Cinewide with autoscope
View Patent ↗A video display system which combines image processing and an anamorphic lens which displays television, HDTV wide-screen format images, and Cinemascope theatre video in a constant vertical height automatically with no resolution lost to black stripes on the top and bottom of the screen that contain no picture information.
1. A video display system, comprising:
a video projector including a spatial light modulator for generating images to be projected;
a remote control;
a video controller;
a memory;
a motorized anamorphic lens;
said video controller responding to a signal from said remote control to access data stored in the memory to determine whether to position said anamorphic lens in or out of a light path of the video projector and determine whether to stretch said images vertically to fill the spatial light modulator, said signal indicative of a specific aspect ratio of said images;
in response to the signal from said remote control and based on data accessed in the memory, said video controller automatically adjusting settings on said video projector appropriate for displaying images associated with said specific aspect ratio; and
in response to the signal from said remote control and based on data accessed in the memory, said video controller selecting a position for said anamorphic lens appropriate for displaying images of constant vertical height regardless of the specific aspect ratio chosen.
2. The video display system in accordance with claim 1 , wherein said anamorphic lens is automatically placed in the light path of said video projector and located in front of and concentric to said video projector lens for one aspect ratio and moved out of the light path for at least one other aspect ratio.
3. The video system in accordance with claim 1 , wherein said remote control can be connected to said video controller by wireless or wired signaling.
4. The video display system in accordance with claim 1 , further comprising:
a reflective screen, wherein the anamorphic lens is interposed between the video projector and the reflective screen when placed in the light path of the video projector so that light is reflected off of the reflective screen.
5. The video display system in accordance with claim 1 , further comprising:
two elongate rails supported on a housing of the video projector, the two rails separated by a distance and positioned parallel to each other and perpendicular to the light path of the video projector;
a carriage slidably supported by the two rails for movement along the longitudinal extent of the rails, the carriage configured to support the anamorphic lens;
a belt coupled to the carriage and extending between two pulleys, the pulleys supported by the housing of the video projector proximate opposing ends of one of the rails and positioned such that the belt extends along the longitudinal extent of the rails; and
a motor coupled to one of the pulleys and configured to rotate the pulley to thereby slide the carriage and the anamorphic lens along the longitudinal extent of the rails.
6. The video display system in accordance with claim 1 , wherein the video controller is housed within the video projector.
7. The video display system in accordance with claim 1 , wherein the setting automatically adjusted by said video controller comprises a resolution of the projector.
8. The video display system in accordance with claim 1 , wherein the specific aspect ratio comprises a 2.35:1 aspect ratio.
9. A video display system, comprising:
a video projector having an image generating device, a memory, and a video controller housed within the video projector, the image generating device defining a native aspect ratio of the video projector;
an anamorphic lens externally mounted to the video projector for movement between a first position wherein the anamorphic lens is in a light path of the video projector and a second position wherein the anamorphic lens is out of the light path of the video projector;
a motor configured to move the anamorphic lens between the first and second positions in response to an indication from the video controller; and
a remote control for transmitting a signal to the video projector indicative of an aspect ratio of an image to be displayed,
wherein, in response to the signal from the remote control, the video controller is configured to:
access data stored in the memory of the video projector to determine whether to position the anamorphic lens in or out of the light path of the video projector and determine whether to stretch the image vertically;
if the indicated aspect ratio of the image extends further in a horizontal direction than the native aspect ratio of the video projector, stretch the image vertically such that the image fills the image generating device in both the vertical and horizontal directions and move the anamorphic lens to the first position so that the anamorphic lens optically stretches the image in the horizontal direction thereby restoring the aspect ratio of the image to the indicated aspect ratio; and
if the indicated aspect ratio of the image is less than or equal to the native aspect ratio of the video projector in the horizontal direction, move the anamorphic lens to the second position.
10. The video display system in accordance with claim 9 , further comprising:
a reflective screen, wherein the video projector and the reflective screen are configured such that the video projector projects light toward the reflective screen.
11. The video display system in accordance with claim 9 , wherein the native aspect ratio of the video projector comprises a 16:9 aspect ratio.
12. The video display system in accordance with claim 11 , wherein the image is stretched vertically and the anamorphic lens is moved to the first position if the indicated aspect ratio of the image comprises a 2.35:1 aspect ratio.
13. The video display system in accordance with claim 11 , wherein the anamorphic lens is moved to the second position if the indicated aspect ratio of the image comprises a 4:3 or 16:9 aspect ratio.
14. A method of displaying an image with a video projector having an image generating device defining a native aspect ratio of the video projector, the method comprising:
receiving a signal from a remote control indicative of an aspect ratio of an image to be displayed;
in response to the signal received from the remote control, accessing data stored in a memory of the video projector to determine whether to position an anamorphic lens in or out of a light path of the video projector and determine whether to stretch the image vertically;
if the indicated aspect ratio of the image extends further in a horizontal direction than the native aspect ratio of the video projector, stretching the image vertically such that the image fills the image generating device in both the vertical and horizontal directions and positioning the anamorphic lens in the light path of the video projector such that the anamorphic lens optically stretches the image in the horizontal direction thereby restoring the aspect ratio of the image to the indicated aspect ratio; and
if the indicated aspect ratio of the image is less than or equal to the native aspect ratio of the video projector in the horizontal direction, positioning the anamorphic lens out of the light path of the video projector.
15. The method in accordance with claim 14 , further comprising:
providing a reflective screen to reflect light from the video projector.
16. The method in accordance with claim 14 , wherein the native aspect ratio of the video projector comprises a 16:9 aspect ratio.
17. The method in accordance with claim 16 , wherein the image is stretched vertically and the anamorphic lens is positioned in the light path of the video projector if the indicated aspect ratio of the image comprises a 2.35:1 aspect ratio.
18. The method in accordance with claim 16 , wherein the anamorphic lens is positioned out of the light path of the video projector if the indicated aspect ratio of the image comprises a 4:3 or 16:9 aspect ratio.
19. The method in accordance with claim 14 , further comprising:
mounting the anamorphic lens to an exterior portion of the video projector for movement in and out of the light path of the video projector.
20. The video system in accordance with claim 1 , wherein the spatial light modulator comprises a digital micromirror device.
21. The video display system in accordance with claim 9 , wherein the image generating device comprises a spatial light modulator.
22. The video display system in accordance with claim 9 , wherein the image generating device comprises a digital micromirror device.
23. The method in accordance with claim 14 , wherein the image generating device comprises a spatial light modulator.
24. The method in accordance with claim 14 , wherein the image generating device comprises a digital micromirror device.
25. The video display system in accordance with claim 9 , further comprising:
two elongate rails supported on a housing of the video projector, the two rails separated by a distance and positioned parallel to each other and perpendicular to the light path of the video projector;
a carriage slidably supported by the two rails for movement along the longitudinal extent of the rails, the carriage configured to support the anamorphic lens; and
a belt coupled to the carriage and extending between two pulleys, the pulleys supported by the housing of the video projector proximate opposing ends of one of the rails and positioned such that the belt extends along the longitudinal extent of the rails,
wherein the motor is coupled to one of the pulleys and configured to rotate the pulley to thereby slide the carriage and the anamorphic lens along the longitudinal extent of the rails.