JPS6435343A - Light distribution pattern measuring instrument - Google Patents

Light distribution pattern measuring instrument

Info

Publication number
JPS6435343A
JPS6435343A JP19039587A JP19039587A JPS6435343A JP S6435343 A JPS6435343 A JP S6435343A JP 19039587 A JP19039587 A JP 19039587A JP 19039587 A JP19039587 A JP 19039587A JP S6435343 A JPS6435343 A JP S6435343A
Authority
JP
Japan
Prior art keywords
screen
distribution pattern
light distribution
camera
lighting apparatus
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
JP19039587A
Other languages
Japanese (ja)
Inventor
Soichi Kikuchi
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.)
Toshiba Electric Equipment Corp
Original Assignee
Toshiba Electric Equipment Corp
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 Toshiba Electric Equipment Corp filed Critical Toshiba Electric Equipment Corp
Priority to JP19039587A priority Critical patent/JPS6435343A/en
Publication of JPS6435343A publication Critical patent/JPS6435343A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To calibrate gradations by picking up an image of a light distribution pattern formed on a screen by the irradiation of a lighting apparatus by a TV camera, converting its output into gradation data from analog to digital, and arranging a photodetecting means on the screen. CONSTITUTION:The screen 2 with a white diffusion surface is arranged right in front of the lighting apparatus 4. The TV camera 1 is arranged almost at the same position with the lighting apparatus 4 without cutting off projection light to the screen 2 and an image of the light distribution pattern on the screen 2 is picked up and A/D-converted into the gradation data by a computer system 3. Then the data is collated with the output of the photodetecting means 28 provided on the screen surface to give gradations a luminous intensity value, thereby easily obtaining the light distribution pattern of optional luminous intensity. Further, the screen 2, TV camera 1, etc., are unitized and made portable to take a measurement at the actual installation position of the light apparatus, etc.
JP19039587A 1987-07-31 1987-07-31 Light distribution pattern measuring instrument Pending JPS6435343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19039587A JPS6435343A (en) 1987-07-31 1987-07-31 Light distribution pattern measuring instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19039587A JPS6435343A (en) 1987-07-31 1987-07-31 Light distribution pattern measuring instrument

Publications (1)

Publication Number Publication Date
JPS6435343A true JPS6435343A (en) 1989-02-06

Family

ID=16257442

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19039587A Pending JPS6435343A (en) 1987-07-31 1987-07-31 Light distribution pattern measuring instrument

Country Status (1)

Country Link
JP (1) JPS6435343A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001296208A (en) * 2000-04-14 2001-10-26 Anzen Motor Car Co Ltd Luminosity measuring method for headlight tester, and its device
JP2002005785A (en) * 2000-06-26 2002-01-09 Matsushita Electric Works Ltd Measuring method for characteristics of infrared module
JP2007240241A (en) * 2006-03-07 2007-09-20 Toshiba Lighting & Technology Corp Aircraft beacon light inspection device
JP2011112621A (en) * 2009-11-30 2011-06-09 Toshiba Lighting & Technology Corp Mobile photometric apparatus
JP2018506716A (en) * 2015-01-22 2018-03-08 エルエムティー リヒトメステクニク ゲゼルシャフト ミット ベシュレンクテル ハフツング ベルリンＬｍｔ Ｌｉｃｈｔｍｅｓｓｔｅｃｈｎｉｋ Ｇｍｂｈ Ｂｅｒｌｉｎ Method and gonioradiometer for measuring at least one characteristic variable relating to illumination or radiation of a light radiation source in a direction-dependent manner

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001296208A (en) * 2000-04-14 2001-10-26 Anzen Motor Car Co Ltd Luminosity measuring method for headlight tester, and its device
JP2002005785A (en) * 2000-06-26 2002-01-09 Matsushita Electric Works Ltd Measuring method for characteristics of infrared module
JP2007240241A (en) * 2006-03-07 2007-09-20 Toshiba Lighting & Technology Corp Aircraft beacon light inspection device
JP2011112621A (en) * 2009-11-30 2011-06-09 Toshiba Lighting & Technology Corp Mobile photometric apparatus
JP2018506716A (en) * 2015-01-22 2018-03-08 エルエムティー リヒトメステクニク ゲゼルシャフト ミット ベシュレンクテル ハフツング ベルリンＬｍｔ Ｌｉｃｈｔｍｅｓｓｔｅｃｈｎｉｋ Ｇｍｂｈ Ｂｅｒｌｉｎ Method and gonioradiometer for measuring at least one characteristic variable relating to illumination or radiation of a light radiation source in a direction-dependent manner
EP3167260B1 (en) 2015-01-22 2021-08-11 LMT Lichtmesstechnik GmbH Berlin Method for the direction-dependent measurement of at least one lighting or radiometric characteristic variable of an optical radiation source

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