Display system including curved diffuser
US-2024036328-A1 · Feb 1, 2024 · US
Virtual image display device
US9348140B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9348140-B2 |
| Application number | US-201414187469-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 24, 2014 |
| Priority date | Mar 13, 2013 |
| Publication date | May 24, 2016 |
| Grant date | May 24, 2016 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A virtual image display device includes: an image projection device that projects an image light; a diverging element on which the image light emitted from the image projection device is incident, spreading the image light out over a range of a predetermined angle; and a light branching element that reflects the image light emitted from the diverging element, while transmitting the incident light from the surface other than the reflecting surface. The image light from the image projection device is formed into an image on the diverging element. A virtual image of the image formed on the diverging element is generated on an extension line in the opposite direction to the emission direction of the image light reflected from the light branching element. Further, an optical axis converting element is provided to convert the optical axis of the image light emitted from the image projection device, into a predetermined direction.
First claim
Opening claim text (preview).
What is claimed is: 1. A virtual image display device comprising: an image projection device that projects an image light; a bend mirror that bends the optical axis of the image light emitted from the image projection device; an optical axis converting element that converts the optical axis of the image light reflected from the bend mirror into a predetermined direction; a diverging element on which the image light emitted from the optical axis converting element is incident…
Assignees
Inventors
Classifications
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9348140B2 cover?
- A virtual image display device includes: an image projection device that projects an image light; a diverging element on which the image light emitted from the image projection device is incident, spreading the image light out over a range of a predetermined angle; and a light branching element that reflects the image light emitted from the diverging element, while transmitting the incident lig…
- Who is the assignee on this patent?
- Hitachi Lg Data Storage Inc
- What technology area does this patent fall under?
- Primary CPC classification G02B5/0278. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue May 24 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).