RU97117463A - LENS LENS AND OPTICAL SENSOR DEVICE WITH LENS LENS - Google Patents

LENS LENS AND OPTICAL SENSOR DEVICE WITH LENS LENS

Info

Publication number
RU97117463A
RU97117463A RU97117463/28A RU97117463A RU97117463A RU 97117463 A RU97117463 A RU 97117463A RU 97117463/28 A RU97117463/28 A RU 97117463/28A RU 97117463 A RU97117463 A RU 97117463A RU 97117463 A RU97117463 A RU 97117463A
Authority
RU
Russia
Prior art keywords
lens
optical
optical glass
numerical aperture
satisfies
Prior art date
Application number
RU97117463/28A
Other languages
Russian (ru)
Other versions
RU2202813C2 (en
Inventor
Ямамото Кендзи
Итимура Исао
Маеда Фумисада
Ватанабе Тосио
Охсато Киеси
Original Assignee
Сони Корпорейшн
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
Priority claimed from JP28275096A external-priority patent/JP3932578B2/en
Application filed by Сони Корпорейшн filed Critical Сони Корпорейшн
Publication of RU97117463A publication Critical patent/RU97117463A/en
Application granted granted Critical
Publication of RU2202813C2 publication Critical patent/RU2202813C2/en

Links

Claims (8)

1. Линза объектива, имеющая по меньшей мере два линзовых элемента, изготовленных из оптического стекла, отличающаяся тем, что линзовые элементы имеют число Аббе равное 40 или более на d-линии, в которой по меньшей мере каждая поверхность выполнена в виде асферической поверхности и числовая апертура составляет 0,7 или более.1. The lens of the lens having at least two lens elements made of optical glass, characterized in that the lens elements have an Abbe number of 40 or more on the d-line, in which at least each surface is made in the form of an aspherical surface and numerical the aperture is 0.7 or more. 2. Линза объектива по п. 1, отличающаяся тем, что число Аббе оптического стекла, из которого изготовлены двухлинзовые элементы на d-линии, равно 60 или более и числовая апертура составляет 0,8 или более. 2. The lens of claim 1, wherein the Abbe number of the optical glass of which the two-lens elements are made on the d-line is 60 or more and the numerical aperture is 0.8 or more. 3. Линза объектива по п. 1, отличающаяся тем, что коэффициент преломления оптического стекла, из которого изготовлен каждый элемент линзы, в котором угол, образованный между тангенциальной плоскостью плоскости в периферии линзового элемента и плоскостью, перпендикулярной к оптической оси, больше, чем угол другого линзового элемента, составляет n1 и коэффициент преломления оптического стекла, из которого изготовлен другой линзовый элемент, составляет n2, удовлетворяет следующему соотношению:
n1 > n2.3. The lens of claim 1, wherein the refractive index of the optical glass of which each lens element is made, in which the angle formed between the tangential plane of the plane in the periphery of the lens element and the plane perpendicular to the optical axis is greater than the angle of another lens element is n 1 and the refractive index of the optical glass of which the other lens element is made is n 2 , satisfies the following relation:
n 1 > n 2 . 4. Линза объектива по п.1, отличающаяся тем, что диаметр падающего лазерного луча составляет BW, рабочее расстояние - WD и числовая апертура - NA удовлетворяет следующим соотношениям: если 1,0 ≤ BW < 4,5, 0,05 ≤ WD и 0,7 ≤ NA < 0,8, то WD ≤ 0,25676BW + 0,039189, если 0,8 ≤ NA < 0,9, то WD ≤ 0,14054BW - 0,064865, и если 0,9 ≤ NA, то WD ≤ 0,096429BW - 0,244640. 4. The objective lens according to claim 1, characterized in that the diameter of the incident laser beam is BW, the working distance is WD and the numerical aperture is NA satisfies the following relationships: if 1.0 ≤ BW <4.5, 0.05 ≤ WD and 0.7 ≤ NA <0.8, then WD ≤ 0.25676BW + 0.039189, if 0.8 ≤ NA <0.9, then WD ≤ 0.14054BW - 0.064865, and if 0.9 ≤ NA , then WD ≤ 0.096429BW - 0.244640. 5. Линза объектива по п.1, отличающаяся тем, что отношение F1/F фокусного расстояния F1 линзы, которая расположена на стороне, на которую падает лазерный луч, и фокусное расстояние F всей системы линзы удовлетворяет следующему соотношению: 1,7 < (F1/F) < 2,5.5. The lens of claim 1, characterized in that the ratio F 1 / F of the focal length F 1 of the lens, which is located on the side on which the laser beam falls, and the focal length F of the entire lens system satisfies the following ratio: 1.7 < (F 1 / F) <2.5. 6. Линза объектива по п.1, отличающаяся тем, что аберрацию упомянутой линзы объектива корректируют, чтобы соответствовать толщине Т прозрачной подложки оптической записывающей среды, которая расположена на поверхности записи сигнала и поддерживает упомянутую поверхность записи сигнала, удовлетворяет следующим соотношениям: если 0,7 ≤ NA (числовая апертура) < 0,8, то Т ≤ 0,32 мм, если 0,8 ≤ NA < 0,9, то Т ≤ 0,20 мм, и если 0,9 ≤ NA, то Т ≤ 0,11 мм. 6. The objective lens according to claim 1, characterized in that the aberration of said objective lens is corrected to correspond to the thickness T of the transparent substrate of the optical recording medium, which is located on the signal recording surface and supports said signal recording surface, satisfies the following relations: if 0.7 ≤ NA (numerical aperture) <0.8, then T ≤ 0.32 mm, if 0.8 ≤ NA <0.9, then T ≤ 0.20 mm, and if 0.9 ≤ NA, then T ≤ 0 11 mm. 7. Устройство оптического датчика, включающее источник света и линзу объектива, предназначенную для сведения в одну точку лазерного луча, излучаемого источником света на поверхность записи сигнала оптической записывающей среды, отличающееся тем, что упомянутая линза имеет по меньшей мере два линзовых элемента, изготовленных из оптического стекла с числом Аббе равным 40 или более на d-линии, по меньшей мере, каждая поверхность выполнена в виде асферической поверхности и числовая апертура составляет 0,7 или более. 7. An optical sensor device comprising a light source and an objective lens, designed to bring into one point a laser beam emitted by a light source onto a recording surface of an optical recording medium signal, characterized in that said lens has at least two lens elements made of optical glass with an Abbe number of 40 or more on the d-line, at least each surface is made in the form of an aspherical surface and the numerical aperture is 0.7 or more. 8. Устройство оптического датчика по п.7, отличающееся тем, что число Аббе оптического стекла, из которого изготовлены два линзовых элемента на d-линии, равно 60 или более и числовая апертура составляет 0,8 или более. 8. The optical sensor device according to claim 7, characterized in that the Abbe number of the optical glass of which two lens elements are made on the d-line is 60 or more and the numerical aperture is 0.8 or more.
RU97117463/28A 1996-10-24 1997-10-23 Objective lens and mechanical design of optical sensor incorporating objective lens RU2202813C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP28275096A JP3932578B2 (en) 1996-10-24 1996-10-24 Objective lens and optical pickup device
JPPO8-282750 1996-10-24

Publications (2)

Publication Number Publication Date
RU97117463A true RU97117463A (en) 1999-07-20
RU2202813C2 RU2202813C2 (en) 2003-04-20

Family

ID=17656577

Family Applications (1)

Application Number Title Priority Date Filing Date
RU97117463/28A RU2202813C2 (en) 1996-10-24 1997-10-23 Objective lens and mechanical design of optical sensor incorporating objective lens

Country Status (15)

Country Link
US (1) US6058095A (en)
EP (1) EP0840156B1 (en)
JP (1) JP3932578B2 (en)
KR (1) KR100527069B1 (en)
CN (1) CN1134675C (en)
AT (1) ATE336735T1 (en)
AU (1) AU723455B2 (en)
CA (1) CA2218675A1 (en)
DE (1) DE69736507T2 (en)
ES (1) ES2267124T3 (en)
ID (1) ID18705A (en)
MY (1) MY119398A (en)
PL (1) PL185067B1 (en)
RU (1) RU2202813C2 (en)
TW (1) TW345620B (en)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6564009B2 (en) * 1997-05-19 2003-05-13 Sony Corporation Apparatus for recording and/or reproducing data onto and/or from an optical disk and method thereof
US20080128844A1 (en) * 2002-11-18 2008-06-05 Tessera North America Integrated micro-optical systems and cameras including the same
JP4364328B2 (en) 1998-12-17 2009-11-18 フジノン株式会社 Objective lens for high-density optical recording media
JP3952621B2 (en) * 1999-01-08 2007-08-01 フジノン株式会社 Objective lens for high-density optical recording media
JP3770367B2 (en) * 1999-05-11 2006-04-26 シャープ株式会社 Optical pickup device
JP3482154B2 (en) 1999-05-18 2003-12-22 シャープ株式会社 Optical pickup device
JP3710960B2 (en) 1999-06-22 2005-10-26 シャープ株式会社 Optical pickup device and optical recording medium
CN1172299C (en) 1999-10-30 2004-10-20 三星电子株式会社 Optical probe
US20010015939A1 (en) * 2000-02-08 2001-08-23 Asahi Kogaku Kogyo Kabushiki Kaisha Objective lens for optical pick-up
WO2001090795A1 (en) * 2000-05-23 2001-11-29 Matsushita Electric Industrial Co., Ltd. Objective lens and optical head
JP3556575B2 (en) 2000-06-06 2004-08-18 シャープ株式会社 Objective lens, optical pickup device having the same, and method of assembling objective lens
JP2001356263A (en) * 2000-06-12 2001-12-26 Pioneer Electronic Corp Combined objective lens, optical pickup device, optical recording and reproducing device and method for manufacturing combined objective lens
JP4083955B2 (en) * 2000-06-12 2008-04-30 パイオニア株式会社 Objective lens, optical pickup device, and optical recording / reproducing device
TWI236543B (en) 2000-09-04 2005-07-21 Sony Corp Optical device, its producing method, as well as recording and reproducing apparatus that employing the optical device
WO2002033700A2 (en) * 2000-10-16 2002-04-25 Konica Corporation Objective lens, coupling lens, light converging optical system, and optical pick-up apparatus
JP2002140831A (en) 2000-11-02 2002-05-17 Sharp Corp Optical pickup device
JP3712628B2 (en) 2001-04-06 2005-11-02 シャープ株式会社 Objective lens, method for correcting manufacturing error thereof, and optical pickup device using the objective lens
KR20020081077A (en) * 2001-04-18 2002-10-26 코니카가부시끼가이샤 Objective lens, converging optical system, optical pickup apparatus and recording and/or reproducing apparatus
JP2003167187A (en) * 2001-06-20 2003-06-13 Konica Corp Objective lens, optical pickup apparatus, and recording and/or reproducing apparatus
JP2003021770A (en) 2001-07-09 2003-01-24 Sony Corp Objective lens, objective lens manufacturing method, optical pickup device and recording and reproducing device
KR100765741B1 (en) 2001-07-26 2007-10-15 삼성전자주식회사 Objective lens having single lens and optical pickup apparatus employing it
KR100813945B1 (en) 2001-08-13 2008-03-14 삼성전자주식회사 Optical pickup and recording medium applied on it
WO2003098615A1 (en) 2001-08-24 2003-11-27 Sharp Kabushiki Kaisha Optical pickup device
JP4494686B2 (en) * 2001-09-18 2010-06-30 Ｈｏｙａ株式会社 Objective lens for optical head and optical head using the same
US7274646B2 (en) 2001-10-04 2007-09-25 Ricoh Company, Ltd. Object lens for an infinite-type optical pickup, optical pickup and optical information processing device
TWI239520B (en) 2001-10-12 2005-09-11 Konica Corp Objective lens, optical element, optical pick-up apparatus and optical information recording and/or reproducing apparatus equipped therewith
WO2003050800A2 (en) * 2001-12-11 2003-06-19 Koninklijke Philips Electronics N.V. Optical scanning device
US6995929B2 (en) * 2001-12-21 2006-02-07 Hendriks Bernardus Hendrikus W Objective lens for scanning optical disks (DVDS)
JP2004005864A (en) * 2002-04-17 2004-01-08 Pioneer Electronic Corp Information recording medium, information reproducing device, information recording device, and information recording and reproducing device
JP2004029288A (en) * 2002-06-25 2004-01-29 Konica Minolta Holdings Inc Objective lens, optical pickup system and recording and reproducing apparatus
JP3892444B2 (en) * 2004-03-01 2007-03-14 シャープ株式会社 Objective lens driving device and optical pickup device using the same
WO2005101393A1 (en) 2004-04-13 2005-10-27 Konica Minolta Opto, Inc. Object optical system for optical pickup device, optical pickup device, drive device for optical information recording medium, condensing lens, and light path synthesizing element
JP2006114081A (en) * 2004-10-12 2006-04-27 Konica Minolta Opto Inc Objective lens and optical pickup system
JP4563444B2 (en) * 2007-12-19 2010-10-13 シャープ株式会社 Optical recording / reproducing device
KR101572531B1 (en) * 2008-09-02 2015-11-27 삼성전자주식회사 Part being centered during assembly Wafer level parts assembly and Apparatus and method for manufacturing wafer level parts assembly
CN109445069B (en) * 2018-12-18 2023-11-14 福建福光天瞳光学有限公司 Economical infrared athermalized lens and imaging method
TWI766658B (en) * 2021-04-23 2022-06-01 大立光電股份有限公司 Optical lens system and time of flight sensing module

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59140414A (en) * 1983-01-31 1984-08-11 Asahi Optical Co Ltd Objective lens for optical disk
US5050970A (en) * 1987-12-18 1991-09-24 Nippon Sheet Glass Co., Ltd. Lens system for use in optical information device
JPH01284816A (en) * 1988-05-12 1989-11-16 Olympus Optical Co Ltd Objective lens for optical pickup
US5204781A (en) * 1989-02-24 1993-04-20 Hoya Corporation Infinite large-aperture lens system with aspherical surfaces
US4973832A (en) * 1989-11-03 1990-11-27 Eastman Kodak Company Optical head chromatically optimized for self-focusing
US5241423A (en) * 1990-07-11 1993-08-31 International Business Machines Corporation High resolution reduction catadioptric relay lens
JPH05100161A (en) * 1991-10-11 1993-04-23 Nikon Corp Object lens for optical disk
DE4323971C2 (en) * 1992-07-16 2002-11-07 Asahi Optical Co Ltd Read / write device for an optical disk
US5349471A (en) * 1993-02-16 1994-09-20 The University Of Rochester Hybrid refractive/diffractive achromatic lens for optical data storage systems
US5444569A (en) * 1993-03-12 1995-08-22 Steven Spence Adkinson Collapsible terrestrial telescope
US5515209A (en) * 1993-08-31 1996-05-07 Orascoptic Research, Inc. Light-weight high-magnification clinical viewer
US5504628A (en) * 1994-01-13 1996-04-02 Texas Instruments Incorporated Passive athermalization of optics
TW297100B (en) * 1994-07-25 1997-02-01 Philips Electronics Nv
DE19534638A1 (en) * 1994-09-19 1996-03-21 Rodenstock Optik G Optical system used as size reducing objective
US5555131A (en) * 1994-10-27 1996-09-10 Symbiosis Corporation Objective lens system for endoscope
JPH08221790A (en) * 1995-02-15 1996-08-30 Sony Corp Optical pickup device
JPH08315404A (en) * 1995-05-18 1996-11-29 Sony Corp Optical pickup device

Similar Documents

Publication Publication Date Title
RU97117463A (en) LENS LENS AND OPTICAL SENSOR DEVICE WITH LENS LENS
US5311611A (en) Imaging ball lens optically immersed with a fiber optic faceplate
US3187627A (en) Microscope and recording optical systems utilizing tapered light conducting fiber bundles
JP2008123573A5 (en)
CA2166339A1 (en) Refractive Ellipsoid Optical Surface Without Spherical Aberration
JP2002303787A5 (en)
KR20050044486A (en) Focusing fiber optic
KR900018711A (en) Optical lenses using objectives and copper lenses for optical disc systems
CN1156722C (en) Optical system for shaping beam and optical pickup employing the same
EP0942299B1 (en) Radial graded-index objective lens system
US4472034A (en) Optical read-out lens system for optically recorded disks
JPS6132649B2 (en)
RU2304795C1 (en) Objective
JPS61277913A (en) Image forming lens
JPS62144127A (en) Light receiving lens device
US4643535A (en) Optical information recording/reproducing element
JPS62229203A (en) Grating lens
KR960025433A (en) Beam Orthogonal Prisms for Optical Disc Recording Devices
RU2222819C2 (en) Gradient lens ( variants )
JPH0625823B2 (en) Objective lens for optical disk
JPS6111721A (en) Collimating lens
JP2511275B2 (en) Optical system for recording / reproducing optical information media
SU877459A1 (en) Magnifying glass
SU1254402A1 (en) Symmetric projection lens
CA1243522A (en) Microlens