US00839.5851B2
`
`(12) United States Patent
`Tang et al.
`
`(10) Patent No.:
`(45) Date of Patent:
`
`US 8,395,851 B2
`Mar. 12, 2013
`
`(54) OPTICAL LENS SYSTEM
`(75) Inventors: Hsiang Chi Tang, Taichung (TW);
`Tsung Han Tsai, Taichung (TW); Hsin
`Hsuan Huang, Taichung (TW)
`
`(*) Notice:
`
`(73) Assignee: Largan Precision Co., Ltd., Taichung
`(TW)
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 163 days.
`(21) Appl. No.: 12/980,508
`
`(22) Filed:
`
`Dec. 29, 2010
`
`(65)
`
`(30)
`
`Prior Publication Data
`US 2012/0087019 A1
`Apr. 12, 2012
`
`Foreign Application Priority Data
`
`Oct. 6, 2010 (TW) ............................... 99.133981 A
`
`(51) Int. Cl.
`(2006.01)
`GO2B 3/02
`(2006.01)
`GO2B 13/18
`(2006.01)
`GO2B 9/60
`(52) U.S. Cl. ........................................ 359/714; 35.9/764
`(58) Field of Classification Search .................. 359/714,
`359/753, 764
`See application file for complete search history.
`
`(56)
`
`References Cited
`
`U.S. PATENT DOCUMENTS
`7,365,920 B2
`4/2008 Noda.
`8,072,695 B1* 12/2011 Lee et al. ...................... 359,764
`2010/0214467 A1
`8, 2010 Ohtsu
`2010, O220229 A1
`9/2010 Sano
`2010/0254029 A1 * 10/2010 Shinohara ..................... 359,764
`
`FOREIGN PATENT DOCUMENTS
`2O1508432 U.
`6, 2010
`CN
`* cited by examiner
`Primary Examiner — William Choi
`(74) Attorney, Agent, or Firm — Morris Manning & Martin
`LLP, Tim Tingkang Xia, Esq.
`(57)
`ABSTRACT
`The present invention provides an optical lens system com
`prising, in order from an object side to an image side: a first
`lens element with positive refractive power having a convex
`object-side Surface; a second lens element with negative
`refractive power; a third lens element with positive refractive
`power having a convex object-side Surface and a convex
`image-side Surface; a fourth lens element; and a fifth lens
`element having a concave image-side Surface, the object-side
`and image-side Surfaces thereof being aspheric and at least
`one inflection point being formed on the image-side Surface.
`Such arrangement of optical elements can effectively mini
`mize the size of the optical lens system, lower the sensitivity
`of the optical system, and obtain higher image resolution.
`
`18 Claims, 29 Drawing Sheets
`
`
`
`160
`
`170
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 1 of 41
`
`

`

`U.S. Patent
`US. Patent
`
`Mar. 12, 2013
`Mar. 12, 2013
`
`Sheet 1 of 29
`Sheet 1 of 29
`
`US 8,395,851 B2
`US 8,395,851 B2
`
`
`
`Ii5’k1III
`
`
`
`100
`
`:
`
`110
`
`F1g1A
`
`11
`
`121 122
`
`112
`
`111
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 2 0f 41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 2 of 41
`
`

`

`S.
`
`t
`
`31022.,1v...
`
`92f02teehS
`
`5w
`
`2B1
`
`
`
`.220823
`
`IIIIIIIIIIIIIIIIPzzgooswmi
`a2208;:
`
`
`
`tonHmOHmHQwm>mzoquflm.mmm<A<0Hmm=mmmUHENSQHHmaN
`
`
`
`wzsz—SHHUZOA
`
`mmm:mfg
`
`m..wmIIamwewHEE:H:E:
`
`
`
`
`
`
`
`
`oomd326ad026‘oomdi2:6omododomodio2.oi00.,onHmoemHmmmmwmmemgw‘w‘wagv@200”—Awmmemquqszmavenmo.mmg0.0méio.mi
`
`
`
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 3 0f 41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 3 of 41
`
`
`
`

`

`U.S. Patent
`US. Patent
`
`Mar. 12, 2013
`Mar. 12, 2013
`
`Sheet 3 of 29
`Sheet 3 of 29
`
`US 8,395,851 B2
`US 8,395,851 B2
`
`
`
`
`
`’9’ii‘I7/
`s
`
`Fig2A
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 4 0f 41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 4 of 41
`
`

`

`U.S. Patent
`
`Diar.12,2013
`
`Sheet4of29
`
`US 8,395,851 B2
`
`
`
`ZZ000mowe
`
`22oooofiwm
`
`EZ003.334
`
`o.m
`
`zofiemoewa
`
`HEE):
`
`$5559:—_mu:<2w:m<
`
`B:2):
`
`4545285204
`
`
`
`.mmm<‘Zozmmmm
`
`om.m
`
`._onNew
`
`
`
`
`o.micomd2:6edoidioomdi
`
`
`
` Baded03.oom:.ow2:.oi
`
`mgedm.T
`
`zoEmoeme—fi
`
`
`
`Ammmequizvwpuom
`
`
`
`mmzmHmESizvmzoom
`
`mm.mE
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 5 0f 41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 5 of 41
`
`
`
`

`

`U.S. Patent
`U.S. Patent
`
`Mar. 12, 2013
`Mar. 12, 2013
`
`Sheet 5 Of 29
`Sheet 5 of 29
`
`US 8,395,851 B2
`US 8,395,851 B2
`
`
`
`
`
`
`
`s
`
`310
`
`Fig.3A
`
`\) s S.
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 6 0f 41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 6 of 41
`
`

`

`U.S. Patent
`
`Diar.12,2013
`
`Sheet60f29
`
`US 8,395,851 B2
`
`
`
`220838
`
`2288.3;i
`
`2223c:““““““““
`
`3:925;
`
`wmifismam:
`
`A<zzziuzoq
`
`
`
`2mm:q<ozm=mm
`
`
`o.mm.#o.om._io.mi
`226ad03.?
`2:6oweded896‘035‘
`
`
`
` wwfi|
`
`23,;onHa
`
`H:E):
`
`com.c
`
`com.Oi
`
`zofiemoewfimfi
`
`
`
`AmmmemeSEVwuoom
`
`
`
`AmmmemESizvmsuom
`
`mm.mE
`
`
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 7 0f 41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 7 of 41
`
`
`
`
`

`

`U.S. Patent
`US. Patent
`
`Mar. 12, 2013
`Mar. 12, 2013
`
`Sheet 7 Of 29
`Sheet 7 of 29
`
`US 8,395,851 B2
`US 8,395,851 B2
`
`s\
`A
`
`.
`H
`—
`
`z
`S.
`
`,’lm
`All
`NN s &
`
`=
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 8 0f 41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 8 of 41
`
`

`

`U.S. Patent
`
`Diar.12,2013
`
`Sheet80f29
`
`US 8,395,851 B2
`
`
`
` zofiemoemfimx
` o.mwoom.ooo#.oo.ooofi.cwoom.ow ./|owm9mH:wzfi
`
`
`
`©.m
`
`e:wsH
`
`ZZ000mowe
`
`EZooomwwm
`
`EZooofibww
`
`
`
`zo‘ezoem_a
`
`UHH<EUHHM<
`
`
`
`mm>mzooqum
`
`A<zflmzefiozoq
`
`
`
`.mmm<q<oflmm=mm
`
`mgo.o
`
`mgw
`
`
`
`AmmmemzflquSVmpuom
`
`mw.mE
`
`ocfid
`
`omo.o0.:
`omo.o‘
`oofi.ow
`
`
`
`mmmmemzHAAHEVwagon
`
`Apple V. Corephotonics
`Exhflflt2004
`IPR2018—01146
`
`Exhibit 2004 Page 9 0f 41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 9 of 41
`
`
`

`

`U.S. Patent
`US. Patent
`
`Mar. 12, 2013
`Mar. 12, 2013
`
`Sheet 9 Of 29
`Sheet 9 of 29
`
`US 8,395,851 B2
`US 8,395,851 B2
`
`
`
`
`
`V
`
`v-«N
`4‘!"
`\ gm
`LCD
`
`8
`
`LO
`
`0v
`
`—1
`LO
`
`: 2
`L0
`IID
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 10 0f41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 10 of 41
`
`

`

`U.S. Patent
`U.S. Patent
`
`Mar. 12, 2013
`Diar.12,2013
`
`Sheet 10 of 29
`Sheet100f29
`
`US 8,395,851 B2
`US 8,395,851 B2
`
`
`
`
`
`_,.om.aim__\
`
`_\\3.may:
`
`.\.mI-W;mm2i:Ei:
`
`
`
` zozmiméSEEEEE£583339T3‘g:8;Z02.?______\\\_E.3.9,
`
`22000mmomo
`
`220009wa
`
`
`
`220000.32“
`
`20:22.20
`
`NO I J,\[0], S I (I
`
`u:<zu:m<
`
`
`
`@5550043m
`
`A<720S©704
`
`
`
`2mm;nonmHEmm
`
`
`
`
`
`
`
`
`
`E:.0i_
`
`_
`
`com.Oi
`
`E:.0
`
`omo.0
`
`ed
`
`_ omo.Oi
`
`
`
`AmmmemEqizvmzoom
`
`
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 11 of 41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 11 of 41
`
`
`
`
`
`
`

`

`U.S. Patent
`US. Patent
`
`Mar. 12, 2013
`Mar. 12, 2013
`
`Sheet 11 of 29
`Sheet 11 of 29
`
`US 8,395,851 B2
`US 8,395,851 B2
`
`
`
`
`
`650
`
`II
`
`651 52
`
`Flg6A
`
`co
`
`o
`
`3 WIINIIEEEE
`g E§Eae
`'I_“—“ Hm
`IZ9
`
`3%
`
`H com
`| 89
`
`«:8U3
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 12 of 41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 12 of 41
`
`

`

`U.S. Patent
`
`3
`
`h
`
`f
`
`59
`
`2B1
`
`10w.N|mL\2.,\1i.n/a“R:
`0_2_n_%>F<H.I
`7.x
`S,
`\\xo,ww\o--
`IMrmwwkww9:us_e:uzfi
`
`
`
`
`uflg<zwfikm<q<z_mme_uzoq
`
`
`22ooombmo
`
`220009me
`
`EZooofioww
`
`
`
`
`
`
`
`/
`
`/
`
`
`
`
`
`zo_5moemfiamm>gsoagmfim.mmm<q<o_mmmmw
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`cuo.mm.#0.:m.fiio.mioom.oOOH.Oo.oOofi.oioom.o‘OOH.Oomo.o0.9Dmo.oioo#.oiU__________.L_\n
`
`
`
`“WZOHHMOHmexAmmmemsHAAHSVmsoomAmmmemzfiqqfizvwagon
`
`
`
`
`
`
`
`mmmmm:
`
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 13 of 41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 13 of 41
`
`
`
`
`

`

`U.S. Patent
`US. Patent
`
`Mar. 12, 2013
`Mar. 12, 2013
`
`Sheet 13 Of 29
`Sheet 13 of 29
`
`US 8,395,851 B2
`US 8,395,851 B2
`
`‘_A
`770 ?
`
`760
`
`{vi
`
`M
`
`k
`
`
`
`
`
`710720
`
`700
`
`2‘ 721 722
`/
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 14 0f41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 14 of 41
`
`

`

`U.S. Patent
`
`Mar. 12, 2013
`
`Sheet 14 0f 29
`
`US 8,395,851 B2
`
`
`
`ZZQOOm.o.no
`
`22oooofiwm
`
`22002.03.
`
`
`
`onHmoemHa
`
`H:3:
`
`u:<zw:m<
`
`wm>mzomam:
`
`e:vs:
`
`4542213204
`
`
`
`2mm:A<Bmmmmm
`
`o.m
`
`m;0.0mg m.mI
`
`22,509me
`
`o.m
`
`com.o Amy—EHEESVZEV
`
`IIHEmm
`
`oSded036oomd \.
`
`waver.—
`
`2:.o
`
`omodo5
`omo.o2:.o
`
`
`
`Ammmemzzjzvmzoom
`
`mp.mE
`
`
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 15 of 41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 15 of 41
`
`
`
`

`

`U.S. Patent
`
`Mar. 12, 2013
`
`Sheet 15 Of 29
`
`US 8,395,851 B2
`
`TABLE
`(Embodiment 1)
`f = 5.97 mm, Fino - 2.60. HFOW - 32.9 deg.
`
`Surface #
`
`Curvature Radius
`
`Thickness
`
`Material
`
`Index
`
`Abbe it
`
`Focal
`length
`
`O
`1
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`
`Object
`lens
`
`Ape. Stop
`Lens 2
`
`Lens 3
`
`Lens 4
`
`Lens 5
`
`IR-filter
`
`Plano
`190843 (ASP)
`-20.00000 (ASP)
`Plano
`-12.881 15 (ASP)
`3.73243 (ASP)
`16.32622 (ASP)
`-15.06406 (ASP)
`-2.35597 (ASP)
`-1.57215 (ASP)
`-8.50862 (ASP)
`2.66737(ASP)
`Plano
`
`Plano
`13
`Plano
`Image
`14
`Note: Reference wavelength is d-line 587.6mm
`
`Infinity
`1.012
`0.043
`0.6
`0.300
`0.268
`0.50
`0.861
`0.776
`0.363
`0.814
`0.300
`0.6OO
`
`0.560
`
`Fig.8
`
`Plastic
`
`1.544
`
`55.9
`
`3.25
`
`Plastic
`
`1.650
`
`21.4
`
`-4.42
`
`Plastic
`
`1634
`
`23.8
`
`12.43
`
`Plastic
`
`1530
`
`55.8
`
`6.64
`
`Plastic
`
`1530
`
`55.8
`
`-3.74
`
`Glass
`
`1517
`
`64.2
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 16 of 41
`
`

`

`US. Patent
`
`Mar. 12, 2013
`
`Sheet 16 of 29
`
`US 8,395,851 B2
`
`
`
`
`
` TABLE 2
`
`
`Aspheric Coefficients
`
`Surface #
`1
`2
`4
`5
`6
`
`
`k 2
`0.00000E+00
`-6.45597E+00
`-1.00000E+00
`7.97105E+01
`-1.29025E+00
`
`
`A4 2
`-1.66389E-02
`1.13631E-01
`2.81933E-02
`4.52715E-02
`6.24129E-03
`
`
`A6 2
`-4.94304E-03
`-6.10837E-02
`-4.22722E-03
`-4.92304E-02
`1.43065E-02
`
`
`A8:
`8.35242E-03
`4.80706E-02
`-1.49953E-02
`1.40566E-01
`1.33529E-02
`
`
`A10:
`-4.93193E-03
`-3.02237E-02
`2.77071E-02
`-2.32213E-01
`-3.93269E-02
`
`
`A12:
`2.81583E-03
`1.26150E-02
`-2.32695E-02
`1.83360E-01
`3.86214E-02
`
`
`A14:
`-2.34297E-03
`6.74328E-03
`-5.64345E-02
`-1.30672E—02
`
`
`Surface #
`7
`8
`9
`10
`11
`
`
`
`
`
`
`
`
`
`
`k 2
`0.00000E+00
`1.30143E+00
`-5.83538E+00
`-1.59625E+02
`-1.26377E+01
`
`
`A4 2
`-4.44180E-02
`-1.96924E-03
`-8.82199E-02
`-3.85611E-02
`197517302
`
`
`A6 2
`1.82148E-02
`5.5942513-03
`4.94063E-02
`4.66286E-03
`607770303
`
`
`A8 2
`-2.04966E-02
`-6.01730E-02
`-3.44855E-02
`8.65942E-04
`_1 07712303
`
`
`A10:
`2.00344E-02
`5.62499E-02
`1.20917E-02
`-2.56162E-04
`1041041304
`
`
`A12:
`-5.71641E-03
`-2.33371E-02
`-1.58553E-03
`2.33029E-05
`-5.25801E-06
`
`A14:
`
`3.96482E-03
`
`3.51398E-05
`
`-7.62514E-07
`
`1.15698E-07
`
`
`
`
`
`Fig.9
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 17 0f41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 17 of 41
`
`

`

`U.S. Patent
`
`Mar. 12, 2013
`
`Sheet 17 Of 29
`
`US 8,395,851 B2
`
`TABLE 3
`(Embodiment 2)
`T- 4.18 mm, Fino -2.85. HFOW - 30.4 deg.
`
`Surface it
`
`Curvature Radius
`
`Thickness
`
`Material
`
`Index
`
`Abbe H.
`
`Rh
`
`O
`1
`o
`3.
`4.
`5
`6
`7
`8
`9
`10
`11
`12
`
`Object
`Ape. Stop
`LenSl
`
`Lens 2
`
`Lens 3
`
`Lens 4
`
`Lens 5
`
`IR-filter
`
`Plano
`Plano
`1.8705 (ASP)
`–4.68498 (ASP)
`-4.70828 (ASP)
`5.00258 (ASP)
`25.00000 (ASP)
`-49.41191 (ASP)
`-2.55467 (ASP)
`-0.93639 (ASP)
`-5. 19508 (ASP)
`1.34147 (ASP)
`Plano
`
`Plano
`13
`Plano
`Image
`14
`Note: Reference wavelength is d-line 587.6nm
`
`Infinity
`-OOO
`O.80
`0.191
`O.34
`0.275
`0.402
`0.2O3
`0.785
`0.346
`0.328
`0.700
`0.200
`
`0.421
`
`Plastic
`
`Plastic
`
`Plastic
`
`544
`
`634
`
`634
`
`55.9
`
`2.57
`
`23.8
`
`-3.77
`
`23.8
`
`26.24
`
`Plastic
`
`1544
`
`55.9
`
`2.32
`
`Plastic
`
`1530
`
`55.8
`
`- 1.98
`
`Glass
`
`1517
`
`642
`
`Fig.10
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 18 of 41
`
`

`

`US. Patent
`
`Mar. 12, 2013
`
`Sheet 18 of 29
`
`US 8,395,851 B2
`
`
`
`TABLE 4
`
`
`
`Aspheric Coefficients
`
`Surface #
`2
`3
`4
`5
`6
`
`
`k :
`-l.01926E+0l
`-5.80337E-0l
`-2.38l38E+01
`l.74769E+01
`-4.0 I947E+O3
`
`
`A4 _
`1.67129E-01
`-6.95377E-02
`1.17914E-02
`5.31619E-02
`-1.00771E-01
`
`
`A6 :
`-2.34639E-01
`-9.18655E-03
`-1.31853E-01
`-4.11947E-02
`-1.25426E-01
`
`
`A8:
`2.34793E-01
`-2.64154E-01
`2.87405E-01
`1.23103E-01
`3.92545E-01
`
`
`
`
`
`
`
`
`
`
`A10:
`-2.66465E-01
`4.46931E-01
`-8.14896E-01
`-3.08244E-O1
`-4.57452E-01
`
`
`A12:
`1.71550E-01
`-1.93084E-01
`1.38355E+00
`3.98272E-01
`2.22852E-01
`
`
`A14:
`-1 .02422E-01
`-1 .27654E-01
`-8.67634E-01
`-1.77061E-01
`
`
`Surface #
`7
`8
`9
`10
`11
`
`
`k :
`-3.67729E+02
`2.81708E+00
`-3.51553E+00
`-9.74653E+01
`-8.48520E+00
`
`
`A4 :
`-8.76491E-02
`3.73440E-02
`-7.88445E-02
`-2.76082E-O2
`-6.10515E-02
`
`
`A6 :
`-9.49349E-02
`5.24059E-02
`1.25201E-01
`-2.81786E-02
`1.60396E-02
`
`
`A8 :
`1.40974E-01
`-2.11355E-01
`-1.15377E-01
`1.25521E-02
`—5.61039E—03
`
`
`A10:
`-5.97766E-02
`3.10118E-01
`6.67340E-02
`-7.62292E-04
`1.44854E-03
`
`
`A12:
`1.64299E-02
`-1.69432E-01
`-1.76631E-02
`-2.11164E-04
`-2.23683E-04
`
`
`1.46203E-05
`2.00879E-05
`1.42882E-03
`3.37926E-02
`A14:
`
`
`
`
`
`
`
`
`Fig. 11
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 19 0f41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 19 of 41
`
`

`

`U.S. Patent
`
`Mar. 12, 2013
`
`Sheet 19 Of 29
`
`US 8,395,851 B2
`
`TABLES
`(Embodiment 3)
`f 5.96 mm. Fno 2.66, HFOV 32.5 deg.
`
`Surface #
`
`Curvature Radius Thickness Material
`
`Index
`
`Abbe H. fh
`
`O
`1.
`
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`
`Object
`Lens 1
`
`Plano
`186202 (ASP)
`
`Infinity
`0.921
`
`Ape. Stop
`Lens 2
`
`Lens 3
`
`Lens 4
`
`LenS 5
`
`IR-filter
`
`71.42857 (ASP)
`Plano
`-16.33251 (ASP)
`4.27247 (ASP)
`53.05818 (ASP)
`-45.45455 (ASP)
`-2.43837 (ASP)
`-1.49667 (ASP)
`11.85899 (ASP)
`199755 (ASP)
`Plano
`
`0.093
`0.079
`0.300
`0.302
`0.759
`0.695
`0.679
`0.358
`0.720
`0.500
`0.600
`
`Plano
`13
`Plano
`Image
`14
`Note: Reference wavelength is d-line 587.6nm
`
`0.765
`
`Fig. 12
`
`Plastic
`
`1.544
`
`55.9
`
`3.50
`
`Plastic
`
`1.632
`
`23.4
`
`-5.33
`
`Plastic
`
`1.632
`
`23.4
`
`38.85
`
`Plastic
`
`1.544
`
`55.9
`
`5.68
`
`Plastic
`
`1530
`
`55.8
`
`-4.65
`
`Glass
`
`1517
`
`64.2
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 20 of 41
`
`

`

`US. Patent
`
`Mar. 12, 2013
`
`Sheet 20 of 29
`
`US 8,395,851 B2
`
`
`
`TABLE 6
`
`
`
`Aspheric Coefficients
`Surface #
`1
`2
`4
`5
`6
`
`
`
`k
`:
`-6.04269E+00 -1.00000E+00
`1.49374E+02
`2.27411E+00
`0.00000E+00
`
`
`A4 :
`1.16876E-01
`1.25397E-02
`3.67906E-02
`1.62121E-O2
`-4.51742E-O2
`
`
`A6 :
`-5.92993E-02
`-4.30279E-03
`-4.76674E-02
`1.28570E-02
`1.19679E-02
`
`
`A8:
`4.79861 E-UZ
`-7.933961:'-03
`1.52524E-01
`1.46466E-02
`-2.56720E-02
`
`
`A10:
`—3 .02454E—02
`2.54246E—02
`—2.36662E—01
`—3 .35884E—02
`1.9674OE—02
`
`
`A12:
`1.2721 113-02
`-2.32696E-02
`1.8336013-01
`3.86214E-02
`-5.71645E-O3
`
`
`A14:
`-2.34298E-03
`6.74327E-03
`-5.64345E-02
`-1.30672E-02
`
`Surface #
`7
`8
`9
`10
`11
`
`
`
`
`
`
`
`
`
`
`
`k
`:
`0.00000E+OO 1.21188E+00
`-4.86136E+00
`7.33155E+00
`-7.86030E+00
`
`
`A4 :
`-1.28675E-02
`1.64381 E-OZ
`-8.40473E-02
`-4.17262E-02
`-3.09142E-02
`
`
`A6 :
`-8.71065E-03
`8.75823 E-03
`4.85806E-02
`4.80723 E-O3
`6.43571E-03
`
`
`A8 :
`8.16610E-03
`-5.98349E-02
`-3.46543E-02
`8.72761 E-04
`-1.05026E-03
`
`
`A10:
`-5.24000E-03
`5.63747E-02
`1.21117E-02
`-2.56164E-O4
`1.05142E-O4
`
`
`A12:
`1.57583E-03
`-2.33209E-02
`-1.57508E-03
`2.32646E-05
`-5.28667E-06
`
`
`A14:
`3.96073E-03
`3.67594E-05
`-7.60054E-07
`1.05324E-07
`
`
`
`
`
`
`
`Fig.13
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 21 0f41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 21 of 41
`
`

`

`U.S. Patent
`
`Mar. 12, 2013
`
`Sheet 21 of 29
`
`US 8,395,851 B2
`
`TABLE 7
`(Embodiment 4)
`f = 7.77 mm, Fno = 3.00, HFOV = 24.7 deg.
`
`Surface #
`
`Curvature Radius Thickness Material
`
`Index
`
`Abbe it Rt
`
`O
`
`2
`
`3
`
`4.
`
`5
`
`6
`
`7
`
`8
`9
`10
`11
`12
`
`Object
`Ape. Stop
`
`Lens 1
`
`Lens 2
`
`Lens 3
`
`Lens 4
`
`LenS 5
`
`IR-filter
`
`Plano
`Plano
`
`3.73302
`
`-7.76898
`
`-7.76898
`
`3.93149
`
`5.48567
`
`-15.47289
`
`-1.60829 (ASP)
`-3.10455 (ASP)
`2.16296 (ASP)
`3.15869 (ASP)
`Plano
`
`Infinity
`0.100
`
`1.245
`
`0.010
`
`0.972
`
`0.231
`
`1300
`
`1.267
`
`228
`O.1OO
`1594
`0.900
`0.750
`
`Plano
`13
`Plano
`Image
`14
`Note: Reference wavelength is d-line 587.6nm
`
`1.286
`
`Glass
`
`1699
`
`30.1
`
`3.78
`
`Glass
`
`1847
`
`23.8
`
`2.97
`
`Glass
`
`1.729
`
`54.7
`
`5.70
`
`Plastic
`
`.583
`
`30.2
`
`-8.20
`
`Plastic
`
`514
`
`56.8
`
`8.66
`
`Glass
`
`1517
`
`64.2
`
`Fig.14
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 22 of 41
`
`

`

`U.S. Patent
`
`Mar. 12, 2013
`
`Sheet 22 of 29
`
`US 8,395,851 B2
`
`TABLE 8
`Aspheric Coefficients
`10
`9
`8
`-5.05829E-01 -7.737.98E-01 -3.78126E--OO -3.37349E-00
`
`
`
`7.68326E-O2 8.59.598E-04 || -4.79589E-03
`
`-3.25427E-03
`
`-3.91 21 OE-02 -4.02754E-03
`
`- 145995E-04 -2.95263E-04
`
`49968E-02 | 1.4824E-03
`
`5.35435E-05
`
`3.52525E-05
`
`-2.73067E-03-9.33926E-05 || -4.20266E-06 -.5399E-06
`
`2.0918OE-04 || -4.646.38E-07 | 1.08846E-07
`
`-3.34729E-09
`
`146256E-07 2.26641 E-07 || - 1.57358E-09 | 1.03135E-09
`
`Surface H.
`k =
`
`A4 =
`
`A6 =
`
`A8=
`
`A 10-
`
`Al2=
`
`A 14-
`
`Fig.15
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 23 of 41
`
`

`

`U.S. Patent
`
`Mar. 12, 2013
`
`Sheet 23 Of 29
`
`US 8,395,851 B2
`
`TABLE 9
`(Embodiment 5)
`f– 5.99 mm, Fno - 2.60. HFOV- 32.7 deg.
`
`Surface #
`
`Curvature Radius Thickness Material
`
`Index
`
`Abbe H ft
`
`O
`1
`2
`3
`4
`5
`6
`7
`8
`9
`O
`11
`12
`
`Object
`Lens I
`
`Ape. Stop
`Lens 2
`
`Lens 3
`
`Lens 4
`
`Lens 5
`
`IR-filter
`
`Plano
`1.95504 (ASP)
`-20.83333 (ASP)
`Plano
`|0.52632 (ASP)
`2.08453 (ASP)
`17.24138 (ASP)
`-28.57143 (ASP)
`-2.37806 (ASP)
`-1.55294 (ASP)
`13.69786 (ASP)
`2.26758 (ASP)
`Plano
`
`Infinity
`O.858
`0.049
`O. 102
`O.300
`0.345
`O.386
`O.868
`O. 709
`O.336
`0.929
`0.430
`0.600
`
`Plano
`13
`Plano
`Image
`14
`Note: Re?erence wavelength is d-line 587.6nm
`
`0.837
`
`Fig.16
`
`Plastic
`
`1.544
`
`55.9
`
`3.33
`
`Plastic
`
`I.634
`
`23.8
`
`–4.6
`
`Plastic
`
`1632
`
`23.4
`
`1707
`
`Plastic
`
`530
`
`55.8
`
`6.5
`
`Plastic
`
`530
`
`55.8
`
`-5.28
`
`Glass
`
`1517
`
`64.2
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 24 of 41
`
`

`

`
`
`US. Patent
`
`Mar. 12, 2013
`
`Sheet 24 of 29
`
`US 8,395,851 B2
`
`
`
`
`TABLE 10
`
`
`Aspheric Coefficients
`
`
`
`
`
`
`
`
`
`
`
`
`
` Surface # 1 2 4 5 6
`
`
`k 2
`-6.72431E+00 -1.00000E+00
`-4.41316E+02
`-3.70888E+00
`0.00000E+00
`
`
`A4 2
`1.14007E-01
`3.09602E-O2
`1.76473E-02
`-4.94308E-03
`-2.25745E-02
`
`
`A6 2
`-5.94949E-02
`-5.16266E-03
`-6.20463 E-02
`3.43663 E-02
`1.84918E-02
`
`A8:
`
`4.90049E-02
`
`-1.03906E-02
`
`1.64560E-01
`
`1 .25517E-02
`
`-2.20754E-02
`
`
`A10:
`-3.09390E-02
`2.69969E-02
`-2.45121E-01
`-4.29398E-02
`2.24024E-02
`
`
`A12:
`1.33299E-02
`-2.32688E-02
`1.83368E-01
`3.86261E-02
`-5.71696E-03
`
`
`A14:
`-2.34567E-03
`6.74233E-O3
`-5.64345E-02
`-1.30660E-02
`
`
`
`
`k 2
`0.00000E+00
`1.13235E+00
`-4.81542E+00
`9.78323E+00
`-8.61568E+00
`
`
`A4 2
`-2.51528E-03
`2.34865E-02
`-8.31603E-02
`-4.07448E-02
`-3.22872E-02
`
`
`A6 2
`-8.65553E-03
`8.28795E-03
`4.93272E-02
`4.68578E-03
`6.20067E-03
`
`
`A8 2
`9.00514E-03
`-5.98871E-02
`-3.45791E-02
`8.69728E-04
`-1.05063E-03
`
`
`A10:
`-4.20180E-03
`5.62668E-02
`1.20600E-02
`-2.56140E-04
`1.05504E-04
`
`
`A12:
`2.30548E-03
`-2.32865E-02
`-1.58734E-03
`2.33152E-05
`-5.24202E-06
`
`
`A14:
`3.99138E-03
`3.73609E-05
`-7.60242E-07
`1.05715E-07
`
`Fig.17
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 25 0f41
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
` Surface # 7 8 9 10 11
`
`
`
`
`
`
`
`
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 25 of 41
`
`

`

`U.S. Patent
`
`Mar. 12, 2013
`
`Sheet 25 Of 29
`
`US 8,395,851 B2
`
`TABLE
`(Embodiment 6)
`f 5.77 mm. Fino - 2.90. HFOV - 31.3 deg.
`
`Surface H.
`
`Curvature Radius | Thickness Material
`
`Index
`
`Abbe H. Rh
`
`O
`1
`
`2
`3
`4.
`5
`6
`7
`8
`9
`10
`11
`2
`
`Object
`Ape. Stop
`
`Lens 1
`
`Lens 2
`
`Lens 3
`
`Lens 4
`
`Lens 5
`
`IR-filter
`
`Plano
`Plano
`
`Infinity
`-O.300
`
`1.57249 (ASP)
`7.46270 (ASP)
`12.52440 (ASP)
`2.88945 (ASP)
`8.77190 (ASP)
`-i 3.81220 (ASP)
`-1.43 135 (ASP)
`-1.85247 (ASP)
`2.49539 (ASP)
`1.76590 (ASP)
`Plano
`
`0.587
`(). 20
`0.280
`0.446
`0.367
`O428
`0.678
`0.7 O
`0.519
`1.OOO
`O3OO
`
`Plano
`13
`Plano
`Image
`4
`Note: Reference wavelength is d-line 587.6nm
`
`0.421
`
`Plastic
`
`1.544
`
`55.9
`
`3.54
`
`Plastic
`
`1634
`
`23.8
`
`-5.99
`
`Plastic
`
`1634
`
`23.8
`
`8.52
`
`Plastic
`
`1.544
`
`55.9
`
`-26.74
`
`Plastic
`
`1.544
`
`55.9
`
`-14.82
`
`Glass
`
`517
`
`64.2
`
`Fig.18
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 26 of 41
`
`

`

`
`
`
`
`
`k :
`3.00715E-01
`-1.00000E+00
`-1.00000E+00
`5.74469E+00
`-1.00000E+00
`
`
`A4 =
`-1.36010E-02 -4.82768E-02
`-4.89104E-02
`-3.42694E-02
`-6.96516E-02
`
`
`A6 :
`1.88677E-03
`9.88166E-03
`6.93453 E-02
`5.86640E-02
`-6.48466E-03
`
`
`A8:
`-3.00843 E-02 -1.07830E-02
`-2.50560E-02
`-3.27558E-02
`-4.55 l 82E-02
`
`
`A10:
`3 .03 026E-02
`-6.27845E-03
`2.49098 E-02
`5.52035E-02
`1.90496E-02
`
`
`A12:
`-2.86623E-02
`-1.10116E-03
`
`
`A14:
`4.26036E-03
`
`
`A16:
`-8.35665E-04
`
`Surface #
`7
`8
`9
`10
`11
`
`
`
`
`
`
`US. Patent
`
`Mar. 12, 2013
`
`Sheet 26 of 29
`
`US 8,395,851 B2
`
`
`
`
`
` TABLE 12
`
`
`Aspheric Coefficients
`Surface #
`2
`3
`4
`5
`6
`
`
`
`
`
`
`
`k :
`-1.00000E+00 -1.00000E+00
`-1.00000E+00
`-2.82242E+00
`-4.48677E+00
`
`
`A4 :
`4.91329E-04
`1.62369E-01
`1.08237E-01
`-5.36878E-02
`-4.21203E-02
`
`
`A6 =
`-3.74303 E-02 -3.90923E-02
`-1.99190E-02
`1.15354E-02
`9.55421E-03
`
`
`A8 2
`2.26693 E-02
`-3.40997E-03
`1.73036E-03
`-1.33549E-03
`-1.62818E-03
`
`
`A10:
`-9.02333E-03
`9.93691E-03
`-7.54713E-04
`3.83965E-05
`1.53762E-04
`A12:
`-5.38061E-03
`9.42030E-05
`-7.77834E-06
`
`Fig.19
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 27 0f41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 27 of 41
`
`

`

`U.S. Patent
`
`Mar. 12, 2013
`
`Sheet 27 Of 29
`
`US 8,395,851 B2
`
`TABLE 13
`(Embodiment 7)
`f = 5.68 mm, Fno = 2.90. HFOV = 3.8 deg.
`
`Surface #
`
`Curvature Radius Thickness Material
`
`Index
`
`Abbe H. fh
`
`O
`1.
`
`2
`3
`4
`5
`6
`7
`8
`9
`10
`11
`12
`
`Object
`Ape. Stop
`
`Lens 1
`
`LenS 2
`
`Lens 3
`
`Lens 4
`
`Lens 5
`
`IR-filter
`
`Plano
`Plano
`
`Infinity
`-0.310
`
`1.56716 (ASP)
`7.15810 (ASP)
`-9. 16410 (ASP)
`6.31 100 (ASP)
`6.55740 (ASP)
`-13.81220 (ASP)
`-146359 (ASP)
`-2.68137 (ASP)
`2.8.1014 (ASP)
`2.70932 (ASP)
`Plano
`
`0.651
`0.2O2
`0.30
`0.338
`0.404
`0.480
`0.415
`0.538
`0.891
`1.000
`0.300
`
`Plano
`13
`Plano
`Image
`14
`Note: Reference wavelength is d-line 587.6nm
`
`0.505
`
`Plastic
`
`1.544
`
`55.9
`
`3.54
`
`Plastic
`
`1.650
`
`21.4
`
`-5.7
`
`Plastic
`
`1634
`
`23.8
`
`7.07
`
`Plastic
`
`1.544
`
`55.9
`
`-6.73
`
`Plastic
`
`1544
`
`55.9
`
`6564
`
`Glass
`
`1517
`
`64.2
`
`Fig.20
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 28 of 41
`
`

`

`US. Patent
`
`Mar. 12, 2013
`
`Sheet 28 of 29
`
`US 8,395,851 B2
`
`
`
`TABLE 14
`
`
`
`Aspheric Coefficients
`
`Surface #
`2
`3
`4
`5
`6
`
`
`
`k 2
`3.14989E-01
`-1.00000E+00
`-1.00000E+00
`7.47792E+00
`-1.00000E+00
`
`
`A4 2
`-1.45943E-02 -4.36246E-02
`-3.46750E-02
`-7.24921E-03
`-7.30989E-02
`
`
`A6 2
`2.51229E-03
`5.06206E-03
`8.12954E-02
`8.78318E-02
`-7.18434E-03
`
`
`A8:
`-2.76427E-02 -6.45944E-03
`-2.40776E-02
`-3 .36780E-02
`-3.41401E-02
`
`
`A10:
`2.93304E-02
`-7.02871E-03
`1.17393 E-02
`6.84131E-02
`2.94471 E-02
`
`
`A12:
`-2.40643E-02
`-1.32433E-03
`
`
`A14:
`4.21431E-03
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`A16:
`-8.61338E-04
`
`Surface #
`7
`8
`9
`10
`11
`
`
`
`k 2
`-1.00000E+00 -1.00000E+00
`-1.00000E+00
`-3.94297E+00
`-3.00249E+00
`
`
`A4 2
`-9.14692E-03
`1.58108E-01
`9.64363 E-02
`-5.40712E-02
`-4.85344E-02
`
`
`A6 2
`-3.27688E-02 -4.56864E-02
`-2.04114E-02
`1.13895E-02
`9.57948E-03
`
`
`A8 2
`2.45302E-02
`-3.04393E-03
`1.52333E-03
`-1.36312E-03
`-1.60658E-03
`
`
`A10:
`-6.40856E-03
`1.13 814E-02
`-7.82809E-04
`4.08467E-05
`1.56077E-04
`A12:
`-5.44455E-03
`1.23183E-04
`-7.98217E-06
`
`
`Fig.21
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 29 0f41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 29 of 41
`
`

`

`U.S. Patent
`U.S. Patent
`
`Mar. 12, 2013
`Diar.12,2013
`
`Sheet 29 Of 29
`Sheet290f29
`
`US 8,395,851 B2
`US 8,395,851 B2
`
`
`
`
`
`
`
`gum“;
`
`ZZ ‘? ? ?
`
`Apple V. Corephotonics
`Exhibit 2004
`IPR2018—01146
`
`Exhibit 2004 Page 30 0f 41
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 30 of 41
`
`

`

`1.
`OPTICAL LENS SYSTEM
`
`US 8,395,851 B2
`
`2
`is TTL; and they satisfy the following relations: 0.00<f7
`f3<1.90, and 0.7<SL/TTL-1.2.
`Moreover, the present invention provides an optical lens
`system comprising, in order from an object side to an image
`side: a first lens element with positive refractive power having
`a convex object-side surface; a second lens element with
`negative refractive power; a third lens element with positive
`refractive power having a convex object-side Surface and a
`convex image-side Surface; a fourth lens element with posi
`tive refractive power; and a fifth lens element with negative
`refractive power having a concave image-side Surface, both of
`the object-side and image-side Surfaces thereof being
`aspheric and at least one inflection point being formed on the
`image-side surface, wherein the optical lens system is further
`provided with a stop disposed between an object and the third
`lens element, and an electronic sensor disposed at an image
`plane for the image formation of the object; a focal length of
`the optical lens system is f: a focal length of the first lens
`element is fl; a distance on an optical axis between the stop
`and the electronic sensor is SL, a distance on the optical axis
`between the object-side surface of the first lens element and
`the electronic sensor is TTL; and they satisfy the following
`relations: 1.00<f/fl-2.30, and 0.7<SL/TTL<1.2.
`Such arrangement of optical elements can effectively mini
`mize the size of the optical lens system, lower the sensitivity
`of the optical system, and obtain higher image resolution.
`In an optical lens system of the present invention, the first
`lens element with positive refractive power provides the posi
`tive refractive power of the opticallens system; this allows the
`total track length of the optical lens system to be favorably
`reduced. The second lens element has negative refractive
`power; this allows aberrations produced by the first lens ele
`ment, as well as chromatic aberrations of the optical lens
`system, to be effectively corrected. The third lens element
`with positive refractive power effectively distributes the
`refractive power of the first lens element, thereby reducing the
`sensitivity of the optical lens system. The fourth lens element
`and the fifth lens element may have positive or negative
`refractive power. When the fourth lens element has positive
`and the fifth lens element has negative refractive power, they
`will form a telephoto structure with one positive and one
`negative refractive power. This allows the back focal length of
`the optical lens system to be favorably reduced, thereby
`reducing the total track length.
`In an optical lens system of the present invention, the first
`lens element may be a bi-convex lens element or a meniscus
`lens element having a convex object-side Surface and a con
`cave image-side surface. When the first lens element is a
`bi-convex lens element, the refractive power of the first lens
`element can be effectively distributed, thereby reducing the
`total track length of the optical lens system. When the first
`lens element is a meniscus lens element, the astigmatism of
`the optical lens system can be favorably corrected. The sec
`ond lens element has a concave object-side Surface; this
`allows the back focal length of the optical lens system to be
`extended favorably, so that there will be sufficient space to
`accommodate other components in the optical lens system.
`Preferably, the second lens element has a concave object-side
`Surface and a concave image-side Surface; this allows the
`Petzval sum of the optical lens system to be effectively cor
`rected, and moreover, the back focal length of the optical lens
`system can be extended favorably to have sufficient space for
`accommodating other components in the optical lens system.
`The third lens element has a convex object-side surface and a
`convex image-side Surface; this enhances the positive refrac
`tive power of the third lens element so that the refractive
`power of the first lens element can be effectively distributed,
`
`CROSS-REFERENCE TO RELATED PATENT
`APPLICATION
`
`This non-provisional application claims priority under 35
`U.S.C. S 119(a) on Taiwanese Patent Application No(s).
`099133981 filed in Taiwan, R.O.C., on Oct. 6, 2010, the entire
`contents of which are hereby incorporated by reference.
`
`10
`
`BACKGROUND OF THE INVENTION
`
`15
`
`25
`
`30
`
`1. Field of the Invention
`The present invention relates to an optical lens system, and
`more particularly, to a compact optical lens system used in a
`portable electronic product.
`2. Description of the Prior Art
`In recent years, due to the popularity of portable electronic
`products with photographing functions, the demand for a
`compact imaging lens system is increasing, and the sensor of
`a general photographing camera is none other than CCD
`(Charge-coupled Device) or CMOS device (Complementary
`Metal-oxide-semiconductor Device). Furthermore, as
`advances in semiconductor manufacturing technology have
`allowed the pixel size of sensors to be reduced, and the reso
`lution of a compact imaging lens system has gradually
`increased, there is an increasing demand for a compact imag
`ing lens system featuring better image quality.
`A conventional compact imaging lens system used in a
`portable electronic product generally comprises four lens
`elements, such as the one disclosed in U.S. Pat. No. 7.365,
`920. However, as Smartphones, PDAs or other high-end
`mobile devices are gaining popularity, the demand for a com
`pact imaging lens system which features even more pixels
`35
`and even better image quality is also rising. A conventional
`lens system comprising four lens elements became insuffi
`cient for high-end imaging modules; meanwhile, electronic
`products are becoming more and more powerful yet featuring
`a compact design. Therefore, there is an increasing demand
`for an optical lens system which can be used in portable,
`compact electronic products with higher image quality while
`having a moderate total track length.
`Therefore, a need exists in the art for an optical lens system
`featuring a simple manufacturing process and better image
`quality.
`
`40
`
`45
`
`SUMMARY OF THE INVENTION
`
`The present invention provides an opticallens system com
`50
`prising, in order from an object side to an image side: a first
`lens element with positive refractive power having a convex
`object-side Surface; a second lens element with negative
`refractive power; a third lens element with positive refractive
`power having a convex object-side Surface and a convex
`image-side Surface; a fourth lens element; and a fifth lens
`element having a concave image-side Surface, the object-side
`and image-side Surfaces thereof being aspheric and at least
`one inflection point being formed on the image-side Surface,
`wherein the opticallens system is further provided with a stop
`disposed between an object and the third lens element, and an
`electronic sensor disposed at an image plane for the image
`formation of the object; a focal length of the optical lens
`system is f; a focal length of the third lens element is f3; a
`distance on an optical axis between the stop and the electronic
`sensoris SL, a distance on the optical axis between the object
`side surface of the first lens element and the electronic sensor
`
`60
`
`65
`
`55
`
`Apple v. Corephotonics
`Exhibit 2004
`IPR2018-01146
`
`Exhibit 2004 Page 31 of 41
`
`

`

`US 8,395,851 B2
`
`5
`
`10
`
`15
`
`3
`thereby reducing the total track length and lowering the sen
`sitivity of the optical lens system. The fourth lens element
`may have a concave object-side Surface and a convex image
`side Surface; this allows the astigmatism of the optical lens
`system to be corrected favorably. The fifth lens element has a
`concave image-side Surface; this allows the principal point of
`the optical lens system to be placed away from the image
`plane, thereby reducing the total track length favorably and
`minimizing the optical lens system.
`In an optical lens system of the present invention, the stop
`may be disposed between the object and the first lens element,
`between the first lens element and the second lens element, or
`between the second lens element and the third lens element.
`With the first lens element providing positive refractive power
`and by placing the stop close to the object, the total track
`length of the optical lens system can be effectively reduced.
`The aforementioned arrangement also enables the exit pupil
`of the optical lens system to be positioned far away from the
`image plane; thus, light will be projected onto the electronic
`sensor at a nearly perpendicular angle, and this is the telecen
`tric feature of the image side. The telecentric feature is very
`important to the photosensitive ability of the current solid
`state sensor because it can improve the photosensitivity of the
`sensor to reduce the probability of shading occurrences. In
`addition, the image-side Surface of the fifth lens element can
`be provided with an inflection point; as