Image display apparatus with microlens plate having mutually fused together lenses resulting in hexagonal shaped microlenses
US5359440A · kind A · utility
32Cited by
7References
27Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 25, 1993 |
| Grant date | Oct 25, 1994 |
| Priority date | — |
| Expiry date | Oct 25, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/0087
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image display apparatus includes a display panel unit having a plurality of pixels, and a flat-plate microlens array of a refraction index distribution type. The microlens array is constituted by forming a plurality of microlenses for converging illuminating light onto the respective ones of the pixels, in a substrate by a diffusion process. In the diffusion process, diffusion fronts of the neighboring microlenses of the flat-plate microlens array are fused into each other so as to form one continuous curved surface within the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.