JP2020190569A5 - Telecentric optics - Google Patents
Telecentric optics Download PDFInfo
- Publication number
- JP2020190569A5 JP2020190569A5 JP2020135553A JP2020135553A JP2020190569A5 JP 2020190569 A5 JP2020190569 A5 JP 2020190569A5 JP 2020135553 A JP2020135553 A JP 2020135553A JP 2020135553 A JP2020135553 A JP 2020135553A JP 2020190569 A5 JP2020190569 A5 JP 2020190569A5
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- JP
- Japan
- Prior art keywords
- optical element
- telecentric optics
- telecentric
- optical
- optics
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- 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.)
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- 230000003287 optical Effects 0.000 claims 11
Claims (1)
前記第2光学要素は、前記第1光学要素との間に間隔を開けて配置され、 The second optical element is arranged at a distance from the first optical element.
前記第1光学要素の前記第2光学要素側の面、および前記第2光学要素の前記第1光学要素側の面の少なくとも一方にアパーチャが設けられていることを特徴とするテレセントリック光学系。 A telecentric optical system characterized in that an aperture is provided on at least one of a surface of the first optical element on the side of the second optical element and a surface of the second optical element on the side of the first optical element.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020135553A JP6903392B2 (en) | 2015-09-14 | 2020-08-11 | Telecentric optics |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015180529A JP6883939B2 (en) | 2015-09-14 | 2015-09-14 | Photoelectric encoder |
JP2020135553A JP6903392B2 (en) | 2015-09-14 | 2020-08-11 | Telecentric optics |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015180529A Division JP6883939B2 (en) | 2015-09-14 | 2015-09-14 | Photoelectric encoder |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2020190569A JP2020190569A (en) | 2020-11-26 |
JP2020190569A5 true JP2020190569A5 (en) | 2021-04-01 |
JP6903392B2 JP6903392B2 (en) | 2021-07-14 |
Family
ID=73453645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020135553A Active JP6903392B2 (en) | 2015-09-14 | 2020-08-11 | Telecentric optics |
Country Status (1)
Country | Link |
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JP (1) | JP6903392B2 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4385234A (en) * | 1980-11-25 | 1983-05-24 | Bei Electronics, Inc. | Optical systems for optical encoders |
JPS62232611A (en) * | 1986-04-02 | 1987-10-13 | Dainippon Screen Mfg Co Ltd | Laser exposing device for image scanning and recording device |
JP4713908B2 (en) * | 2005-03-17 | 2011-06-29 | 株式会社ミツトヨ | Lens system and photoelectric encoder using the same |
EP2287639A3 (en) * | 2009-08-17 | 2012-05-30 | Sony Corporation | Lens array imaging optics for a line sensor module |
JP5981836B2 (en) * | 2011-12-02 | 2016-08-31 | 京セラ株式会社 | Erecting equal-magnification lens array unit, image reading apparatus, and image forming apparatus |
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2020
- 2020-08-11 JP JP2020135553A patent/JP6903392B2/en active Active
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