JPH01179658U - - Google Patents
Info
- Publication number
- JPH01179658U JPH01179658U JP7591288U JP7591288U JPH01179658U JP H01179658 U JPH01179658 U JP H01179658U JP 7591288 U JP7591288 U JP 7591288U JP 7591288 U JP7591288 U JP 7591288U JP H01179658 U JPH01179658 U JP H01179658U
- Authority
- JP
- Japan
- Prior art keywords
- light source
- image reading
- reading device
- light
- excluding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
Landscapes
- Facsimile Heads (AREA)
- Facsimile Scanning Arrangements (AREA)
Description
第１図ａはこの考案の一実施例による画像読み
取り装置を示す断面図、第１図ｂはガラス面の平
面図、第２図は従来の画像読み取り装置を示す断
面図、第３図ａは従来の装置で白原稿を読み取つ
た時の出力電圧の分布波形図、第３図ｂはＬＥＤ
の照度分布波形図を示す。
図において、１はガラス、２はＬＥＤアレイ、
３はロツドレンズアレイ、４は受光センサ、５は
信号処理回路、６は原稿、７はフレームを示す。
なお、図中、同一符号は同一、又は相当部分を示
す。
FIG. 1a is a sectional view showing an image reading device according to an embodiment of the invention, FIG. 1b is a plan view of the glass surface, FIG. 2 is a sectional view showing a conventional image reading device, and FIG. Distribution waveform diagram of the output voltage when reading a white original with a conventional device, Figure 3b shows the LED
This figure shows an illuminance distribution waveform diagram. In the figure, 1 is glass, 2 is an LED array,
3 is a rod lens array, 4 is a light receiving sensor, 5 is a signal processing circuit, 6 is a document, and 7 is a frame.
In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
らを支持するフレームとから構成された画像読み
取り装置において、原稿面を除く光源を囲む装置
内面を鏡面としたことを特徴とする画像読み取り
装置。 An image reading device comprising at least a light-receiving element, a lens system, a light source, and a frame supporting these, characterized in that the inner surface of the device surrounding the light source, excluding the document surface, is a mirror surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7591288U JPH01179658U (en) | 1988-06-07 | 1988-06-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7591288U JPH01179658U (en) | 1988-06-07 | 1988-06-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01179658U true JPH01179658U (en) | 1989-12-22 |
Family
ID=31300961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7591288U Pending JPH01179658U (en) | 1988-06-07 | 1988-06-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01179658U (en) |
-
1988
- 1988-06-07 JP JP7591288U patent/JPH01179658U/ja active Pending