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- Pinhole_(optics) abstract "A pinhole is a small circular hole, as could be made with the point of a pin. In optics, pinholes with diameter between a few micrometers and a hundred micrometers are used as apertures in optical systems. Pinholes are commonly used to spatially filter a beam (such as a laser beam), where the small pinhole acts as a low-pass filter for spatial frequencies in the image plane of the beam.A small pinhole can act as a lens, focusing light. This effect is used in pinhole cameras. This effect is also used in pinhole occluders, which are used by ophthalmologists, orthoptists and optometrists to test visual acuity. The same principle has also been applied as an alternative to corrective lenses: a screen of pinholes is mounted on an eyeglass frame and worn as pinhole glasses.".
- Pinhole_(optics) thumbnail Image_of_a_damaged,_80µm_pinhole.jpg?width=300.
- Pinhole_(optics) wikiPageID "41628992".
- Pinhole_(optics) wikiPageLength "1610".
- Pinhole_(optics) wikiPageOutDegree "22".
- Pinhole_(optics) wikiPageRevisionID "649936456".
- Pinhole_(optics) wikiPageWikiLink Aperture.
- Pinhole_(optics) wikiPageWikiLink Camera_obscura.
- Pinhole_(optics) wikiPageWikiLink Category:Optical_devices.
- Pinhole_(optics) wikiPageWikiLink Conjugate_focal_plane.
- Pinhole_(optics) wikiPageWikiLink Corrective_lens.
- Pinhole_(optics) wikiPageWikiLink Fourier_optics.
- Pinhole_(optics) wikiPageWikiLink Glasses.
- Pinhole_(optics) wikiPageWikiLink Laser.
- Pinhole_(optics) wikiPageWikiLink Lens_(optics).
- Pinhole_(optics) wikiPageWikiLink Micrometre.
- Pinhole_(optics) wikiPageWikiLink Ophthalmology.
- Pinhole_(optics) wikiPageWikiLink Optics.
- Pinhole_(optics) wikiPageWikiLink Optometry.
- Pinhole_(optics) wikiPageWikiLink Orthoptics.
- Pinhole_(optics) wikiPageWikiLink Pin.
- Pinhole_(optics) wikiPageWikiLink Pinhole_camera.
- Pinhole_(optics) wikiPageWikiLink Pinhole_glasses.
- Pinhole_(optics) wikiPageWikiLink Pinhole_occluder.
- Pinhole_(optics) wikiPageWikiLink Spatial_filter.
- Pinhole_(optics) wikiPageWikiLink Spatial_frequency.
- Pinhole_(optics) wikiPageWikiLink Visual_acuity.
- Pinhole_(optics) wikiPageWikiLink File:Image_of_a_damaged,_80µm_pinhole.jpg.
- Pinhole_(optics) wikiPageWikiLinkText "Pinhole (optics)".
- Pinhole_(optics) wikiPageWikiLinkText "pinhole".
- Pinhole_(optics) wikiPageUsesTemplate Template:Optics-stub.
- Pinhole_(optics) wikiPageUsesTemplate Template:Reflist.
- Pinhole_(optics) subject Category:Optical_devices.
- Pinhole_(optics) hypernym Hole.
- Pinhole_(optics) type Place.
- Pinhole_(optics) comment "A pinhole is a small circular hole, as could be made with the point of a pin. In optics, pinholes with diameter between a few micrometers and a hundred micrometers are used as apertures in optical systems. Pinholes are commonly used to spatially filter a beam (such as a laser beam), where the small pinhole acts as a low-pass filter for spatial frequencies in the image plane of the beam.A small pinhole can act as a lens, focusing light. This effect is used in pinhole cameras.".
- Pinhole_(optics) label "Pinhole (optics)".
- Pinhole_(optics) sameAs Q17092468.
- Pinhole_(optics) sameAs m.0_8kk6_.
- Pinhole_(optics) sameAs Q17092468.
- Pinhole_(optics) wasDerivedFrom Pinhole_(optics)?oldid=649936456.
- Pinhole_(optics) depiction Image_of_a_damaged,_80µm_pinhole.jpg.
- Pinhole_(optics) isPrimaryTopicOf Pinhole_(optics).