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Image capture lens

A lens and solid-state shooting technology, applied in the field of shooting lenses, can solve problems such as not being able to obtain sufficient performance

Active Publication Date: 2013-03-20
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shooting lens used in this high-definition shooting element requires high resolution, but the resolution has a limit due to the F value. Because the bright lens with a small F value can obtain high resolution, it is currently at the level of F2.8 Full performance cannot be obtained on the F-value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0123] The following represent the overall various elements of the shot.

[0124] f=4.67mm

[0125] fB=0.66mm

[0126] F=1.6

[0127] 2Y=7.128mm

[0128] ENTP=0.57mm

[0129] EXTP=-4.07mm

[0130] H1=0.62mm

[0131] H2=-4.01mm

[0132] The surface data of the shooting lens are shown below.

[0133]

[0134] Additionally, all lenses are formed of plastic material.

[0135] The aspheric coefficients are shown below.

[0136] second side

[0137] K=0.15565E-02, A4=0.29538E-02, A6=-0.29632E-02, A8=-0.46862E-03,

[0138] A10=0.55858E-03, A12=-0.19525E-03

[0139] third side

[0140] K=-0.50000E+02, A4=-0.97019E-02, A6=0.13535E-01, A8=-0.10035E-01, A10=0.27070E-02, A12=-0.33166E-03

[0141] fifth side

[0142] K=-0.63639E+01, A4=-0.10314E-01, A6=0.85848E-02, A8=-0.55201E-02, A10=0.11529E-02, A12=-0.16212E-03

[0143] sixth side

[0144] K=-0.33615E+01, A4=-0.80437E-02, A6=0.20540E-02, A8=-0.10884E-02, A10=-0.20540E-03, A12=-0.25562E-03

[0145] seventh side

[0...

Embodiment 2

[0172] The following represent the overall various elements of the shot.

[0173] f=4.67mm

[0174] fB=0.41mm

[0175] F=2.0

[0176] 2Y=7.128mm

[0177] ENTP=0.58mm

[0178] EXTP=-3.47mm

[0179] H1 = -0.38mm

[0180] H2=-4.26mm

[0181] The surface data of the shooting lens are shown below.

[0182]

[0183] Additionally, all lenses are formed of plastic material.

[0184] The aspheric coefficients are shown below.

[0185] second side

[0186] K=-0.38280E+00, A4=0.95493E-03, A6=-0.10642E-02, A8=-0.33932E-02, A10=0.22394E-02, A12=-0.96054E-03

[0187] third side

[0188] K=-0.50000E+02, A4=-0.24570E-01, A6=0.46239E-01, A8=-0.47052E-01, A10=0.20699E-01, A12=-0.39872E-02

[0189] fifth side

[0190] K=-0.35321E+02, A4=-0.17573E-01, A6=0.36210E-01, A8=-0.26314E-01, A10=0.98134E-02, A12=-0.13648E-02

[0191] sixth side

[0192] K=-0.60810E+01, A4=0.11713E-02, A6=0.10770E-01, A8=-0.44240E-02, A10=0.79769E-04, A12=-0.14811E-03

[0193] seventh side

[0194] K=0...

Embodiment 3

[0220] The following represent the overall various elements of the shot.

[0221] f=4.67mm

[0222] fB=0.5mm

[0223] F=2.0

[0224] 2Y=7.128mm

[0225] ENTP=0.5mm

[0226] EXTP=-3.74mm

[0227] H1=0.03mm

[0228] H2=-4.17mm

[0229] The surface data of the shooting lens are shown below.

[0230]

[0231] Additionally, all lenses are formed of plastic material.

[0232] The aspheric coefficients are shown below.

[0233] second side

[0234] K=-0.55270E+00, A4=-0.39988E-04, A6=-0.12388E-04, A8=-0.34779E-02, A10=0.22907E-02, A12=-0.92168E-03

[0235] third side

[0236] K=-0.50000E+02, A4=-0.32660E-01, A6=0.47584E-01, A8=-0.46232E-01, A10=0.20627E-01, A12=-0.42392E-02

[0237] fifth side

[0238] K=-0.15669E+02, A4=-0.19361E-01, A6=0.32629E-01, A8=-0.27174E-01, A10=0.95500E-02, A12=-0.17348E-02

[0239] sixth side

[0240] K=-0.59448E+01, A4=-0.18891E-02, A6=0.72199E-02, A8=-0.57825E-02, A10=0.36422E-04, A12=-0.40598E-03

[0241] seventh side

[0242] K=0.14...

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Abstract

Provided is a six-layer configuration image capture lens that is compact and has adequate light at F2 or less, and wherein all aberrations are effectually corrected. In order from the object side, the image capture lens is configured of a first lens having a positive refraction and with a convex face oriented toward the object side; a second lens having a negative refraction and with a concave face oriented toward the imaging side; a third lens having either a positive or a negative refraction; a fourth lens having a positive refraction; a fifth lens having a positive refraction and with a convex face oriented toward the imaging side; and a sixth lens having a negative refraction and with a concave face oriented toward the imaging side. The imaging side face of the sixth lens further comprises an aspherical face shape, has an inflection point in a location other than a point of intersection with the optical axis, and satisfies the following formulae: ? d1 > 50, and ? d2 = 30, wherein ? d1 is the Abbe's number of the first lens, and ? d2 is the Abbe's number of the second lens.

Description

technical field [0001] The present invention relates to an imaging device suitable for using a solid-state imaging element such as a CCD image sensor or a CMOS image sensor, and a small and bright imaging lens. Background technique [0002] In recent years, with the popularization of portable terminals equipped with imaging devices using solid-state imaging devices such as CCD image sensors and CMOS image sensors, devices equipped with high-pixel count devices to obtain higher-quality images have been supplied to the market. Portable terminal of the imaging device of the imaging element. Along with the increase in the size of imaging elements having a high number of pixels, in recent years, the resolution of pixels has progressed, and the imaging elements have been reduced in size. The shooting lens used in this high-definition shooting element requires high resolution, but the resolution has a limit due to the F value. Because the bright lens with a small F value can obtai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B9/62H04N5/335G02B13/22G02B13/0045G02B3/04G02B13/00G02B13/18H04N25/00
Inventor 佐野永悟
Owner KONICA MINOLTA INC
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