GB8905152D0 - Overhead projector - Google Patents

Overhead projector

Info

Publication number
GB8905152D0
GB8905152D0 GB898905152A GB8905152A GB8905152D0 GB 8905152 D0 GB8905152 D0 GB 8905152D0 GB 898905152 A GB898905152 A GB 898905152A GB 8905152 A GB8905152 A GB 8905152A GB 8905152 D0 GB8905152 D0 GB 8905152D0
Authority
GB
United Kingdom
Prior art keywords
overhead projector
projector
overhead
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GB898905152A
Other versions
GB2229014A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIPPON AIDEX CO Ltd
Original Assignee
NIPPON AIDEX CO Ltd
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 NIPPON AIDEX CO Ltd filed Critical NIPPON AIDEX CO Ltd
Priority to GB8905152A priority Critical patent/GB2229014A/en
Priority to FR8903244A priority patent/FR2644253A1/en
Priority to DE19893908871 priority patent/DE3908871A1/en
Publication of GB8905152D0 publication Critical patent/GB8905152D0/en
Publication of GB2229014A publication Critical patent/GB2229014A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
GB8905152A 1989-03-07 1989-03-07 Overhead projector optical system Withdrawn GB2229014A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB8905152A GB2229014A (en) 1989-03-07 1989-03-07 Overhead projector optical system
FR8903244A FR2644253A1 (en) 1989-03-07 1989-03-13 OVERHEAD PROJECTOR
DE19893908871 DE3908871A1 (en) 1989-03-07 1989-03-17 OVERHEAD PROJECTOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8905152A GB2229014A (en) 1989-03-07 1989-03-07 Overhead projector optical system

Publications (2)

Publication Number Publication Date
GB8905152D0 true GB8905152D0 (en) 1989-04-19
GB2229014A GB2229014A (en) 1990-09-12

Family

ID=10652859

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8905152A Withdrawn GB2229014A (en) 1989-03-07 1989-03-07 Overhead projector optical system

Country Status (3)

Country Link
DE (1) DE3908871A1 (en)
FR (1) FR2644253A1 (en)
GB (1) GB2229014A (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1146146A (en) * 1966-05-16 1969-03-19 Ronald Van Berlyn Optical projector
US3459475A (en) * 1966-11-14 1969-08-05 James Wortz Lucas Overhead projector
GB1299647A (en) * 1970-05-21 1972-12-13 Brunswick Corp Projection system
FR2455756A1 (en) * 1979-05-04 1980-11-28 Paul Freres M Ronnet Et Cie Epidiascope for transparencies and overlays - has dioptric lens which projects image onto fresnel lens on table for reflecting onto screen
DE3241956A1 (en) * 1982-11-12 1984-05-17 Demolux Gmbh & Co Kg, 6070 Langen Steel projector
DE3629771A1 (en) * 1986-09-02 1988-03-03 Demolux OVERHEAD PROJECTOR
JPH01204036A (en) * 1988-02-10 1989-08-16 Nippon Aidetsukusu Kk Overhead projector

Also Published As

Publication number Publication date
FR2644253A1 (en) 1990-09-14
GB2229014A (en) 1990-09-12
DE3908871A1 (en) 1990-09-20

Similar Documents

Publication Publication Date Title
AU111543S (en) Can
AU108277S (en) Hedge-shears
GB2236778B (en) Keystone set
CS490790A3 (en) Chaff-cutter
AU109488S (en) Lamp
EP0434663A3 (en) Dampingelement for skiboots
ZA905681B (en) Certain glyoxyl-cyclohexendiones
BG49771A1 (en) Electric- bow evaparator
EP0492213A3 (en) Overhead projector
EP0414994A3 (en) Overhead exposure unit
AU110218S (en) Over head projector
GB8905152D0 (en) Overhead projector
EP0431718A3 (en) Slide projector
AU106754S (en) Slide projector
GB9120015D0 (en) Overhead projectors
GB9115079D0 (en) Overhead projectors
GB8922098D0 (en) Masking unit for overhead projectors
CA64463S (en) Tapeplayer
CA64817S (en) Liminaire
CA64838S (en) Automibile
PL270466A2 (en) Projector
DK379689D0 (en) TV OVERHEAD PROJECTOR
CS379387A1 (en) Panoramatic projector
AU106535S (en) Lantern
GB8909881D0 (en) Lamp

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)