Lens modules and fabrication methods thereof
AssigneesVisEra Technologies Company Limited, OmniVision Technologies, Inc.
InventorsChien-Pang Lin, San-Yuan Chung, Weng-Chu Chu
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Abstract
According to an embodiment of the present invention, a lens module is provided, which includes a first lens assembly including a first patterned substrate, a first recess formed from a first surface of the first patterned substrate, a first lens element disposed in the first recess, and a second lens element disposed on the first patterned substrate, wherein the second lens element aligns along an optical axis through the first lens element.
Claims20
A lens module, comprising:
- a first lens assembly, comprising
- a first patterned substrate, wherein a thickness of the first patterned substrate is less than 300 μm;
- a first recess formed from a first surface of the first patterned substrate;
- a first lens element disposed in the first recess;
- and
- a second lens element disposed on the first patterned substrate, wherein the second lens element aligns along an optical axis through the first lens element.
A method for fabricating a lens module, comprising:
- forming a first lens assembly, the forming of the first lens assembly comprising:
- providing a first substrate having a first surface and a second surface;
- removing a portion of the first substrate from the first surface of the first substrate to form a first recess;
- disposing a first lens element in the first recess;
- and
- disposing a second lens element on the first substrate, wherein the second lens element aligns along an optical axis through the first lens element;
- forming a second lens assembly, wherein the forming of the second lens assembly comprises:
- forming a plano-plano substrate having a first side and a second side;
- and
- forming a third lens element on the first side of the plano-plano substrate, wherein the third lens aligns along the optical axis through the first lens element;
- disposing the first lens assembly on the second lens assembly;
- and
- forming an adhesion layer between the first lens assembly and the second lens assembly.
A lens module, comprising:
- a first lens assembly, comprising:
- a first patterned substrate;
- a first recess formed from a first surface of the first patterned substrate;
- a first lens element disposed in the first recess;
- and
- a second lens element disposed on the first patterned substrate, wherein the second lens element aligns along an optical axis through the first lens element;
- a second lens assembly aligned with and stacked underlying the first lens assembly, wherein the second lens assembly comprises:
- a plano-plano substrate having a first side and a second side;
- a third lens element disposed on the first side of the plano-plano substrate, wherein the third lens aligns along the optical axis through the first lens element;
- and
- an adhesion layer interposed between the second lens assembly and the first lens assembly.
A lens module, comprising:
- a first lens assembly, comprising:
- a first patterned substrate;
- a first recess formed from a first surface of the first patterned substrate;
- a first lens element disposed in the first recess;
- a second lens element disposed on the first patterned substrate, wherein the second lens element aligns along an optical axis through the first lens element;
- and
- a second recess formed from a second surface of the first patterned substrate, wherein the second lens element is disposed in the second recess.
Dependencies are inferred from the claim text.