| 摘要 |
PURPOSE:To improve the contract in an outside bright place by connecting trapezoidal projection parts which are printed in black to the entire surface part including projection-side lenses and slanting parts. CONSTITUTION:Even the slanting parts of the trapezoidal projection parts 2 connected to the projection-side lenses 4 are painted in black to transfer the entire surfaces of the projection parts 2 and print them in black by relief printing, a roll method, etc. Then, R, G, and B light beams from respective electron guns in a device are converged by incidence-side lenses 3 and projected from the projection-side lenses 4 as a light beam of specific color. An external light beam 5 from the front is absorbed by the entire area of the trapezoidal parts and not reflected, and a slanting light beam 6 is also absorbed by not only the peak parts, but also the slanting parts of the trapezoidal parts and not reflected.
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