BE829494A - Objectif de projection - Google Patents

Objectif de projection

Info

Publication number
BE829494A
BE829494A BE156716A BE156716A BE829494A BE 829494 A BE829494 A BE 829494A BE 156716 A BE156716 A BE 156716A BE 156716 A BE156716 A BE 156716A BE 829494 A BE829494 A BE 829494A
Authority
BE
Belgium
Prior art keywords
projection objective
objective
projection
Prior art date
Application number
BE156716A
Other languages
English (en)
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 filed Critical
Publication of BE829494A publication Critical patent/BE829494A/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/12—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only
    • G02B9/14—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only arranged + - +
    • G02B9/16—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only arranged + - + all the components being simple
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/34—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
BE156716A 1974-05-29 1975-05-26 Objectif de projection BE829494A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7407134A SE382262B (sv) 1974-05-29 1974-05-29 Projektionsoptik.

Publications (1)

Publication Number Publication Date
BE829494A true BE829494A (fr) 1975-09-15

Family

ID=20321270

Family Applications (1)

Application Number Title Priority Date Filing Date
BE156716A BE829494A (fr) 1974-05-29 1975-05-26 Objectif de projection

Country Status (21)

Country Link
JP (1) JPS513228A (fr)
AT (1) AT351828B (fr)
BE (1) BE829494A (fr)
BR (1) BR7503348A (fr)
CA (1) CA1050314A (fr)
CH (1) CH585910A5 (fr)
CS (1) CS192543B2 (fr)
DD (1) DD120942A5 (fr)
DE (1) DE2519991A1 (fr)
DK (1) DK238075A (fr)
ES (1) ES436963A1 (fr)
FI (1) FI751515A (fr)
FR (1) FR2273290B1 (fr)
GB (1) GB1474847A (fr)
HU (1) HU175781B (fr)
IT (1) IT1037780B (fr)
NL (1) NL7506296A (fr)
NO (1) NO139872C (fr)
PL (1) PL104910B1 (fr)
SE (1) SE382262B (fr)
SU (1) SU625640A3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311366A (en) * 1978-03-01 1982-01-19 J. H. Dallmeyer Limited Image focusing system
US4380374A (en) * 1981-04-16 1983-04-19 Minnesota Mining & Manufacturing Company Variable focal length projection lens for use on overhead projectors
JP2691566B2 (ja) * 1988-06-14 1997-12-17 旭光学工業株式会社 拡大投影レンズ
JP2954217B2 (ja) * 1987-12-09 1999-09-27 株式会社日立製作所 投写用レンズ

Also Published As

Publication number Publication date
ATA398475A (de) 1979-01-15
PL104910B1 (pl) 1979-09-29
SE7407134L (sv) 1975-12-01
NL7506296A (nl) 1975-12-02
ES436963A1 (es) 1976-12-01
CS192543B2 (en) 1979-08-31
NO751480L (fr) 1975-12-02
BR7503348A (pt) 1976-04-27
DD120942A5 (fr) 1976-07-05
HU175781B (hu) 1980-10-28
SU625640A3 (ru) 1978-09-25
JPS513228A (fr) 1976-01-12
FR2273290B1 (fr) 1980-07-11
NO139872B (no) 1979-02-12
DE2519991A1 (de) 1975-12-18
SE382262B (sv) 1976-01-19
DK238075A (da) 1975-11-30
AU8129275A (en) 1976-11-25
FI751515A (fr) 1975-11-30
FR2273290A1 (fr) 1975-12-26
CH585910A5 (fr) 1977-03-15
CA1050314A (fr) 1979-03-13
IT1037780B (it) 1979-11-20
GB1474847A (en) 1977-05-25
NO139872C (no) 1979-05-23
AT351828B (de) 1979-08-10

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