KR890015807A - 프레넬스텝의 가공방법 - Google Patents

프레넬스텝의 가공방법

Info

Publication number
KR890015807A
KR890015807A KR1019890004583A KR890004583A KR890015807A KR 890015807 A KR890015807 A KR 890015807A KR 1019890004583 A KR1019890004583 A KR 1019890004583A KR 890004583 A KR890004583 A KR 890004583A KR 890015807 A KR890015807 A KR 890015807A
Authority
KR
South Korea
Prior art keywords
processing method
step processing
fresnel step
fresnel
processing
Prior art date
Application number
KR1019890004583A
Other languages
English (en)
Other versions
KR910010244B1 (ko
Inventor
야스오 오자와
노보루 고지마
아끼라 나가꾸라
세이지 이가라시
바라 고오이찌 사가끼
Original Assignee
가부시기가이샤 고이도세이사꾸쇼
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 JP63085404A external-priority patent/JPH01257504A/ja
Priority claimed from JP63085405A external-priority patent/JP2603098B2/ja
Application filed by 가부시기가이샤 고이도세이사꾸쇼 filed Critical 가부시기가이샤 고이도세이사꾸쇼
Publication of KR890015807A publication Critical patent/KR890015807A/ko
Application granted granted Critical
Publication of KR910010244B1 publication Critical patent/KR910010244B1/ko

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/303752—Process
    • Y10T409/303808—Process including infeeding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Turning (AREA)
KR1019890004583A 1988-04-08 1989-04-07 프레넬스텝의 가공방법 KR910010244B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP88-85404 1988-04-08
JP88-85405 1988-04-08
JP63085404A JPH01257504A (ja) 1988-04-08 1988-04-08 フレネルステップの加工方法
JP63085405A JP2603098B2 (ja) 1988-04-08 1988-04-08 フレネルステップの加工方法

Publications (2)

Publication Number Publication Date
KR890015807A true KR890015807A (ko) 1989-11-25
KR910010244B1 KR910010244B1 (ko) 1991-12-24

Family

ID=26426421

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890004583A KR910010244B1 (ko) 1988-04-08 1989-04-07 프레넬스텝의 가공방법

Country Status (2)

Country Link
US (1) US4969783A (ko)
KR (1) KR910010244B1 (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2700970B2 (ja) * 1991-12-14 1998-01-21 株式会社小糸製作所 車輌用灯具のレンズ及びその金型作製方法
EP1032863A1 (en) * 1997-09-02 2000-09-06 Gil Thieberger Ophthalmic lens synthesized from its specifications
JP2001018108A (ja) * 1999-07-05 2001-01-23 Canon Inc 回折光学格子素子形状の加工方法及び回折光学格子素子形状を成形する金型の加工方法
JP4313686B2 (ja) * 2004-01-29 2009-08-12 富士フイルム株式会社 輪帯光学素子用金型の製造方法
PT2724815E (pt) * 2012-10-29 2014-08-28 Essilor Int Método de usinagem de uma superfície de uma lente ótica
CN109249296B (zh) * 2018-11-06 2023-06-13 西安北方光电科技防务有限公司 小口径角锥棱镜光学加工方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2890627A (en) * 1950-03-04 1959-06-16 Gen Motors Corp Method for making lens mold
US2831394A (en) * 1952-08-22 1958-04-22 Elastic Stop Nut Corp Catadioptric lenses
US3267279A (en) * 1965-04-01 1966-08-16 Elastic Stop Nut Corp Lens and lens assemblies
US3744117A (en) * 1971-09-30 1973-07-10 Amerace Esna Corp Method for making a curved cube-corner reflector
US4198182A (en) * 1975-09-20 1980-04-15 Lucas Industries Limited Method of manufacturing a mould for producing a lamp lens element
US4149304A (en) * 1977-09-12 1979-04-17 Brynjegard Olaf G Method of making rolls for forming radar reflective surfaces
SU688297A1 (ru) * 1978-05-26 1979-09-30 Украинский Государственный Проектно-Технологический И Экспериментальный Институт "Укроргстанкинпром" Способ построчной обработки сложных поверхностей

Also Published As

Publication number Publication date
US4969783A (en) 1990-11-13
KR910010244B1 (ko) 1991-12-24

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