JPS51144637A - Photo-divider - Google Patents

Photo-divider

Info

Publication number
JPS51144637A
JPS51144637A JP50068768A JP6876875A JPS51144637A JP S51144637 A JPS51144637 A JP S51144637A JP 50068768 A JP50068768 A JP 50068768A JP 6876875 A JP6876875 A JP 6876875A JP S51144637 A JPS51144637 A JP S51144637A
Authority
JP
Japan
Prior art keywords
photometry
divider
photo
enlarging
images
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
JP50068768A
Other languages
Japanese (ja)
Inventor
Kazuya Matsumoto
Susumu Matsumura
Aiichiro Koyama
Yoichi Okuno
Tokuichi Tsunekawa
Tadashi Ito
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.)
Canon Inc
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Priority to JP50068768A priority Critical patent/JPS51144637A/en
Priority to US05/691,628 priority patent/US4103153A/en
Publication of JPS51144637A publication Critical patent/JPS51144637A/en
Priority to US05/869,447 priority patent/US4178084A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: When photometry is carried out by using two diffraction gratings, the enlarging one diffraction grating ensures center spot photometry and mean photometry of images.
COPYRIGHT: (C)1976,JPO&Japio
JP50068768A 1975-06-06 1975-06-06 Photo-divider Pending JPS51144637A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP50068768A JPS51144637A (en) 1975-06-06 1975-06-06 Photo-divider
US05/691,628 US4103153A (en) 1975-06-06 1976-06-01 Device for measuring light incident on an image forming optical system
US05/869,447 US4178084A (en) 1975-06-06 1978-01-16 Device for measuring light incident on an image forming optical system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50068768A JPS51144637A (en) 1975-06-06 1975-06-06 Photo-divider

Publications (1)

Publication Number Publication Date
JPS51144637A true JPS51144637A (en) 1976-12-11

Family

ID=13383232

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50068768A Pending JPS51144637A (en) 1975-06-06 1975-06-06 Photo-divider

Country Status (1)

Country Link
JP (1) JPS51144637A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5556351A (en) * 1993-04-28 1996-09-17 Tochigi Fuji Sangyo Kabushiki Kaisha Differential apparatus
US5713812A (en) * 1995-09-19 1998-02-03 Tochigi Fuji Sangyo Kabushiki Kaisha Differential apparatus
US5728025A (en) * 1995-04-18 1998-03-17 Tochigi Fuji Sangyo Kabushiki Kaisha Differential apparatus
US5728024A (en) * 1995-03-16 1998-03-17 Tochigi Fuji Sangyo Kabushiki Kaisha Differential apparatus
US5749803A (en) * 1995-09-13 1998-05-12 Tochigi Fuji Sangyo Kabushiki Kaisha Differential apparatus
US5823907A (en) * 1996-05-30 1998-10-20 Tochigi Fuji Sangyo Kabushiki Kaisha Access hole for differential apparatus
US5839986A (en) * 1996-07-23 1998-11-24 Tochigi Fuji Sangyo Kabushiki Kaisha Differential device with disconnect
US5904634A (en) * 1996-10-30 1999-05-18 Tochigi Fuji Sangyo Kabushiki Kaisha Differential apparatus with additional speed increasing gear and speed decreasing gear selectively engageable with a single output shaft
US8201471B2 (en) 2005-09-28 2012-06-19 Enplas Corporation Gears and gearing apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5556351A (en) * 1993-04-28 1996-09-17 Tochigi Fuji Sangyo Kabushiki Kaisha Differential apparatus
US5728024A (en) * 1995-03-16 1998-03-17 Tochigi Fuji Sangyo Kabushiki Kaisha Differential apparatus
US5728025A (en) * 1995-04-18 1998-03-17 Tochigi Fuji Sangyo Kabushiki Kaisha Differential apparatus
US5749803A (en) * 1995-09-13 1998-05-12 Tochigi Fuji Sangyo Kabushiki Kaisha Differential apparatus
US5713812A (en) * 1995-09-19 1998-02-03 Tochigi Fuji Sangyo Kabushiki Kaisha Differential apparatus
US5823907A (en) * 1996-05-30 1998-10-20 Tochigi Fuji Sangyo Kabushiki Kaisha Access hole for differential apparatus
US5839986A (en) * 1996-07-23 1998-11-24 Tochigi Fuji Sangyo Kabushiki Kaisha Differential device with disconnect
US5904634A (en) * 1996-10-30 1999-05-18 Tochigi Fuji Sangyo Kabushiki Kaisha Differential apparatus with additional speed increasing gear and speed decreasing gear selectively engageable with a single output shaft
US8201471B2 (en) 2005-09-28 2012-06-19 Enplas Corporation Gears and gearing apparatus

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