JP2009130844A5 - - Google Patents
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- JP2009130844A5 JP2009130844A5 JP2007306308A JP2007306308A JP2009130844A5 JP 2009130844 A5 JP2009130844 A5 JP 2009130844A5 JP 2007306308 A JP2007306308 A JP 2007306308A JP 2007306308 A JP2007306308 A JP 2007306308A JP 2009130844 A5 JP2009130844 A5 JP 2009130844A5
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- light source
- reading
- block
- array light
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- 238000005259 measurement Methods 0.000 claims 3
Claims (6)
前記読み取り位置に向けて光を照射する複数の発光素子が複数のブロックを形成するように配置された第１のアレイ光源と、
前記読み取り位置を挟むように前記第１のアレイ光源に対向して設けられた第２のアレイ光源であって、該第２のアレイ光源に備えられた複数の発光素子が前記第１のアレイ光源における複数のブロックに対してそれぞれ互い違いとなるように複数のブロックを形成している、第２のアレイ光源と、
前記読み取り手段による前記基準部材の読み取り結果に応じて前記第１のアレイ光源に形成された１つのブロックの光量を調整し、次に前記第１のアレイ光源に形成された該１つのブロックの光量が調整された後に前記読み取り手段により前記基準部材を読み取ることで得られた読み取り結果に応じて該１つのブロックに対向して前記第２のアレイ光源に形成されている１つのブロックの光量を調整し、さらに前記第２のアレイ光源に形成された該１つのブロックの光量が調整された後に前記読み取り手段により前記基準部材を読み取ることで得られた読み取り結果に応じて該１つのブロックに対向して前記第１のアレイ光源に形成されている他の１つのブロックの光量を調整するといった光量調整を、未調整のブロックが無くなるまで、繰り返し実行する光量調整手段と
を含むことを特徴とする画像読み取り装置。 Reading means for reading either the document or the reference member at the reading position;
A first array light source arranged so that a plurality of light emitting elements that emit light toward the reading position form a plurality of blocks;
A second array light source provided opposite to the first array light source so as to sandwich the reading position, wherein a plurality of light emitting elements provided in the second array light source includes the first array light source. A second array light source forming a plurality of blocks so as to alternate with respect to the plurality of blocks in
The light quantity of one block formed in the first array light source is adjusted according to the reading result of the reference member by the reading means, and then the light quantity of the one block formed in the first array light source The light quantity of one block formed in the second array light source is adjusted to face the one block in accordance with the reading result obtained by reading the reference member by the reading means after the adjustment is made Further, the light quantity of the one block formed in the second array light source is adjusted and the one block is opposed to the one block according to the reading result obtained by reading the reference member by the reading means. Then, the light amount adjustment such as adjusting the light amount of the other one block formed in the first array light source is repeated until there is no unadjusted block. Image reading apparatus which comprises a light amount adjusting means for return run.
前記読み取り手段はラインセンサであり、
前記光量調整手段は、前記読み取り手段の（２Ｎ−１）個の測定点において受光した反射光に応じて前記第１及び第２のアレイ光源の光量調整を実行するものであって、前記第１のアレイ光源と前記第２のアレイ光源においてそれぞれ一端に位置する前記第１ブロックから前記他端に位置する第Ｎブロックまで順番に光量調整することを特徴とする請求項１に記載の画像読み取り装置。 The first array light source and the second array light source are respectively arranged from the first block to the Nth block from one end to the other end (N is a natural number of 2 or more) ,
The reading means is a line sensor;
The light amount adjusting means performs light amount adjustment of the first and second array light sources in accordance with reflected light received at ( 2N−1 ) measurement points of the reading means. 2. The image reading apparatus according to claim 1, wherein in each of the array light source and the second array light source, the light amount is adjusted in order from the first block located at one end to the Nth block located at the other end. .
前記読み取り位置に向けて光を照射する複数の発光素子が複数のブロックを形成するように配置された第１のアレイ光源と、
前記読み取り位置を挟むように前記第１のアレイ光源に対向して設けられた第２のアレイ光源であって、該第２のアレイ光源に備えられた複数の発光素子が前記第１のアレイ光源における複数のブロックに対してそれぞれ互い違いとなるように複数のブロックを形成している、第２のアレイ光源と
を含む画像読み取り装置の光量調整方法であって、
前記読み取り手段による前記基準部材の読み取り結果に応じて前記第１のアレイ光源に形成された１つのブロックの光量を調整し、次に前記第１のアレイ光源に形成された該１つのブロックの光量が調整された後に前記読み取り手段により前記基準部材を読み取ることで得られた読み取り結果に応じて該１つのブロックに対向して前記第２のアレイ光源に形成されている１つのブロックの光量を調整し、さらに前記第２のアレイ光源に形成された該１つのブロックの光量が調整された後に前記読み取り手段により前記基準部材を読み取ることで得られた読み取り結果に応じて該１つのブロックに対向して前記第１のアレイ光源に形成されている他の１つのブロックの光量を調整するといった光量調整を、未調整のブロックが無くなるまで、繰り返し実行することを特徴とする光量調整方法。 Reading means for reading either the document or the reference member at the reading position;
A first array light source arranged so that a plurality of light emitting elements that emit light toward the reading position form a plurality of blocks;
A second array light source provided opposite to the first array light source so as to sandwich the reading position, wherein a plurality of light emitting elements provided in the second array light source includes the first array light source. A light quantity adjustment method for an image reading apparatus including a second array light source, wherein a plurality of blocks are formed so as to be staggered with respect to the plurality of blocks in
The light quantity of one block formed in the first array light source is adjusted according to the reading result of the reference member by the reading means, and then the light quantity of the one block formed in the first array light source The light quantity of one block formed in the second array light source is adjusted to face the one block in accordance with the reading result obtained by reading the reference member by the reading means after the adjustment is made Further, the light quantity of the one block formed in the second array light source is adjusted and the one block is opposed to the one block according to the reading result obtained by reading the reference member by the reading means. Then, the light amount adjustment such as adjusting the light amount of the other one block formed in the first array light source is repeated until there is no unadjusted block. Light amount adjustment method characterized by return run.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007306308A JP5096889B2 (en) | 2007-11-27 | 2007-11-27 | Image reading apparatus and light amount adjustment method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007306308A JP5096889B2 (en) | 2007-11-27 | 2007-11-27 | Image reading apparatus and light amount adjustment method thereof |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2009130844A JP2009130844A (en) | 2009-06-11 |
| JP2009130844A5 true JP2009130844A5 (en) | 2011-01-13 |
| JP5096889B2 JP5096889B2 (en) | 2012-12-12 |
Family
ID=40821286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007306308A Expired - Fee Related JP5096889B2 (en) | 2007-11-27 | 2007-11-27 | Image reading apparatus and light amount adjustment method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5096889B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5077149B2 (en) * | 2008-08-26 | 2012-11-21 | 富士ゼロックス株式会社 | Image reading apparatus and program |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60150580U (en) * | 1984-03-09 | 1985-10-05 | 神鋼電機株式会社 | fare display device |
| JPS60150850U (en) * | 1984-03-16 | 1985-10-07 | 株式会社リコー | light source device |
| JP2000358133A (en) * | 1999-06-15 | 2000-12-26 | Oki Electric Ind Co Ltd | Image input device |
-
2007
- 2007-11-27 JP JP2007306308A patent/JP5096889B2/en not_active Expired - Fee Related
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