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Poka-yoke mini pop-up spectroscopes.

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Title: Poka-yoke mini pop-up spectroscopes.
Authors: Chu, Ching-Chi1 (AUTHOR) ccchu@phy.ncu.edu.tw
Source: Physics Teacher. Apr2026, Vol. 64 Issue 4, p244-244. 1p.
Subjects: Spectroscope, Diffraction gratings, Color blindness, Teaching aids, LED lighting
Abstract: The article focuses on practical improvements to a previously published portable pop-up spectroscope designed for classroom use. To prevent assembly errors caused by misorienting the symmetrical square diffraction grating, the author introduced a "poka-yoke" (mistake-proofing) modification by replacing it with an asymmetric rectangular grating, ensuring correct orientation. This change has eliminated grating-orientation errors in over 4,000 student uses and reduced material costs to about US$1 per unit with a 5-minute assembly time. The improved design enhances portability and shifts instructional focus from troubleshooting to experimental investigations, such as simulating protanopia (red–green color blindness) using RGB LED-illuminated Ishihara plates. [Extracted from the article]
Copyright of Physics Teacher is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
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DbLabel: Engineering Source
An: 192563315
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Poka-yoke mini pop-up spectroscopes.
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  Data: <searchLink fieldCode="AR" term="%22Chu%2C+Ching-Chi%22">Chu, Ching-Chi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ccchu@phy.ncu.edu.tw</i>
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  Data: <searchLink fieldCode="JN" term="%22Physics+Teacher%22">Physics Teacher</searchLink>. Apr2026, Vol. 64 Issue 4, p244-244. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Spectroscope%22">Spectroscope</searchLink><br /><searchLink fieldCode="DE" term="%22Diffraction+gratings%22">Diffraction gratings</searchLink><br /><searchLink fieldCode="DE" term="%22Color+blindness%22">Color blindness</searchLink><br /><searchLink fieldCode="DE" term="%22Teaching+aids%22">Teaching aids</searchLink><br /><searchLink fieldCode="DE" term="%22LED+lighting%22">LED lighting</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: The article focuses on practical improvements to a previously published portable pop-up spectroscope designed for classroom use. To prevent assembly errors caused by misorienting the symmetrical square diffraction grating, the author introduced a "poka-yoke" (mistake-proofing) modification by replacing it with an asymmetric rectangular grating, ensuring correct orientation. This change has eliminated grating-orientation errors in over 4,000 student uses and reduced material costs to about US$1 per unit with a 5-minute assembly time. The improved design enhances portability and shifts instructional focus from troubleshooting to experimental investigations, such as simulating protanopia (red–green color blindness) using RGB LED-illuminated Ishihara plates. [Extracted from the article]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Physics Teacher is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=192563315
RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1119/5.0310983
    Languages:
      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: 244
    Subjects:
      – SubjectFull: Spectroscope
        Type: general
      – SubjectFull: Diffraction gratings
        Type: general
      – SubjectFull: Color blindness
        Type: general
      – SubjectFull: Teaching aids
        Type: general
      – SubjectFull: LED lighting
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      – TitleFull: Poka-yoke mini pop-up spectroscopes.
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            – D: 01
              M: 04
              Text: Apr2026
              Type: published
              Y: 2026
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