lˈaɪ tˈuː mˈoʊ ˈoʊ fˈoːɹ ˌɛlˌɛmˈoʊ hæv ˈɔːlsoʊ bˌɪn jˈuːzd wɪð hˈɑːloʊ ɡlˈæs mˈaɪkɹoʊsfˌɪɹz ˌeɪtʃdʒˌiːˌɛmˈɛs tə mˌeɪk lˈoʊ pɚmɪtˈɪvᵻɾi kəmpˈɑːzɪt wˌɪtʃ hˈæzbiːn jˈuːzd tə mˌeɪk lˈɛnzᵻz fɔːɹ lˈɛnz æntˈɛnəz.
Li2MoO4 (LMO) have also been used with hollow glass microspheres (HGMS) to make low permittivity composite which has been used to make lenses for lens antennas.