JPS57182715A - Optical face scanning method - Google Patents

Optical face scanning method

Info

Publication number
JPS57182715A
JPS57182715A JP6919081A JP6919081A JPS57182715A JP S57182715 A JPS57182715 A JP S57182715A JP 6919081 A JP6919081 A JP 6919081A JP 6919081 A JP6919081 A JP 6919081A JP S57182715 A JPS57182715 A JP S57182715A
Authority
JP
Japan
Prior art keywords
lens
face
rotating
optical axis
rotation axis
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.)
Pending
Application number
JP6919081A
Other languages
Japanese (ja)
Inventor
Tetsuo Sueda
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.)
Canon Inc
Original Assignee
Canon 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
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP6919081A priority Critical patent/JPS57182715A/en
Publication of JPS57182715A publication Critical patent/JPS57182715A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Mechanical Optical Scanning Systems (AREA)

Abstract

PURPOSE:To scan a face to be examined in an approximately circular form with the light which is discharged from the other face of a lens through the inside of this lens, by rotating this lens around the axis parallel with an optical axis other than the optical axis of this lens and making a light incident to one face of this lens. CONSTITUTION:Positions distant from a rotation axis N-N by a length D between an optical axis O-O and the rotation axis N-N are set on a rotating convex lens 13a whiel rotating the rotating lens 13a around the rotation axis N-N, and a laser L is made incident to these positions. Beams projected onto a face 10 to be examined are always placed on the extension of the optical axis O-O rotating around the rotation axis N-N, and scanning is completely synchronized with the rotation of the convex lens 13a. If a rotating concave lens 13b is used, a scanning area is larger though the resolution on the face to be examined is degraded, and the resolution is improved by the conjugate arragnement of the concave lens 13b, a fixed convex lens 18, a virtual image position due to the concave lens, and the scan face.
JP6919081A 1981-05-07 1981-05-07 Optical face scanning method Pending JPS57182715A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6919081A JPS57182715A (en) 1981-05-07 1981-05-07 Optical face scanning method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6919081A JPS57182715A (en) 1981-05-07 1981-05-07 Optical face scanning method

Publications (1)

Publication Number Publication Date
JPS57182715A true JPS57182715A (en) 1982-11-10

Family

ID=13395555

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6919081A Pending JPS57182715A (en) 1981-05-07 1981-05-07 Optical face scanning method

Country Status (1)

Country Link
JP (1) JPS57182715A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59157545A (en) * 1983-02-25 1984-09-06 Matsushita Electric Works Ltd Surface inspecting device
JPS60101528A (en) * 1983-11-09 1985-06-05 Fuji Photo Film Co Ltd Preprinting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59157545A (en) * 1983-02-25 1984-09-06 Matsushita Electric Works Ltd Surface inspecting device
JPH0333220B2 (en) * 1983-02-25 1991-05-16 Matsushita Electric Works Ltd
JPS60101528A (en) * 1983-11-09 1985-06-05 Fuji Photo Film Co Ltd Preprinting device

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