iPhone 4相机规格 - 视野/垂直水平角度 [英] iPhone 4 Camera Specifications - Field of View / Vertical-Horizontal Angle

问题描述

有人知道新的iPhone4相机的视野值吗？我正在做一些AR应用程序，我想知道后摄像头的水平和垂直角度。

谢谢！

解决方案

如果传感器高度为3.39 mm（参考横向模式），则一半为1.695 mm。 iPhone 4的焦距列出为3.85 mm。

对于较长的尺寸4.52 / 2 = 2.26mm，atan（2.26mm）是从中心到顶部为23.75度，或从上到下为47.5度。 /3.85）= 30.41中心到左边，或从左到右60.8度（再次参考横向方向）。

因此60.8度水平47.5度垂直。 / p>

稍后ADDED：

因此：

2 * atan（2.26 / 4.28）= 55.7度，由2 *与iPhone 4相比，atan（1.695 / 4.28）= 43.2度

或大约4至5度的视野。

稍后ADDED：

iPhone 5S后置摄像头的传感器尺寸为4.89 x 3.67mm，焦距4.12mm。因此：

2 * atan（（4.89 / 2）/4.12)=61.4度宽

< atan（（3.67 / 2）/4.12）= 48.0度从上到下

...或者一个FOV只是一个比背面照相机iPhone 4大。 / p>

Does someone know the field of view values for the new iPhone4 camera? I'm doing some AR app's, and I want to know the horizontal and vertical angle of the rear camera.

Thanks!

解决方案

If the sensor is 3.39 mm tall (referenced to landscape mode), then half that is 1.695 mm. Focal length for the iPhone 4 is listed as 3.85 mm. atan(1.695/3.85) is 23.75 degrees from center to top, or 47.5 degrees top to bottom.

For the longer dimension 4.52/2 = 2.26 mm, atan(2.26/3.85) = 30.41 center to side, or 60.8 degrees left to right (again referencing with respect to landscape orientation).

So 60.8 degrees horizontal by 47.5 degrees vertical.

ADDED much later:

The focal length for the newer iPhone 4S back camera is listed as 4.28 mm, but with the same sensor dimensions as the older iPhone 4. So:

2*atan(2.26/4.28) = 55.7 degrees, by 2*atan(1.695/4.28) = 43.2 degrees

or roughly a 4 to 5 degree smaller field-of-view compared with the iPhone 4.

ADDED much much later:

The sensor size for the iPhone 5S back camera is reported to be 4.89 x 3.67 mm, with a focal length of 4.12 mm. Thus:

2*atan((4.89/2)/4.12) = 61.4 degrees wide

2*atan((3.67/2)/4.12) = 48.0 degrees top to bottom

...or an FOV just a smidge larger than the back camera the iPhone 4.

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