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- Keystone_effect abstract "The keystone effect, also known as the tombstone effect, is caused by attempting to project an image onto a surface at an angle, as with a projector not quite centered onto the screen it is projecting on. It is a distortion of the image dimensions, making it look like a trapezoid, the shape of an architectural keystone; hence the name of the feature. In the typical case of a projector sitting on a table, and looking upwards to the screen, the image is larger at the top than on the bottom.Some areas of the screen may not be focused correctly as the projector lens is focused at the average distance only.".
- Keystone_effect thumbnail Vertical-keystone.jpg?width=300.
- Keystone_effect wikiPageID "10461151".
- Keystone_effect wikiPageRevisionID "597419768".
- Keystone_effect hasPhotoCollection Keystone_effect.
- Keystone_effect subject Category:Projectors.
- Keystone_effect type Artifact100021939.
- Keystone_effect type Device103183080.
- Keystone_effect type Instrumentality103575240.
- Keystone_effect type Object100002684.
- Keystone_effect type OpticalDevice103851341.
- Keystone_effect type PhysicalEntity100001930.
- Keystone_effect type Projector104009801.
- Keystone_effect type Projectors.
- Keystone_effect type Whole100003553.
- Keystone_effect comment "The keystone effect, also known as the tombstone effect, is caused by attempting to project an image onto a surface at an angle, as with a projector not quite centered onto the screen it is projecting on. It is a distortion of the image dimensions, making it look like a trapezoid, the shape of an architectural keystone; hence the name of the feature.".
- Keystone_effect label "Keystone effect".
- Keystone_effect label "Keystone-Korrektur".
- Keystone_effect sameAs Keystone-Korrektur.
- Keystone_effect sameAs m.02qdvy8.
- Keystone_effect sameAs Q1740343.
- Keystone_effect sameAs Q1740343.
- Keystone_effect sameAs Keystone_effect.
- Keystone_effect wasDerivedFrom Keystone_effect?oldid=597419768.
- Keystone_effect depiction Vertical-keystone.jpg.
- Keystone_effect isPrimaryTopicOf Keystone_effect.
