JPS5746202A - Heterogenous refractive index lens - Google Patents

Heterogenous refractive index lens

Info

Publication number
JPS5746202A
JPS5746202A JP55122666A JP12266680A JPS5746202A JP S5746202 A JPS5746202 A JP S5746202A JP 55122666 A JP55122666 A JP 55122666A JP 12266680 A JP12266680 A JP 12266680A JP S5746202 A JPS5746202 A JP S5746202A
Authority
JP
Japan
Prior art keywords
refractive index
case
heterogenous
core
thickness
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.)
Granted
Application number
JP55122666A
Other languages
Japanese (ja)
Other versions
JPS593724B2 (en
Inventor
Keisuke Kikuchi
Takitaro Morikawa
Junichi Shimada
Kenjiro Sakurai
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP55122666A priority Critical patent/JPS593724B2/en
Priority to US06/244,915 priority patent/US4422733A/en
Publication of JPS5746202A publication Critical patent/JPS5746202A/en
Publication of JPS593724B2 publication Critical patent/JPS593724B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0087—Simple or compound lenses with index gradient

Landscapes

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

Abstract

PURPOSE:To make a lens small-sized and to realize an increase of a free working distance, by providing clads whose refractive index and film thickness, etc. are different from each other, in 2 circumferences on an optical path of a heterogenous refractive index sphere. CONSTITUTION:A refractive index distribution of a lens core 1 is made, for instance, n<2>(r) shown in the equation (I). In this case, r0, n(0), and G2 and G4 are the core redius, the center refractive index, and quadratic and biquadratic factors, respectively. As an execution example in case when refractive indixes of a light source side clad 2 and a disk side clad 3, their thickness, a refractive index of a disk 4 and its thickness, a distance between the core center and the light source, are made n1 and n2, d1 and d2, n5 and S, (a), respectively, and also in case of b= r0+d2+W+S/n5, that of n(0)=n2=1.6, n1=ns=1.5 and S/r0=0.44, and a scale factor of b/a=0.02 and NA=0.45 is shown. As for a distribution factor, -0.07 G2 -0.2 and -0.025 G4 -0.01 are selected, respectively.
JP55122666A 1980-03-31 1980-09-04 Inhomogeneous refractive index lens Expired JPS593724B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP55122666A JPS593724B2 (en) 1980-09-04 1980-09-04 Inhomogeneous refractive index lens
US06/244,915 US4422733A (en) 1980-03-31 1981-03-18 Cladded spherical lens having uneven refractive index

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55122666A JPS593724B2 (en) 1980-09-04 1980-09-04 Inhomogeneous refractive index lens

Publications (2)

Publication Number Publication Date
JPS5746202A true JPS5746202A (en) 1982-03-16
JPS593724B2 JPS593724B2 (en) 1984-01-25

Family

ID=14841623

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55122666A Expired JPS593724B2 (en) 1980-03-31 1980-09-04 Inhomogeneous refractive index lens

Country Status (1)

Country Link
JP (1) JPS593724B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6052813A (en) * 1983-09-02 1985-03-26 Canon Inc Formation of light source using distributed index lens and light source device
JPS63157334A (en) * 1986-11-27 1988-06-30 エヌ・ベー・フィリップス・フルーイランペンファブリケン Optical scanner
WO2003035377A3 (en) * 2001-10-25 2003-10-16 Ophthonix Inc Eyeglass manufacturing method using variable index layer

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6052813A (en) * 1983-09-02 1985-03-26 Canon Inc Formation of light source using distributed index lens and light source device
JPS63157334A (en) * 1986-11-27 1988-06-30 エヌ・ベー・フィリップス・フルーイランペンファブリケン Optical scanner
WO2003035377A3 (en) * 2001-10-25 2003-10-16 Ophthonix Inc Eyeglass manufacturing method using variable index layer
US6712466B2 (en) 2001-10-25 2004-03-30 Ophthonix, Inc. Eyeglass manufacturing method using variable index layer
US6840619B2 (en) 2001-10-25 2005-01-11 Ophthonix, Inc. Eyeglass manufacturing method using variable index layer
US6942339B2 (en) 2001-10-25 2005-09-13 Ophthonix, Inc. Eyeglass manufacturing method using variable index layer
US7021764B2 (en) 2001-10-25 2006-04-04 Ophtohonix, Inc. Eyeglass manufacturing method using variable index layer
US7249847B2 (en) 2001-10-25 2007-07-31 Ophthonix, Inc. Eyeglass manufacturing method using variable index layer

Also Published As

Publication number Publication date
JPS593724B2 (en) 1984-01-25

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