JPH0439789U - - Google Patents
Info
- Publication number
- JPH0439789U JPH0439789U JP8229890U JP8229890U JPH0439789U JP H0439789 U JPH0439789 U JP H0439789U JP 8229890 U JP8229890 U JP 8229890U JP 8229890 U JP8229890 U JP 8229890U JP H0439789 U JPH0439789 U JP H0439789U
- Authority
- JP
- Japan
- Prior art keywords
- filter
- green
- red
- blue
- rotating
- 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
- 238000005286 illumination Methods 0.000 claims 3
- 238000003384 imaging method Methods 0.000 claims 2
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Closed-Circuit Television Systems (AREA)
- Color Television Image Signal Generators (AREA)
Description
第１図は本考案に係る回転カラーフイルタを含
む電子内視鏡装置の全体構成を示すブロツク図、
第２図は第１図に示した回転カラーフイルタの詳
細を示す平面図、第３図は本考案に係る回転カラ
ーフイルタの他の実施例を示す平面図、第４図及
び第６図はそれぞれ従来の回転カラーフイルタの
一例を示す平面図、第５図は固体撮像素子の分光
感度特性を説明するために用いたグラフである。
１４……観察対象部、１６……固体撮像素子（
ＣＣＤ）、２２……光源、２４……回転カラーフ
イルタ、２４Ａ……Ｒフイルタ、２４Ｂ……Ｇフ
イルタ、２４Ｃ……Ｂフイルタ。
FIG. 1 is a block diagram showing the overall configuration of an electronic endoscope device including a rotating color filter according to the present invention;
2 is a plan view showing details of the rotating color filter shown in FIG. 1, FIG. 3 is a plan view showing another embodiment of the rotating color filter according to the present invention, and FIGS. 4 and 6 are respectively FIG. 5, a plan view showing an example of a conventional rotating color filter, is a graph used to explain the spectral sensitivity characteristics of a solid-state image sensor. 14...Observation target part, 16...Solid-state image sensor (
CCD), 22...light source, 24...rotating color filter, 24A...R filter, 24B...G filter, 24C...B filter.
Claims (1)
を配設し、該回転カラーフイルタを回転させるこ
とにより、赤、緑、青の照明光を順次観察対象部
に向けて照射し、固体撮像素子により順次各色別
の画像を撮像し、この撮像により得た赤、緑、青
の面順次映像信号を同時式に変換してカラー画像
として再生するようにした電子内視鏡装置におい
て、 前記回転カラーフイルタにおける赤、緑、青の
照明光を透過させる赤フイルタ、緑フイルタ、青
フイルタのうち、緑フイルタ及び青フイルタはそ
の中心角がそれぞれ略１２０°になるように形成
し、赤フイルタは白色撮影時に前記固体撮像素子
から得られる赤の映像信号と緑の映像信号の出力
レベルが略一致するようにその中心角を決定して
形成したことを特徴とする電子内視鏡装置におけ
る回転カラーフイルタ。[Claims for Utility Model Registration] A rotating color filter is disposed in the optical path of illumination light from a light source, and by rotating the rotating color filter, red, green, and blue illumination light is sequentially directed toward an observation target. An electronic endoscope that sequentially captures images of each color using a solid-state imaging device, and simultaneously converts the sequential red, green, and blue video signals obtained through this imaging and reproduces them as color images. In the apparatus, among the red filter, green filter, and blue filter that transmit red, green, and blue illumination light in the rotating color filter, the green filter and the blue filter are formed so that their central angles are approximately 120°, respectively. , wherein the red filter is formed by determining its center angle so that the output levels of the red video signal and the green video signal obtained from the solid-state image pickup device substantially match when photographing a white image. Rotating color filter in the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8229890U JPH0439789U (en) | 1990-08-02 | 1990-08-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8229890U JPH0439789U (en) | 1990-08-02 | 1990-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0439789U true JPH0439789U (en) | 1992-04-03 |
Family
ID=31628979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8229890U Pending JPH0439789U (en) | 1990-08-02 | 1990-08-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0439789U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018153660A (en) * | 2012-07-26 | 2018-10-04 | デピュー シンセス プロダクツ, インコーポレーテッドDePuy Synthes Products, Inc. | Continuous video in poor light environment |
-
1990
- 1990-08-02 JP JP8229890U patent/JPH0439789U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018153660A (en) * | 2012-07-26 | 2018-10-04 | デピュー シンセス プロダクツ, インコーポレーテッドDePuy Synthes Products, Inc. | Continuous video in poor light environment |
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