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WO2021056558A1 - Optical filter free lens system - Google Patents

Optical filter free lens system Download PDF

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Publication number
WO2021056558A1
WO2021056558A1 PCT/CN2019/109162 CN2019109162W WO2021056558A1 WO 2021056558 A1 WO2021056558 A1 WO 2021056558A1 CN 2019109162 W CN2019109162 W CN 2019109162W WO 2021056558 A1 WO2021056558 A1 WO 2021056558A1
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WO
WIPO (PCT)
Prior art keywords
lens system
lens
optical lens
lenses
optical
Prior art date
Application number
PCT/CN2019/109162
Other languages
French (fr)
Inventor
Tateoka SUSUMU
Masahiko Koyanagi
Yingqing LIU
Original Assignee
Huawei Technologies 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 Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to PCT/CN2019/109162 priority Critical patent/WO2021056558A1/en
Priority to CN201980100583.6A priority patent/CN114424103A/en
Publication of WO2021056558A1 publication Critical patent/WO2021056558A1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041—Lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/64—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having more than six components

Definitions

  • the present invention relates to an optical lens system for taking images, and more particularly to lens system for a smartphone camera.
  • the number of lens pieces are recently increasing to 6P or 7P for such as mobile phone cameras to reach high image resolution performances.
  • the total track length (TTL) of the optical system length ens.
  • every digital camera has an IR cut filter in front of the image sensor to adapt the spectral sensitivity of the sensor to that of the human eye.
  • the IRCF plate thickness is around 0.11 mm to 0.21 mm which is not small when the requirements for the thickness of the mobile devices are so stringent.
  • miniaturization of the optical lens unit is required in order to minimize the size of the mobile phone itself and secure space for mounting multiple functions.
  • the primary objective of the present invention is to provide an optical filter free lens system for imaging a high quality image without having an excessively long total track length (TTL) .
  • the optical filter free lens system can be applied to any of smartphone camera, sedulity camera, standard camera, medical camera, TOF camera and fisheye camera. This is done by using a resin material which act as an optical filter to form one of a plural of lens of the optics system instead of the optical filter.
  • An optical lens system in accordance with the present invention comprises a plurality of lenses, wherein one of the plurality of lenses is made of a resin which passes a predetermined range of wavelength of light.
  • the one of the plurality of lenses may be a second or a third lens element from an object in order from the object-side surface to the image-side surface. It is preferable to use the resin to form a second or a third lens element considering that the incident angle to the lens element tends to be closer to parallel to the optical axis.
  • any one of the plurality of lenses element may be made of the resin to perform the predetermined filtering function.
  • the one of the plurality of lenses may be injection-molded.
  • the resin may be made of a blue resin material which cuts light other than visible light.
  • the blue resin material may be made of an olefinic COO-R-CH 2 CH 2 -R material.
  • the plurality of lenses may be 6 or 7 pieces and may be used for a mobile phone.
  • the resin may be made of a black resin material which passes only infrared rays.
  • the black resin material may be made of polycarbonate doped with an absorbing agent which absorbs visible light.
  • the optical lens system may be used for a TOF camera or fisheye camera.
  • FIG. 1-1 shows a cross-sectional illustration of a first embodiment of a seven-piece optical lens system of the present invention.
  • FIG. 1-2 shows a 3D model of the seven-piece optical lens system shown in FIG. 1-1
  • FIG. 2-1 shows a blue resin sheet used for a blue lens of the present invention, which cuts IR light.
  • FIG. 2-2 shows a blue lens which is formed by injection molding from the blue resin sheet of FIG. 2-1.
  • FIG. 3-1 shows a transmittance graph of the blue resin sheet and an ordinal IRCF when the incident angle is 0 degrees.
  • FIG. 3-2 shows a graph similar to FIG. 3-1 when the incident angle is 30 degrees.
  • FIG. 4-1 shows a cross-sectional illustration of a second embodiment of an eight-piece optical lens system of the present invention.
  • FIG. 4-2 shows a 3D-model the optical lens system of FIG. 4-1.
  • FIG. 5-1 shows a black resin sheet used for a black lens of the present invention, which passes only IR light.
  • FIG. 5-2 shows a black lens which is formed by injection molding from the black resin sheet of FIG. 5-1.
  • FIG. 6-1 shows a transmittance graph of the black resin sheet.
  • FIG. 6-2 shows a transmittance graph of the black resin sheet of FIG 6-1.
  • FIG. 1-1 shows a cross-sectional illustration of a first embodiment of a seven-piece optical lens system.
  • FIG. 1-2 shows a 3D model of the seven-piece optical lens system shown in FIG. 1-1. In these Figures, there is no IRCF used.
  • a lens system may include: a first lens having a positive refractive power; a second lens having a positive refractive power; a third lens having a negative refractive power; a fourth lens having a refractive power; a fifth lens having a positive refractive power; and a sixth lens having a refractive power and a shape in which an image side surface thereof is concave toward an image side.
  • An iris may be provided on an object side of the first lens.
  • the first lens may have a shape in which the object side surface thereof is convex toward the object side.
  • the second lens may have a shape in which both surfaces thereof are convex.
  • the third lens may have a shape in which both surfaces thereof are concave.
  • the fourth lens may have a meniscus shape and be convex toward the object side.
  • the fifth lens may have a shape in which the image side surface thereof is concave toward the image side.
  • the fifth lens may have a meniscus shape and be convex toward the image side.
  • the sixth lens may have a shape in which the image side surface thereof is concave toward the image side.
  • the sixth lens may have at least one point of inflection formed on the image side surface thereof.
  • the seventh lens may have at least one point of inflection formed on the image side surface thereof.
  • At least one of the object side surface and image side surface of each of the lenses from the first to the sixth may be an aspherical surface.
  • the second lens is an IR cut lens of the present invention.
  • Other lens may be made of any optical glass or plastic.
  • IR cut lens of the present invention is made of a blue resin.
  • FIG. 2-1 shows a sample of blue resin sheet from which a blue lens is made.
  • the blue resin sheet may be made of an olefinic COO-R-CH 2 CH 2 -R material doped with an absorbing agent for absorbing IR and UV light.
  • a desired lens may be formed by injection molding from the blue resin, as you can see from FIG. 2-2.
  • IR cut coatings and AR coatings are applied to the blue lens for a fine adjustment of filtering performance.
  • FIG. 3-1 shows a graph of the transmittance of the blue resin sheet relative to the transmittance of an ordinal IRCF when the incident angle is 0 degree.
  • FIG. 3-2 shows a graph similar to FIG. 3-1 but when the incident angle is 30 degree.
  • the blue resin sheet of the first embodiment of the present invention passes only light in range of wavelength of 400 nm to 700 nm.
  • the transmittance of the blue resin sheet drops down to about 10 %around 750 nm and raises again.
  • the blue lens made of the blue resin can be deposited with an IR cut coating to cut the light with wavelength over 750 nm. It is easy to reflect or absorb the light with wavelength over 750 nm by a conventional technique when the material itself has such drop of the transmittance around 700 nm.
  • FIG. 4-1 shows a cross-sectional illustration of a second embodiment of an eight-piece optical lens system for a fish eye camera.
  • FIG. 4-2 shows a 3D-model of the optical lens system of FIG. 4-1. There is no optical filter is used in this lens system.
  • the eight-piece optical lens system consists of, in order from the object side, a first lens which is a negative meniscus having a convex shape on the object side, a second lens having a convex negative meniscus, a third lens having a positive refractive power, a fourth lens having negative refractive power, a fifth lens having negative refractive power, a refractive power having a concave shape on the object side, sixth and seventh lenses which are negative and positive cemented lenses, and an eighth lens having positive refracting power, positive refraction.
  • the optical system has two-groups construction in which a first lens group and a second lens group are arranged in order from the object side.
  • the first lens group comprises the first to third lens
  • the second lens group comprises the fourth to eight lens.
  • the first lens group moves toward the object side departing from the second lens group, and conversely.
  • the third lens is an IR pass lens of the present invention.
  • Other lens may be made of any optical glass or plastic.
  • An IR pass lens of the present invention is made of a black resin.
  • FIG. 5 shows a sample of black resin sheet from which the black lens is made.
  • the black resin sheet may be made of a polycarbonate doped with an absorbing agent such as chlorophyll for absorbing visible light and passes only IR.
  • a desired lens may be formed by injection molding from the back resin.
  • An AR coating may be applied to the black lens.
  • FIG. 6 shows graphs of the transmittance through the black resin sheet of 0.2 mm, 1 mm, 2 mm, and 3mm thickness relative to each wavelength. It shows the effect as an IR pass filter for each thickness.
  • the optical lens system of the first embodiment of the present invention passes only light in range of wavelength above 700 nm as it passes only IR light. Moreover, there is no significant difference according to each thickness of the he black resin sheet.
  • the lens systems configured as described above may improve aberration, a factor degrading image quality by excluding an optical filter, usually placed in front of an image sensor.
  • the lens module configured as described above may have enhanced resolution, and may facilitate reducing weight and lowering manufacturing costs for same reason.
  • An optical designer may design a lens system more freely without considering a space for an optical filter anywhere in the lens system.
  • An aspect of the present disclosure may also provide a bright lens module (low F no. ) including an iris for vinetting.
  • the lens system according to the present invention can be applied especially to a mobile phone camera, it can be also applied to cameras in any mobile device such as a tablet type device and wearable device, cameras in the field of Information Technology, such as a TOF camera and fisheye camera, a standard camera, or a medical camera.
  • a mobile device such as a tablet type device and wearable device
  • cameras in the field of Information Technology such as a TOF camera and fisheye camera, a standard camera, or a medical camera.

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

Abstract

An optical lens system comprises a plurality of lenses, wherein one of the plurality of lenses is made of a resin which passes a predetermined range of wavelength of light. Therefore, the optical lens system does not need an optical filter within its TTL.

Description

OPTICAL FILTER FREE LENS SYSTEM BACKGROUND OF THE INVENTION
Field of the Invention
The present invention relates to an optical lens system for taking images, and more particularly to lens system for a smartphone camera.
Description of the Related Art
In recent years, with the popularity of mobile phone cameras, optical lens systems for taking images have become thinner and thinner, and the electronic imaging sensor of a general digital camera is typically a CCD (Charge Coupled Device) or CMOS (Complementary Metal Oxide Semiconductor) sensor. Due to advances in semiconductor manufacturing, the pixel size of sensors is continually being reduced, and miniaturized optical lens systems for taking images have increasingly higher resolutions.
Therefore, the number of lens pieces are recently increasing to 6P or 7P for such as mobile phone cameras to reach high image resolution performances. However, as more lens pieces are used, the total track length (TTL) of the optical system lengthens. In addition, every digital camera has an IR cut filter in front of the image sensor to adapt the spectral sensitivity of the sensor to that of the human eye. For an example, the IRCF plate thickness is around 0.11 mm to 0.21 mm which is not small when the requirements for the thickness of the mobile devices are so stringent. In the case of a mobile phone, miniaturization of the optical lens unit is required in order to minimize the size of the mobile phone itself and secure space for mounting multiple functions.
Therefore, there is a demand for an IRCF Plate free camera lens to minimize the TTL, which can be installed within a smartphone without compromising image quality.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide an optical filter free lens system for imaging a high quality image without having an excessively long total track  length (TTL) . The optical filter free lens system can be applied to any of smartphone camera, sedulity camera, standard camera, medical camera, TOF camera and fisheye camera. This is done by using a resin material which act as an optical filter to form one of a plural of lens of the optics system instead of the optical filter.
An optical lens system in accordance with the present invention comprises a plurality of lenses, wherein one of the plurality of lenses is made of a resin which passes a predetermined range of wavelength of light.
According to one aspect of the present optical lens system, the one of the plurality of lenses may be a second or a third lens element from an object in order from the object-side surface to the image-side surface. It is preferable to use the resin to form a second or a third lens element considering that the incident angle to the lens element tends to be closer to parallel to the optical axis. However, any one of the plurality of lenses element may be made of the resin to perform the predetermined filtering function.
According to one aspect of the present optical lens system, the one of the plurality of lenses may be injection-molded.
According to one aspect of the present optical lens system, the resin may be made of a blue resin material which cuts light other than visible light.
According to one aspect of the present optical lens system, the blue resin material may be made of an olefinic COO-R-CH 2CH 2-R material.
According to one aspect of the present optical lens system, the plurality of lenses may be 6 or 7 pieces and may be used for a mobile phone.
According to another aspect of the present optical lens system, the resin may be made of a black resin material which passes only infrared rays.
According to one aspect of the present optical lens system, the black resin material may be made of polycarbonate doped with an absorbing agent which absorbs visible light.
According to one aspect of the present optical lens system, the optical lens system may be used for a TOF camera or fisheye camera.
The present invention will be presented in further detail from the following descriptions with the accompanying drawings, which show, for purpose of illustration only, the preferred embodiments in accordance with the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention can be better understood from the following detailed description of non-limiting embodiments thereof, and on examining the accompanying drawings, in which:
FIG. 1-1 shows a cross-sectional illustration of a first embodiment of a seven-piece optical lens system of the present invention.
FIG. 1-2 shows a 3D model of the seven-piece optical lens system shown in FIG. 1-1
FIG. 2-1 shows a blue resin sheet used for a blue lens of the present invention, which cuts IR light.
FIG. 2-2 shows a blue lens which is formed by injection molding from the blue resin sheet of FIG. 2-1.
FIG. 3-1 shows a transmittance graph of the blue resin sheet and an ordinal IRCF when the incident angle is 0 degrees.
FIG. 3-2 shows a graph similar to FIG. 3-1 when the incident angle is 30 degrees.
FIG. 4-1 shows a cross-sectional illustration of a second embodiment of an eight-piece optical lens system of the present invention.
FIG. 4-2 shows a 3D-model the optical lens system of FIG. 4-1.
FIG. 5-1 shows a black resin sheet used for a black lens of the present invention, which passes only IR light.
FIG. 5-2 shows a black lens which is formed by injection molding from the black resin sheet of FIG. 5-1.
FIG. 6-1 shows a transmittance graph of the black resin sheet.
FIG. 6-2 shows a transmittance graph of the black resin sheet of FIG 6-1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
First Embodiment
FIG. 1-1 shows a cross-sectional illustration of a first embodiment of a seven-piece optical lens system. FIG. 1-2 shows a 3D model of the seven-piece optical lens system shown in FIG. 1-1. In these Figures, there is no IRCF used.
According to this aspect of the present disclosure, a lens system may include: a first lens having a positive refractive power; a second lens having a positive refractive power; a third lens having a negative refractive power; a fourth lens having a refractive power; a fifth lens having a positive refractive power; and a sixth lens having a refractive power and a shape in which an image side surface thereof is concave toward an image side.
An iris may be provided on an object side of the first lens.
The first lens may have a shape in which the object side surface thereof is convex toward the object side. The second lens may have a shape in which both surfaces thereof are convex. The third lens may have a shape in which both surfaces thereof are concave. The fourth lens may have a meniscus shape and be convex toward the object side. The fifth lens may have a shape in which the image side surface thereof is concave toward the image side. The fifth lens may have a meniscus shape and be convex toward the image side. The sixth lens may have a shape in which the image side surface thereof is concave toward the image side. The sixth lens may have at least one point of inflection formed on the image side surface thereof. The seventh lens may have at least one point of inflection formed on the image side surface thereof.
At least one of the object side surface and image side surface of each of the lenses from the first to the sixth may be an aspherical surface.
In this embodiment, the second lens is an IR cut lens of the present invention. Other lens may be made of any optical glass or plastic.
IR cut lens of the present invention is made of a blue resin. FIG. 2-1 shows a sample of blue resin sheet from which a blue lens is made. The blue resin sheet may be made of an olefinic COO-R-CH 2CH 2-R material doped with an absorbing agent for absorbing IR and UV light. A desired lens may be formed by injection molding from the blue resin, as you can see from FIG. 2-2. In this embodiment, IR cut coatings and AR coatings are applied to the blue lens for a fine adjustment of filtering performance.
FIG. 3-1 shows a graph of the transmittance of the blue resin sheet relative to the transmittance of an ordinal IRCF when the incident angle is 0 degree. FIG. 3-2 shows a graph similar to FIG. 3-1 but when the incident angle is 30 degree.
As you can see from the graph of FIG. 3-1 and FIG. 3-2, the blue resin sheet of the first embodiment of the present invention passes only light in range of wavelength of 400 nm to 700 nm. The transmittance of the blue resin sheet drops down to about 10 %around 750 nm and raises again. Regarding the light having wavelengthover 750 nm, the blue lens made of the blue resin can be deposited with an IR cut coating to cut the light with wavelength over 750 nm. It is easy to reflect or absorb the light with wavelength over 750 nm by a conventional technique when the material itself has such drop of the transmittance around 700 nm.
You can also see that there is no transmittance difference in the drop, emphasized by circles, between two graphs, showing no incident angle dependence, while the ordinal IRCF shows more difference between two incident angles of 0 and 30 degrees. Please see especially an area surrounded by circles in the graphs of FIG. 3-1 and FIG. 3-2.
Second Embodiment
FIG. 4-1 shows a cross-sectional illustration of a second embodiment of an eight-piece optical lens system for a fish eye camera. FIG. 4-2 shows a 3D-model of the optical lens system of FIG. 4-1. There is no optical filter is used in this lens system.
According to this aspect of the present disclosure, the eight-piece optical lens system consists of, in order from the object side, a first lens which is a negative meniscus having a convex shape on the object side, a second lens having a convex negative meniscus, a third lens having a positive refractive power, a fourth lens having negative refractive power, a fifth lens having negative refractive power, a refractive power having a concave shape on the  object side, sixth and seventh lenses which are negative and positive cemented lenses, and an eighth lens having positive refracting power, positive refraction.
The optical system has two-groups construction in which a first lens group and a second lens group are arranged in order from the object side. The first lens group comprises the first to third lens, and the second lens group comprises the fourth to eight lens.
When the optical lens system is focusing on an object closer position from infinity position, the first lens group moves toward the object side departing from the second lens group, and conversely.
In this embodiment, the third lens is an IR pass lens of the present invention. Other lens may be made of any optical glass or plastic.
An IR pass lens of the present invention is made of a black resin. FIG. 5 shows a sample of black resin sheet from which the black lens is made. The black resin sheet may be made of a polycarbonate doped with an absorbing agent such as chlorophyll for absorbing visible light and passes only IR. A desired lens may be formed by injection molding from the back resin. An AR coating may be applied to the black lens.
FIG. 6 shows graphs of the transmittance through the black resin sheet of 0.2 mm, 1 mm, 2 mm, and 3mm thickness relative to each wavelength. It shows the effect as an IR pass filter for each thickness.
As you can see from the graph of Figure 6, the optical lens system of the first embodiment of the present invention passes only light in range of wavelength above 700 nm as it passes only IR light. Moreover, there is no significant difference according to each thickness of the he black resin sheet.
The lens systems configured as described above may improve aberration, a factor degrading image quality by excluding an optical filter, usually placed in front of an image sensor. In addition, the lens module configured as described above may have enhanced resolution, and may facilitate reducing weight and lowering manufacturing costs for same reason.
An optical designer may design a lens system more freely without considering a space for an optical filter anywhere in the lens system.
An aspect of the present disclosure may also provide a bright lens module (low F no. ) including an iris for vinetting.
Although the lens system according to the present invention can be applied especially to a mobile phone camera, it can be also applied to cameras in any mobile device such as a tablet type device and wearable device, cameras in the field of Information Technology, such as a TOF camera and fisheye camera, a standard camera, or a medical camera.
Although preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions, and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims (10)

  1. An optical lens system comprising a plurality of lenses, wherein one of the plurality of lenses is made of a resin which passes a predetermined range of wavelength of light.
  2. An optical lens system as claimed in claim 1, wherein the one of the plurality of lenses is a second or a third lens element from an object in order from the object-side surface to the image-side surface.
  3. An optical lens system as claimed in claim 1 or 2, wherein the one of the plurality of lenses is injection-molded.
  4. An optical lens system as claimed in any one of claims 1 to 3, wherein the resin is made of a blue resin material which cuts light other than visible light.
  5. An optical lens system as claimed in claim 4, wherein the blue resin material is made of an olefinic COO-R-CH2CH2-R material.
  6. An optical lens system as claimed in claim 4 or 5, wherein the plurality of lenses is 6 or 7 pieces.
  7. An optical lens system as claimed in any one of claims 4 to 6, wherein the optical lens system is used for a mobile phone.
  8. An optical lens system as claimed in any one of claims 1 to 3, wherein the resin is made of a black resin material which passes only infrared rays.
  9. An optical lens system as claimed in claim 8, wherein the black resin material is made ofpolycarbonate including chlorophyll.
  10. An optical lens system as claimed in claim 8 or 9, wherein the optical lens system is used for a TOF camera or fisheye camera.
PCT/CN2019/109162 2019-09-29 2019-09-29 Optical filter free lens system WO2021056558A1 (en)

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CN201980100583.6A CN114424103A (en) 2019-09-29 2019-09-29 Lens system without optical filter

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06225893A (en) * 1993-02-04 1994-08-16 Nidek Co Ltd Intraocular lens
CN1790057A (en) * 2004-12-17 2006-06-21 鸿富锦精密工业（深圳）有限公司 Optical plastic lens and preparing method thereof
CN102053341A (en) * 2009-11-05 2011-05-11 大立光电股份有限公司 Near infrared taking lens group
CN103576291A (en) * 2012-07-31 2014-02-12 信泰光学(深圳)有限公司 Camera lens
US20160349420A1 (en) * 2015-05-26 2016-12-01 Genius Electronic Optical Co., Ltd. Optical lens and optical lens module
CN107797164A (en) * 2016-09-07 2018-03-13 大立光电股份有限公司 Optical imaging lens, plastic material thereof, image capturing device and electronic device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200604574A (en) * 2004-07-21 2006-02-01 Prodisc Technology Inc Image pickup lens module with wave filter lens
CN101100520A (en) * 2006-07-04 2008-01-09 谢基生 Method for producing infrared permeable black plastic products and application thereof
KR100771364B1 (en) * 2006-08-22 2007-10-30 엘지이노텍 주식회사 Camera module
TW200918978A (en) * 2007-10-16 2009-05-01 Aptek Optical Corp Camera lens and related image reception device capable of filtering infrared and reducing production cost
TWI418839B (en) * 2009-09-24 2013-12-11 Largan Precision Co Ltd Near infra-red imaging lens assembly
TW201224577A (en) * 2010-07-06 2012-06-16 High Performance Optics Inc High energy visible light filter systems with yellowness index values
TWI475246B (en) * 2011-04-15 2015-03-01 Largan Precision Co Optical lens assembly with filter member for image taking
CN103123433A (en) * 2011-11-21 2013-05-29 鸿富锦精密工业（深圳）有限公司 Lens module
KR20150055969A (en) * 2013-11-14 2015-05-22 한국광기술원 Compact camera module

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06225893A (en) * 1993-02-04 1994-08-16 Nidek Co Ltd Intraocular lens
CN1790057A (en) * 2004-12-17 2006-06-21 鸿富锦精密工业（深圳）有限公司 Optical plastic lens and preparing method thereof
CN102053341A (en) * 2009-11-05 2011-05-11 大立光电股份有限公司 Near infrared taking lens group
CN103576291A (en) * 2012-07-31 2014-02-12 信泰光学(深圳)有限公司 Camera lens
US20160349420A1 (en) * 2015-05-26 2016-12-01 Genius Electronic Optical Co., Ltd. Optical lens and optical lens module
CN107797164A (en) * 2016-09-07 2018-03-13 大立光电股份有限公司 Optical imaging lens, plastic material thereof, image capturing device and electronic device

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