英 [ˌhiːlɪˈɒɡrəfi] 美 [hiːliˈɑːɡrəfi]
n. 照相制版法；反光通信法；太阳面研究
Heliography (in French, héliographie) is the photographic process invented by Joseph Nicéphore Niépce around 1822, which he used to make the earliest known permanent photograph from nature, View from the Window at Le Gras (c. 1826).
拍摄太阳
日光胶版术
太阳面研究
... helical (screw) mount 螺旋形接环 Heliography 凸版摄制法，即最早期摄影的方法 Heliotype 太阳印相法，重铬酸盐制版法之一 (参阅附录) ...
照相制版法；反光通信法；太阳面研究
The discovery I have made and which I call Heliography, consists in reproducing spontaneously, by the action of light.
我将这次探索的结果称为日光图，在于借着光的作用自发再现。
"The discovery I have made and which I call Heliography, consists in reproducing spontaneously, by the action of light…"——Joseph Nicéphore Niépce.
我将这次探索的结果称为日光图，在于借着光的作用自发再现……