Plastic optical components

Optical: systems and elements – Lens

Reexamination Certificate

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Details

C359S513000, C359S514000, C359S515000, C359S831000, C359S838000, C359S885000, C359S893000, C359S894000

Reexamination Certificate

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07031070

ABSTRACT:
The plastic optical component includes a main body and a transparent moisture-proof coating provided on all surfaces of the main body, the moisture-proof coating satisfying the following relation (1):in-line-formulae description="In-line Formulae" end="lead"?(D1/d)×(L/D2)<10   (1)in-line-formulae description="In-line Formulae" end="tail"?where D1(mm2/s) is a water diffusion coefficient of a first material of which the moisture-proof coating is made, d (mm) is a thickness of the first material, D2(mm2/s) is the water diffusion coefficient of a second material of which the main body is made, and L (mm) is an average thickness across an optical surfaces of the second material.

REFERENCES:
patent: 5905599 (1999-05-01), Nomura et al.
patent: 6278554 (2001-08-01), Aratani et al.
patent: 0 580 155 (2004-01-01), None
patent: 11-109107 (1999-04-01), None
patent: 2000-137166 (2000-05-01), None
patent: 2002-22903 (2002-01-01), None
patent: 2002-14802 (2002-05-01), None
patent: 2002-202401 (2002-07-01), None

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