CA974761A - Moire fringe optical display and projection equipment - Google Patents

Moire fringe optical display and projection equipment

Info

Publication number
CA974761A
CA974761A CA157,107A CA157107A CA974761A CA 974761 A CA974761 A CA 974761A CA 157107 A CA157107 A CA 157107A CA 974761 A CA974761 A CA 974761A
Authority
CA
Canada
Prior art keywords
optical display
projection equipment
moire fringe
fringe optical
moire
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
CA157,107A
Other languages
English (en)
Other versions
CA157107S (en
Inventor
Brian T. Crawford
David A.W. Henderson
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.)
PENNANT DISPLAY AND ENGINEERING Ltd
Original Assignee
PENNANT DISPLAY AND ENGINEERING 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
Priority claimed from GB2645272A external-priority patent/GB1449601A/en
Priority claimed from GB3186272A external-priority patent/GB1432144A/en
Priority claimed from GB3351372A external-priority patent/GB1444223A/en
Application filed by PENNANT DISPLAY AND ENGINEERING Ltd filed Critical PENNANT DISPLAY AND ENGINEERING Ltd
Application granted granted Critical
Publication of CA974761A publication Critical patent/CA974761A/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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/32—Details specially adapted for motion-picture projection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F1/00—Designs or pictures characterised by special or unusual light effects
    • B44F1/08—Designs or pictures characterised by special or unusual light effects characterised by colour effects
    • B44F1/10—Changing, amusing, or secret pictures
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/12—Advertising or display means not otherwise provided for using special optical effects
    • G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F2013/05—Constructional details indicating exit way or orientation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Marketing (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Overhead Projectors And Projection Screens (AREA)
CA157,107A 1972-06-07 1972-11-21 Moire fringe optical display and projection equipment Expired CA974761A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB2645272A GB1449601A (en) 1972-06-07 1972-06-07 Methods and equipment for producing motivated displays
GB3186272A GB1432144A (en) 1972-07-07 1972-07-07 Optical projection systems
GB3351372A GB1444223A (en) 1972-07-18 1972-07-18 Equipment for prodicing motivated optical images or displays

Publications (1)

Publication Number Publication Date
CA974761A true CA974761A (en) 1975-09-23

Family

ID=27258525

Family Applications (1)

Application Number Title Priority Date Filing Date
CA157,107A Expired CA974761A (en) 1972-06-07 1972-11-21 Moire fringe optical display and projection equipment

Country Status (7)

Country Link
US (1) US3836240A (xx)
JP (1) JPS4952652A (xx)
BE (1) BE791673A (xx)
CA (1) CA974761A (xx)
ES (1) ES408833A1 (xx)
IT (1) IT982414B (xx)
NL (1) NL7215778A (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT344003B (de) * 1975-04-12 1978-06-26 Preibisch & Uhlig Ohg Titelgerat fur filmamateure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2374371A (en) * 1945-04-24 Apparatus for the animating of
US2876570A (en) * 1954-12-20 1959-03-10 Swarbrick John Display sign with rotary pattern movement
US3683419A (en) * 1970-09-11 1972-08-15 Robert B Lewis Moire pattern garment
JPS5010485A (xx) * 1973-06-06 1975-02-03

Also Published As

Publication number Publication date
BE791673A (fr) 1973-03-16
JPS4952652A (xx) 1974-05-22
NL7215778A (xx) 1973-12-11
US3836240A (en) 1974-09-17
ES408833A1 (es) 1976-03-16
IT982414B (it) 1974-10-21

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