英语作文书面表达请根据下列问题收集有关数码相机的信息,写一篇60个词左右的英语短文.1.When was the dig

英语作文
书面表达
请根据下列问题收集有关数码相机的信息,写一篇60个词左右的英语短文.
1.When was the digital camera invented?2.Where and how was it invented?3.People like to use digital cameras,don,t they?Why? 橡胶皮 1年前他留下的回答 已收到2个回答

qscagr 网友

该名网友总共回答了12个问题，此问答他的回答如下：采纳率：91.7%

The first sort of camera thing that was discovered was the camera obscura. Camera obscura is a completely dark room with a very small hole letting a bit of light through. You then put a large piece of white card in front of it and watch what happens. Whatever is outside (so where the light from the small hole is coming from) is shown on the white background. It doesn't show it the right way round though - it shows the picture upside down. This approach is still used today in all cameras - the hole where the light comes in in the Camera Obscura is the aperture hole in cameras now. It is also still the same rule that the smaller the hole the sharper the image. In cameras they flip the picture for you so you don't see the picture upside down like in the Camera Obscura.
Leonardo da Vinci (1452-1519) discussed the Camera Obscura in the context of the eye, but Giambattista della Porta (1535-1615) was the first to suggest that the camera obscura could be used as a tool for artists. Della Porta suggested that artists and others could use the camera obscura for making drawings by projecting the image onto a sheet of paper and tracing it. Della Porta also suggested placing a lens in the opening, or aperture, of the camera obscura to improve the quality of the projected image, and this innovation contributed to the wider use of the device.
相机的第一件事就是发现暗箱.暗箱是一个完全黑暗的房间,一个非常小的洞让一点光.然后在它的前面放了一大块白色,看看会发生什么.无论是外部的（所以从小孔的光线是来自）在白色的背景.这并不表明它的正确的方式轮虽然它展示的图片倒.这种方法一直沿用到今天所有的相机-孔在光线照在暗箱是相机的光圈孔现在.它还说,小洞更清晰的图像相同的规则.他们在相机翻转照片给你,你看不到图片倒挂在暗箱.
列奥纳多达文西（1452-1519）讨论了在眼睛的上下文暗箱,但Giambattista della Porta（1535-1615）是暗箱可以用来作为一种工具,艺术家第一.德拉·波尔塔认为,艺术家和其他人可以使用针孔照相机的图像投影到一张纸,追踪它制造图纸.德拉·波尔塔还建议将透镜的开口,或孔,暗箱的提高投影图像的质量,和本文的创新贡献到设备的广泛使用.

1年前他留下的回答

5

donglinbrazil 网友

该名网友总共回答了12个问题，此问答他的回答如下：

G-17 digital camera is made by Fei Da camera factory, which has 30 years history and is based in Qingdao, China. G-17 is the latest product. The portable camera is made of light metal, featuring attra...

1年前他留下的回答

1

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