Advanced compact head up display
First Claim
1. A head up display system for a vehicle, comprising:
- a compact image source for projecting an image, said compact image source being foldable up into a cockpit ceiling of the vehicle; and
a combiner for reflecting said projected image with optical power toward an observer for observation, said combiner being positioned so that said observer, in a line of sight, sees a visual exterior view of an outside scene through said combiner and said projected image in said combiner, wherein said combiner comprises a meniscus combiner, comprising;
a meniscus lens;
a multi-layer dichroic coating formed on a first surface of said meniscus lens; and
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an anti-reflection coating formed on a second, opposite surface of said meniscus lens.
2 Assignments
0 Petitions
Accused Products
Abstract
A head up display system for a vehicle that includes a compact image source for projecting an image. The compact image source may be foldable up toward or into a cockpit ceiling of the vehicle, be positioned within a dashboard of the vehicle, or located at another suitable position. A combiner reflects the projected image with optical power toward an observer for observation. The combiner is positioned so that the observer, in a line of sight, may see a visual exterior view of an outside scene through the combiner and the projected image in the combiner. In a preferred embodiment, the image source includes an illumination system that includes a high power light emitting diode (LED) array assembly. A Fresnel lens array is operatively associated with the LED array assembly for receiving light produced by the LED and providing a nearly collimated light output. A spatial light modulator receives the nearly collimated light output. The preferred combiner is a meniscus combiner that includes a meniscus lens; a multi-layer dichroic coating formed on a first surface of the meniscus lens; and, an anti-reflection coating formed on a second, opposite surface of the meniscus lens. The meniscus combiner preferably utilizes a non-symmetric aspheric meniscus lens.
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Citations
17 Claims
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1. A head up display system for a vehicle, comprising:
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a compact image source for projecting an image, said compact image source being foldable up into a cockpit ceiling of the vehicle; and a combiner for reflecting said projected image with optical power toward an observer for observation, said combiner being positioned so that said observer, in a line of sight, sees a visual exterior view of an outside scene through said combiner and said projected image in said combiner, wherein said combiner comprises a meniscus combiner, comprising; a meniscus lens; a multi-layer dichroic coating formed on a first surface of said meniscus lens; and
;an anti-reflection coating formed on a second, opposite surface of said meniscus lens. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A head up display system for a vehicle, comprising:
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a compact image source for projecting an image, said compact image source being positioned behind a dashboard of the vehicle; and
;a combiner for reflecting said projected image with optical power toward an observer for observation, said combiner being positioned so that said observer, in a line of sight, sees a visual exterior view of an outside scene through said combiner and said projected image in said combiner, wherein said combiner comprises a meniscus combiner, comprising; a meniscus lens; a multilayer dichroic coating formed on a first surface of said meniscus lens; and
;an anti-reflection coating formed on a second, opposite surface of said meniscus lens. - View Dependent Claims (13, 14, 15)
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16. A head up display system for a vehicle, comprising:
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a compact image source for projecting an image, said compact image source, comprising and illumination system, comprising; i. a light emitting diode (LED) array assembly; ii. a Fresnel lens array operatively associated with said LED array assembly for receiving light produced by said LED and providing a nearly collimated light output; and
,iii. a spatial light modulator for receiving said nearly collimated light output, said spatial light modulator comprising an LCD; and
,a combiner for reflecting said projected image with optical power toward an observer for observation, said combiner being positioned so that said observer, in a line of sight, sees a visual exterior view of an outside scene through said combiner and said projected image in said combiner, said combiner, comprising a meniscus combiner, comprising; a meniscus lens; a multi-layer dichoric coating formed on a first surface of said meniscus lens; and
,an antireflection coating formed on a second, opposite surface of said meniscus lens. - View Dependent Claims (17)
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Specification
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- Resources
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Current AssigneeRockwell Collins, Inc. (Rtx Corporation)
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Original AssigneeRockwell Collins, Inc. (Rtx Corporation)
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InventorsPeng, Guolin, Steffensmeier, Martin J.
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Primary Examiner(s)Ben, Loha
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Assistant Examiner(s)Dinh, Jack
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Application NumberUS11/197,006Time in Patent Office383 DaysField of Search359/630, 359/631, 359/634, 359/636, 359290-292, 359/629, 345 7- 9, 362/545US Class Current359/630CPC Class CodesG02B 2027/011 comprising device for corre...G02B 2027/0114 comprising dichroic elementsG02B 2027/0118 comprising devices for impr...G02B 2027/0123 comprising devices increasi...G02B 27/0101 characterised by optical fe...
