Clear B270 Optical Glass Window

clear b270 optical glass window 


According to the table below details on other attributes:

? Table 1 ?
Optical properties	Transmittance
Refractive  index	1.51680
Abbe number	63.96

 

? Table  2 ?
Mechanical properties	The standard value
Density	2.51g/cm3
Knoop  hardness	610kg/mm2
Young's modulus  E	82 x 103kN/mm2
Poisson's ratio	0.21

 

? Table 3  ?
Thermal  performance	The standard value
Softening  point	719°C
Annealing point	657°C
strain  point	624°C
Thermal conductivity	1.1W/m.°C
Specific  heat	879J/kg.°C
The coefficient of the rmal expansion	7.1×10E-6/K

Technical parameters :
 
Some of the description about the products :       
         B270 belongs to colorless transparent optical glass, chemically stable, the transmission of light is better, general customers receive the goods don't need to grinding or polishing, compared with bk7, B270 is similar to the purpose and nature, but B270 finish without good bk7, so relatively speaking.
         Is mainly suitable for photographic equipment, instrumentation, optical instruments, medical equipment, teaching equipment, slide projector, projector lamps, ultraviolet analyzer, airport, military industry, digital products and other high-end optical equipment and high-grade crystal crafts.
 


 
  Our Services
 
1, OEM service
2, produce per customers' request such as design & package & printing logo
3, special package for fragile products to make sure no broken in transportation
4, 8 years golden supplier.
5, 0% compain feedback.
6, 100% good reputation.
 
 
Company Information
 
HIGHBORN is one of the leading high quality quartz glass and precise ceramics manufacturer and supplier in China.
 
HIGHBORN has always been a defining force in the sale and fabrication of quartz glass within the semi-conductor, chemical, solar Energy and precise ceramics within semi-conductor , solar energy, textile, electronic, and laser industries.
Not only have we mastered the fabrication technology, our strength has always been based around listening to and understanding our customer's requirements and expectations.
 
Continuous improvement in all areas of our business is key to our growth. What is equally important to us is maintaining in business, our inherent family values of trust, faimess and respect to our employees, suppliers and customers.
 
 
FAQ
 
1. Q: How can I get some samples?
A: If have sample in stock, we can offer it free based on the freight charge collected. If it is need to be customized, we will charge some fees without profit.
 
2. Q:How can I trust you?
A:We have more than 10 years experience to own good reputation.
 
3. Q: Terms of payment?
 L/C, D/A, D/P,T/T, Western Union, Money Gram are all ok, but maybe some of these are limited for special countries.