GB1351821A - Optical arrangements - Google Patents

Optical arrangements

Info

Publication number
GB1351821A
GB1351821A GB4454771A GB4454771A GB1351821A GB 1351821 A GB1351821 A GB 1351821A GB 4454771 A GB4454771 A GB 4454771A GB 4454771 A GB4454771 A GB 4454771A GB 1351821 A GB1351821 A GB 1351821A
Authority
GB
United Kingdom
Prior art keywords
support
shafts
screens
path
optical
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.)
Expired
Application number
GB4454771A
Other languages
English (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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of GB1351821A publication Critical patent/GB1351821A/en
Expired 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
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/522—Projection optics
    • G03B27/525—Projection optics for slit exposure

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)
  • Projection-Type Copiers In General (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
GB4454771A 1970-10-14 1971-09-24 Optical arrangements Expired GB1351821A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9020870A JPS4948136B1 (fr) 1970-10-14 1970-10-14

Publications (1)

Publication Number Publication Date
GB1351821A true GB1351821A (en) 1974-05-01

Family

ID=13992053

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4454771A Expired GB1351821A (en) 1970-10-14 1971-09-24 Optical arrangements

Country Status (4)

Country Link
JP (1) JPS4948136B1 (fr)
DE (1) DE2151288C3 (fr)
FR (1) FR2111351A5 (fr)
GB (1) GB1351821A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000308A (en) * 1977-06-10 1979-01-04 Eocom Corp Optical scanning table

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533691A (en) * 1966-10-22 1970-10-13 Ricoh Kk Electrophotographic duplicator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000308A (en) * 1977-06-10 1979-01-04 Eocom Corp Optical scanning table
GB2000308B (en) * 1977-06-10 1982-04-15 Eocom Corp Precision travelling optical table assembly

Also Published As

Publication number Publication date
DE2151288B2 (de) 1981-05-21
DE2151288C3 (de) 1982-01-28
DE2151288A1 (de) 1972-07-20
JPS4948136B1 (fr) 1974-12-19
FR2111351A5 (fr) 1972-06-02

Similar Documents

Publication Publication Date Title
US1746407A (en) Facsimile-transmitting arrangement
ATE122458T1 (de) Überwachungseinrichtung für einen bandantrieb.
US2410104A (en) Light directing device
GB1483428A (en) Copying and telecopying device
US1792264A (en) Transmission of pictures
SE7902829L (sv) Automatisk maskeringsanordning for bildframstellningsapparat
GB1351821A (en) Optical arrangements
FR2451057A1 (fr) Machine a copier electrostatique
US3365580A (en) Film reader with transparent capstan and u-shaped light conducting rod
US2314027A (en) Facsimile transmitter
US2209719A (en) Telefacsimile method and apparatus
IT1238128B (it) Differenziale perfezionato a ridotto ingombro complessivo
GB334827A (en) Improvements in and relating to apparatus for receiving pictures or messages
US2319898A (en) Telephoto method and apparatus
GB1532082A (en) Optical exposure and scanning systems
GB1307918A (en) Imaging apparatus
US1800000A (en) Wireless picture transmission
US2864886A (en) Facsimile transmitter
GB1157769A (en) Improvements in or relating to Facsimile Reproduction apparatus
GB1486025A (en) Scanning apparatus for use in facsimile transmission and copying machines
GB1335697A (en) Optical projection apparatus
GB1341619A (en) Platen driving device for an electrophotographic copying machine
GB1402025A (en) Optical projection system
JPS55113059A (en) Electrophotographic copying device
US2013350A (en) Motion picture apparatus

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee