JPH0177635U - - Google Patents
Info
- Publication number
- JPH0177635U JPH0177635U JP1987172788U JP17278887U JPH0177635U JP H0177635 U JPH0177635 U JP H0177635U JP 1987172788 U JP1987172788 U JP 1987172788U JP 17278887 U JP17278887 U JP 17278887U JP H0177635 U JPH0177635 U JP H0177635U
- Authority
- JP
- Japan
- Prior art keywords
- light
- receiving element
- copying
- slit
- enters
- 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
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 claims 1
- 230000003595 spectral effect Effects 0.000 claims 1
- 238000001228 spectrum Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
Description
第１図、第２図は本考案の要部の異なる実施例
を示す断面図、第３図は概略的な全体構成を示す
一部破断平面図、第４図は複写機の光学系を示す
説明図、第５図は従来例を示す構成説明図である
。
３は複写用レンズ、５は原稿濃度検出用センサ
、７はスリツト、９はフイルタ。
Figures 1 and 2 are sectional views showing different embodiments of the main parts of the present invention, Figure 3 is a partially cutaway plan view showing the overall general configuration, and Figure 4 shows the optical system of the copying machine. An explanatory diagram, FIG. 5, is a configuration explanatory diagram showing a conventional example. 3 is a copying lens, 5 is a sensor for detecting the original density, 7 is a slit, and 9 is a filter.
Claims (1)
の受光素子を、複写用レンズ３を通過する結像光
学系からはずれた位置に設け、この受光素子の受
ける受光量により露光用ランプ電圧、または現像
バイアスをコントロールするようにした複写機等
の自動濃度調整装置において、受光素子に入る光
を規制するためのスリツト７と、受光素子に入る
光を複写用レンズ３を通過する光と同一の分光特
性に補正するためのフイルタ９を受光素子５の手
前に設けたことを特徴とする複写機等の自動濃度
調整装置。 A light-receiving element for exposing and scanning the original and detecting the reflected light is provided at a position away from the imaging optical system that passes through the copying lens 3, and depending on the amount of light received by this light-receiving element, the exposure lamp voltage or In an automatic density adjustment device such as a copying machine that controls the developing bias, a slit 7 is used to regulate the light that enters the light receiving element, and a slit 7 is used to control the light that enters the light receiving element so that it has the same spectral spectrum as the light that passes through the copying lens 3. An automatic density adjustment device for a copying machine, etc., characterized in that a filter 9 for correcting characteristics is provided in front of a light receiving element 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987172788U JPH0177635U (en) | 1987-11-13 | 1987-11-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987172788U JPH0177635U (en) | 1987-11-13 | 1987-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0177635U true JPH0177635U (en) | 1989-05-25 |
Family
ID=31464743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987172788U Pending JPH0177635U (en) | 1987-11-13 | 1987-11-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0177635U (en) |
-
1987
- 1987-11-13 JP JP1987172788U patent/JPH0177635U/ja active Pending
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