Test Method for 3D Glasses
First Claim
Patent Images
1. A system for providing three dimensional video images comprising:
- a pair of glasses comprising a first lens having a first liquid crystal shutter and a second lens having a second liquid crystal shutter, the liquid crystal shutters having a liquid crystal and an opening time of less than one millisecond,a control circuit that alternately opens the first and second liquid crystal shutters, andwherein an orientation of at least one of the liquid crystal shutters is held at a point of maximum light transmission until the control circuit closes the liquid crystal shutter, anda test system comprising a signal transmitter, a signal receiver, and a test system control circuit adapted to open and close the first and second liquid crystal shutters at a rate that is visible to a viewer.
1 Assignment
0 Petitions
Accused Products
Abstract
A viewing system for viewing video displays having the appearance of a three dimensional image.
-
Citations
25 Claims
-
1. A system for providing three dimensional video images comprising:
-
a pair of glasses comprising a first lens having a first liquid crystal shutter and a second lens having a second liquid crystal shutter, the liquid crystal shutters having a liquid crystal and an opening time of less than one millisecond, a control circuit that alternately opens the first and second liquid crystal shutters, and wherein an orientation of at least one of the liquid crystal shutters is held at a point of maximum light transmission until the control circuit closes the liquid crystal shutter, and a test system comprising a signal transmitter, a signal receiver, and a test system control circuit adapted to open and close the first and second liquid crystal shutters at a rate that is visible to a viewer. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A method for providing a three dimensional video image, the method comprising:
-
having a pair of three dimensional viewing glasses comprising a first liquid crystal shutter and a second liquid crystal shutter, opening the first liquid crystal shutter in less than one millisecond, holding the first liquid crystal shutter at a point of maximum light transmission for a first period of time, closing the first liquid crystal shutter and then opening the second liquid crystal shutter in less than one millisecond, holding the second liquid crystal shutter at a point of maximum light transmission for a second period of time, wherein the first period of time corresponds to the presentation of an image for a first eye of a viewer and the second period of time corresponds to the presentation of an image for a second eye of a viewer, transmitting a test signal towards the three dimensional viewing glasses, receiving the test signal with a sensor on the three dimensional glasses, and using a control circuit to open and close the first and second liquid crystal shutters as a result of the received test signal, wherein the liquid crystal shutters open and close at a rate that is observable to a viewer wearing the glasses. - View Dependent Claims (8, 9, 10, 11, 12)
-
-
13. A computer program installed on a machine readable medium for providing a three dimensional video image using a pair of three dimensional viewing glasses comprising a first liquid crystal shutter and a second liquid crystal shutter, the computer program comprising:
-
opening the first liquid crystal shutter in less than one millisecond, holding the first liquid crystal shutter at a point of maximum light transmission for a first period of time, closing the first liquid crystal shutter and then opening the second liquid crystal shutter in less than one millisecond, holding the second liquid crystal shutter at a point of maximum light transmission for a second period of time, wherein the first period of time corresponds to the presentation of an image for a first eye of a viewer and the second period of time corresponds to the presentation of an image for a second eye of a viewer, transmitting a test signal towards the three dimensional viewing glasses, receiving the test signal with a sensor on the three dimensional glasses, and using a control circuit to open and close the first and second liquid crystal shutters as a result of the received test signal, wherein the liquid crystal shutters open and close at a rate that is observable to a viewer wearing the glasses. - View Dependent Claims (14, 15, 16, 17, 18)
-
-
19. A system for providing a three dimensional video image, the method comprising:
-
means for having a pair of three dimensional viewing glasses comprising a first liquid crystal shutter and a second liquid crystal shutter, means for opening the first liquid crystal shutter in less than one millisecond, means for holding the first liquid crystal shutter at a point of maximum light transmission for a first period of time, means for closing the first liquid crystal shutter and then opening the second liquid crystal shutter in less than one millisecond, means for holding the second liquid crystal shutter at a point of maximum light transmission for a second period of time, wherein the first period of time corresponds to the presentation of an image for a first eye of a viewer and the second period of time corresponds to the presentation of an image for a second eye of a viewer, means for transmitting a test signal towards the three dimensional viewing glasses, means for receiving the test signal with a sensor on the three dimensional glasses, and means for using a control circuit to open and close the first and second liquid crystal shutters as a result of the test signal, wherein the liquid crystal shutters open and close at a rate that is observable to a viewer wearing the glasses. - View Dependent Claims (20, 21, 22, 23, 24)
-
-
25. A method for providing a three dimensional video image, the method comprising:
-
having a pair of three dimensional viewing glasses comprising a first liquid crystal shutter and a second liquid crystal shutter, opening the first liquid crystal shutter in less than one millisecond, holding the first liquid crystal shutter at a point of maximum light transmission for a first period of time, closing the first liquid crystal shutter and then opening the second liquid crystal shutter in less than one millisecond, holding the second liquid crystal shutter at a point of maximum light transmission for a second period of time, wherein the first period of time corresponds to the presentation of an image for a first eye of a viewer and the second period of time corresponds to the presentation of an image for a second eye of a viewer, transmitting an infrared test signal towards the three dimensional viewing glasses, receiving the infrared test signal with a sensor on the three dimensional glasses, and using a control circuit to open and close the first and second liquid crystal shutters as a result of the received infrared test signal, wherein the liquid crystal shutters open and close at a rate that is observable to a viewer wearing the glasses, wherein the signal transmitter does not receive a timing signal from a projector, wherein the infrared signal comprises a series of pulses, wherein the infrared signal comprises one or more data bits that are each preceded by at least one clock pulse, and wherein the infrared signal comprises a synchronous serial data signal.
-
Specification