See-through computer display systems
US-2015205035-A1 · Jul 23, 2015 · US
Compact optical system for head-worn computer
US2016154244A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016154244-A1 |
| Application number | US-201514955615-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 1, 2015 |
| Priority date | Jan 21, 2014 |
| Publication date | Jun 2, 2016 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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An optical system for a head-worn computer includes a light source positioned within the head-worn computer and adapted to project polarized illuminating light towards a partially reflective partially transmissive surface such that the illuminating light reflects through a field lens and towards a reflective display. The illuminating light reflects off a surface of the reflective display, forming image light. The image light is then transmitted through the field lens and then through the partially reflective partially transmissive surface to a lower display optical system adapted to present the image light to an eye of a user wearing the head-worn computer.
First claim
Opening claim text (preview).
What is claimed is: 1 . An optical system for a head-worn computer, comprising: a light source positioned within the head-worn computer and adapted to project polarized illuminating light towards a partially reflective partially transmissive surface such that the illuminating light reflects through a field lens and towards a reflective display, wherein the illuminating light reflects off a surface of the reflective display, forming image light, and wherein the image light is then transmitted through the field lens and then through the partially reflective partially transmissive surface to a lower display optical system adapted to present the image light to an eye of a user wearing the head-worn computer. 2 . The optical system of claim 1 , wherein the partially reflective partially transmissive surface is a film that includes a flat segment. 3 . The optical system of claim 1 , wherein the partially reflective partially transmissive surface is a reflective polarizer. 4 . The optical system of claim 3 , wherein the reflective display is an LCOS or an FLCOS. 5 . The optical system of claim 1 , wherein the field lens has less than 30 nm birefringence. 6 . The optical system of claim 1 , wherein the lower display optical system also provides a see-through view of the surrounding environment. 7 . The optical system of claim 1 , wherein the partially reflective partially transmissive surface is a combined polarizer including a centrally located reflective polarizer that reflects illuminating light to an active area of the reflective display, attached to a larger absorptive polarizer, that absorbs excess illuminating light.
Assignees
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Classifications
involving arrangement aiming to get less bulky devices · CPC title
Arrangements for interaction with the human body, e.g. for user immersion in virtual reality (blind teaching G09B21/00) · CPC title
Eyeglass type (eyeglass details G02C) · CPC title
with means for altering, e.g. increasing, the depth of field or depth of focus · CPC title
Polarising elements (light-modulating devices with active elements G02F1/00) · CPC title
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- What does patent US2016154244A1 cover?
- An optical system for a head-worn computer includes a light source positioned within the head-worn computer and adapted to project polarized illuminating light towards a partially reflective partially transmissive surface such that the illuminating light reflects through a field lens and towards a reflective display. The illuminating light reflects off a surface of the reflective display, formi…
- Who is the assignee on this patent?
- Osterhout Group Inc
- What technology area does this patent fall under?
- Primary CPC classification G02B27/0172. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Jun 02 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).