Controllable, variable transmissivity eyewear
First Claim
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1. An eye shade apparatus for wearing by a person comprising:
- a lens structure in which the optical transmissivity thereof is electrically adjustable;
a framework coupled with a lens structure for wearing by a person in order to place said lens structure in optical relationship with the person'"'"'s eyes; and
control circuit means, coupled with said lens structure and including means for coupling with a source of operating power, for sensing and responding to the level of ambient light and for electronically adjusting the transmissivity of said lens structure to a transmissive level correlated with said ambient light level for varying the amount of ambient light passing through said lens to the person'"'"'s eyes.said lens structure including a pair of superposed lens having a liquid crystal material therebetween, said liquid crystal material being responsive to the application of a variable voltage thereto for correspondingly varying the amount of ambient light transmitted through said lens structure,said control circuit means including means for varying voltage applied to said liquid crystal material in response to varying levels of ambient light.
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Abstract
Unique eyewear is disclosed having electronically controlled lens structures in which the optical transmissivity thereof is automatically adjusted to a level correlated with the level of ambient light. The preferred eyewear includes a pair of lens having liquid crystal material therebetween, a control circuit having a sensitivity-adjustable, ambient light sensor, and a power supply. The preferred power supply includes a battery and a photocell array distributed about the periphery of the lens structures. In use, the control circuit senses ambient light level and adjusts the transmissivity of the lens structure to a level correlated with the ambient light level.
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Citations
12 Claims
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1. An eye shade apparatus for wearing by a person comprising:
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a lens structure in which the optical transmissivity thereof is electrically adjustable; a framework coupled with a lens structure for wearing by a person in order to place said lens structure in optical relationship with the person'"'"'s eyes; and control circuit means, coupled with said lens structure and including means for coupling with a source of operating power, for sensing and responding to the level of ambient light and for electronically adjusting the transmissivity of said lens structure to a transmissive level correlated with said ambient light level for varying the amount of ambient light passing through said lens to the person'"'"'s eyes. said lens structure including a pair of superposed lens having a liquid crystal material therebetween, said liquid crystal material being responsive to the application of a variable voltage thereto for correspondingly varying the amount of ambient light transmitted through said lens structure, said control circuit means including means for varying voltage applied to said liquid crystal material in response to varying levels of ambient light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification