GB2305513A - Stereoscopic viewing aid - Google Patents

Stereoscopic viewing aid Download PDF

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Publication number
GB2305513A
GB2305513A GB9519216A GB9519216A GB2305513A GB 2305513 A GB2305513 A GB 2305513A GB 9519216 A GB9519216 A GB 9519216A GB 9519216 A GB9519216 A GB 9519216A GB 2305513 A GB2305513 A GB 2305513A
Authority
GB
United Kingdom
Prior art keywords
viewing
aid
plates
viewer
recess
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9519216A
Other versions
GB9519216D0 (en
Inventor
Peter Graham Shearing
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9519216A priority Critical patent/GB2305513A/en
Publication of GB9519216D0 publication Critical patent/GB9519216D0/en
Publication of GB2305513A publication Critical patent/GB2305513A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers
    • G02B30/37—Collapsible stereoscopes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

A viewing aid comprises two opaque plates 10 each with a viewing aperture 11. The plates connect with one another by means of a tongue 13 attached to one of the plates which inserts into a recess 14 in the other plate. The tongue can slide freely back and forth within the recess, allowing the distance between the plates to be adjusted. Hinged arms 12 are provided at the outer edges of the plates which hook behind the viewer's ears. When used to view stereoscopic pictures the aid can then be adjusted to assist the eyes in converging at the correct angle to observe the intended three-dimensional effect. The viewer's central field of vision is obscured.

Description

STEREOSCOPIC VIEWIN13 AID This invention relates to a stereoscopic viewing aid.
A variety of pictures are available which, when suitably viewed, can create the illusion of a three-dimensional image. Sane of these are created using stereoscopic cameras which produce pairs of near-identical photographs. Another type is the "autostereogram", where a single computer-generated picture contains repeated patterns which when suitably viewed, create a sensation of three-dimensional depth.
Publications which contain such pictures often suggest techniques for observing this three-dimensional effect, most of which are designed to encourage the eyes to diverge as if focusing in a plane beyond the picture. However, many people find it difficult, or impossible, to experience this phenomenon without artificial aid, as their eyes are conditioned to focus in the same plane as the picture.
According to the present invention there is provided a viewing aid which by obscuring the viewer's central field of vision, encourages the eyes to diverge and thus align with the repeated images, as required to observe the three-dimensional illusion. A means of varying the field of view obscured is provided, to allow for the difference in eye separation from one person to the next, and to facilitate fine-tuning of the diverging effect.
A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawing in which: Figure 1 shows in perspective, the viewing aid fully assembled; Figure 2 illustrates the viewing aid with the extendable bridge removed from the matching recess; Figure 3 shows in plan view, a schematic diagram of the viewing aid in use.
Referring to the drawing the viewing aid comprises two opaque plates 10 each with a viewing hole 11 and hinged arm 12 designed to hook behind each ear of the viewer. The plates are connected to one another in such a way that the distance between the viewing holes can be varied.
One of the plates has attached to it a tongue 13 which forms a bridge which rests on the viewer's nose. This tongue inserts into a recess 14 in the other plate and can slide freely back and forth within this recess.
The tongue is shown inserted into the recess in Figure 1. The viewer can then vary his/her field of view by sliding the plates nearer to one another or further from one another. The tongue is shown removed fram the recess in Figure 2. A means may be provided of preventing the tongue fran being fully removed fran the recess once assembled (not shown).
When in use, the viewing aid can be adjusted to restrict the viewer's field of view such that his/her shortest focal distance is greater than the distance between the viewer and the picture being viewed, thus preventing focusing in the plane of the picture and encouraging each eye to look at a different point on the picture as shown in Figure 3.

Claims (8)

1 A viewing aid for use in conjunction with stereoscopic pictures, comprising a means of obscuring the viewer's central field of vision, in such a way that the obscuration can be varied.
2 A viewing aid as claimed in Claim 1 wherein the means of obscurement comprises opaque material through which two viewing holes have been made.
3 A viewing aid as claimed in Claim 1 wherein the means of obscurement comprises opaque material with viewing apertures made from transparent material.
4 A viewing aid as claimed in Claim 2 or Claim 3, wherein the means of obscurement comprises two plates which interact with one another in such a way that the distance between them can be adjusted.
5 A viewing aid as claimed in any preceding claim, wherein the means of connection between the two viewing areas comprises a tongue attached to one of the viewing areas which inserts into a recess in the other viewing area, in such a way that the tongue can slide freely back and forth within the recess.
6 A viewing aid as claimed in any preceding claim, wherein two arms are provided which secure the aid by hooking behind the viewer's ears.
7 A viewing aid as claimed in Claim 6, wherein hinges are provided to connect the as to the viewing areas.
8 A viewing aid substantially as described herein with reference to Figures 1-3 of the accompanying drawing.
GB9519216A 1995-09-20 1995-09-20 Stereoscopic viewing aid Withdrawn GB2305513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9519216A GB2305513A (en) 1995-09-20 1995-09-20 Stereoscopic viewing aid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9519216A GB2305513A (en) 1995-09-20 1995-09-20 Stereoscopic viewing aid

Publications (2)

Publication Number Publication Date
GB9519216D0 GB9519216D0 (en) 1995-11-22
GB2305513A true GB2305513A (en) 1997-04-09

Family

ID=10781004

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9519216A Withdrawn GB2305513A (en) 1995-09-20 1995-09-20 Stereoscopic viewing aid

Country Status (1)

Country Link
GB (1) GB2305513A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795185A1 (en) * 1999-06-17 2000-12-22 Alain Leseine Pseudo-stereoscopic image conversion eyeglasses, for viewing flat photograph or TV screen, has opaque lenses with central adjustable position diaphragm and adjustable frame support

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB529106A (en) * 1939-05-12 1940-11-14 Keller Alfred Improvements in goggles
GB564297A (en) * 1943-06-17 1944-09-21 Reginald Dawes Spinney Improvements in stereoscopes for viewing left and right eye pictures separately displayed or projected
GB591005A (en) * 1945-07-19 1947-08-05 Charles Laurence Burdick Spectacle frames
GB774137A (en) * 1954-09-29 1957-05-08 Arthur Abplanalp Spectacles for the use of television viewers
US4027947A (en) * 1975-12-12 1977-06-07 Taylor Leonard J Optical device for providing a three dimensional view of a two dimensional image
WO1990015356A1 (en) * 1989-06-08 1990-12-13 Donald Edmund Trumbull Stereoscopic viewing apparatus and method and related stereoscopic recording
US4986632A (en) * 1988-05-20 1991-01-22 Eckmann Rolfe W Apparatus for assisting viewing of stereoscopic displays
WO1992007292A1 (en) * 1990-10-10 1992-04-30 The Big Four Optics Ab 3d-spectacles

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB529106A (en) * 1939-05-12 1940-11-14 Keller Alfred Improvements in goggles
GB564297A (en) * 1943-06-17 1944-09-21 Reginald Dawes Spinney Improvements in stereoscopes for viewing left and right eye pictures separately displayed or projected
GB591005A (en) * 1945-07-19 1947-08-05 Charles Laurence Burdick Spectacle frames
GB774137A (en) * 1954-09-29 1957-05-08 Arthur Abplanalp Spectacles for the use of television viewers
US4027947A (en) * 1975-12-12 1977-06-07 Taylor Leonard J Optical device for providing a three dimensional view of a two dimensional image
US4986632A (en) * 1988-05-20 1991-01-22 Eckmann Rolfe W Apparatus for assisting viewing of stereoscopic displays
WO1990015356A1 (en) * 1989-06-08 1990-12-13 Donald Edmund Trumbull Stereoscopic viewing apparatus and method and related stereoscopic recording
WO1992007292A1 (en) * 1990-10-10 1992-04-30 The Big Four Optics Ab 3d-spectacles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795185A1 (en) * 1999-06-17 2000-12-22 Alain Leseine Pseudo-stereoscopic image conversion eyeglasses, for viewing flat photograph or TV screen, has opaque lenses with central adjustable position diaphragm and adjustable frame support

Also Published As

Publication number Publication date
GB9519216D0 (en) 1995-11-22

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Legal Events

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)