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Germany AllE (ARRI) is a pioneer in global film and television lighting lamps and lanterns,its superior products have been leading the development of film and television industry.Either high color temperature lamps or low color temperature lamps(200W-12000W),the window glass lenses ALLE company chooses the world's best glass-GermanyBorofloat®33.the unique excellent characteristics of Borofloat®33 shows incisively and vividly in different color temperature point-blank lamp(PAR lamp)
• Product advantage features:
• Film and television lighting lens glass technology parameters:
• film and television lighting lens performance parameters
We can do according to customer different requirement , high technical products and provide excellent service .
• Product advantage features:
- High heat-resistance
- Low expansion coefficient,no Embrittlement in cold shocking or heating shocking
- Excellent optical transmittance
- Extra low color temperature decay
- Excellent scratch resistance and abrasion resistance
- Excellent acid alkaline proof
• Film and television lighting lens glass technology parameters:
- material: Borofloat®33
- Product type:UV-CUT,NON UV-CUT
- Standard thickness:3.3mm,5.0mm(customized)
- Power:200W,575W,1200W,2500W,4000W,6000W,12000W
- Standard size:Φ135,Φ175,Φ200,Φ250,Φ265,Φ300,Φ335,Φ350,Φ420,Φ450,Φ500,Φ650(customized)
• film and television lighting lens performance parameters
| Technical parameters: | |
| Density(25ºC) | 2.2g/cm2 |
| Expansion coefficient(ISO 7991) | 3.25´10-6k-1 |
| Light transmittance | 91% |
| Softening point | 820ºC |
| Short-term use <10H | 550ºC |
| Long-term use >=10H | 450ºC |
| The refractive index(587.6nm) | 1.47140 |
| Knoop hardness | 480 |
We can do according to customer different requirement , high technical products and provide excellent service .