| The darkest sectors of an alpha channel are transparent while white ones are lightproof and gray ones bring out different levels of transparency. |
| Its high-density lightproof covering yields an essential improvement of the sound quality. |
| By placing the camera inside our lightproof box we can take a picture of the image being projected onto the back wall of our pinhole camera. |
| The film will obviously come in a lightproof bag, but I am going to need that to hold onto the original film that is not shot yet. |
| The brilliant lightproof colours of the paper Sirio Color contribute to the distinctiveness of the paper bag. |
| Accordingly, in the present invention, the size of the lightproof box is fixed in order to solve the problem. |
