Apparatus for manufacturing optical element, method of manufacturing optical element, optical element, and imaging device
US8064139B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 2010 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Jan 29, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/00365
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for manufacturing an optical element includes: a flexible stamper having a transfer portion transferring a predetermined shape and having changeable curvature; a stamper holding mechanism holding the stamper; an element holding mechanism holding an optical element having a convex or concave curved surface, the curved surface serving as a transferred surface to which the shape of the transfer portion of the stamper is transferred; a curvature changing mechanism changing the curvature of the stamper in accordance with curvature of the transferred surface of the optical element; and a moving mechanism moving at least one of the stamper held by the stamper holding mechanism and the optical element held by the element holding mechanism in a direction in which the transfer portion of the stamper moves away from or closer to the transferred surface of the optical element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.