| Sign In | Join Free | My burrillandco.com |
|
Middle Index 1.56 Photochromic Film Hard Multi Coated Photochromic Lenses I. Specification Refractive Index Diameter Monomer 1.56 65/72 MM NK55 ( imported from Japan) Specific Gravity Abbe Value Transmission 1....
... doped (5 to 40 ohm cm) to prevent absorption bands within the transmission waveband. Silicon has a lower refractive index than germanium and has a lower density that makes for less weighty optical designs. ...
... crystal glass is relatively lighter and cheaper compared to other glass crystals. Its low production cost, low-dispersal properties, high refractive index...
1.56 HC Transition Photochromic Semi Finished Lens Blanks For Outdoor Activities I. Technical Data: Refractive Index(25ºC): n(d)=1.56; n(e)=1.558 Abbe Value: 36.8 Specific Gravity(25ºC): 1.27 Color: Brown, Grey...
Withour Coated 1.56 Flat-top Uncoated Photochromic Prescription Eyeglass Lenses For Far And Near Vision I. Specifications: Transmission Diameter Refractive index Abbe value Specific Gravity 98% 70mm 1.56 38 1.2...
.../360 for university/college Astronomical observation experiment Products Description The Main technical Index: Details: Astronomical telescope optical system: refraction type The primary mirror diameter: 50-...