than 50%, the reflectance and glossiness both being for a light in a wavelength region other than a light sensitive wavelength region of the roll film.
Dependencies are inferred from the claim text.