 Crystal Thermal Diffusion Panel
Thermal diffusion panel is the key parts of Projector optical engine , which can diffuse the projector hot and let it work well… By Bopteq high precision double sides polishing, precision cutting, and combined technology, our Crystal thermal diffusion panel are used LCD & Lcos projector.
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material: optical crystal, optical glass
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Dimension tolerance ±0.1mm, thickness tolerance: ±0.05mm
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Transmission: AR Lambda=20-680nm Tave>94.5%; Lambda=50-650nm Rave<0.4%
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Surface defects: dot≤100µm,scratch≤10µm, edge≤0.5mm ,flatness≤3 newton, contact angle <50degree
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Reliability: high temperature 65℃, high humidity 90% 500H
high temperature storage:+85℃ 500H
low temperature storage:-40℃ 500H
thermal shock: -40℃(2.5H)~+85℃(2.5H) 10 cycles
Standard specification
| Term |
specification |
| Diameter(Tolerance) |
40 mm max. ( 0.2 mm) |
| Thickness(Tolerance) |
＜0.3 mm min. ( 0.1mm) |
| Eccentricity |
±1° |
| Chip dot |
＜100 μm |
| single side AR coating |
< 1 % (420 to 680 nm) | |
| Size |
specification |
| 36×30 |
0.7 |
| 28×22 |
0.5 to 0.7 |
| 25.5×25.5 |
2 |
| 23.5×20 |
0.5 to 1.4 |
| 20×18 |
0.5 |
| φ26×16 |
1.4 | | | 
