[go: up one dir, main page]

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
CA1069215A CA314,704A CA314704A CA1069215A CA 1069215 A CA1069215 A CA 1069215A CA 314704 A CA314704 A CA 314704A CA 1069215 A CA1069215 A CA 1069215A
Authority
CA
Canada
Prior art keywords
disc
light beam
edge portion
track
mirrors
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
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.)
Filing date
Publication date
Priority claimed from US00299893A external-priority patent/US3829622A/en
Application filed by MCA Discovision Inc filed Critical MCA Discovision Inc
Priority to CA314,704A priority Critical patent/CA1069215A/fr
Application granted granted Critical
Publication of CA1069215A publication Critical patent/CA1069215A/fr
Expired legal-status Critical Current

Links

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)

Similar Documents

Publication Publication Date Title
US3829622A (en) Video disc player with variably biased pneumatic head
US3944727A (en) Video disc player with movable mirror for directing light beam onto reflective disc
US4809247A (en) Video disc head tracking apparatus
US4451913A (en) Video disc read back scanner
US4282598A (en) Video disc read back scanner
US4703467A (en) Video disc read back scanner
US4445209A (en) Dithered focusing systems
US3673412A (en) Radiant energy beam scanning method and apparatus
US4236105A (en) Digital center tracking system
CA1100233A (fr) Faisceau lumineux de balayage de grandeur variable
US3876827A (en) Apparatus for reading a disc-shaped record carrier
KR950010419B1 (ko) 코스 액추에이터 트랙킹 신호 발생 장치
CA1125434A (fr) Machine de fabrication de disques
CA1069215A (fr) Dispositif de lecture a faisceau lumineux pour disque video
US4044378A (en) Optical system for reflective mode video playback apparatus
JPS6143770B2 (fr)
US4414658A (en) Linear tracking arrangement in a photographic disc type information containing system
KR840001862B1 (ko) 비디오 디스크 플레이어
US3952148A (en) Optical video disc playback system with position servo
JPH08506918A (ja) 光走査装置
US5155720A (en) Servo control circuit for image rotator
CA1070834A (fr) Tourne-disque video
JPS60121578A (ja) トラッキング制御装置
JPH0612595B2 (ja) 制御装置
CA1071768A (fr) Trajet de faisceau lumineux pour lecture de disque video

Legal Events

Date Code Title Description
MKEX Expiry