JPS5257873A - Photometer - Google Patents
PhotometerInfo
- Publication number
- JPS5257873A JPS5257873A JP13380375A JP13380375A JPS5257873A JP S5257873 A JPS5257873 A JP S5257873A JP 13380375 A JP13380375 A JP 13380375A JP 13380375 A JP13380375 A JP 13380375A JP S5257873 A JPS5257873 A JP S5257873A
- Authority
- JP
- Japan
- Prior art keywords
- light
- output corresponding
- weak
- photometer
- strong
- 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
- 230000035945 sensitivity Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/44—Electric circuits
Abstract
PURPOSE:To electrically and automatically perform changing-over of sensitivity by detecting whether incident light is strong light or weak light, and changingover output corresponding to the strong light and output corresponding to the weak light so that the swing of meter pointer becomes identical.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13380375A JPS5257873A (en) | 1975-11-06 | 1975-11-06 | Photometer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13380375A JPS5257873A (en) | 1975-11-06 | 1975-11-06 | Photometer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5257873A true JPS5257873A (en) | 1977-05-12 |
Family
ID=15113387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13380375A Pending JPS5257873A (en) | 1975-11-06 | 1975-11-06 | Photometer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5257873A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62124524U (en) * | 1986-01-31 | 1987-08-07 |
-
1975
- 1975-11-06 JP JP13380375A patent/JPS5257873A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62124524U (en) * | 1986-01-31 | 1987-08-07 | ||
JPH0428033Y2 (en) * | 1986-01-31 | 1992-07-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5257873A (en) | Photometer | |
JPS5438131A (en) | Toner concentration detecting method of dry type two component developer | |
JPS5385482A (en) | Optimum sensitivity detector of spectrophotometer | |
JPS52104289A (en) | Atomic spectrum generator | |
JPS526579A (en) | Photo detector | |
JPS543582A (en) | Double modulating photometric device | |
JPS5235689A (en) | Reflection measuring device | |
JPS53106184A (en) | Automatic absorption meter | |
JPS52141682A (en) | Sensitivity tester of photoelectric sensor | |
JPS5233778A (en) | Direct reading type clouiness value measuring device | |
JPS51113777A (en) | Linearizer | |
JPS535608A (en) | Hunting characteristic measurement device | |
JPS5441099A (en) | Glass plate breakage detector | |
JPS51144684A (en) | Measurement device of reflection factor or transmittivity | |
JPS52477A (en) | Flame detecting system | |
JPS5280888A (en) | Gas leakage alarm | |
JPS522773A (en) | Intensity of absorbed light analizing device | |
JPS536095A (en) | Radiant ray applied measurement device | |
JPS53100293A (en) | Gas densitometer | |
JPS5211087A (en) | Carbon atomizer | |
JPS5288080A (en) | Light attenuation type smoke detector | |
JPS5268495A (en) | Gas detector | |
JPS5211080A (en) | Diffused light type smoke sensor | |
JPS51113684A (en) | Absorption photometer | |
JPS52100275A (en) | Measuring method of distribution of intensity of illuminance |