TWI320848B - - Google Patents
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- Publication number
- TWI320848B TWI320848B TW96115214A TW96115214A TWI320848B TW I320848 B TWI320848 B TW I320848B TW 96115214 A TW96115214 A TW 96115214A TW 96115214 A TW96115214 A TW 96115214A TW I320848 B TWI320848 B TW I320848B
- Authority
- TW
- Taiwan
- Prior art keywords
- laser
- read head
- objective lens
- scale
- beam splitter
- Prior art date
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Measurement Of Optical Distance (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW96115214A TW200842312A (en) | 2007-04-27 | 2007-04-27 | Duolaser focusing read head optical ruler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW96115214A TW200842312A (en) | 2007-04-27 | 2007-04-27 | Duolaser focusing read head optical ruler |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200842312A TW200842312A (en) | 2008-11-01 |
TWI320848B true TWI320848B (fr) | 2010-02-21 |
Family
ID=44821941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW96115214A TW200842312A (en) | 2007-04-27 | 2007-04-27 | Duolaser focusing read head optical ruler |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW200842312A (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI498604B (zh) * | 2013-01-04 | 2015-09-01 | Univ Feng Chia | Optical encoder and its correction method |
CN104457589B (zh) * | 2014-12-26 | 2016-05-04 | 苏州博众精工科技有限公司 | 一种用于检测电子产品高度差的自动化设备 |
CN108627097B (zh) * | 2018-05-09 | 2020-05-08 | 广东工业大学 | 一种绝对式光栅尺 |
CN113124760B (zh) * | 2019-12-30 | 2022-08-02 | 广东万濠精密仪器股份有限公司 | 反射式光栅尺 |
-
2007
- 2007-04-27 TW TW96115214A patent/TW200842312A/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
TW200842312A (en) | 2008-11-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |