Compact camera module testing equipment with a conversion lens

Jui-Wen Pan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Modified testing equipment for adjusting the back focal length of a compact camera module (CCM) is proposed. The advantages of this modified testing equipment which includes a conversion lens are that it saves on testing space, offers a smaller sized testing chart, as well as high speed chart changing, and variable object distances. The modified testing equipment can produce a test chart of 38.32 mm compared to an equivalent testing chart of 5000 mm with the conventional testing equipment. At the regular object distance of 2000 mm, both total track and testing chart size for the modified test equipment were 8.3% that of the conventional testing equipment. By using this testing equipment, the testing space can be shrunk significantly.

Original languageEnglish
Pages (from-to)5303-5312
Number of pages10
JournalOptics Express
Issue number5
StatePublished - 27 Feb 2012

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