AT323247B - Lichtdurchlässige platte, mit deren hilfe die struktur eines optischen bildes nahezu völlig unsichtbar gemacht werden kann - Google Patents

Lichtdurchlässige platte, mit deren hilfe die struktur eines optischen bildes nahezu völlig unsichtbar gemacht werden kann

Info

Publication number
AT323247B
AT323247B AT607872A AT607872A AT323247B AT 323247 B AT323247 B AT 323247B AT 607872 A AT607872 A AT 607872A AT 607872 A AT607872 A AT 607872A AT 323247 B AT323247 B AT 323247B
Authority
AT
Austria
Prior art keywords
light transmission
optical image
transmission plate
completely invisible
invisible
Prior art date
Application number
AT607872A
Other languages
English (en)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Application granted granted Critical
Publication of AT323247B publication Critical patent/AT323247B/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/72—Modifying the appearance of television pictures by optical filters or diffusing screens

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Holo Graphy (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
AT607872A 1971-07-17 1972-07-14 Lichtdurchlässige platte, mit deren hilfe die struktur eines optischen bildes nahezu völlig unsichtbar gemacht werden kann AT323247B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7109911A NL7109911A (de) 1971-07-17 1971-07-17

Publications (1)

Publication Number Publication Date
AT323247B true AT323247B (de) 1975-06-25

Family

ID=19813636

Family Applications (1)

Application Number Title Priority Date Filing Date
AT607872A AT323247B (de) 1971-07-17 1972-07-14 Lichtdurchlässige platte, mit deren hilfe die struktur eines optischen bildes nahezu völlig unsichtbar gemacht werden kann

Country Status (15)

Country Link
US (1) US3781091A (de)
JP (1) JPS5222247B1 (de)
AR (1) AR195558A1 (de)
AT (1) AT323247B (de)
AU (1) AU467220B2 (de)
BE (1) BE786377A (de)
BR (1) BR7204687D0 (de)
CA (1) CA974386A (de)
DE (1) DE2233402A1 (de)
ES (1) ES404919A1 (de)
FR (1) FR2146306B1 (de)
GB (1) GB1394712A (de)
IT (1) IT972158B (de)
NL (1) NL7109911A (de)
SE (1) SE385537B (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842202A (en) * 1972-11-06 1974-10-15 Levy M & Co Inc Combination of a transmissive diffractive phase-grating and a television picture-tube in operative juxtaposition to each other
JPS5219341A (en) * 1975-08-06 1977-02-14 Toshiba Corp High frequencyheating system
US4034555A (en) * 1975-12-16 1977-07-12 Rosenthal Bruce A Lenticular optical system
JPS56147120A (en) * 1980-04-18 1981-11-14 Victor Co Of Japan Ltd Optical low-pass filter
US4340275A (en) * 1980-06-09 1982-07-20 General Electric Company Rear projection screen with patterned lenticular prismatic structure
JPS57158612A (en) * 1981-03-25 1982-09-30 Canon Inc Optical low pass filter
JPS59122291A (ja) * 1982-12-28 1984-07-14 Sony Corp 投射型テレビジヨン受像機
US4935335A (en) * 1986-01-06 1990-06-19 Dennison Manufacturing Company Multiple imaging
FR2595493A1 (fr) * 1986-03-07 1987-09-11 Thomson Csf Systeme de visualisation a ecran plat
US4804253A (en) * 1986-05-15 1989-02-14 General Electric Company Lenticular filter for display devices
JPH01150140A (ja) * 1987-12-08 1989-06-13 Kiyoshi Kikuchi テレビ画像から油性絵具による写真を製作する方法およびそれに用いるテレビ画像用フィルタ装置
JPH0833527B2 (ja) * 1988-07-18 1996-03-29 キヤノン株式会社 光学的ローパスフィルターを有した撮影系
US5283690A (en) * 1989-04-04 1994-02-01 Sharp Kabushiki Kaisha Optical diffraction grating element
US5337181A (en) * 1992-08-27 1994-08-09 Kelly Shawn L Optical spatial filter
US5706139A (en) * 1995-10-17 1998-01-06 Kelly; Shawn L. High fidelity optical system for electronic imaging
US6369949B1 (en) * 2000-04-12 2002-04-09 Kenneth E. Conley Optically anisotropic micro lens window
US11493773B2 (en) 2021-06-07 2022-11-08 Panamorph, Inc. Near-eye display system

Also Published As

Publication number Publication date
JPS5222247B1 (de) 1977-06-16
ES404919A1 (es) 1976-01-01
IT972158B (it) 1974-05-20
CA974386A (en) 1975-09-16
AU4442372A (en) 1974-01-17
FR2146306B1 (de) 1980-04-04
US3781091A (en) 1973-12-25
DE2233402A1 (de) 1973-01-25
FR2146306A1 (de) 1973-03-02
GB1394712A (en) 1975-05-21
BE786377A (fr) 1973-01-17
NL7109911A (de) 1973-01-19
AR195558A1 (es) 1973-10-23
SE385537B (sv) 1976-07-05
BR7204687D0 (pt) 1973-06-14
AU467220B2 (en) 1975-11-27

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee