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US 9,071,770 B2Granted
Arrangement for and method of projecting an image with linear scan lines
AssigneeMicrovision, Inc.
InventorsChinh Tan, Frederick F. Wood, Miklos Stern
Life of this patent
Estimating the term…
Abstract
A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for sweeping a composite laser beam as a pattern of linear scan lines on a planar projection surface and for causing selected pixels arranged along each linear scan line to be illuminated to produce an image of high quality and in color.
Claims18
An apparatus comprising:
- a first mirror having a first axis upon which the first mirror can move;
- an optical component positioned to provide laser light to the first mirror on a light path perpendicular to the first axis;
- and
- a second mirror having a second axis upon which the second mirror can move, the second mirror positioned to receive light reflected from the first mirror on a straight line parallel to the second axis.
1 more element
An image projection arrangement comprising:
- at least one laser light source to provide a laser beam;
- a scanning assembly having first mirror oscillatable on a first axis and a second mirror oscillatable on a second axis;
- and
- an optical assembly positioned to direct the laser beam to the first mirror on a light path perpendicular to the first axis.
1 more element
A hand-held instrument comprising:
- a laser light source to provide a laser beam;
- a first mirror oscillatable on a first axis, the first mirror positioned to receive the laser beam on an optical path perpendicular to the first axis;
- and
- a second mirror oscillatable on a second axis, the second mirror positioned to receive the laser beam reflected from the first mirror, the second scan mirror operative to reflect and sweep the laser beam to form a raster pattern.
1 more element
Dependencies are inferred from the claim text.