JPS5798072A - Reflected solar locus chart - Google Patents

Reflected solar locus chart

Info

Publication number
JPS5798072A
JPS5798072A JP17415580A JP17415580A JPS5798072A JP S5798072 A JPS5798072 A JP S5798072A JP 17415580 A JP17415580 A JP 17415580A JP 17415580 A JP17415580 A JP 17415580A JP S5798072 A JPS5798072 A JP S5798072A
Authority
JP
Japan
Prior art keywords
chart
locus
axis
reflected
plane
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.)
Granted
Application number
JP17415580A
Other languages
Japanese (ja)
Other versions
JPS6017149B2 (en
Inventor
Tadashi Hotta
Kazuo Fujino
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.)
Shimizu Construction Co Ltd
Original Assignee
Shimizu Construction Co Ltd
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 Shimizu Construction Co Ltd filed Critical Shimizu Construction Co Ltd
Priority to JP55174155A priority Critical patent/JPS6017149B2/en
Publication of JPS5798072A publication Critical patent/JPS5798072A/en
Publication of JPS6017149B2 publication Critical patent/JPS6017149B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G1/00—Hand manipulated computing devices
    • G06G1/0005—Hand manipulated computing devices characterised by a specific application
    • G06G1/0052—Hand manipulated computing devices characterised by a specific application for air navigation or sea navigation

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Navigation (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

PURPOSE:To enable to read the locus of reflected sun very fast and continuously, by forming a protractor, reflected solar locus chart and eye sight chart with transparent films and overlapping the centers freely rotatably. CONSTITUTION:A protractor 1 measuring an angle between a front glass for a car and the like and the north-south axis N, reflected solar locus chart 2 replacing the time of solar locus from the morning to the afternoon, and eye sight chart 3 drawing the eye sight between eye angles of a front glass viewed by the driver toward the progressing direction (a) of a car or the like, e.g., in the range of 20 deg., are prepared. They are constituted with transparent films. First, a point P is determined, an axis N, reflected glass plane M and the direction (a) are matched so that they pass through the point P. Next, 0 deg. of the protractor 1 is coincident with the plane M to read an angle A deg. with the axis N. Further, the axis N of the locus chart 2 is turned to an opposite direction from the actual axis N by the angle A deg. for the plane M. Thus, the locus of reflected sun projected on the plane M can be obtained. Next, the chart 3 is turned so that the direction (a) of the chart 3 is coincident with the direction of a road.
JP55174155A 1980-12-10 1980-12-10 Reflected sun trajectory planisphere Expired JPS6017149B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55174155A JPS6017149B2 (en) 1980-12-10 1980-12-10 Reflected sun trajectory planisphere

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55174155A JPS6017149B2 (en) 1980-12-10 1980-12-10 Reflected sun trajectory planisphere

Publications (2)

Publication Number Publication Date
JPS5798072A true JPS5798072A (en) 1982-06-18
JPS6017149B2 JPS6017149B2 (en) 1985-05-01

Family

ID=15973639

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55174155A Expired JPS6017149B2 (en) 1980-12-10 1980-12-10 Reflected sun trajectory planisphere

Country Status (1)

Country Link
JP (1) JPS6017149B2 (en)

Also Published As

Publication number Publication date
JPS6017149B2 (en) 1985-05-01

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