JPS57157201A - Large-scal condensing member - Google Patents

Large-scal condensing member

Info

Publication number
JPS57157201A
JPS57157201A JP56042741A JP4274181A JPS57157201A JP S57157201 A JPS57157201 A JP S57157201A JP 56042741 A JP56042741 A JP 56042741A JP 4274181 A JP4274181 A JP 4274181A JP S57157201 A JPS57157201 A JP S57157201A
Authority
JP
Japan
Prior art keywords
faces
forming mold
members
shaped
sawtooth
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
JP56042741A
Other languages
Japanese (ja)
Inventor
Masao Horiguchi
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 JP56042741A priority Critical patent/JPS57157201A/en
Publication of JPS57157201A publication Critical patent/JPS57157201A/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
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens

Landscapes

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

Abstract

PURPOSE:To reduce the production cost of a forming mold, by sticking a cylinder-shaped or elliptic cylinder-shaped thin inorganic flass member and a synthetic resin member which has the same form as this glass member and has one face with a sawtooth-shaped section. CONSTITUTION:The first faces and the second faces of inorganic glass members 4, 4'... consist of cylindrical faces of the same curvature, and the first faces of synthetic resin members 6, 6',... consist of cylindrical faces of the same curvature, and the second faces of members 6, 6',... have a sawtooth-shaped section. A composite large-scale converging member 8 is constituted by metallic frames 7, 7',.... Since a forming mold difficult to form and polish is used in common, the production cost of the forming mold is reduced.
JP56042741A 1981-03-24 1981-03-24 Large-scal condensing member Pending JPS57157201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56042741A JPS57157201A (en) 1981-03-24 1981-03-24 Large-scal condensing member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56042741A JPS57157201A (en) 1981-03-24 1981-03-24 Large-scal condensing member

Publications (1)

Publication Number Publication Date
JPS57157201A true JPS57157201A (en) 1982-09-28

Family

ID=12644438

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56042741A Pending JPS57157201A (en) 1981-03-24 1981-03-24 Large-scal condensing member

Country Status (1)

Country Link
JP (1) JPS57157201A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6262155A (en) * 1985-09-09 1987-03-18 ミネソタ　マイニング　アンド　マニユフアクチユアリング　コンパニ− Solar energy collector and thin flexible fresnel lens
JPH068901U (en) * 1991-04-03 1994-02-04 映輔 吉延 Solar heat collector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6262155A (en) * 1985-09-09 1987-03-18 ミネソタ　マイニング　アンド　マニユフアクチユアリング　コンパニ− Solar energy collector and thin flexible fresnel lens
JPH068901U (en) * 1991-04-03 1994-02-04 映輔 吉延 Solar heat collector

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