Electrically dimmable combiner optics for head-up display
First Claim
Patent Images
1. A dimmable head-up display, comprising:
- a display portion configured to provide head-up display information to an operator, the display portion to enable the operator to view a field-of-view through the display portion where the field-of-view is situated such that the display portion is located between the operator and the field-of-view; and
a dimmable portion coupled to the display portion and configured to adjust a transmissivity of light thorough the display portion, the dimmable portion including a plurality of dimmable segments configured to independently vary levels of transmissivity of light through each of the plurality of dimmable segments based at least in part on a measured level of ambient light, wherein at least a portion of the plurality of dimmable segments form an elliptical viewing area within the dimmable display to define an outer segmenting parameter and an inner segmenting parameter that is surrounded by the outer segmenting parameter, the inner segmenting parameter accommodating the operator'"'"'s direct line of sight and the outer segmenting parameter accommodating the operator'"'"'s peripheral vision, and wherein at least one of the inner segmenting parameter or the outer segmenting parameter is subdivided into sub-segments that independently vary levels of transmissivity of light through each of the sub-segments.
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Abstract
Methods and systems for providing an electrically dimmable combiner optics for head-up displays are disclosed. In one embodiment, a dimmable head-up display includes a display portion configured to provide head-up display information to an operator. Additionally, a dimmable portion is coupled to the display portion configured to change a transmissivity of the display portion from a first transmissivity level to a second transmissivity level.
92 Citations
16 Claims
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1. A dimmable head-up display, comprising:
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a display portion configured to provide head-up display information to an operator, the display portion to enable the operator to view a field-of-view through the display portion where the field-of-view is situated such that the display portion is located between the operator and the field-of-view; and a dimmable portion coupled to the display portion and configured to adjust a transmissivity of light thorough the display portion, the dimmable portion including a plurality of dimmable segments configured to independently vary levels of transmissivity of light through each of the plurality of dimmable segments based at least in part on a measured level of ambient light, wherein at least a portion of the plurality of dimmable segments form an elliptical viewing area within the dimmable display to define an outer segmenting parameter and an inner segmenting parameter that is surrounded by the outer segmenting parameter, the inner segmenting parameter accommodating the operator'"'"'s direct line of sight and the outer segmenting parameter accommodating the operator'"'"'s peripheral vision, and wherein at least one of the inner segmenting parameter or the outer segmenting parameter is subdivided into sub-segments that independently vary levels of transmissivity of light through each of the sub-segments. - View Dependent Claims (2, 3, 4, 5)
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6. A system for providing a dimmable head-up display, comprising:
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a dimmable combiner configured to provide head-up display information to an operator, the dimmable combiner adjustable from a substantially transparent level to a less transparent level, the combiner being at least partially transparent such that the operator can view objects beyond the combiner, the dimmable combiner including a plurality of dimmable segments that define at least an outer segment and an inner segment that is circumscribed by the outer segment, wherein the inner segment accommodates the operator'"'"'s direct line of sight and the outer segment accommodates the operator'"'"'s peripheral vision, and wherein at least one of the inner segment or the outer segment is subdivided into sub-segments that independently vary levels of transmissivity of light through each of the sub-segments; a light sensor configured to detect the light intensity of an environment proximate the dimmable combiner; and a combiner control module configured to receive a light sensor signal from the light sensor and transmit control signals to the at least the outer segment and the inner segment of the dimmable combiner for adjusting the transmissivity of the dimmable combiner. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. A method for providing a dimmable head-up display to enable an operator to view information on a substantially transparent display, comprising:
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receiving an input from an operator to control a transmissivity of light through at least a portion of a dimmable head-up display; receiving a light intensity value from a light sensor; and adjusting a transmissivity of a plurality of segments of the dimmable head-up display based at least in part on the input from the operator and the light intensity value, the adjustment of the transmissivity to individually increase or reduce the transparency of each of the plurality of segments of the dimmable head-up display, the dimmable head-up display enabling the operator to view objects beyond the dimmable head-up display, wherein the input from the operator causes an proportional adjustment of the transmissivity of light across the plurality of segments of the dimmable head-up display while the light sensor value causes each of the plurality of segments of the dimmable head-up display to individually adjust based on the light sensor value such that a first segment includes a different adjustment than a second segment of the plurality of segments, wherein the first segment is an outer segmenting parameter and the second segment is an inner segmenting parameter that is surrounded by the outer segmenting parameter, and wherein the inner segmenting parameter accommodates the operator'"'"'s direct line of sight and the outer segmenting parameter accommodates the operator'"'"'s peripheral vision, and wherein at least one of the inner segmenting parameter or the outer segmenting parameter is subdivided into sub-segments that independently vary levels of transmissivity of light through each of the sub-segments. - View Dependent Claims (15, 16)
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Specification