A holographic projector comprising: a light source; a spatial light modulator arranged to receive and represent a computer-generated hologram and spatially modulate light received from the light source to form a holographic reconstruction in accordance with the computer-generated hologram; a light receiving member arranged to receive spatially modulated light along an optical axis from the spatial light modulator, wherein the holographic reconstruction is formed on the light receiving member and the light receiving member is configured to diffuse light in a first direction by a first amount and to diffuse light in a second direction perpendicular to the first direction by a second amount greater than the first amount; and a driver coupled to the light receiving member and being configured in use to move the light receiving member in a plane, wherein in use the driver is configured to move the light receiving member while maintaining an orientation of the light receiving member relative to the spatial light modulator substantially constant, wherein the light receiving member) is configured to diffuse light incident on it and wherein an optical element is configured to receive light from the light receiving member, wherein a dimension of the optical element in a third direction is smaller than a dimension of the optical element in a fourth direction perpendicular to the third direction, wherein the first direction is generally parallel to the third direction so that the cross-sectional shape of a light cone received by the optical element, from the light receiving member, is matched to a cross-sectional shape of the optical element, and wherein in use movement of the light receiving member scans a scan area on the light receiving member with the holographic reconstruction, said scan area being larger than the area of the holographic reconstruction on the light receiving member. a light source; a spatial light modulator arranged to receive and represent a computer-generated hologram and spatially modulate light received from the light source to form a holographic reconstruction in accordance with the computer-generated hologram; a light receiving member arranged to receive spatially modulated light along an optical axis from the spatial light modulator, wherein the holographic reconstruction is formed on the light receiving member and the light receiving member is configured to diffuse light in a first direction by a first amount and to diffuse light in a second direction perpendicular to the first direction by a second amount greater than the first amount; and a driver coupled to the light receiving member and being configured in use to move the light receiving member in a plane, wherein in use the driver is configured to move the light receiving member while maintaining an orientation of the light receiving member relative to the spatial light modulator substantially constant, wherein the light receiving member) is configured to diffuse light incident on it and wherein an optical element is configured to receive light from the light receiving member, wherein a dimension of the optical element in a third direction is smaller than a dimension of the optical element in a fourth direction perpendicular to the third direction, wherein the first direction is generally parallel to the third direction so that the cross-sectional shape of a light cone received by the optical element, from the light receiving member, is matched to a cross-sectional shape of the optical element, and wherein in use movement of the light receiving member scans a scan area on the light receiving member with the holographic reconstruction, said scan area being larger than the area of the holographic reconstruction on the light receiving member.