A Sol-Gel Derived AR coating on Ophthalmic Lenses in the Visible Region

dc.contributor.author	Biswas, P. K
dc.contributor.author	Atta, A. K
dc.contributor.author	Ganguli, D
dc.date.accessioned	2005-01-11T10:34:03Z
dc.date.available	2005-01-11T10:34:03Z
dc.date.issued	1991
dc.identifier.citation	Kodaikanal Observatory Bulletins Series A, Vol. 11, pp. 77-80	en
dc.identifier.issn	0374-3632
dc.identifier.uri	http://hdl.handle.net/2248/220
dc.description.abstract	Deposition of antireflective coating in the visible region by the sol-gel spinning technique has been described in this communication. A 2-layer design, centred at 550 nm, was used. The design can be denoted as Glass/H/L/Air where H and L signify layers of ZrO/sub2/ and SiO/sub2/ respectively, having optical thickness in units of lamda/sub0/4/. The thickness were controlled by varying the concentrations of equivalent metal oxides in the prepared sols, and controlling the spinning rates. The deposition of films was carried out on both sides of ophthalmic lenses by the spinning techniques followed by baking at 500/sup0/C for 15 min. The transmission was found to be 99.7 plus or minus 0.1% in the wavelength region 525-575 nm	en
dc.format.extent	98761 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en
dc.publisher	Indian Institute of Astrophysics, Bangalore	en
dc.subject	Sol-gel	en
dc.subject	Antireflection coating	en
dc.subject	Ophthalmic lens	en
dc.title	A Sol-Gel Derived AR coating on Ophthalmic Lenses in the Visible Region	en
dc.type	Article	en