JPS5773632A - Method and device for detecting light irradiation state - Google Patents

Method and device for detecting light irradiation state

Info

Publication number
JPS5773632A
JPS5773632A JP14937680A JP14937680A JPS5773632A JP S5773632 A JPS5773632 A JP S5773632A JP 14937680 A JP14937680 A JP 14937680A JP 14937680 A JP14937680 A JP 14937680A JP S5773632 A JPS5773632 A JP S5773632A
Authority
JP
Japan
Prior art keywords
light
slit
irradiated area
unit areas
beltlike
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
Application number
JP14937680A
Other languages
Japanese (ja)
Inventor
Manabu Goto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ushio Denki KK
Ushio Inc
Original Assignee
Ushio Denki KK
Ushio Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ushio Denki KK, Ushio Inc filed Critical Ushio Denki KK
Priority to JP14937680A priority Critical patent/JPS5773632A/en
Publication of JPS5773632A publication Critical patent/JPS5773632A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/59—Transmissivity
    • G01N21/5907—Densitometers
    • G01N21/5911—Densitometers of the scanning type

Abstract

PURPOSE:To find accurate illuminance distribution or exposure distribution by outputting photoelectric conversion signals successively by connecting one terminal of each optical fiber to a common photoelectric element while positioning the other terminal in unit areas arrayed in the length direction of a light-irradiated area. CONSTITUTION:One-side terminals of optical fiber (five fibers in the figure) F1- F5 are connected to a common photoelectric element P through a common filter, and its output is connected to an amplifier or integrating amplifier 14. The other-side terminals of the fibers F1-F5 are led from the circumferential wall of a hollow disk carrier 11 to an internal space and positioned in unit areas S1-S5 obtained by dividing a beltlike effective light-irradiated area L formed on the exposed surface 12 of the carrier 11. A control slit plate 21 having a control slit opening overlapping with a slit 5 is provided so that it can be displaced freely in the length direction of the slit 5. Unit opening areas T1-T5 which correspond to the unit areas S1-S5 are selected, one by one, successively and light is permitted to pass through only the selected area. Consequently, the illuminance or exposure distribution of the beltlike light-irradiated area is measured in a simple way with high reliability.
JP14937680A 1980-10-27 1980-10-27 Method and device for detecting light irradiation state Pending JPS5773632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14937680A JPS5773632A (en) 1980-10-27 1980-10-27 Method and device for detecting light irradiation state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14937680A JPS5773632A (en) 1980-10-27 1980-10-27 Method and device for detecting light irradiation state

Publications (1)

Publication Number Publication Date
JPS5773632A true JPS5773632A (en) 1982-05-08

Family

ID=15473774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14937680A Pending JPS5773632A (en) 1980-10-27 1980-10-27 Method and device for detecting light irradiation state

Country Status (1)

Country Link
JP (1) JPS5773632A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6112041U (en) * 1984-06-28 1986-01-24 日産自動車株式会社 Knocking detection device
US4669873A (en) * 1984-02-24 1987-06-02 Leybold-Heraeus Gmbh Spectrophotometer
JPH01239428A (en) * 1988-03-22 1989-09-25 Ushio Inc Light radiation processor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4969178A (en) * 1972-11-04 1974-07-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4969178A (en) * 1972-11-04 1974-07-04

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4669873A (en) * 1984-02-24 1987-06-02 Leybold-Heraeus Gmbh Spectrophotometer
JPS6112041U (en) * 1984-06-28 1986-01-24 日産自動車株式会社 Knocking detection device
JPH01239428A (en) * 1988-03-22 1989-09-25 Ushio Inc Light radiation processor

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