field of view中文

If you want to polarize light in a specific direction, you can model it by setting the polarization state of the light source + reference axis + rotation of the light source.

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fov参数

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fov是什么

If I have a camera with a FOV of, say, 17⁰ deg, how can I limit that FOV to 1x1 deg? I imagine some sort of mask is what I am looking for, but what needs to be considered in designing a solution?

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Your $17^o$ FOV will take a photo of everything in a cone. If you are taking a picture of a brick wall in front of you, that $17^o$ angle will determine how many bricks are in the photo.

The plane formed by the incident light vector and the boundary normal vector is called the incident plane. When the electric field oscillates perpendicular to the incident surface, it is defined as s-polarized light or TE-polarized light. When the electric field oscillates parallel to the plane of incidence, it is defined as p-polarized light or TM polarized light. S is a vertical word in German with the acronym Senkrecht. p stands for parallel.

fov和焦距的关系

When linearly polarized in a specific direction, the light source can be rotated by an angle, thus changing the polarization direction of the resulting light.

FOV tofocal length calculator

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If you want a narrower FOV, you want a photo of fewer bricks, just the ones in a $1^o$ cone. That is what a zoom lens will do.

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Hey yuan, Iam need to see how the polarization effects the interference. how can i set a polarizer such that only S-polarised beam is transmitted. I tried to define ideal2 coating on a cylinder and placed on beam path. But i cant see the effect of places polariser. Could you please help with this regards?

From the figure below, (1) goes in the Z direction, but the electric field oscillates in the Y direction, thus becoming Y-polarized light (linearly polarized light in the Y direction).

More information about S and P polarization states: How does OpticStudio define the s- and p-polarization states? | Zemax Community

Field of view

FOV tofocal length

If you want to set it to X-direction polarization as a prerequisite for light propagation in the Z direction, you need to choose a Y-axis reference.

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(2) It advances in the Z direction, but because the electric field oscillates in the X direction, it becomes X-polarized light (linearly polarized light in the X direction).

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Similarly, if the light source is polarized in the Y direction, you can choose an X-axis reference so that there is no component in the Ex direction.

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In Zemax, the local coordinates used to define the polarization state of the light source are Jx (the energy corresponding to the S component) and Jy (the energy that defines the P component).

FOVcalculator

S = skip.  HPOL light vibrate sideways, and skips off the surface with almost zero penetration.  Think of a pencil held sideways, then thrown toward the surface.  It hits the surface with the pencil sideways, and reflects the sideways pencil away.

P = penetrate. Think of a sewing machine needle, going up and down in a vertical direction, penetrating cloth.  That's what the E field is doing to the optical surface.

P = penetrate. Think of a sewing machine needle, going up and down in a vertical direction, penetrating cloth.  That's what the E field is doing to the optical surface.

Putting a mask over the lens is like closing down the aperture. It reduces the amount of light, making the photo darker.

S = skip.  HPOL light vibrate sideways, and skips off the surface with almost zero penetration.  Think of a pencil held sideways, then thrown toward the surface.  It hits the surface with the pencil sideways, and reflects the sideways pencil away.

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