A device (1; 1 1, 1 2) for controlling transmission of radiation, comprising: - a first substrate (12 1; 12 1 ') comprising a first conductive layer (14 1 '); - a second substrate (12 2; 12 2 ') comprising a second conductive layer (14 2 '); - an active layer positioned between the first conductive layer (14 1 ') and the second conductive layer (14 2 ') for controlling the transmission of the radiation by altering its light transmissivity dependent on a voltage applied to the first conductive layer (14 1 ') and the second conductive layer (14 2 '); - a first contact (50 1) for providing a first electrical connection to the first conductive layer (14 1 '); - a first portion (60 1) of an adhesive or a solder for attaching a first proximal end (52 1) of the first contact (50 1) to the first conductive layer (14 1 '); - a second contact (50 2) for providing a second electrical connection to the second conductive layer (14 2 '); and - a second portion (60 2) of the adhesive or solder for attaching a second proximal end (52 2) of the second contact (50 2) to the first conductive layer (14 1 ') or second conductive layer (14 2 '); wherein: - the second contact (50 2) is accommodated in a first space (40 1) freed by the first substrate (12 1; 12 1 '); and - the first contact (50 1) is accommodated in a second space (40 2) freed by the second substrate (12 2; 12 2 '); and characterized in that - the first contact (50 1) is situated on a first side of the device (1; 1 1, 1 2), and the second contact (50 2) is situated on a second side of the device (1; 1 1, 1 2), being opposite to the first side; and - a thickness of the first contact (50 1) is less than a thickness of the second substrate (12 2; 12 2 ') and a thickness of the second contact (50 2) is less than the thickness of the first substrate (12 1; 12 1 '); and - the first contact (50 1) is situated on a first corner of the device (1; 1 1, 1 2) and the second contact (50 2) is situated on a second corner of the device (1; 1 1, 1 2), being opposite to the first corner; or the first contact (50 1) and the second contact (50 2) are situated on one corner of the device (1; 1 1, 1 2). - a first substrate (12 1; 12 1 ') comprising a first conductive layer (14 1 '); - a second substrate (12 2; 12 2 ') comprising a second conductive layer (14 2 '); - an active layer positioned between the first conductive layer (14 1 ') and the second conductive layer (14 2 ') for controlling the transmission of the radiation by altering its light transmissivity dependent on a voltage applied to the first conductive layer (14 1 ') and the second conductive layer (14 2 '); - a first contact (50 1) for providing a first electrical connection to the first conductive layer (14 1 '); - a first portion (60 1) of an adhesive or a solder for attaching a first proximal end (52 1) of the first contact (50 1) to the first conductive layer (14 1 '); - a second contact (50 2) for providing a second electrical connection to the second conductive layer (14 2 '); and - a second portion (60 2) of the adhesive or solder for attaching a second proximal end (52 2) of the second contact (50 2) to the first conductive layer (14 1 ') or second conductive layer (14 2 '); wherein: - the second contact (50 2) is accommodated in a first space (40 1) freed by the first substrate (12 1; 12 1 '); and - the first contact (50 1) is accommodated in a second space (40 2) freed by the second substrate (12 2; 12 2 '); and characterized in that - the first contact (50 1) is situated on a first side of the device (1; 1 1, 1 2), and the second contact (50 2) is situated on a second side of the device (1; 1 1, 1 2), being opposite to the first side; and - a thickness of the first contact (50 1) is less than a thickness of the second substrate (12 2; 12 2 ') and a thickness of the second contact (50 2) is less than the thickness of the first substrate (12 1; 12 1 '); and - the first contact (50 1) is situated on a first corner of the device (1; 1 1, 1 2) and the second contact (50 2) is situated on a second corner of the device (1; 1 1, 1 2), being opposite to the first corner; or the first contact (50 1) and the second contact (50 2) are situated on one corner of the device (1; 1 1, 1 2). - the second contact (50 2) is accommodated in a first space (40 1) freed by the first substrate (12 1; 12 1 '); and - the first contact (50 1) is accommodated in a second space (40 2) freed by the second substrate (12 2; 12 2 '); and characterized in that - the first contact (50 1) is situated on a first side of the device (1; 1 1, 1 2), and the second contact (50 2) is situated on a second side of the device (1; 1 1, 1 2), being opposite to the first side; and - a thickness of the first contact (50 1) is less than a thickness of the second substrate (12 2; 12 2 ') and a thickness of the second contact (50 2) is less than the thickness of the first substrate (12 1; 12 1 '); and - the first contact (50 1) is situated on a first corner of the device (1; 1 1, 1 2) and the second contact (50 2) is situated on a second corner of the device (1; 1 1, 1 2), being opposite to the first corner; or the first contact (50 1) and the second contact (50 2) are situated on one corner of the device (1; 1 1, 1 2).