Method and apparatus for adjusting recess depth of a mold insert
AssigneeEssilor International
InventorsAhmed Drammeh, Zbigniew Tokarski
Life of this patent
Estimating the term…
Abstract
A mold device includes a first mold side configured to receive a substrate in a cavity and to couple with a second mold side, the first mold side including a sidewall and a gate, wherein the substrate is recessed in the first mold side at a substrate recess depth of 2 mm or greater, and wherein the substrate recess depth is a distance along the sidewall between a bottom of the gate and a surface of the substrate in a direction perpendicular to a line between the gate and a middle of the surface of the substrate, and wherein the bottom of the gate and a top of the sidewall are at distinct heights from the surface of the substrate.
Claims14
A mold device, comprising:
- a first mold side configured to receive a substrate in a cavity and to couple with a second mold side, the first mold side including a sidewall and a gate,
- wherein the substrate is recessed in the first mold side at a substrate recess depth of 2 mm or greater, and
- wherein the substrate recess depth is a distance along the sidewall between a bottom of the gate and a surface of the substrate in a direction perpendicular to a line between the gate and a middle of the surface of the substrate, and
- wherein the bottom of the gate and a top of the sidewall are at distinct heights from the surface of the substrate.
A method of forming a lens, comprising:
- adjusting a cavity surface of a first mold side, the first mold side configured to couple with a second mold side, the first mold side including a cavity, a sidewall, and a gate, the cavity surface being adjusted to a substrate recess depth of 2 mm or greater, the substrate recess depth being a distance along the sidewall between a bottom of the gate and a surface of a substrate in a direction perpendicular to a line between the gate and a middle of the surface of the substrate, the bottom of the gate and a top of the sidewall being at distinct distances from the surface of the substrate;
- and
- injecting a polymer into the coupled first mold side and second mold side via the gate.
Dependencies are inferred from the claim text.