Invention Grant
- Patent Title: Enhanced separation of injection molded microlenses for high volume manufacturing
-
Application No.: US13452851Application Date: 2012-04-21
-
Publication No.: US09434114B2Publication Date: 2016-09-06
- Inventor: Casimer M. DeCusatis , Lawrence Jacobowitz
- Applicant: Casimer M. DeCusatis , Lawrence Jacobowitz
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Steven Chiu
- Main IPC: B29D11/00
- IPC: B29D11/00 ; B29C33/44 ; B29C37/00 ; B29C35/08

Abstract:
A method and system for enhanced demolding of injection molded optical devices are disclosed. In one embodiment the system includes a metal moldplate without a coat of release layer and a curing device that generates high intensity pulses of UV light. The method includes: providing a moldplate made of a predetermined moldplate material; directly injecting optical material into cavities of a moldplate without a release layer; rapidly curing the injected optical material with high intensity pulses of UV light such that a predetermined optical device is formed; and separating the thus formed optical device from the cavities of the moldplate due to a differential thermal expansion between the optical device material and the moldplate material.
Public/Granted literature
- US20120207868A1 ENHANCED SEPARATION OF INJECTION MOLDED MICROLENSES FOR HIGH VOLUME MANUFACTURING Public/Granted day:2012-08-16
Information query