Academic institution SPIE ~
They have a series of periodicals and conferences ~ ~
All papers published in Journal of SPIE are conference papers.
SPIE's meeting documents are usually retrieved by EI, but you still need to confirm them yourself.
A brief introduction is as follows:
lawsuit
SPIE Essays contains the latest research and technological innovation. These original research papers published in SPIE conference are one of the most cited references in patent literature, and they can be obtained within two to four weeks after each conference.
magazine
SPIE journals publish peer-reviewed articles on applied research in optics and photonics. SPIE journals include topics such as optical engineering, electronic imaging, biomedical optics, microlithography, remote sensing and nanophotonics, which can be obtained by subscription. SPIE also publishes open access articles on important emerging technology fields in SPIE Express and SPIE Review.
book
SPIE e-books bring valuable books from SPIE Publishing House-monographs and reference works, field guides and tutorial texts-to researchers' desktops. At least 15 new titles and versions are added to the collection every year.
subscribe
SPIE digital library can be obtained through an annual fee. Personal subscription saves a lot more than single paper purchase, and SPIE members save more. Libraries can license complete SPIE digital libraries and e-book collections.