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JPS56138705A - Semicircular striplike convex lens - Google Patents

Semicircular striplike convex lens

Info

Publication number
JPS56138705A
JPS56138705A JP4121280A JP4121280A JPS56138705A JP S56138705 A JPS56138705 A JP S56138705A JP 4121280 A JP4121280 A JP 4121280A JP 4121280 A JP4121280 A JP 4121280A JP S56138705 A JPS56138705 A JP S56138705A
Authority
JP
Japan
Prior art keywords
lens
semicircular
convex lens
sun
longitudinal direction
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
JP4121280A
Other languages
Japanese (ja)
Inventor
Hironari Ogawa
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP4121280A priority Critical patent/JPS56138705A/en
Publication of JPS56138705A publication Critical patent/JPS56138705A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/06—Simple or compound lenses with non-spherical faces with cylindrical or toric faces

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

PURPOSE:To form a linear focus despite the movement of a light source in the longitudinal direction by constituting a semicircular striplike convex lens. CONSTITUTION:This lens consists of a baglike molding of transparent glass, plastics or filmlike transparent material sealed therein with liquid or a specific gas and forms a lens 1 of a semicircular strip shape. For example, a linear focus 3 is formed during the day's irradiation of the sun 4, 5 by setting the longitudinal direction of the lens in the east/west direction and moving the center of the convex lens four times a year in the height directions of the sun 4 and sun 5 in the spring, summer, autumn and winter. Namely, the linear focus of the light source moving along the longitudinal direction is formed.
JP4121280A 1980-04-01 1980-04-01 Semicircular striplike convex lens Pending JPS56138705A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4121280A JPS56138705A (en) 1980-04-01 1980-04-01 Semicircular striplike convex lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4121280A JPS56138705A (en) 1980-04-01 1980-04-01 Semicircular striplike convex lens

Publications (1)

Publication Number Publication Date
JPS56138705A true JPS56138705A (en) 1981-10-29

Family

ID=12602093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4121280A Pending JPS56138705A (en) 1980-04-01 1980-04-01 Semicircular striplike convex lens

Country Status (1)

Country Link
JP (1) JPS56138705A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4516018A (en) * 1981-09-04 1985-05-07 Luz International Ltd. Solar sensing arrangement for use in a uniaxis solar collector tracking system
WO1990012533A1 (en) * 1989-04-14 1990-11-01 Graham David Barrett Lens useful as a keratoscope

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4516018A (en) * 1981-09-04 1985-05-07 Luz International Ltd. Solar sensing arrangement for use in a uniaxis solar collector tracking system
WO1990012533A1 (en) * 1989-04-14 1990-11-01 Graham David Barrett Lens useful as a keratoscope
US5302980A (en) * 1989-04-14 1994-04-12 Barrett Graham D Lens useful as a keratoscope

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