US4620230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display system
Assignee: Boeing Co
•
Filing: 1984-09-24
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Granted: 1986-10-28
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Expires: 2004-09-24
Abstract
Abstract A laser scanned, flat panel display system is disclosed. In one embodiment, the display system comprises a display panel (54), a plurality of first mirrors (30), a plurality of second mirrors (50), a source of light (10), means for modulating the intensity of the light (12), and deflection means (14). The display panel includes a display surface that extends along X and Y axes. Each first mirror is located at a different position along the X axis, and has an elongated dimension normal to the X axis. Each second mirror is located at a different position along the Y axis, and includes an elongated dimension normal to the Y axis. The deflection means directs the light as a first beam (17) to a selected first reflection point (32) on one of the first mirrors, such that the first beam is reflected from the first reflection point as a second beam (18). The second beam strikes one of the second mirrors at a second reflection point (52) and is reflected as a third beam (19) to a display point (53) on the display surface. The first and second mirrors are positioned such that varying the location of the first reflection point along the elongated dimension of a particular first mirror causes the Y coordinate of the display point to change, and varying the location of the first reflection point from one first mirror to another first mirror causes the X coordinate of the display point to change.
Inventors
- 👤 Robert J. Spiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:44
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/04; G09G3/06; H; H04; H04N; H04N3/00; H04N3/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
215 words
A display system comprising: a display panel including a display surface extending along X and Y axes; a plurality of first mirrors located at different positions along the X axis, each first mirror having an elongated dimension oriented normal to the X axis; a plurality of second mirrors located at different positions along the Y axis, each second mirror having an elongated dimension oriented normal to the Y axis; a source of light; means for modulating the intensity of the light; deflection means for directing the light as a first beam to a selected first reflection point on one of the first mirrors such that the first beam is reflected from the first reflection point as a second beam, the second beam strikes one of the second mirrors at a second reflection point and is reflected as a third beam, and the third beam strikes the display surface at a display point; the first and second mirrors being positioned such that varying the location of the first reflection point along the elongated dimension of a particular first mirror causes the Y coordinate of the display point to change, and varying the location of the first reflection point from one first mirror to another first mirror causes the X coordinate of the display point to change.
Claim 2
Dependent Claim
215 words
A display system comprising: a display panel including a display surface extending along X and Y axes; a plurality of first mirrors located at different positions along the X axis, each first mirror having an elongated dimension oriented normal to the X axis; a plurality of second mirrors located at different positions along the Y axis, each second mirror having an elongated dimension oriented normal to the Y axis; a source of light; means for modulating the intensity of the light; deflection means for directing the light as a first beam to a selected first reflection point on one of the first mirrors such that the first beam is reflected from the first reflection point as a second beam, the second beam strikes one of the second mirrors at a second reflection point and is reflected as a third beam, and the third beam strikes the display surface at a display point; the first and second mirrors being positioned such that varying the location of the first reflection point along the elongated dimension of a particular first mirror causes the Y coordinate of the display point to change, and varying the location of the first reflection point from one first mirror to another first mirror causes the X coordinate of the display point to change.
Claim 3
Dependent Claim
42 words
The display system of claim 1, wherein the first and second mirrors are positioned such that varying the location of the first reflection point along the elongated dimension of a particular first mirror causes the second beam to strike different second mirrors.
Claim 4
Dependent Claim
48 words
The display system of claim 2, wherein the first and second mirrors are positioned such that varying the location of the first reflection point from one first mirror to another first mirror causes the second reflection point to move along the elongated dimension of a particular second mirror.
Claim 5
Dependent Claim
40 words
The display system of claim 3, wherein the display panel is substantially rectangular in shape, a first edge of the display panel extending along the X axis, and a second edge of the display panel extending along the Y axis.
Claim 6
Dependent Claim
20 words
The display system of claim 4, wherein the first mirrors are located adjacent the first edge of the display panel.
Claim 7
Dependent Claim
20 words
The display panel of claim 5, wherein the elongated dimensions of the first mirrors are substantially parallel to one another.
Claim 8
Dependent Claim
27 words
The display system of claim 5, wherein each first mirror is positioned so as to cause the second beam to be oriented normal to the X axis.
Claim 9
Dependent Claim
31 words
The display system of claim 4, wherein each second mirror is located adjacent one side of the display panel and is approximately coextensive with the display panel along the X axis.
Claim 10
Dependent Claim
19 words
The display system of claim 8, wherein the elongated dimensions of the second mirrors are parallel to one another.
Claim 11
Dependent Claim
62 words
The display system of claim 8, wherein the first mirrors are located adjacent the first edge of the display panel and are positioned so as to cause the second beam to be oriented normal to the X axis, and wherein each second mirror is positioned so as to cause the third beam to be oriented normal to the X and Y axes.
Claim 12
Dependent Claim
24 words
The display system of claim 4, wherein the display panel is planar, and wherein the X and Y axis are orthogonal to one another.
Claim 13
Dependent Claim
33 words
The display system of claim 11, wherein each first mirror and each second mirror is generally rectangular and has a dimension normal to its elongated dimension on the order of the beam diameter.
Claim 14
Dependent Claim
19 words
The display system of claim 12, wherein the elongated dimension of each first mirror extends along the Z axis.
Claim 15
Dependent Claim
19 words
The display system of claim 13, wherein the elongated dimension of each second mirror extends along the X axis.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-10-27 | 1990-04-28 | 1990-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-27 | 1994-04-28 | 1994-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-27 | 1998-04-28 | 1998-10-28 | $7700.00 | Window Closed / Lapsed |