JPS57125916A - In-mirror type lens - Google Patents

In-mirror type lens

Info

Publication number
JPS57125916A
JPS57125916A JP56011719A JP1171981A JPS57125916A JP S57125916 A JPS57125916 A JP S57125916A JP 56011719 A JP56011719 A JP 56011719A JP 1171981 A JP1171981 A JP 1171981A JP S57125916 A JPS57125916 A JP S57125916A
Authority
JP
Japan
Prior art keywords
reflecting mirror
lenses
type lens
mirror type
distortions
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
JP56011719A
Other languages
Japanese (ja)
Inventor
Kiyokazu Shibusawa
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP56011719A priority Critical patent/JPS57125916A/en
Publication of JPS57125916A publication Critical patent/JPS57125916A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/008—Systems specially adapted to form image relays or chained systems

Landscapes

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

Abstract

PURPOSE:To reduce weight and to prevent the generation of distortions of a reflectng mirror by molding a reflecting mirror body and a cylindrical body into one body with a resin. CONSTITUTION:A reflecting mirror body 12 is molded of a resin such as polycarbonate into one body to one end of a cylindrical body 13 containing lenses 15, and a reflecting mirror 11 is formed on its plane part 12a. The plural lenses 15 are interposed via spacing rings 16 in the step part 13a of the bore of the body 13, and an annular lens retainer 17 is screwed to the body 13, whereby the lenses 15 are fixed. Thereby, the weight is reduced and the generation of the distortions of the reflecting mirror is prevented.
JP56011719A 1981-01-30 1981-01-30 In-mirror type lens Pending JPS57125916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56011719A JPS57125916A (en) 1981-01-30 1981-01-30 In-mirror type lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56011719A JPS57125916A (en) 1981-01-30 1981-01-30 In-mirror type lens

Publications (1)

Publication Number Publication Date
JPS57125916A true JPS57125916A (en) 1982-08-05

Family

ID=11785842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56011719A Pending JPS57125916A (en) 1981-01-30 1981-01-30 In-mirror type lens

Country Status (1)

Country Link
JP (1) JPS57125916A (en)

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