JPS6451507A - Celestial body tracking equipment - Google Patents

Celestial body tracking equipment

Info

Publication number
JPS6451507A
JPS6451507A JP20636787A JP20636787A JPS6451507A JP S6451507 A JPS6451507 A JP S6451507A JP 20636787 A JP20636787 A JP 20636787A JP 20636787 A JP20636787 A JP 20636787A JP S6451507 A JPS6451507 A JP S6451507A
Authority
JP
Japan
Prior art keywords
generation means
pulse generation
pulse
frequencies
frequency
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
JP20636787A
Other languages
Japanese (ja)
Other versions
JPH07120209B2 (en
Inventor
Koji Funatsu
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP20636787A priority Critical patent/JPH07120209B2/en
Publication of JPS6451507A publication Critical patent/JPS6451507A/en
Publication of JPH07120209B2 publication Critical patent/JPH07120209B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Telescopes (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

PURPOSE:To correct a tracking error more easily by providing a means for selectively generating either of a reference pulse including the pulse of a same frequency as the reference pulse different in frequency respectively but showing a prescribed ratio, and a means for simultaneously varying the frequencies of plural pulses. CONSTITUTION:A correction pulse generation means 80 is provided with a first pulse generation means 81, a second pulse generation means 82 and a third pulse generation means 23 which is conventionally similar. On the other hand, a frequency variable means 90 consists of variable resistors R0 which are provided in common between one end of respective resistant arrays of the first<=third pulse generation means 81, 82 and 23 and respective resistant connection terminals of timers IC24 in respective pulse generation means. Since the resistance values of the resistances connected with respective IC can simultaneously be varied by operating the variable resistors R0, the frequencies of the corrected pulses which are set in respective ratios can be shifted in common and speedy correction.
JP20636787A 1987-08-21 1987-08-21 Astronomical tracking device Expired - Fee Related JPH07120209B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20636787A JPH07120209B2 (en) 1987-08-21 1987-08-21 Astronomical tracking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20636787A JPH07120209B2 (en) 1987-08-21 1987-08-21 Astronomical tracking device

Publications (2)

Publication Number Publication Date
JPS6451507A true JPS6451507A (en) 1989-02-27
JPH07120209B2 JPH07120209B2 (en) 1995-12-20

Family

ID=16522153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20636787A Expired - Fee Related JPH07120209B2 (en) 1987-08-21 1987-08-21 Astronomical tracking device

Country Status (1)

Country Link
JP (1) JPH07120209B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002287216A (en) * 2001-03-26 2002-10-03 Yasuo Doi Simple type equatorial for astrophotography
US7079317B2 (en) 1998-10-26 2006-07-18 Meade Instruments Corporation Automated telescope with distributed orientation and operation processing
US7221527B2 (en) 1998-10-26 2007-05-22 Meade Instruments Corporation Systems and methods for automated telescope alignment and orientation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7079317B2 (en) 1998-10-26 2006-07-18 Meade Instruments Corporation Automated telescope with distributed orientation and operation processing
US7092156B2 (en) 1998-10-26 2006-08-15 Meade Instruments Corporation Automated telescope alignment and orientation method
US7221527B2 (en) 1998-10-26 2007-05-22 Meade Instruments Corporation Systems and methods for automated telescope alignment and orientation
JP2002287216A (en) * 2001-03-26 2002-10-03 Yasuo Doi Simple type equatorial for astrophotography

Also Published As

Publication number Publication date
JPH07120209B2 (en) 1995-12-20

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees