US4737625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement structure of plural rows of overlapping optical elements
Assignee: Alps Alpine Co Ltd
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Filing: 1986-05-19
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Granted: 1988-04-12
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Expires: 2006-05-19
Abstract
Abstract An arrangement structure of optical elements is characterized in that light emitting and/or light receiving optical elements are mounted on a substrate in a zigzag fashion, whereby the resolving power of the arrangement can be enhanced.
Inventors
- 👤 Hiroaki Sasaki
- 👤 Kazuo Hasegawa
- 👤 Junichi Ouchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:18
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/041; G06F3/042; G06F3/0421
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
145 words
An array structure of optical elements for forming a light beam matrix in an optical input device, comprising: an elongated mounting substrate for mounting a plurality of optical elements on at least one side of said input device, wherein each optical element has a predetermined width in the direction of the length of said substrate; and said plurality of optical elements being arranged in plural parallel rows along the length of said substrate, wherein the optical elements in each row are spaced apart at equal intervals, and the spacing intervals of the plural rows of optical elements are selected such that the width of each optical element in any row overlaps the width of at least one other optical element in at least one other row, whereby a fine degree of resolving power of said matrix is obtained for inputting a smooth curve of points.
Claim 2
Dependent Claim
145 words
An array structure of optical elements for forming a light beam matrix in an optical input device, comprising: an elongated mounting substrate for mounting a plurality of optical elements on at least one side of said input device, wherein each optical element has a predetermined width in the direction of the length of said substrate; and said plurality of optical elements being arranged in plural parallel rows along the length of said substrate, wherein the optical elements in each row are spaced apart at equal intervals, and the spacing intervals of the plural rows of optical elements are selected such that the width of each optical element in any row overlaps the width of at least one other optical element in at least one other row, whereby a fine degree of resolving power of said matrix is obtained for inputting a smooth curve of points.
Claim 3
Dependent Claim
42 words
An array structure according to claim 1, wherein said optical elements are arranged in three adjacent rows with spacings forming a triangular configuration in which each optical element is arranged to abut two other optical elements in the adjacent row or rows.
Claim 4
Dependent Claim
18 words
An arrangement structure of optical elements according to claim 1, wherein said optical elements are LEDs and/or phototransistors.
Claim 5
Dependent Claim
26 words
An arrangement structure of optical elements according to claim 1, wherein said optical elements are arranged so as to abut one another in an adjacent row.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-12 | 1991-10-12 | 1992-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-12 | 1995-10-12 | 1996-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-12 | 1999-10-12 | 2000-04-12 | $7700.00 | Window Closed / Lapsed |