← Back to Patent Explorer
US5371556A Expired / Lapsed US ⏱️ 0.0 years remaining

Spectacle type retina direct display apparatus

Assignee: Sony Corp
•
Filing: 1992-12-15
•
Granted: 1994-12-06
•
Expires: 2012-12-15
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A display apparatus for displaying a visual image to retina directly is comprised of an eye lens, a transparent display panel on which a picture image is displayed, a point source of light, and a mirror for reflecting a light which is emitted from the point source of light through the display panel to the eye lens to focus a real image on the user's retina.

Inventors

  • 👤 Hisashi Suwa
  • 👤 Seizi Sato

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 18:21
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/01; G02B27/017; G02B27/0176; G02B27/0172; G02B27/0101; G02B2027/0132; G02B2027/0136; G02B27/0149; G02B2027/0154; G02B2027/0156; G02B2027/0159; G02B2027/0178

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 219 words
A display apparatus for displaying a visual image through a crystalline lens in a user's eyeball to a retina of the user of the display apparatus comprising: a) a lens means; b) a transparent display panel on which a picture image is displayed; c) a point source of light; d) a mirror means for reflecting a light which is emitted from the point source of light through the display panel to the lens means and wherein the lens means has a focal point at the pupil of an eye of the user so that the picture image on the display screen is focussed on the crystalline lens of the user's eyeball which focusses the picture image on the user's retina; and e) wherein the point source of light is a single point source of light and further comprising a pair of lens means, a pair of transparent display panels, a pair of mirror means, and a frame shaped like eye-glasses for supporting the pair of lens means, the pair of transparent display panels, the point source of light and the pair of mirror means, and further including means for adjustably spacing apart the pair of lens means, the pair of transparent display panels, and the pair of mirror means to accommodate different spacings between the eyeballs of different users.
Claim 2
Dependent Claim 219 words
A display apparatus for displaying a visual image through a crystalline lens in a user's eyeball to a retina of the user of the display apparatus comprising: a) a lens means; b) a transparent display panel on which a picture image is displayed; c) a point source of light; d) a mirror means for reflecting a light which is emitted from the point source of light through the display panel to the lens means and wherein the lens means has a focal point at the pupil of an eye of the user so that the picture image on the display screen is focussed on the crystalline lens of the user's eyeball which focusses the picture image on the user's retina; and e) wherein the point source of light is a single point source of light and further comprising a pair of lens means, a pair of transparent display panels, a pair of mirror means, and a frame shaped like eye-glasses for supporting the pair of lens means, the pair of transparent display panels, the point source of light and the pair of mirror means, and further including means for adjustably spacing apart the pair of lens means, the pair of transparent display panels, and the pair of mirror means to accommodate different spacings between the eyeballs of different users.
Claim 3
Dependent Claim 30 words
A display apparatus for displaying a visual image according to claim 1, wherein the light emitted by the single point source of light is utilized by each lens means individually.
Claim 4
Dependent Claim 42 words
A display apparatus for displaying a visual image according to claim 2, wherein the single point source of light is located between a position of a left eye and a position of a right eye of the user of the display apparatus.
Claim 5
Dependent Claim 34 words
A display apparatus for displaying a visual image according to claim 1, wherein an imaginary axis passed through the center of the lens means is directed to a lower angle than a horizontal line.
Claim 6
Dependent Claim 41 words
A display apparatus for displaying a visual image according to claim 1, further comprising arm means connected to the frame which is attached to an auditory opening of an ear of the user of the display apparatus to support the frame.
Claim 7
Dependent Claim 23 words
A display apparatus for displaying a visual image according to claim 5, wherein the arm means have loudspeakers to reproduce an audio signal.
Claim 8
Dependent Claim 95 words
A display apparatus for directly displaying a visual image to a retina of a user of the display apparatus comprising: a) lens means having a predetermined focal length of about 20 mm; b) a transparent display panel on which a picture image is displayed; c) a point source of light; and d) mirror means for reflecting a light which is emitted from the point source of light through the transparent display panel to the lens means and wherein the lens means focuses the picture image on the retina of the user of the display apparatus.
Claim 9
Dependent Claim 95 words
A display apparatus for directly displaying a visual image to a retina of a user of the display apparatus comprising: a) lens means having a predetermined focal length of about 20 mm; b) a transparent display panel on which a picture image is displayed; c) a point source of light; and d) mirror means for reflecting a light which is emitted from the point source of light through the transparent display panel to the lens means and wherein the lens means focuses the picture image on the retina of the user of the display apparatus.

References Cited (Backward Citations)

DE1103961B Cited
US4636866A Cited
US4706117A Cited
US4952024A Cited
US4805988A Cited
US5129716A Cited
US4933755A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1997-12-05 1998-06-06 1998-12-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2001-12-05 2002-06-06 2002-12-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2005-12-05 2006-06-06 2006-12-06 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag