GB1186752A - Improvements in or relating to Optical Apparatus - Google Patents

Improvements in or relating to Optical Apparatus

Info

Publication number
GB1186752A
GB1186752A GB5335669A GB5335669A GB1186752A GB 1186752 A GB1186752 A GB 1186752A GB 5335669 A GB5335669 A GB 5335669A GB 5335669 A GB5335669 A GB 5335669A GB 1186752 A GB1186752 A GB 1186752A
Authority
GB
United Kingdom
Prior art keywords
screen
relating
optical apparatus
march
projector
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
GB5335669A
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.)
Elco Corp
Original Assignee
Elco Corp
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 Elco Corp filed Critical Elco Corp
Publication of GB1186752A publication Critical patent/GB1186752A/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
    • G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
    • G03B31/06—Associated working of cameras or projectors with sound-recording or sound-reproducing means in which sound track is associated with successively-shown still pictures
    • 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
    • G03B21/14—Details
    • G03B21/30—Details adapted to collapse or fold, e.g. for portability
    • 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
    • G03B21/14—Details
    • G03B21/32—Details specially adapted for motion-picture projection
    • G03B21/321—Holders for films, e.g. reels, cassettes, spindles
    • G03B21/323—Cassettes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Endoscopes (AREA)

Abstract

1,186,752. Projection apparatus. ELCO CORP. March 17, 1967 [March 17, 1966], No.53356/69. Divided out of 1,186,751. Heading G2J. A film-strip projector may be used to project images either on to screen 61 of a collapsible screen unit 36 attached to the projector, or on to a distant screen when an adapter 200 comprising an inclined mirror 910 is placed over the projection lens, unit 36 being pivoted to one side for this purpose.
GB5335669A 1966-03-17 1967-03-17 Improvements in or relating to Optical Apparatus Expired GB1186752A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US53514966A 1966-03-17 1966-03-17

Publications (1)

Publication Number Publication Date
GB1186752A true GB1186752A (en) 1970-04-02

Family

ID=24133042

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1260767A Expired GB1186751A (en) 1966-03-17 1967-03-17 Improvements in or relating to Cartridges for Audio/Visual apparatus Utilizing a Sound Tape and a Film Strip
GB5335669A Expired GB1186752A (en) 1966-03-17 1967-03-17 Improvements in or relating to Optical Apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1260767A Expired GB1186751A (en) 1966-03-17 1967-03-17 Improvements in or relating to Cartridges for Audio/Visual apparatus Utilizing a Sound Tape and a Film Strip

Country Status (7)

Country Link
BE (1) BE695658A (en)
DE (1) DE1547278A1 (en)
FR (1) FR1514806A (en)
GB (2) GB1186751A (en)
IL (1) IL27587A (en)
NL (1) NL6704044A (en)
SE (1) SE320205B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5638010A (en) * 1995-06-07 1997-06-10 Analog Devices, Inc. Digitally controlled oscillator for a phase-locked loop providing a residue signal for use in continuously variable interpolation and decimation filters

Also Published As

Publication number Publication date
SE320205B (en) 1970-02-02
DE1547278A1 (en) 1970-02-19
FR1514806A (en) 1968-02-23
IL27587A (en) 1971-03-24
BE695658A (en) 1967-09-18
GB1186751A (en) 1970-04-02
NL6704044A (en) 1967-09-18

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees