Abstract: The present invention simplifies the system of power lines from the power source of a balloon-type illumination device to the inside of the balloon. The balloon-type illumination device (1) is provided with: a balloon (2); a discharge lamp (3) provided within the balloon (2); a blower (4) that is provided within the balloon (2) and inflates the balloon (2); a ballast (5) that performs stabilized power supply to the discharge lamp (3) and is provided outside the balloon (2); and a power source circuit (6) that is provided within the balloon (2) and is for sending, to the blower (4), a portion of the power to be supplied to the discharge lamp (3).

Abstract: The present invention simplifies the system of power lines from the power source of a balloon-type illumination device to the inside of the balloon. The balloon-type illumination device (1) is provided with: a balloon (2); a discharge lamp (3) provided within the balloon (2); a blower (4) that is provided within the balloon (2) and inflates the balloon (2); a ballast (5) that performs stabilized power supply to the discharge lamp (3) and is provided outside the balloon (2); and a power source circuit (6) that is provided within the balloon (2) and is for sending, to the blower (4), a portion of the power to be supplied to the discharge lamp (3).

Abstract: A light projector includes a power generator 6; a bogie 1 for mounting the power generator 6; an extendable or retractable supporting column 2 vertically installed at the bogie 1; a balloon 4 arranged at an upper end of the extendable or retractable supporting column 2; and a lighting instrument 3 stored in the balloon 4, wherein the power generator 6 and the lighting instrument 3 can be electrically energized. The lighting instrument 3 is lit through supply of electricity from the power generator 6 installed at the bogie 1 and the light thus generated is changed into a soft-feeling light through the balloon 4 so as to enable the light to be projected in an outward entire circumferential direction of the balloon 4. Thus, even if the light projector is used as a night-time lighting for a road work and the like, the light of the lighting instrument can be radiated in a wide range without causing a driver of a passing vehicle to feel its glaring effect.

Abstract: A projector (1) enabling the extension/retraction of a column even when the column is rotated, including the telescopic column (4) installed on a carrier (6) as a base, a lifting and lowering device (21) installed in the column (4), a lighting apparatus (2) installed at the tip of the column (4), and a power supply (5) for supplying power to the lighting system (2). The column (4) is formed of circular tubes and rotated in conjunction with the lifting and lowering device (21). Also, the column (4) is formed by loosely fitting, to each other, a first column (13) fixed to the carrier (6) and second and third columns (4a) and (4b) having outer diameters reduced in that order less than that of the first column (13). The second and third columns (4a) and (4b) are loosely fitted to each other so as to be moved in the vertical direction and rotated in conjunction with each other.

Abstract: A projector (1) enabling the extension/retraction of a column even when the column is rotated, including the telescopic column (4) installed on a carrier (6) as a base, a lifting and lowering device (21) installed in the column (4), a lighting apparatus (2) installed at the tip of the column (4), and a power supply (5) for supplying power to the lighting system (2). The column (4) is formed of circular tubes and rotated in conjunction with the lifting and lowering device (21). Also, the column (4) is formed by loosely fitting, to each other, a first column (13) fixed to the carrier (6) and second and third columns (4a) and (4b) having outer diameters reduced in that order less than that of the first column (13). The second and third columns (4a) and (4b) are loosely fitted to each other so as to be moved in the vertical direction and rotated in conjunction with each other.