FR56154E - - Google Patents
Info
- Publication number
- FR56154E FR56154E FR56154DA FR56154E FR 56154 E FR56154 E FR 56154E FR 56154D A FR56154D A FR 56154DA FR 56154 E FR56154 E FR 56154E
- Authority
- FR
- France
- 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.)
- Expired
Links
Classifications
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- 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
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR56154E true FR56154E (en) | 1952-09-30 |
Family
ID=1363486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR56154D Expired FR56154E (en) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR56154E (en) |
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0
- FR FR56154D patent/FR56154E/fr not_active Expired