JPS5589709A - Distance measuring unit - Google Patents

Distance measuring unit

Info

Publication number
JPS5589709A
JPS5589709A JP16586178A JP16586178A JPS5589709A JP S5589709 A JPS5589709 A JP S5589709A JP 16586178 A JP16586178 A JP 16586178A JP 16586178 A JP16586178 A JP 16586178A JP S5589709 A JPS5589709 A JP S5589709A
Authority
JP
Japan
Prior art keywords
image
distance measurement
systems
compared
image forming
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
JP16586178A
Other languages
Japanese (ja)
Inventor
Hideo Yokota
Mitsuya Hosoe
Takao Kinoshita
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 JP16586178A priority Critical patent/JPS5589709A/en
Publication of JPS5589709A publication Critical patent/JPS5589709A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Optical Distance (AREA)

Abstract

PURPOSE: To increase the accuracy of distance measurement, by providing the cylindrical element to average the distribution of amplitude toward the direction orthogonal to the base line of the image formed on the photo detection element, with the image formation systems of two apart by the distance of base line.
CONSTITUTION: The optical system to be equipped to actual camera is shown in diagram. The reference image is formed on the element train 11 with the reflection mirror 6, image forming lens 8, and reflection prism 10, and compared image is formed on the element train 11 with the reflection mirror 7, image forming lens 9 and prism 10. One cylindrical lens 12 is provided with the two systems and light is incident through it. With this constitution, the image forming systems of two can be adjacent, the length of the photo detection element train can be required minimum, and even for the distance measurement such as object having the change in the luminance toward Z, and even for the shift toward Z between the reference image and compared image, the same part is present in the compared output with the reference output to enable distance measurement.
COPYRIGHT: (C)1980,JPO&Japio
JP16586178A 1978-12-27 1978-12-27 Distance measuring unit Pending JPS5589709A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16586178A JPS5589709A (en) 1978-12-27 1978-12-27 Distance measuring unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16586178A JPS5589709A (en) 1978-12-27 1978-12-27 Distance measuring unit

Publications (1)

Publication Number Publication Date
JPS5589709A true JPS5589709A (en) 1980-07-07

Family

ID=15820376

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16586178A Pending JPS5589709A (en) 1978-12-27 1978-12-27 Distance measuring unit

Country Status (1)

Country Link
JP (1) JPS5589709A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57108615A (en) * 1980-12-25 1982-07-06 Canon Inc Measuring device for distance

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50140160A (en) * 1974-04-27 1975-11-10
JPS5255658A (en) * 1975-10-31 1977-05-07 Yashica Co Ltd Distance ditector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50140160A (en) * 1974-04-27 1975-11-10
JPS5255658A (en) * 1975-10-31 1977-05-07 Yashica Co Ltd Distance ditector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57108615A (en) * 1980-12-25 1982-07-06 Canon Inc Measuring device for distance

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