IT1148579B - Sistema per la proiezione di caratteri con lenti asferiche - Google Patents

Sistema per la proiezione di caratteri con lenti asferiche

Info

Publication number
IT1148579B
IT1148579B IT48579/82A IT4857982A IT1148579B IT 1148579 B IT1148579 B IT 1148579B IT 48579/82 A IT48579/82 A IT 48579/82A IT 4857982 A IT4857982 A IT 4857982A IT 1148579 B IT1148579 B IT 1148579B
Authority
IT
Italy
Prior art keywords
projection system
aspherical lenses
character projection
character
aspherical
Prior art date
Application number
IT48579/82A
Other languages
English (en)
Other versions
IT8248579A0 (it
Inventor
Richard M Altman
Original Assignee
Ind Electronic Engineers
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 Ind Electronic Engineers filed Critical Ind Electronic Engineers
Publication of IT8248579A0 publication Critical patent/IT8248579A0/it
Application granted granted Critical
Publication of IT1148579B publication Critical patent/IT1148579B/it

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/40—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character is selected from a number of characters arranged one beside the other, e.g. on a common carrier plate
    • G09F9/405—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character is selected from a number of characters arranged one beside the other, e.g. on a common carrier plate the selected character being projected on a common screen accommodating only one character at a time, to provide the same display position for all characters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0009—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only
    • G02B19/0014—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only at least one surface having optical power
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Lenses (AREA)
  • Projection Apparatus (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
IT48579/82A 1981-11-18 1982-06-03 Sistema per la proiezione di caratteri con lenti asferiche IT1148579B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/322,516 US4448504A (en) 1981-11-18 1981-11-18 Rear end projection system employing aspherical lenses

Publications (2)

Publication Number Publication Date
IT8248579A0 IT8248579A0 (it) 1982-06-03
IT1148579B true IT1148579B (it) 1986-12-03

Family

ID=23255221

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48579/82A IT1148579B (it) 1981-11-18 1982-06-03 Sistema per la proiezione di caratteri con lenti asferiche

Country Status (7)

Country Link
US (1) US4448504A (it)
JP (1) JPS5891424A (it)
DE (1) DE3235057A1 (it)
ES (1) ES509598A0 (it)
FR (1) FR2516669B1 (it)
GB (1) GB2110408B (it)
IT (1) IT1148579B (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143962A (en) * 1983-07-25 1985-02-20 Philips Electronic Associated Projection lens systems
GB2143963A (en) * 1983-07-25 1985-02-20 Philips Electronic Associated Projection lens system
US4969734A (en) * 1986-05-09 1990-11-13 Greyhawk Systems, Inc. Apparatus and method of forming and projecting high precision optical images
US5085506A (en) * 1986-05-09 1992-02-04 Greyhawk Systems, Inc. Apparatus and method of forming and projecting high precision optical images
US4818098A (en) * 1986-05-09 1989-04-04 Sharp Corporation Apparatus and method of forming and projecting high precision optical images
US5535061A (en) * 1994-01-24 1996-07-09 Juno Enterprises, Inc. Rotary scanner
RU2126986C1 (ru) * 1997-11-24 1999-02-27 АРСЕНИЧ Святослав Иванович Оптический растровый конденсор и оптическое изделие с растровым конденсором
JP2001272726A (ja) * 2000-03-23 2001-10-05 Sony Corp 光学装置およびそれを用いた投射型表示装置
KR100450815B1 (ko) * 2002-02-01 2004-10-01 삼성전자주식회사 조명계 및 이를 채용한 프로젝션 디스플레이 장치
FR2863546B1 (fr) * 2004-02-11 2010-10-29 David Luo Dispositif electronique d'affichage variable et selectif de signaux lumineux de nature et de forme multiples sur une meme surface
FR2863724B1 (fr) * 2004-02-11 2010-06-11 David Luo Procede et dispositif d'affichage, un afficheur et un clavier les mettant en oeuvre
KR20060025028A (ko) * 2004-09-15 2006-03-20 삼성전자주식회사 프로젝션 텔레비전
FR2881853B3 (fr) * 2005-02-10 2008-06-27 David Luo Dispositif et procede d'affichage, afficheur et clavier les mettant en oeuvre
IT1391091B1 (it) * 2008-07-15 2011-11-18 Fraen Corp Srl Dispositivo di illuminazione a fascio luminoso regolabile, in particolare per una torcia elettrica
DE202009011500U1 (de) * 2009-08-20 2010-12-30 Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg Optisches System für eine LED-Leuchte
DE102010024700A1 (de) * 2010-06-23 2011-12-29 Trw Automotive Electronics & Components Gmbh Symbol-Anzeigeelement für einen Fahrzeug-Innenraum
JP7183611B2 (ja) * 2018-07-30 2022-12-06 セイコーエプソン株式会社 虚像表示装置
DE102022117917A1 (de) 2022-07-18 2024-01-18 Ams OSRAM Automotive Lighting Systems GmbH Projektoranordnung und projektionssystem
DE102022210090A1 (de) 2022-09-23 2024-03-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Optischer strahlformer und maskenloser zeichenprojektor

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1621741A (en) * 1924-08-20 1927-03-22 Bausch & Lomb Projecting system for cinematographs
US2637242A (en) * 1949-02-08 1953-05-05 American Optical Corp Condenser lens system for projectors
US2931027A (en) * 1956-10-19 1960-03-29 Bell Telephone Labor Inc Visual display apparatus
FR1232895A (fr) * 1958-08-22 1960-10-12 K G M Electronics Ltd Perfectionnements aux indicateurs
FR1364879A (fr) * 1963-07-18 1964-06-26 Construction de lentilles perfectionnée pour ensembles de projection de caractères
US3244071A (en) * 1965-03-05 1966-04-05 Donald G Gumpertz Lens construction for character projection units
US3332318A (en) * 1965-09-20 1967-07-25 Ind Electronic Engineers Character projection unit
US3609012A (en) * 1969-10-06 1971-09-28 Spindler & Sauppe Inc Optical condensing system with variable effective focal length
US3877792A (en) * 1974-04-12 1975-04-15 Bell & Howell Co Short focal length, large aperture optical system
US4145131A (en) * 1975-07-10 1979-03-20 Izon Corporation Compact camera and viewer apparatus
US4163604A (en) * 1977-12-23 1979-08-07 U.S. Precision Lens, Inc. Projection lens

Also Published As

Publication number Publication date
GB2110408A (en) 1983-06-15
US4448504A (en) 1984-05-15
ES8308081A1 (es) 1983-08-16
IT8248579A0 (it) 1982-06-03
FR2516669B1 (it) 1987-12-31
GB2110408B (en) 1985-04-24
FR2516669A1 (it) 1983-05-20
JPS5891424A (ja) 1983-05-31
DE3235057A1 (de) 1983-06-01
ES509598A0 (es) 1983-08-16

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