Complex lens
AssigneeHon Hai Precision Industry Co., Ltd.
InventorCharles Leu
Life of this patent
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Abstract
An embodiment of a complex lens (1) includes a central substrate (10), two opposite glass layers (12), and two opposite IR-cut layers (13). The substrate is made of transparent plastic, such as polycarbonate or polymethyl methacrylate. The glass layers are deposited on opposite surfaces of the substrate. The IR-cut layers are deposited on surfaces of the glass layers. The substrate has a spherical or an aspheric surface. The IR-cut layers have a function of filtering infrared rays, thereby improving the image-forming quality of the complex lens. The substrate is typically made of polycarbonate or polymethyl methacrylate. The glass layers are typically made of ZrO2—Y2O3 or SiC. Each IR-cut layer includes a plurality of films of Ti2O3 and SiO2.
Claims10
A complex lens, comprising:
- a substrate made of transparent plastic;
- a glass layer deposited on a surface of the substrate;
- and
- an IR-cut layer deposited on a surface of the glass layer;
- wherein the substrate comprises a spherical or an aspheric surface.
A lens assembly comprising:
- a substrate of said lens assembly;
- a glass layer laid on at least one surface of said substrate;
- and
- at least one layer laid on said glass layer for improving ability of said lens assembly.
A method to manufacture a lens assembly, comprising the steps of:
- molding a substrate of said lens assembly to form at least one desired surface thereon;
- depositing a glass layer on said at least one surface of said substrate;
- and
- depositing at least one light-treating layer on said glass layer for improving ability of said lens assembly.
Dependencies are inferred from the claim text.