Optical Glass - HOYA OPTICS

Optical Glass hoya CORPORATION USA OPTICS DIVISION Optical Glass 1. Designation of Glass Group 2. Optical Refractive Index*..5 Dispersion* and Abbe-number*..5 Dispersion Relative Partial Dispersion and Abnormal Temperature Coefficient of Refractive Index ( n/ T)..6 Temperature Coefficient of Optical Path Length (ds / dT)..7 Stress- Optical Coefficient (B)..7 Internal Transmittance* ( )..8 Coloration Code* ( 80/ 5)..8 3. Chemical Latent Intrinsic Chemical Durability to Dimming Resistivity (Water Durability by the Powdered Method* (Dw))..10 Staining Acid Durability by the Powdered Method* (DA)..10 Staining Resistivity by the Surface Method (TBlue).

Optical Glass 1. Designation of Glass Type 1.1 Group Designation Optical glasses are classified by their main chemical components and are identified

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