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JPS578516A - Close distance collimatable telescope - Google Patents

Close distance collimatable telescope

Info

Publication number
JPS578516A
JPS578516A JP8337580A JP8337580A JPS578516A JP S578516 A JPS578516 A JP S578516A JP 8337580 A JP8337580 A JP 8337580A JP 8337580 A JP8337580 A JP 8337580A JP S578516 A JPS578516 A JP S578516A
Authority
JP
Japan
Prior art keywords
lens
focusless
collimatable
parallel rays
close distance
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
JP8337580A
Other languages
Japanese (ja)
Inventor
Kazuji Funazaki
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.)
SOTSUKISHIYA KK
Sokkisha Co Ltd
Original Assignee
SOTSUKISHIYA KK
Sokkisha 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 SOTSUKISHIYA KK, Sokkisha Co Ltd filed Critical SOTSUKISHIYA KK
Priority to JP8337580A priority Critical patent/JPS578516A/en
Publication of JPS578516A publication Critical patent/JPS578516A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
    • G02B23/06—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors having a focussing action, e.g. parabolic mirror

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Telescopes (AREA)

Abstract

PURPOSE:To permit collimation from infinity up to close distances by providing a convex lens between an objective lens and a focusless lens and allowing luminous fluxes to focus at a focal plate by the fixed focusless lens. CONSTITUTION:The rays from a close distance point are made into parallel rays by way of an objective lens 8, and these parallel rays pass through a focusing lens 9 and a focusless lens 10, and image on a focal plate 4 via an automatic correcting mechanism 3. This image is visible through an eyepiece lens 5. In the case of infinity, on the other hand, the parallel rays enter the lens 8, and as the lens 9 moves, they pass through the lens 10 and the mechanism 3 and are imaged on the plate 4. With the length of the lens barrel assumed to be the same as that in the conventional process, the short collimatable distance which has been 1.5m in the conventional process is now possible up to 0.3m.
JP8337580A 1980-06-19 1980-06-19 Close distance collimatable telescope Pending JPS578516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8337580A JPS578516A (en) 1980-06-19 1980-06-19 Close distance collimatable telescope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8337580A JPS578516A (en) 1980-06-19 1980-06-19 Close distance collimatable telescope

Publications (1)

Publication Number Publication Date
JPS578516A true JPS578516A (en) 1982-01-16

Family

ID=13800664

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8337580A Pending JPS578516A (en) 1980-06-19 1980-06-19 Close distance collimatable telescope

Country Status (1)

Country Link
JP (1) JPS578516A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059317A (en) * 1983-08-22 1985-04-05 ローエル・エー・ノーブル Optical apparatus for generating visual and optical interaction image naturally within free space

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059317A (en) * 1983-08-22 1985-04-05 ローエル・エー・ノーブル Optical apparatus for generating visual and optical interaction image naturally within free space

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