GB172130A - Improvements in range-finders - Google Patents

Improvements in range-finders

Info

Publication number
GB172130A
GB172130A GB2544820A GB2544820A GB172130A GB 172130 A GB172130 A GB 172130A GB 2544820 A GB2544820 A GB 2544820A GB 2544820 A GB2544820 A GB 2544820A GB 172130 A GB172130 A GB 172130A
Authority
GB
United Kingdom
Prior art keywords
finders
range
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.)
Expired
Application number
GB2544820A
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.)
ARTHUR HUDSON STEWARD
EDWARD JOHN BELL
Original Assignee
ARTHUR HUDSON STEWARD
EDWARD JOHN BELL
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 ARTHUR HUDSON STEWARD, EDWARD JOHN BELL filed Critical ARTHUR HUDSON STEWARD
Priority to GB2544820A priority Critical patent/GB172130A/en
Publication of GB172130A publication Critical patent/GB172130A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
GB2544820A 1920-09-03 1920-09-03 Improvements in range-finders Expired GB172130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2544820A GB172130A (en) 1920-09-03 1920-09-03 Improvements in range-finders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2544820A GB172130A (en) 1920-09-03 1920-09-03 Improvements in range-finders

Publications (1)

Publication Number Publication Date
GB172130A true GB172130A (en) 1921-12-05

Family

ID=10227827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2544820A Expired GB172130A (en) 1920-09-03 1920-09-03 Improvements in range-finders

Country Status (1)

Country Link
GB (1) GB172130A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6198574B1 (en) * 1999-08-27 2001-03-06 Zygo Corporation Polarization preserving optical systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6198574B1 (en) * 1999-08-27 2001-03-06 Zygo Corporation Polarization preserving optical systems

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