CA1069215A - Dispositif de lecture a faisceau lumineux pour disque video - Google Patents

Dispositif de lecture a faisceau lumineux pour disque video

Info

Publication number: CA1069215A
Authority: CA; Canada
Prior art keywords: disc; light beam; edge portion; track; mirrors
Prior art date: 1972-10-24
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

CA314,704A

Other languages

English (en)

Inventor

James E. Elliott

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.)

Discovision Associates

Original Assignee

MCA Discovision Inc

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.)

1972-10-24

Filing date

1978-10-30

Publication date

1980-01-01

1972-10-24 Priority claimed from US00299893A external-priority patent/US3829622A/en

1978-10-30 Application filed by MCA Discovision Inc filed Critical MCA Discovision Inc

1978-10-30 Priority to CA314,704A priority Critical patent/CA1069215A/fr

1980-01-01 Application granted granted Critical

1980-01-01 Publication of CA1069215A publication Critical patent/CA1069215A/fr

Status Expired legal-status Critical Current

Links

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238000010894 electron beam technology Methods 0.000 description 1
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239000004416 thermosoftening plastic Substances 0.000 description 1
230000004304 visual acuity Effects 0.000 description 1

Landscapes

Optical Recording Or Reproduction (AREA)

CA314,704A 1972-10-24 1978-10-30 Dispositif de lecture a faisceau lumineux pour disque video Expired CA1069215A (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA314,704A CA1069215A (fr)	1972-10-24	1978-10-30	Dispositif de lecture a faisceau lumineux pour disque video

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US00299893A US3829622A (en)	1972-10-24	1972-10-24	Video disc player with variably biased pneumatic head
CA314,704A CA1069215A (fr)	1972-10-24	1978-10-30	Dispositif de lecture a faisceau lumineux pour disque video

Publications (1)

Publication Number	Publication Date
CA1069215A true CA1069215A (fr)	1980-01-01

Family

ID=25668808

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA314,704A Expired CA1069215A (fr)	1972-10-24	1978-10-30	Dispositif de lecture a faisceau lumineux pour disque video

Country Status (1)

Country	Link
CA (1)	CA1069215A (fr)

1978
- 1978-10-30 CA CA314,704A patent/CA1069215A/fr not_active Expired

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Legal Events

Date	Code	Title	Description
1997-01-01	MKEX	Expiry