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AMIS710401-A4

更新时间： 2024-01-09 03:14:24

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AMIS710401-A4 技术参数

生命周期：	Transferred	Reach Compliance Code：	unknown
风险等级：	5.76	Base Number Matches：	1

AMIS710401-A4: 400dpi CIS Module

Data Sheet

Red 600nm LED Light Source

10.0 Depth of Focus

Figure 4 shows two graphs of typical MTF versus Distance, which can be used to define the working depth-of-focus (DOF). The two

curves indicate the spread among the production modules. Note that the MTF is greater than 50 percent between the 0.0mm and

0.1mm depth. Distances greater than 0.1mm from the glass surface are still usable, but discretion must be used in its application. Since

this module is a 400dpi module, the MTF was measured with a 400dpi or a 200 line-pair per inch optical bar pattern. The test was

conducted with the pixel rate set to 5.0MHz.

The effective algorithm used in the measurements is as described by the following equation:

MTF={[Vp(n)+Vp(n+1)]/2-[Vp(n+2)+Vp(n+3)]/2}/{[Vp(n)+Vp(n+1)]/2+[Vp(n+2)+Vp(n+3)]/2}

Where n is 1, 2, .....3456^th, Vp(n) is the signal amplitude of the n^thpixel.

MTF vs depth focus

PI401MC-A4 STANDARD

SN2028

SN60

0.1 0.2 0.3 0.4 0.5 0.6

Depth (mm) From The Window

Surface

Figure 4: Typical MTF versus Distance

AMI Semiconductor – Jun. 06, M-20589-001

www.amis.com

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