BR7705679A - IMPROVEMENTS IN AN OPTICAL TYPE PROJECTOR TO PROJECT A LIGHT CONE FROM ILLUMINATED MICRO FILM, IN A DOUBLE FUNCTION OPTICAL ELEMENT AND IN AN OPTICAL DEVICE - Google Patents

IMPROVEMENTS IN AN OPTICAL TYPE PROJECTOR TO PROJECT A LIGHT CONE FROM ILLUMINATED MICRO FILM, IN A DOUBLE FUNCTION OPTICAL ELEMENT AND IN AN OPTICAL DEVICE

Info

Publication number: BR7705679A
Authority: BR; Brazil
Prior art keywords: optical; project; light cone; double function; type projector
Prior art date: 1976-09-13

Application number

BR7705679A

Other languages

Portuguese (pt)

Inventor

G Yevick

Original Assignee

Izon 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.)

1976-09-13

Filing date

1977-08-25

Publication date

1978-06-27

1977-08-25 Application filed by Izon Corp filed Critical Izon Corp

1978-06-27 Publication of BR7705679A publication Critical patent/BR7705679A/en

Links

230000003287 optical effect Effects 0.000 title 3

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
- G03B21/10—Projectors with built-in or built-on screen
- G03B21/11—Projectors with built-in or built-on screen for microfilm reading

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Projection Apparatus (AREA)
Optical Elements Other Than Lenses (AREA)
Overhead Projectors And Projection Screens (AREA)
Facsimile Scanning Arrangements (AREA)

BR7705679A 1976-09-13 1977-08-25 IMPROVEMENTS IN AN OPTICAL TYPE PROJECTOR TO PROJECT A LIGHT CONE FROM ILLUMINATED MICRO FILM, IN A DOUBLE FUNCTION OPTICAL ELEMENT AND IN AN OPTICAL DEVICE BR7705679A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US71785876A	1976-09-13	1976-09-13

Publications (1)

Publication Number	Publication Date
BR7705679A true BR7705679A (en)	1978-06-27

Family

ID=24883776

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR7705679A BR7705679A (en)	1976-09-13	1977-08-25	IMPROVEMENTS IN AN OPTICAL TYPE PROJECTOR TO PROJECT A LIGHT CONE FROM ILLUMINATED MICRO FILM, IN A DOUBLE FUNCTION OPTICAL ELEMENT AND IN AN OPTICAL DEVICE

Country Status (13)

Country	Link
JP (1)	JPS5341227A (en)
AT (1)	AT368640B (en)
BE (1)	BE858178A (en)
BR (1)	BR7705679A (en)
CA (1)	CA1103492A (en)
DE (1)	DE2738658C3 (en)
ES (1)	ES461877A1 (en)
FR (1)	FR2413686A1 (en)
GB (1)	GB1590679A (en)
HK (1)	HK41884A (en)
IN (1)	IN149132B (en)
MX (1)	MX148985A (en)
NL (1)	NL7709456A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS54163927U (en) *	1978-05-10	1979-11-16
DE2906477C3 (en)	1979-02-20	1995-02-09	Rohrmoser Alois Skifabrik	Ski brake
GB8804402D0 (en) *	1988-02-25	1988-03-23	Emi Plc Thorn	Display device
US8562145B2 (en)	2011-06-22	2013-10-22	3M Innovative Properties Company	Display system and method for projection onto non-planar surfaces

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3711188A (en) *	1970-06-10	1973-01-16	Visidyne Inc	Compact optical display system
US3692399A (en) *	1970-06-23	1972-09-19	Stewart Filmscreen Corp	Microfilm viewer
US3782805A (en) *	1972-11-30	1974-01-01	Qantix Corp	Front projection screen made from a transparent material
US3846012A (en) *	1973-11-14	1974-11-05	Qantix Corp	Transparent front projection screen having concave ridges thereon
JPS5345141B2 (en) *	1973-12-18	1978-12-04
US3941467A (en) *	1974-10-29	1976-03-02	Kaptron, Inc.	Optical projector/reader

1977
- 1977-08-24 AT AT0614277A patent/AT368640B/en not_active IP Right Cessation
- 1977-08-24 GB GB35562/77A patent/GB1590679A/en not_active Expired
- 1977-08-24 IN IN1321/CAL/77A patent/IN149132B/en unknown
- 1977-08-25 BR BR7705679A patent/BR7705679A/en unknown
- 1977-08-25 ES ES461877A patent/ES461877A1/en not_active Expired
- 1977-08-25 CA CA285,443A patent/CA1103492A/en not_active Expired
- 1977-08-25 JP JP10218277A patent/JPS5341227A/en active Granted
- 1977-08-25 MX MX170358A patent/MX148985A/en unknown
- 1977-08-26 NL NL7709456A patent/NL7709456A/en not_active Application Discontinuation
- 1977-08-26 DE DE2738658A patent/DE2738658C3/en not_active Expired
- 1977-08-26 BE BE6046124A patent/BE858178A/en not_active IP Right Cessation
- 1977-08-26 FR FR7726064A patent/FR2413686A1/en active Granted
1984
- 1984-05-10 HK HK418/84A patent/HK41884A/en unknown

Also Published As

Publication number	Publication date
JPS6210418B2 (en)	1987-03-06
DE2738658B2 (en)	1979-10-11
GB1590679A (en)	1981-06-03
JPS5341227A (en)	1978-04-14
CA1103492A (en)	1981-06-23
FR2413686A1 (en)	1979-07-27
NL7709456A (en)	1978-03-15
DE2738658A1 (en)	1978-03-16
IN149132B (en)	1981-09-19
BE858178A (en)	1977-12-16
ES461877A1 (en)	1978-12-01
DE2738658C3 (en)	1980-08-07
ATA614277A (en)	1982-02-15
HK41884A (en)	1984-05-18
AT368640B (en)	1982-10-25
MX148985A (en)	1983-08-05
FR2413686B1 (en)	1984-05-18

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