open aperture

Chinese translation: 扫描开口 / 扫描隙

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)

English term or phrase:	open aperture
Chinese translation:	扫描开口 / 扫描隙
Entered by:	Xiaoping Fu

16:45 Jun 20, 2002

English to Chinese translations [PRO]
Tech/Engineering - Photography/Imaging (& Graphic Arts) / imaging

English term or phrase: open aperture

Any dust entering the open aperture, is outside the focus and not seen by the CCD cameras.

shcheong KudoZ activity Questions: 286 (none open) Answers: 152 Singapore
Local time: 20:31

开口处 / 扫描图像入口

Explanation:
如果这个问题也是关于扫描器的，那么 aperture 可能就不是指光圈，而是被扫描图像的入口。这里谈的好象不是平台式扫描器，而是卷入式的。因为平台式扫描器如果落入灰尘，那一定是落在玻璃面板上，不可能不被镜头看见。

此外， focus 似乎不能译为焦点，而应译为“聚焦面”或“聚焦范围”。焦点是几何概念，运用到光学上，是指光线通过镜头后汇聚到的一个点。光线通过焦点后，在散开达到成像面。如果成像面与聚焦面重合或足够接近，则图像清晰，否则图像就模糊。理论上讲，焦点是一个没有大小的抽象的点，是不可能落上灰尘的。假如一粒灰尘正好落在焦点处，那整个图像就会是一片漆黑。

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Note added at 2002-06-21 00:51:57 (GMT)
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抱歉，上面的叙述有一处错误。
“如果成像面与聚焦面重合...”应该是“如果物象所在平面与聚焦面重合...”。

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Note added at 2002-06-21 01:34:05 (GMT)
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回答完 Open Scan Aperture 的问题后再看这个问题，“扫描图像入口”的译法不正确。这里的 Open Aperture 与 Open Scan Aperture 应该是同一个东西，不是图像卷入的开口，而是镜头摄取图像的狭长形开口，所以应建议此不会落上灰尘。这种设计的扫描器的镜头是静止的，而图像是运动的，被卷入后通过窄隙逐行扫描。

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Note added at 2002-06-21 01:42:55 (GMT)
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抱歉，写上面的这段话时错误地切掉了一行。“所以建议”后面切掉了“译为‘扫描隙’或‘扫描开口’。这个缝隙是开放的，没有玻璃覆盖，因”。

Selected response from:

Xiaoping Fu
Canada
Local time: 05:31

Grading comment

thanks.
4 KudoZ points were awarded for this answer

Summary of answers provided

4 +7

打开的光圈

Haichao Wang

4 +7

开放的光圈；开放着的光圈；成开放状态的光圈

Kevin Yang

4 +3

开口处 / 扫描图像入口

Xiaoping Fu

4 +1

秨币ふ回

Li-chuan Yen

Answers

15 mins confidence:

peer agreement (net): +1

秨币ふ回

Explanation:
秨币ふ回

Li-chuan Yen
Local time: 20:31
Native speaker of:

Chinese

18 mins confidence:

peer agreement (net): +7

打开的光圈

Explanation:
打开的光圈

Haichao Wang
Local time: 05:31
Native speaker of:

Chinese
PRO pts in category: 4

1 hr confidence:

peer agreement (net): +7

开放的光圈；开放着的光圈；成开放状态的光圈

Explanation:
Here comes my version in GB code:

Any dust entering the open aperture, is outside the focus and not seen by the CCD cameras.
任何灰尘进入开放着的光圈，都会落到焦圈以外的地方，不会被CCD照相机（or 摄像机）看见。

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Note added at 2002-06-20 18:34:18 (GMT)
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Minor revision:
Any dust entering the open aperture, is outside the focus and not seen by the CCD cameras.
任何灰尘进入开放着的光圈，都会落到焦点范围以外的地方，不会被CCD照相机（or 摄像机）看见。

Kevin Yang
Local time: 05:31
Native speaker of:

Chinese

7 hrs confidence:

peer agreement (net): +3

开口处 / 扫描图像入口

Xiaoping Fu
Canada
Local time: 05:31
Native speaker of:

Chinese
PRO pts in category: 4

Grading comment

thanks.

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