JPS6214410U - - Google Patents
Info
- Publication number
- JPS6214410U JPS6214410U JP10365385U JP10365385U JPS6214410U JP S6214410 U JPS6214410 U JP S6214410U JP 10365385 U JP10365385 U JP 10365385U JP 10365385 U JP10365385 U JP 10365385U JP S6214410 U JPS6214410 U JP S6214410U
- Authority
- JP
- Japan
- Prior art keywords
- illumination light
- light
- illumination
- endoscope
- optical system
- 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.)
- Granted
Links
- 238000005286 illumination Methods 0.000 claims description 8
- 230000004907 flux Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Description
第１図〜第４図は本考案の一実施例をなす光量
調節装置の異なる絞り状態を示す正面図、第５図
、第６図はそれぞれ異なる他の実施例を示す正面
図、第７図は本考案の光量調節装置が適用される
内視鏡および光源装置の概略図、第８図は光学繊
維束による照明光伝送の原理を示す図、第９図〜
第１１図は体腔内での内視鏡の挿入部の異なる状
態を示す断面図、第１２図、第１３図は従来の光
量調節装置の異なる絞り状態を示す正面図である
。
１０……内視鏡、１１……操作部、１２……挿
入部、１８……光学繊維束（照明光伝送光学系）
、２０……光源装置、２２……ランプ（光源）、
３０，４０，５０……光量調節装置、３１，４１
，５１……遮蔽板、３３，４３，５３……中央部
（移動軌跡が光束の中央部を通る部位）、Ａ……
光束、Ａｃ……光束の中央部、Ａｒ……光束の周
辺部、Ｏ……光束の中心。
1 to 4 are front views showing different aperture states of a light amount adjusting device that is an embodiment of the present invention, FIGS. 5 and 6 are front views showing other different embodiments, and FIG. 8 is a schematic diagram of an endoscope and a light source device to which the light amount adjustment device of the present invention is applied, FIG. 8 is a diagram showing the principle of illumination light transmission by an optical fiber bundle, and FIGS.
FIG. 11 is a sectional view showing different states of the insertion portion of an endoscope inside a body cavity, and FIGS. 12 and 13 are front views showing different aperture states of a conventional light amount adjusting device. 10...Endoscope, 11...Operation section, 12...Insertion section, 18...Optical fiber bundle (illumination light transmission optical system)
, 20... light source device, 22... lamp (light source),
30, 40, 50...Light amount adjustment device, 31, 41
, 51... Shielding plate, 33, 43, 53... Central part (portion where the movement trajectory passes through the central part of the light beam), A...
Luminous flux, Ac... central part of the luminous flux, Ar... peripheral part of the luminous flux, O... center of the luminous flux.
Claims (1)
て、内視鏡の挿入部の所定位置に設けられた照明
窓から照射する際に、光源と照明光伝送光学系の
端部との間に配置された一対の遮蔽板の移動によ
つて上記照明光の光量を調節する装置において、
少なくとも一方の遮蔽板の内側の辺では、移動軌
跡が照明光の光束の中央部を通る部位を、その上
下の部位より突出させたことを特徴とする内視鏡
用光量調節装置。 When the illumination light from the light source is irradiated from the illumination window provided at a predetermined position in the insertion section of the endoscope via the illumination light transmission optical system, the space between the light source and the end of the illumination light transmission optical system is In the device for adjusting the light amount of the illumination light by moving a pair of shielding plates arranged in the
A light amount adjustment device for an endoscope, characterized in that, on the inner side of at least one shielding plate, a portion where the movement locus passes through the center of the luminous flux of illumination light is made to protrude from the portions above and below the portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10365385U JPH0435854Y2 (en) | 1985-07-09 | 1985-07-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10365385U JPH0435854Y2 (en) | 1985-07-09 | 1985-07-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6214410U true JPS6214410U (en) | 1987-01-28 |
| JPH0435854Y2 JPH0435854Y2 (en) | 1992-08-25 |
Family
ID=30976414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10365385U Expired JPH0435854Y2 (en) | 1985-07-09 | 1985-07-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0435854Y2 (en) |
-
1985
- 1985-07-09 JP JP10365385U patent/JPH0435854Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0435854Y2 (en) | 1992-08-25 |