| 摘要 |
PROBLEM TO BE SOLVED: To provide a lamp house that can prevent a temperature rise of a case surrounding a lamp and improve an output of a projected light and a light radiation apparatus having a lamp set to a lamp house. SOLUTION: A lamp house 2 where a lamp 4 is stored has a reflecting mirror 44 for reflecting a part of the light emitted from the lamp 4, a condenser lens 38 arranged to be opposite to the reflecting mirror 44 via the lamp 4 for condensing the light emitted from the lamp 4 and reflected at the reflecting mirror 44, an outer case 8 having a projection window 12 from which the light condensed by the condenser lens 38 is projected, and an inner case 20 housed inside the outer case 8. An air circulation space part 48 is formed between the outer case 8 and inner case 20 for circulating the air entering from an air opening 14 formed at the outer case 8. |
