我们也可以采用其他的表达形式，如 y=fsin\theta ，这样的像高与视场角的关系设计常见于 光栅光谱仪 中，目的是让波长与像高呈线性关系。 更详细靠谱的解答请参考李恒老师和章佳杰老师 …

F-theta lenses are designed with a barrel distortion that yields a displacement that is linear with θ [f*θ, see Figure 1.1 (c)]. This simple response removes the need for complicated electronic …

These F-sin(theta) lenses present satisfactory distortion characteristic and have an improved correction for the curvature of image plane. F-sin(theta) lens will be also name F-lambda lens. …

2018年12月3日 · You should never memorize Fx=Fcos(theta) or Fsin(theta). It depends what theta is and what your axes are. You should read your textbook on how to find components of …

2023年9月20日 · The $x$ component of a force $F$ is $$ F_x = F \cos\theta $$ where $\theta$ is the angle between $F$ and the $x$ axis. You need to make sure you now which angle is used …

2020年10月9日 · The formula for a normal n = mg – Fsin(θ) is all you need, assuming F is an external force, acting at an angle θ up from the the horizontal, on mass m which on a …

These F-sin (theta) lenses present satisfactory distortion characteristic and have an improved correction for the curvature of image plane. F-sin (theta) lens will be also name F-lambda lens.

2001年12月5日 · We present singlet, achromatic doublet and mirror having this characteristic. These F-sin(theta) lenses present satisfactory distortion characteristic and have an improved …

2001年12月1日 · These F-sin(theta) lenses present satisfactory distortion characteristic and have an improved correction for the curvature of image plane. F-sin(theta) lens will be also name F …

2001年12月5日 · F-sin(theta) lens will be also name F-lambda lens. Introducing the desired amount of distortion in an optical system is possible and relatively straight forward for optical …