JPS5468647A - Light beam scanner - Google Patents

Light beam scanner

Info

Publication number
JPS5468647A
JPS5468647A JP13588077A JP13588077A JPS5468647A JP S5468647 A JPS5468647 A JP S5468647A JP 13588077 A JP13588077 A JP 13588077A JP 13588077 A JP13588077 A JP 13588077A JP S5468647 A JPS5468647 A JP S5468647A
Authority
JP
Japan
Prior art keywords
divergent
light
wave
focusing
lenses
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.)
Granted
Application number
JP13588077A
Other languages
Japanese (ja)
Other versions
JPS6127724B2 (en
Inventor
Yuzo Ono
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP13588077A priority Critical patent/JPS5468647A/en
Publication of JPS5468647A publication Critical patent/JPS5468647A/en
Publication of JPS6127724B2 publication Critical patent/JPS6127724B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Mechanical Optical Scanning Systems (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Holo Graphy (AREA)

Abstract

PURPOSE: To form a scanning light pattern having corssability with one read beam by using the hologram recording by the object and reference light of the condensing or divergent wave of focusing or divergent angles of different two orthogonal directions.
CONSTITUTION: The holograms of a circular phase and hyperbola type phase is recorded on recording media 5, 5' according to the rotation of the surrounding of the optical axes of lenses 3, 4 by the interference of the focusing wave of the object light 7 having been converted through cylindrical lenses 3, 4 of different focal lengths whose focusing directions are in mutually perpendicularly intersecting directions and interferable reference light 6, 6'. If the media 5, 5' having been recorded with these holograms are photographed with one read beam and the lenses 3, 4 are rotated about the optical axes, then the light beam scanning having crossability is accomplished without using plural read beams. The similar results may also be obtained by using the object light of the divergent waves of different divergent angles or using the hologram recording using the object light alternately becoming divergent wave and condensing wave in two orthogonal directions.
COPYRIGHT: (C)1979,JPO&Japio
JP13588077A 1977-11-11 1977-11-11 Light beam scanner Granted JPS5468647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13588077A JPS5468647A (en) 1977-11-11 1977-11-11 Light beam scanner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13588077A JPS5468647A (en) 1977-11-11 1977-11-11 Light beam scanner

Publications (2)

Publication Number Publication Date
JPS5468647A true JPS5468647A (en) 1979-06-01
JPS6127724B2 JPS6127724B2 (en) 1986-06-26

Family

ID=15161923

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13588077A Granted JPS5468647A (en) 1977-11-11 1977-11-11 Light beam scanner

Country Status (1)

Country Link
JP (1) JPS5468647A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5879207A (en) * 1981-11-06 1983-05-13 Pioneer Electronic Corp Optical pickup device
US4639071A (en) * 1980-06-06 1987-01-27 Fujitsu Limited Light scanning apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03102321U (en) * 1990-02-05 1991-10-24

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4639071A (en) * 1980-06-06 1987-01-27 Fujitsu Limited Light scanning apparatus
JPS5879207A (en) * 1981-11-06 1983-05-13 Pioneer Electronic Corp Optical pickup device

Also Published As

Publication number Publication date
JPS6127724B2 (en) 1986-06-26

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