| 摘要 |
An exemplary apparatus for assembling a lens group comprise a lens tray, a plurality of cylindrical holes and a plurality of guiding grooves. The lens tray has a first surface and an inner side surface in each hole. The cylindrical holes are defined in the first surface for receiving a plurality of optical elements therein. The guiding grooves are defined in each inner side surface and exposed at the first surface, each groove communicats with the corresponding hole for allowing air to flow therethrough.
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