Fabrication of optical devices
US4867371A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1987 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Jul 2, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/3025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A relatively large scale low cost method of fabricating optical devices with associated coupling lenses comprises the following steps: PA0 (a) producing in one surface of a substrate (1) of suitable material(s) a predetermined array of planar diffused lenses (4); PA0 (b) forming or otherwise producing on the opposite surface of the substrate (1) remote from the planar lenses (4) but in predetermined positional relationship to the lenses in the general planar direction of the substrate an array or pattern of metallic bonding pads or other registration means co-operable with corresponding pads or other means provided on a multiplicity of optical devices (10) for the accurate registration of such devices relative to the optical lenses; and, PA0 (c) dividing the substrate (1) into a multiplicity of parts each of which comprises an optical device (10) having an associated planar lens (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.