An illumination device (100, 200) comprising: a plurality of light-emitting elements (LEEs) arranged orthogonally to a forward direction, wherein the illumination device extends orthogonally to the forward direction; and either a light guide (130; 230) extending in the forward direction from a first end of the light guide to a second end of the light guide, the light guide being positioned to receive at the first end light emitted by the LEEs and configured to guide the received light to the second end; and an optical extractor (140; 240) optically coupled to the light guide at the second end to receive the guided light, the optical extractor comprising a redirecting surface (143; 243) to reflect a first portion of the guided light, wherein the reflected light is output by the optical extractor to the ambient environment in a backward angular range (145'; 145"), and wherein the redirecting surface has one or more transmissive portions to transmit a second portion of the guided light in the forward direction; or one or more optical couplers extending in the forward direction, the optical couplers positioned to receive light emitted by the LEEs and configured to collimate the received light such that the collimated light provided by the one or more optical couplers has a first divergence; an optical extractor spaced apart from the one or more optical couplers at a first distance, the optical extractor comprising a redirecting surface (143; 243; 443) to reflect a first portion of the collimated light to the ambient environment in a backward angular range, wherein the redirecting surface has one or more transmissive portions to transmit a second portion of the collimated light in the forward direction, the illumination device further comprising: one or more optical elements (144; 144i; 144j; 344; 444i; 444j; 4455i; 4455j) optically coupled to the one or more transmissive portions of the redirecting surface, the one or more optical elements to modify the light transmitted through the transmissive portions and to output the modified light to the ambient environment in a forward angular range, wherein the one or more optical elements are disposed adjacent the one or more transmissive portions (1435-i, 1435-j; 4455-i, 4455-j) of the redirecting surface and wherein the corresponding one or more optical elements (144; 144-i, 144-j; 444-i, 444-j) are bonded to the transmissive portions of the redirecting surface. a plurality of light-emitting elements (LEEs) arranged orthogonally to a forward direction, wherein the illumination device extends orthogonally to the forward direction; and either a light guide (130; 230) extending in the forward direction from a first end of the light guide to a second end of the light guide, the light guide being positioned to receive at the first end light emitted by the LEEs and configured to guide the received light to the second end; and an optical extractor (140; 240) optically coupled to the light guide at the second end to receive the guided light, the optical extractor comprising a redirecting surface (143; 243) to reflect a first portion of the guided light, wherein the reflected light is output by the optical extractor to the ambient environment in a backward angular range (145'; 145"), and wherein the redirecting surface has one or more transmissive portions to transmit a second portion of the guided light in the forward direction; or one or more optical couplers extending in the forward direction, the optical couplers positioned to receive light emitted by the LEEs and configured to collimate the received light such that the collimated light provided by the one or more optical couplers has a first divergence; an optical extractor spaced apart from the one or more optical couplers at a first distance, the optical extractor comprising a redirecting surface (143; 243; 443) to reflect a first portion of the collimated light to the ambient environment in a backward angular range, wherein the redirecting surface has one or more transmissive portions to transmit a second portion of the collimated light in the forward direction, the illumination device further comprising: one or more optical elements (144; 144i; 144j; 344; 444i; 444j; 4455i; 4455j) optically coupled to the one or more transmissive portions of the redirecting surface, the one or more optical elements to modify the light transmitted through the transmissive portions and to output the modified light to the ambient environment in a forward angular range, wherein the one or more optical elements are disposed adjacent the one or more transmissive portions (1435-i, 1435-j; 4455-i, 4455-j) of the redirecting surface and wherein the corresponding one or more optical elements (144; 144-i, 144-j; 444-i, 444-j) are bonded to the transmissive portions of the redirecting surface. one or more optical elements (144; 144i; 144j; 344; 444i; 444j; 4455i; 4455j) optically coupled to the one or more transmissive portions of the redirecting surface, the one or more optical elements to modify the light transmitted through the transmissive portions and to output the modified light to the ambient environment in a forward angular range, wherein the one or more optical elements are disposed adjacent the one or more transmissive portions (1435-i, 1435-j; 4455-i, 4455-j) of the redirecting surface and wherein the corresponding one or more optical elements (144; 144-i, 144-j; 444-i, 444-j) are bonded to the transmissive portions of the redirecting surface.