JPS5471652A - Automatic dimmer for microscope light source - Google Patents
Automatic dimmer for microscope light sourceInfo
- Publication number
- JPS5471652A JPS5471652A JP13791477A JP13791477A JPS5471652A JP S5471652 A JPS5471652 A JP S5471652A JP 13791477 A JP13791477 A JP 13791477A JP 13791477 A JP13791477 A JP 13791477A JP S5471652 A JPS5471652 A JP S5471652A
- Authority
- JP
- Japan
- Prior art keywords
- light
- light source
- dimmer
- photo detector
- microscope light
- 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
Abstract
PURPOSE: To change the quantity of light of light source so that the quantity of observation light be constant by receiving the quantity of light in the optical path of a microscope with a photo detector and adjusting a dimmer.
CONSTITUTION: In the structure, part of observation light is designed to pass through an objective lens 8 and then pass through an inclined prism 9 in the lens barrel. The light passing through this prism 9 is reflected by a reflecting mirror 12, and is then led to a photo detector 13. The quantity of light detected by this photo detector 13 is compared with the level 17. A dimmer 14 is adjusted by a control signal 18 based on said comparison, so that the quantity of light in a light source 1 may be changed accordingly.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13791477A JPS5471652A (en) | 1977-11-18 | 1977-11-18 | Automatic dimmer for microscope light source |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13791477A JPS5471652A (en) | 1977-11-18 | 1977-11-18 | Automatic dimmer for microscope light source |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5471652A true JPS5471652A (en) | 1979-06-08 |
Family
ID=15209624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13791477A Pending JPS5471652A (en) | 1977-11-18 | 1977-11-18 | Automatic dimmer for microscope light source |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5471652A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60143313A (en) * | 1983-12-05 | 1985-07-29 | Hitachi Denshi Syst Service Kk | Automatic dimming device of lighting for microscope |
JPS6287928A (en) * | 1985-04-12 | 1987-04-22 | カ−ル・ツアイス−スチフツング | Brightness adjustor for microscope |
JPH032314U (en) * | 1989-05-26 | 1991-01-10 | ||
US5239171A (en) * | 1991-04-26 | 1993-08-24 | Olympus Optical Co., Ltd. | Photographing apparatus balancing brightness for microscopes |
-
1977
- 1977-11-18 JP JP13791477A patent/JPS5471652A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60143313A (en) * | 1983-12-05 | 1985-07-29 | Hitachi Denshi Syst Service Kk | Automatic dimming device of lighting for microscope |
JPS6287928A (en) * | 1985-04-12 | 1987-04-22 | カ−ル・ツアイス−スチフツング | Brightness adjustor for microscope |
JPH032314U (en) * | 1989-05-26 | 1991-01-10 | ||
US5239171A (en) * | 1991-04-26 | 1993-08-24 | Olympus Optical Co., Ltd. | Photographing apparatus balancing brightness for microscopes |
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