| 摘要 |
The apparatus, designed to reflect a coloured image onto a horizontal surface, consists of a black box (1) with an aperture (2) containing a lens (3) in a holder (4), and a housing (10) containing a mirror (11). The working surface of the apparatus comprises a section of the black box on which the receiving surface (9) is placed, and the mirror is placed at an angle of 45 degrees to the vertical axis of the lens, while the lens holder acts as a coupling between the black box and the mirror housing.
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