Este artículo fue escrito en 1989, que trata de la construcción de los tubos de imagen de televisión que se utilizaron en el momento. El artículo es importante hoy por su valor histórico.

Muchos lectores no se imaginan cuánta tecnología hay detrás de la fabricación de un simple cinescopio: recientemente visitamos la fábrica de cinescopios de Philips en São José dos Campos, San Pablo donde pudimos constatar toda la tecnología que exige la fabricación de este componente.

En esto artículo, cortesía de Philips, describiremos con imágenes todo el proceso de fabricación de un cinescopio. Cada etapa presentada es resultado no sólo de estudios profundos que llevan a equipos de alta precisión, como también del cuidado que se toma en el sentido de proveer un producto técnicamente perfecto. En ocasión de nuestra visita también se presentó el FST (Flat and Square) un cinescopio que resulta de una evolución de casi 100 anos para proveer lo mas avanzado para la televisión en colores en la actualidad.

Este cinescopio presenta una imagen realmente rectangular, sin bordes curvos y cantos redondeados, con pantalla totalmente plana. El cinescopio convencional posee cantos redondeados y bordes laterales curvos, lo que reduce el área útil de la imagen y le da un aspecto anticuado, dificultando los proyectos de .televisores con líneas estilizadas. Las superficies curvas reflejan la luz en todas direcciones, y por lo tanto, se reflejan en dirección del espectador fuentes de luminosidad ubicadas en casi todas partes del ambiente delante de la pantalla, aumentando la incomodidad visual del que mira.

El cinescopio FST solamente refleja la luz proveniente de fuentes situadas dentro de un ángulo reducido, eliminando las interferencias de la luz ambiente y aumentando la comodidad. Para el fabricante del televisor esto significa también la posibilidad de presentar productos a la altura de las exigencias del público. En las páginas que siguen presentamos el proceso de fabricación de un cinescopio.

 

 

 

 

 

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