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HOLOGRAPHIC screens
CIMEX IMPORTED EXCLUSIVELY FOR ITALY
high gain RIGID holographic screens HB: High Brightness,
The HB-FRESNEL-lens screens are screens for rear projection based on optical properties of Fresnel lenses* that capture the image and the focus directly toward the observer by ensuring a wide angle of vision, brilliance, clarity and uniformity of images and avoiding dispersions and hot spots.
The rear projection HB FRESNEL screen consists of thousands of concentric lenses each of which has a specific and different angles of curvature to capture the light of the projector and forwards it directly to the observer.
The projector-screen distance may therefore be much smaller than required for traditional holographic screen.
* Fresnel lenses are "flat" lenses that retain all the focusing features of the traditional lenses' curvature but with minimum size and weight. The result is obtained by cutting the profile of a traditional spherical lens in a series of concentric rings: the curvature is reduced to a flat surface but preserves all the dioptric power of the curvature. |
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CIMEX HB FRESNEL LENS
TECHNICAL DATA |
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SCREEN DOMENTIONS |
67" |
72" |
84" |
90" |
96" |
100" |
120" |
125" |
140" |
150" |
160" |
height [mm] |
1060 |
1123 |
1305 |
1422 |
1514 |
1575 |
1880 |
1925 |
2194 |
2346 |
2500 |
width[mm] |
1395 |
1488 |
1732 |
1880 |
2001 |
2083 |
2489 |
2559 |
2905 |
3108 |
3312 |
thickness[mm] |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
7 |
7 |
7 |
7 |
weight[kg] |
8 |
9 |
12 |
14 |
20 |
21 |
30 |
32 |
58 |
66 |
75 |
AREA PROIETTABILE |
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hieight[mm] |
1022 |
1097 |
1280 |
1396 |
1463 |
1524 |
1828 |
1874 |
2134 |
2286 |
2440 |
width[mm] |
1358 |
1463 |
1706 |
1854 |
1950 |
2032 |
2438 |
2508 |
2845 |
3048 |
3252 |
GAIN |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
projector-screen distance |
1500-2500 |
2200-3300 |
2200-3300 |
2200-3700 |
2300-4500 |
2600-4500 |
2600-4900 |
2600-5200 |
3000-5000 |
3000-5000 |
3000-5000 |
focal distance |
850 |
1800 |
1800 |
1800 |
1800 |
1800 |
2800 |
2800 |
3500 |
3500 |
3500 |
Fresnel PITCH [mm] |
0.25 |
0.33 |
0.33 |
0.33 |
0.33 |
0.33 |
0.33 |
0.33 |
0.8 |
0.8 |
0.8 |
half gain angle - horizontal |
33° |
33° |
33° |
33° |
33° |
33° |
33° |
33° |
33° |
33° |
33° |
half gain angle - vertical |
33° |
33° |
33° |
33° |
33° |
33° |
33° |
33° |
33° |
33° |
33° |
MATERIAL |
acrylic |
acrylic |
acrylic |
acrylic |
acrylic |
acrylic |
acrylic |
acrylic |
acrylic |
acrylic |
acrylic |
COLOUR |
dark |
dark |
dark |
dark |
dark |
dark |
dark |
dark |
dark |
dark |
dark |
MATT surface |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
ANTI-REFLECTIVE surface |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
ON REQUEST:
We can produce HB - FRESNEL lens with any itermediate dimentions or ratio or with different forms.
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