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Posicionar o projector 15
Obter o tamanho ideal de projecção de imagem
A distância entre a lente do projector e o ecrã, a definição do zoom e o formato do vídeo
influenciam o tamanho da imagem projectada.
Dimensões da projecção
Consulte "Dimensões" na página 55 para o centro das dimensões da lente deste projector
antes de calcular a posição adequada.
A proporção do ecrã é 4:3 e a imagem projetada é 4:3
Por exemplo, se utilizar um ecrã de 120 polegadas, a distância de projecção recomendada é
de 4755 mm, com um desvio vertical de 183 mm.
Se a distância de projecção medida é de 6,0 m (6000 mm), o valor mais próximo na coluna
"Distância a partir do ecrã (mm)" é 5943 mm. Quando se olha através dessa linha vê-se
que é necessário um ecrã de 150 polegadas (cerca de 3,8 m).
Todas as medidas são aproximadas e podem variar consoante os tamanhos reais.
A BenQ recomenda que, caso pretenda instalar permanentemente o projector, teste previamente o tamanho e
distância de projecção utilizando o projector no local onde vai ser instalado, para permitir ter em conta as
características ópticas do projector. Isto ajudará a determinar a posição exacta de montagem, para que seja a
mais adequada para o local de instalação.
Dimensão do ecrã Distância a partir do ecrã (mm)
Desvio
vertical
(mm)
Diagonal
L
(mm)
A
(mm)
Comprimento
mín
Média
Comprimento
máx
Polegada mm (zoom máx) (zoom mín)
30 762 610 457 1132 1189 1245 46
40 1016 813 610 1509 1585 1660 61
50 1270 1016 762 1887 1981 2075 76
60 1524 1219 914 2264 2377 2491 91
80 2032 1626 1219 3019 3170 3321 122
100 2540 2032 1524 3774 3962 4151 152
120 3048 2438 1829 4528 4755 4981 183
150 3810 3048 2286 5660 5943 6226 229
200 5080 4064 3048 7547 7925 8302 305
250 6350 5080 3810 9434 9906 10377 381
300 7620 6096 4572 11321 11887 12453 457
A
L
Distância de projecção
Centro da lente
Ecrã
Desvio vertical
Ecrã diagonal 4:3
15


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