Automatic shutdown of 3D based on glasses orientation
First Claim
Patent Images
1. An apparatus for viewing a stereoscopic display, comprising:
- a pair of active shutter lenses, each lens enabled to alternate opacity and transparency to allow a transmission of a first set of images directed to a first eye through a first lens and transmission of a second set of images directed to a second eye through a second lens;
a roll orientation sensor for detecting a roll orientation of the lenses; and
a circuit connected with the active shutter lenses, the circuit configured to switch the lenses from alternating opacity with respect to each other to synchronizing opacity with respect to each other based at least in part on a signal from the sensor to allow transmission of the first set of images through the first lens and second lens while blocking transmission of the second set of images by the first lens and second lens, the signal indicating exceeding a threshold based at least in part on roll orientation, wherein the circuit is configured to delay switching the lenses between opacity and synchronization for a period of time to confirm that the threshold is exceeded.
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Abstract
Devices, systems, and methods are presented for shutting down the 3D effect of active shutter 3D glasses by synchronizing the transparency of the lenses with respect to each other when the 3D glasses have been rotated beyond a threshold angle. The threshold angle can be pre-set through a user-selectable switch. Transitioning from an alternating shutter mode to a synchronized shutter mode can include a fade in which the duty cycles of the lens are adjusted. Direct measurement techniques for measuring the differential roll angle between the lenses and left and right eye images on a display are disclosed.
33 Citations
20 Claims
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1. An apparatus for viewing a stereoscopic display, comprising:
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a pair of active shutter lenses, each lens enabled to alternate opacity and transparency to allow a transmission of a first set of images directed to a first eye through a first lens and transmission of a second set of images directed to a second eye through a second lens; a roll orientation sensor for detecting a roll orientation of the lenses; and a circuit connected with the active shutter lenses, the circuit configured to switch the lenses from alternating opacity with respect to each other to synchronizing opacity with respect to each other based at least in part on a signal from the sensor to allow transmission of the first set of images through the first lens and second lens while blocking transmission of the second set of images by the first lens and second lens, the signal indicating exceeding a threshold based at least in part on roll orientation, wherein the circuit is configured to delay switching the lenses between opacity and synchronization for a period of time to confirm that the threshold is exceeded. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for viewing a stereoscopic display, comprising:
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a pair of active shutter lenses comprising a first lens and second lens, each lens enabled to alternate opacity and transparency; a detection system for detecting a differential roll angle of the lenses with respect to an orientation of left eye and right eye images on a display; and a circuit connected to the active shutter lenses, the circuit configured to switch the lenses from alternating opacity with respect to each other to synchronizing opacity with respect to each other based on a signal from the detection system to allow transmission of either a set of left eye images or a set of right eye images through the active shutter lenses, the synchronizing opacity blocking the right eye images by the first lens and second lens when transmitting the set of left eye images or blocking the left eye images by the first lens and second lens when transmitting the set of right eye images, the signal indicating exceeding a threshold based at least in part on roll orientation, wherein the circuit is configured to delay switching the lenses between opacity and synchronization for a period of time to confirm that the roll angle is exceeded. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method for viewing a stereoscopic display, the method comprising:
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alternating opacity and transparency in each lens of a pair of active shutter lenses, the lenses alternating opacity with respect to each other to allow a transmission of a first set of images directed to a first eye through a first lens and transmission of a second set of images directed to a second eye through a second lens; detecting a roll orientation of the lenses; synchronizing opacity of the lenses with respect to each other based at least in part on the roll orientation detection to allow transmission of the first set of images through the first lens and second lens while blocking transmission of the second set of images by the first lens and second lens, the signal indicating exceeding a threshold based at least in part on roll orientation; and delaying the synchronization for a predetermined time. - View Dependent Claims (19, 20)
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Specification