US2006076697A1PendingUtilityA1
Planar lens and method for fabricating the same
Assignee: SAMSUNG ELECTRONICS CO LTDPriority: Nov 14, 2002Filed: Nov 16, 2005Published: Apr 13, 2006
Est. expiryNov 14, 2022(expired)· nominal 20-yr term from priority
G02B 5/1814G02B 3/00G02B 3/08B29D 11/00
44
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Claims
Abstract
A planar lens capable of compensating for chromatic aberration and which is easy to manufacture and enables easy assembling of optical pickups and a method for fabricating the planar lens are provided. The planar lens includes a transparent substrate with a lens cavity in a surface of the transparent substrate, and a lens element formed in the lens cavity with a first refracting surface in contact with the bottom of the lens cavity and a second diffracting surface having a diffraction grating opposite to the first refracting surface.
Claims
exact text as granted — not AI-modified1 . A planar lens comprising:
a transparent substrate with a lens cavity in a surface of the transparent substrate; and a lens element formed in the lens cavity with a first refracting surface in contact with the bottom of the lens cavity and a second diffracting surface having a diffraction grating opposite to the first refracting surface.
2 . The planar lens of claim 1 , wherein the lens element is formed of a higher refractive index material than a material for the transparent substrate.
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