印曬照片的器械.外型為木板或金屬板製成的不透光的長方形箱子，內裝光源，光源上置乳白或磨砂玻璃片，箱面開口處平鑲透明玻璃片並設有活蓋.印相時將底片和印相紙對好，底片在下，印相紙在上，合上活蓋，燈箱內紅燈滅白燈亮，印相紙受光，曝光完畢取出印相紙，經過顯影、定影、水洗即成1∶1的照片. Photo printing equipment. Appearance of wood or metal plates made of opaque rectangular box, built-in light source, light cream or frosted glass on the set piece, box inlaid surface openings flat transparent glass and equipped with live cover . India when compared to good film and photographic paper, negatives inthe next, printed paper in the last, live together on the cover, light box,the redlight inside the eradication of white lights, photographic paper by the light exposure is completed remove the photographic paper, after developing, fixing, washing Serve 1:1 photos.
