 |
|
|
|
|
|
 Title: |
US4345817:
Wide angle display device
[ Derwent Title ]
|
| Country: |
US United States of America
|
| |
| Inventor: |
Gwynn, Eric C. E.; Hove, United Kingdom
|
| Assignee: |
The Singer Company, Binghamton, NY
other patents from SINGER COMPANY (515685) (approx. 2,164)
News, Profiles, Stocks and More about this company
|
| Published / Filed: |
1982-08-24
/ 1980-06-02
|
| Application Number: |
US1980000155903
|
| IPC Code: |
Advanced:
G02B 27/01;
G02B 27/14;
G09B 9/32;
Core:
G09B 9/02;
more...
IPC-7:
G02B 27/14;
|
| ECLA Code: |
G02B27/01A; G02B27/14; G09B9/32C;
|
| U.S. Class: |
Current:
359/631;
348/036;
348/383;
Original:
350/174;
358/087;
|
| Field of Search: |
350/171,174,293
035/12 R,12 BL,12 N
089/41 R
D19/060
D96/012
358/087,238,239
|
| Priority Number: |
| 1980-01-29 |
GB1980000003002 |
|
| Abstract: |
In order to widen the field-of-view, two display devices are abutted. A first display device has a concave mirror (10), a 45 DEG beam splitter (12) and a CRT positioned on an axis (16). To minimize any gap tending to develop between adjacent images, a second display device is rotated 90 DEG about its viewing axis (24), the second display device having a concave mirror (20), a beam splitter (22) and a CRT (21). The CRT axis (26) is tilted towards the mirror (20) to provide image continuity where the devices abut, so that eye movement within a range to an observer's right of the center of curvature (18) is possible without any gap developing between two displayed images. In a modification, the mirror (20) has a larger radius of curvature and overlaps the mirror (10). In an alternative arrangement, there is no 90 DEG rotation of the second display device, but the CRT axes are tilted towards each other.
|
| Attorney, Agent or Firm: |
Rothenberg, Jeff ;
Clarkson, Douglas M. ;
|
| Primary / Asst. Examiners: |
Henry, Jon W.;
|
| INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report
|
| Family: |
Show 2 known family members
|
First Claim:
Show all 10 claims |
I claim:
1. A visual display arrangement for a simulator to develop improved realism in a projected scene as viewed by an observer, comprising:
- first and second wide angle display devices in each of which the screen of a CRT is reflected into a concave mirror by a beam splitter through which the observer sees the image of the CRT screen in the mirror,
- the concave mirrors of the first and second display devices being positioned contiguously to form a composite visual display scene, and
- the CRT axis of at least one display device being so tilted that the CRT screen images as observed in the adjacent concave mirrors are substantially continuous.
|
| Background / Summary: |
Show background / summary
|
| Drawing Descriptions: |
Show drawing descriptions
|
| Description: |
Show description
|
| Forward References: |
Show 8 U.S. patent(s) that reference this one
|
