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See-through computer display systems

a computer and display system technology, applied in the field of see-through computer display systems, can solve the problem that the display of content in the see-through display can be a complicated operation

Inactive Publication Date: 2015-11-05
OSTERHOUT GROUP INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent is about methods and systems for see-through computer display systems. It describes how these systems work and the advantages they offer. The technical effects of the patent include improved visibility and reduced eye strain for computer users. This can lead to more efficient and productive work.

Problems solved by technology

The presentation of content in the see-through display can be a complicated operation when attempting to ensure that the user experience is optimized.

Method used

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Examples

Experimental program
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Effect test

example 1

[0475]For a 26 deg display field of view and a 1280 pixel horizontally wide image, a pixel occupies 0.020 deg within the display field of view. If the frame rate of the full color images is 60 Hz, with three color sequential subframes images, the subframe time is 0.006 sec. The rotational speed of the head mounted display needed to produce one pixel of color breakup is then 3.6 deg / sec. If the number of horizontal pixels in the display field of view is reduced to 640 pixels and simultaneously the frame rate of the full color images is increased to 120 Hz, with three color sequential subframes images, the subframe time is reduced to 0.003, the size of a pixel is increased to 0.041 deg and the rotational speed to produce one pixel of color breakup is 14.6 deg / sec.

example 2

[0476]For a 26 deg display field of view and a 1280 pixel horizontally wide image, a pixel is 0.020 deg within the display field of view. If the smallest size that the user can detect for color breakup is one pixel wide, then a rotational speed of over 3.6 deg / sec is required if the subframe rate is 180 Hz, before color breakup is detected by the user. Even though the color breakup is an analog effect, the user's eye does not have the resolution to detect the color fringes that are present during movement below this speed. So below this rotational speed, color breakup management is not required.

example 3

[0477]For a 26 deg display field of view and a 1280 pixel horizontally wide image, a pixel is 0.020 deg within the display field of view. If the user can detect color breakup as small as one pixel wide, then a rotational speed of 3.6 deg / sec will require a shift of the subframes relative to each other of one pixel if the subframe rate is 180 Hz, to align the subframes so that color breakup is not visible to the user. If the user rotates their head at 15 deg / sec, then the subframes will require a shift of 4 pixels relative to one another to align the subframes so that color breakup is not visible. If the image frame begins with the display of the red subframe image, then no digital shifting is required for the red subframe image. A 4 pixel shift is required for the green subframe image. And, an 8 pixel shift is required for the blue subframe image. The next red subframe associated with the next image frame would then be effectively shifted 12 pixels relative to the previous red subfr...

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Abstract

Aspects of the present invention relate to providing see-through computer display with improved optics.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of the following U.S. patent application, which is incorporated by reference herein in its entirety: U.S. patent application Ser. No. 14 / 635,390, filed Mar. 2, 2015 (ODGP-2014-U01).[0002]This application is a continuation-in-part of the following U.S. patent application, which is incorporated by reference herein in its entirety: U.S. patent application Ser. No. 14 / 172,901 entitled “OPTICAL CONFIGURATIONS FOR HEAD WORN COMPUTING” and filed on Feb. 4, 2014. (ODGP-2003-U01). U.S. patent application Ser. No. 14 / 172,901 is a continuation-in-part of the following U.S. patent applications, each of which is hereby incorporated by reference in its entirety: U.S. non-provisional application Ser. No. 14 / 160,377 (ODGP-2001-U01), entitled Optical Configurations for Head Worn Computing, filed Jan. 21, 2014; and U.S. non-provisional application Ser. No. 14 / 163,646 (ODGP-2002-U01), entitled Peripheral Lighting for Head ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G02B27/01B32B37/12B32B38/00B32B37/24
CPCG02B27/0172B32B37/24B32B37/1284B32B38/0008G02B2027/0178B32B2307/416B32B2307/42B32B2551/00B32B2551/08B32B2037/1253G02B5/30G02B2027/0118G02B27/0093G02B2027/0138G06V20/20G06V40/19H04N23/11G02B5/04G02B6/0001G02B27/142G02B2027/0174G02B27/286G02B2027/0116G02F1/133602G06F3/013G06F3/017G06T19/006
Inventor BORDER, JOHN N.BIETRY, JOSEPHHADDICK, JOHN D.
Owner OSTERHOUT GROUP INC
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