- Product Details
- {{item.text}}
Quick Details
-
Place of Origin:
-
Shanghai, China
-
Brand Name:
-
LONGWAY
-
Model Number:
-
LW1609201453, LW1609201453
-
Product Name:
-
fresnel lens
-
Surface:
-
Polished
-
Coating:
-
available
-
Processing:
-
grinding and polishing
-
Type:
-
Antique
-
OEM:
-
available
-
Location:
-
Shanghai
-
Brand:
-
LONGWAY
Quick Details
-
Usage:
-
Optical
-
Structure:
-
fresnel
-
Shape:
-
Aspheric
-
Place of Origin:
-
Shanghai, China
-
Brand Name:
-
LONGWAY
-
Model Number:
-
LW1609201453, LW1609201453
-
Product Name:
-
fresnel lens
-
Surface:
-
Polished
-
Coating:
-
available
-
Processing:
-
grinding and polishing
-
Type:
-
Antique
-
OEM:
-
available
-
Location:
-
Shanghai
-
Brand:
-
LONGWAY
Professional standard high quality large fresnel lens
Product Description
| Name | optical glass |
|
Material |
Optical Glass,Bk-7,Pyrex,Fused Silica,Sapphire,quartz |
| Diameter Tolerance | +0/-0.2 mm |
| Thickness Tolerance | +/-0.2 mm |
| Cler Aperture | over 90% |
| Flatness | ^/4 @632.8nm |
| Surface Quality | 80/50~10/5 scratch and dig |
| Transmission | above 92% |
| Chamfer | 0.1-0.3 mm x 45 degree |
| Focal Length Tolerance | +/-2% |
| Back Focal Length Tolerance | +/-2% |
| Coating | available |
| Usage | opticl system, photographic sysem, Lighting system,Electronic apparatuse.g.laser,camera,monitor,projector,magnifier,telescope,polarizer,electronic instrument,led etc. |
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