Precision laboratory experiments: such as optical filtering tests, weak light interference experiments. Low power avoids sample damage, and short wavelengths meet specific optical testing requirements.

Small fluorescence detection equipment: used in portable biosensors and POCT (Point-of-Care Testing) devices to excite fluorescent markers and detect signals.

Miniature projection light source: 405nm laser can be used as the light source for miniature projection equipment. Low power is suitable for portable scenarios, and Gaussian light spots ensure projection clarity.