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Ai351

A1 PROs Co., Ltd.

Professional Promotion Process Profit

4) Notes on CCDs as Optical Elements

(1) This CCD features micro lenses that increase the ability of the photodiodes to collect light and color

filter that allow the CCD to recognize color information integrated on the chip itself in the sections

of the CCD that perform the photoelectrical conversion.

Since these on-chip components ate implemented using plastics, the transparency of the filter and

lens materials is reduced by the light that enters the CCD depending on the spectral characteristics,

intensity, and exposure time.

Due to this fact, these devices must be protected from UV light, sunlight, and any other bright light

during all phases of use and handling, including storage, transport and end product manufacture.

(2) If the same pattern is protected onto the CCD image sensor for an extended period, depending on

the intensity of the image and the time, that pattern may be burned onto the sensor resulting in the

pattern being reflected in the characteristic or variations in characteristic, regardless of whether of

not power is applied.

When not using a CCD, we recommend blocking all light and turning off the power.

5) storage environment

CCD is a precision optical product.

Therefore, temperature, humidity, radiation and static electricity etc. of storage environment have to be

controlled.

Please pay attention to the following when storing CCD.

(1) Storage condition of CCD

a) Packed Condition.

Please storage CCD as it packed on our delivery packing in the following environment.

Temperature

: Ta = 25 ± 10 ℃

Humidity

: RH = 60 % or less

Storage life

: 1year

b) Opened pack condition

When you opened pack, please keep environment as follows.

Temperature

: Ta = 23 ± 5 ℃

Humidity

: RH = 10 % or less

Storage life

: 3 months

If you can not store CCD in dry air, please keep environment as follows.

Temperature

: Ta = 23 ± 5 ℃

Humidity

: RH = 30 ~ 60 %

Storage life

: 3 months

But, the condition should fulfill the following equation.

RH < -3x Ts + 114 ( Red area in Fig.1 )