Thursday, November 21, 2013

Sony Announces Industrial BSI CMOS Sensor

Sony announces 2.5um BSI-pixel based CMOS sensor for industrial applications, the IMX124LQT. Its sensitivity is said to improved by ~2.7 times over the existing FSI 2.5┬Ám pixel in the older IMX036LQR sensor. It looks like this sensitivity advantage is achieved at quite large aperture, while smaller apertures show almost no BSI benefit:


The new sensor has 3.21MP resolution and can deliver 1080p60 video. The ADC has 12b resolution and its gain can be controlled in 51db range by 0.1db increments.

4 comments:

  1. Rolling shutter & color version only for industrial apps? Surveillance / security cams seems more appropriate to me.

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  2. How comes it's more sensitive at low f#?

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    Replies
    1. Because the acceptance angle of the microlenses is wider with the BSI structure. At higher f-numbers, the cone of the rays coming from the back of the lens is narrower so the wider acceptance angle is not as important.

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    2. It does not explain why the BSI sensor is more sensitive at low f# than it is at high f#, at best it should be flat. It is more sensitive to marginal rays?

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