Erecting equal-magnification lens array plate, optical scanning unit, image reading device, and image writing device
US8810912B2 · kind B2 · utility
1Cited by
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16Claims
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Assignee
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Key dates
| Filing date | Mar 5, 2012 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Oct 23, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/101
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An erecting equal-magnification lens array plate includes a first lens array plate and a second lens array plate provided opposite to each other, each of the first and second lens array plates being formed with a plurality of lenses on both sides thereof. The first lens array plate is provided with a first lens-to-lens distance determining part. The second lens array plate is provided with a second lens-to-lens distance determining part. The distance between opposite lenses is determined by the contact between the first lens-to-lens distance determining part and the second lens-to-lens distance determining part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.