JPH0216257Y2 - - Google Patents

Info

Publication number
JPH0216257Y2
JPH0216257Y2 JP1988117364U JP11736488U JPH0216257Y2 JP H0216257 Y2 JPH0216257 Y2 JP H0216257Y2 JP 1988117364 U JP1988117364 U JP 1988117364U JP 11736488 U JP11736488 U JP 11736488U JP H0216257 Y2 JPH0216257 Y2 JP H0216257Y2
Authority
JP
Japan
Prior art keywords
lens
hologram
pinhole
light
distance
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
JP1988117364U
Other languages
English (en)
Japanese (ja)
Other versions
JPH01117709U (en]
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 filed Critical
Priority to JP1988117364U priority Critical patent/JPH0216257Y2/ja
Publication of JPH01117709U publication Critical patent/JPH01117709U/ja
Application granted granted Critical
Publication of JPH0216257Y2 publication Critical patent/JPH0216257Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Measurement Of Optical Distance (AREA)
JP1988117364U 1988-09-08 1988-09-08 Expired JPH0216257Y2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988117364U JPH0216257Y2 (en]) 1988-09-08 1988-09-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988117364U JPH0216257Y2 (en]) 1988-09-08 1988-09-08

Publications (2)

Publication Number Publication Date
JPH01117709U JPH01117709U (en]) 1989-08-09
JPH0216257Y2 true JPH0216257Y2 (en]) 1990-05-02

Family

ID=31360761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988117364U Expired JPH0216257Y2 (en]) 1988-09-08 1988-09-08

Country Status (1)

Country Link
JP (1) JPH0216257Y2 (en])

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002228818A (ja) * 2001-02-05 2002-08-14 Taiyo Yuden Co Ltd レーザー加工用回折光学素子、レーザー加工装置及びレーザー加工方法
JP2020131274A (ja) * 2019-02-25 2020-08-31 パナソニックＩｐマネジメント株式会社 レーザ加工方法およびレーザ加工装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4952655A (en]) * 1972-09-18 1974-05-22
JPS5222547A (en) * 1975-08-14 1977-02-19 Mitsubishi Electric Corp Electron beam device
JPS55108625A (en) * 1979-02-14 1980-08-21 Toshiba Corp Light deflecting device

Also Published As

Publication number Publication date
JPH01117709U (en]) 1989-08-09

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