Matches in SemOpenAlex for { <https://semopenalex.org/work/W1997757966> ?p ?o ?g. }
Showing items 1 to 78 of
78
with 100 items per page.
- W1997757966 abstract "We have developed a new optical system for projection television to achieve high luminance and excellent image quality with light weight compact size cabinet. This optical lens system has a hybrid structure employing four plastic and one glass lens. By introducing an aspherical surface on both sides of all plastic lenses, we have achieved an improvement of image quality over the entire screen. The lenses controlled to be thinner in this design method simplifies molding. Plastic lenses are imperfect in that they are subject to focus drift due to changes in ambient temperature. To minimize this effect, glass is employed in the main power lens. Furthermore, the lenses are arranged in such a way to eliminate the drift by optimum use of power distribution. This system has a short focal length and thus employs a single-reflection optical path system, ensuring a compact cabinet size and a reduction of chromatic abberation which cannot be achieved by simply introducing aspherical lenses. The design reduced the focal length from our conventional figure of 156 mm to 86 mm. Despite the large aperture FN0 of 1.0 an approximate increase of 30% in the MTF value has been achieved. The image quality is perfectly maintained over a temperature fluctuations of ± 20°C. Overall weight of the lens assembly has been reduced by 1/5. The system has been in operation in Pioneer 40 and 50 inch T.V. sets since 1987. The system is applicable to and essential for the future HDTV.© (1989) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only." @default.
- W1997757966 created "2016-06-24" @default.
- W1997757966 creator A5076892693 @default.
- W1997757966 date "1989-07-11" @default.
- W1997757966 modified "2023-09-23" @default.
- W1997757966 title "New Compact And High Resolution Optical Lens System For Projection Television" @default.
- W1997757966 doi "https://doi.org/10.1117/12.952842" @default.
- W1997757966 hasPublicationYear "1989" @default.
- W1997757966 type Work @default.
- W1997757966 sameAs 1997757966 @default.
- W1997757966 citedByCount "0" @default.
- W1997757966 crossrefType "proceedings-article" @default.
- W1997757966 hasAuthorship W1997757966A5076892693 @default.
- W1997757966 hasConcept C115961682 @default.
- W1997757966 hasConcept C120665830 @default.
- W1997757966 hasConcept C121332964 @default.
- W1997757966 hasConcept C15336307 @default.
- W1997757966 hasConcept C159108749 @default.
- W1997757966 hasConcept C191161701 @default.
- W1997757966 hasConcept C192562407 @default.
- W1997757966 hasConcept C196956537 @default.
- W1997757966 hasConcept C24890656 @default.
- W1997757966 hasConcept C31872934 @default.
- W1997757966 hasConcept C31972630 @default.
- W1997757966 hasConcept C41008148 @default.
- W1997757966 hasConcept C520434653 @default.
- W1997757966 hasConcept C55020928 @default.
- W1997757966 hasConcept C6260449 @default.
- W1997757966 hasConcept C73313986 @default.
- W1997757966 hasConcept C78336883 @default.
- W1997757966 hasConcept C82552819 @default.
- W1997757966 hasConcept C87367554 @default.
- W1997757966 hasConceptScore W1997757966C115961682 @default.
- W1997757966 hasConceptScore W1997757966C120665830 @default.
- W1997757966 hasConceptScore W1997757966C121332964 @default.
- W1997757966 hasConceptScore W1997757966C15336307 @default.
- W1997757966 hasConceptScore W1997757966C159108749 @default.
- W1997757966 hasConceptScore W1997757966C191161701 @default.
- W1997757966 hasConceptScore W1997757966C192562407 @default.
- W1997757966 hasConceptScore W1997757966C196956537 @default.
- W1997757966 hasConceptScore W1997757966C24890656 @default.
- W1997757966 hasConceptScore W1997757966C31872934 @default.
- W1997757966 hasConceptScore W1997757966C31972630 @default.
- W1997757966 hasConceptScore W1997757966C41008148 @default.
- W1997757966 hasConceptScore W1997757966C520434653 @default.
- W1997757966 hasConceptScore W1997757966C55020928 @default.
- W1997757966 hasConceptScore W1997757966C6260449 @default.
- W1997757966 hasConceptScore W1997757966C73313986 @default.
- W1997757966 hasConceptScore W1997757966C78336883 @default.
- W1997757966 hasConceptScore W1997757966C82552819 @default.
- W1997757966 hasConceptScore W1997757966C87367554 @default.
- W1997757966 hasLocation W19977579661 @default.
- W1997757966 hasOpenAccess W1997757966 @default.
- W1997757966 hasPrimaryLocation W19977579661 @default.
- W1997757966 hasRelatedWork W1998739392 @default.
- W1997757966 hasRelatedWork W2022820625 @default.
- W1997757966 hasRelatedWork W2026033154 @default.
- W1997757966 hasRelatedWork W2039599432 @default.
- W1997757966 hasRelatedWork W2393119714 @default.
- W1997757966 hasRelatedWork W3094833229 @default.
- W1997757966 hasRelatedWork W31519582 @default.
- W1997757966 hasRelatedWork W2399671858 @default.
- W1997757966 hasRelatedWork W2820164373 @default.
- W1997757966 hasRelatedWork W2839651315 @default.
- W1997757966 hasRelatedWork W2845910871 @default.
- W1997757966 hasRelatedWork W2851420052 @default.
- W1997757966 hasRelatedWork W2866225833 @default.
- W1997757966 hasRelatedWork W2869645860 @default.
- W1997757966 hasRelatedWork W2879530467 @default.
- W1997757966 hasRelatedWork W3097785143 @default.
- W1997757966 hasRelatedWork W3152201361 @default.
- W1997757966 hasRelatedWork W3166077793 @default.
- W1997757966 hasRelatedWork W3167330185 @default.
- W1997757966 hasRelatedWork W3178268552 @default.
- W1997757966 isParatext "false" @default.
- W1997757966 isRetracted "false" @default.
- W1997757966 magId "1997757966" @default.
- W1997757966 workType "article" @default.