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Small form factor high-resolution camera
Small form factor high-resolution camera
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机译:小型高分辨率相机
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摘要
A camera including a spherically curved photosensor and a lens system. Effective focal length f of the lens system is within about 20% of the radius of curvature of the photosensor. An image is formed by the lens system at a spherically curved image plane that substantially matches the concave surface of the photosensor. The camera is diffraction-limited with small spot size, allowing small pixels to be used in the photosensor. F/number may be 1.8 or less. The spherically curved image plane formed by the lens system at the photosensor follows f*θ image height law. Chief rays of the lens system are substantially normal to the concave surface of the photosensor. Total axial length of the camera may be 2.0 mm or less. The camera may be implemented in a small package size while still capturing sharp, high-resolution images, making the camera suitable for use in small devices.
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机译:一种照相机,包括球形弯曲的光电传感器和透镜系统。透镜系统的有效焦距f在光电传感器曲率半径的约20%之内。透镜系统在基本上与光电传感器的凹面匹配的球面弯曲的图像平面处形成图像。相机受衍射限制,光斑尺寸小,允许在光电传感器中使用小像素。 F /数可以是1.8或更小。由透镜系统在光传感器处形成的球面弯曲图像平面遵循f *θ图像高度定律。透镜系统的主光线基本上垂直于光电传感器的凹面。相机的总轴向长度可能不超过2.0毫米。该相机可以以小包装尺寸实现,同时仍可以捕获清晰的高分辨率图像,从而使该相机适合在小型设备中使用。
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