MY116475A - A lens system for reading image - Google Patents

A lens system for reading image

Info

Publication number
MY116475A
MY116475A MYPI9400467A MY116475A MY 116475 A MY116475 A MY 116475A MY PI9400467 A MYPI9400467 A MY PI9400467A MY 116475 A MY116475 A MY 116475A
Authority
MY
Malaysia
Prior art keywords
image
lens
lens system
reading
aspherical surface
Prior art date
Application number
Inventor
Kazuo Kikutani
Original Assignee
Mahk 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 Mahk Co Ltd filed Critical Mahk Co Ltd
Priority to MYPI9400467 priority Critical patent/MY116475A/en
Publication of MY116475A publication Critical patent/MY116475A/en

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  • Lenses (AREA)

Abstract

A LENS SYSTEM USED FOR READING AN IMAGE, THE SYSTEM BEING CONSTRUCTED OF TWO LENSES (1, 2) AND PRESENTS SUFFICIENT PERFORMANCE FOR READING AN IMAGE IN AN IMAGE SCANNER, A FACSIMILE, ETC. THE SYSTEM IS CONSTRUCTED OF A POSITIVE MENISCUS IMAGE-FORMING LENS (1) AND A POSITIVE MENISCUS AUXILIARY LENS (2). THE CONVEXES OF BOTH LENSES FACE AN OBJECT. THE IMAGE-FORMING LENS (1) HAS AT LEAST ONE ASPHERICAL SURFACE OR IT HAS AN ASPHERICAL SURFACE FORMED BY JOINING AN ASPHERICAL SURFACE LAYER FORMED OF A TRANSPARENT MATERIAL TO THE SURFACE OF A SPHERICAL GLASS LENS. BOTH SURFACES OF THE AUXILIARY LENS (2) ARE ASPHERICAL.( FIG 1 )
MYPI9400467 1994-02-28 1994-02-28 A lens system for reading image MY116475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MYPI9400467 MY116475A (en) 1994-02-28 1994-02-28 A lens system for reading image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MYPI9400467 MY116475A (en) 1994-02-28 1994-02-28 A lens system for reading image

Publications (1)

Publication Number Publication Date
MY116475A true MY116475A (en) 2004-02-28

Family

ID=46850156

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI9400467 MY116475A (en) 1994-02-28 1994-02-28 A lens system for reading image

Country Status (1)

Country Link
MY (1) MY116475A (en)

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