Scanning display

• US 20060285216A1
• Filed: 06/20/2006
• Published: 12/21/2006
• Est. Priority Date: 06/20/2005
• Status: Abandoned Application

• Current Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Original Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Inventors: Urakawa, Takashi, Yamamoto, Akira, Kobayashi, Shuichi
• Application Number:
  US11/471,925
• Publication Number:
  US 20060285216A1
• Time in Patent Office: Days
• US Class Current: 359/630
• CPC Class Codes: G02B 26/10 Scanning systems
• CPC Class Codes: G02B 27/017 Head mounted

Abstract

A scanning display includes a plurality of light sources, and a scanner for scanning lights from the plurality of light sources in two-dimensional directions, wherein the scanner scans the lights from different light sources in two or more partial scanning areas arranged in a first direction in a range corresponding to a whole scanning area, and scans, for each partial scanning area, the light at a first speed in the first direction and at a second speed higher than the first speed in a second direction different from the first direction, and wherein the scanner has the scan frequency of 10 kHz or greater in the second direction.

Claims

1. A scanning display comprising:

a plurality of light sources; and

a scanner for scanning lights from the plurality of light sources in two-dimensional directions,

wherein said scanner scans the lights from different light sources in two or more partial scanning areas arranged in a first direction in a range corresponding to a whole scanning area, and scans, for each partial scanning area, the light at a first speed in the first direction and at a second speed higher than the first speed in a second direction different from the first direction, and

wherein said scanner has the scan frequency of 10 kHz or greater in the second direction.

2. A scanning display according to claim 1, wherein said scanner has a scanning frequency of 15 kHz or higher.

3. A scanning display according to claim 1, wherein 10≦

(α

×

Res×

FR)×

10<sup>−

3</sup>/(2×

Z) is met, where Res is a resolution of an image in the first direction, FR is a scan frequency (Hz) in the first direction, Z is the number of partial scanning areas arranged in the first direction, and a is a constant relating to an effective period in one scan period in the first direction.

4. A scanning display according to claim 1, wherein said scanning display scans the lights relative to eyes of a viewer.

5. An image pickup apparatus comprising a scanning display according to claim 1 for displaying a captured image.

6. An image display system comprising:

a scanning display according to claim 1;

and

an image supply unit for supplying an image signal to said scanning display.