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Imaging system, imaging apparatus, portable terminal apparatus, onboard apparatus, medical apparatus and method of manufacturing the imaging system

A technology of camera system and camera lens, applied in the parts, transportation and packaging of TV system, optical observation device and other directions, can solve the problems of air interval error, lens shape error, positioning error, etc., to achieve the effect of improving quality

Active Publication Date: 2009-07-01
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, there are many reasons why the resolution of the image represented by the image data output from the imaging system decreases. For example, considering the shape error of each lens constituting the imaging lens (lens Surface shape error, thickness error, decentering error), imaging lens assembly, adjustment error (lens offset error, tilt error, air gap error between lenses), positioning error of imaging element to imaging lens, etc.
Therefore, there is a problem that huge costs are incurred in order to regenerate an imaging system capable of generating high-quality image data capable of forming an image with a predetermined resolution by identifying the cause of the decrease in resolution and performing readjustment or reassembly.

Method used

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  • Imaging system, imaging apparatus, portable terminal apparatus, onboard apparatus, medical apparatus and method of manufacturing the imaging system
  • Imaging system, imaging apparatus, portable terminal apparatus, onboard apparatus, medical apparatus and method of manufacturing the imaging system
  • Imaging system, imaging apparatus, portable terminal apparatus, onboard apparatus, medical apparatus and method of manufacturing the imaging system

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Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0100] figure 1 It is a block diagram showing a schematic configuration of the imaging system according to the first embodiment of the present invention.

[0101] [About the structure of the camera system]

[0102] The configuration of the imaging system of the first embodiment will be described below.

[0103] figure 1 The shown imaging system 100 of the present invention has: imaging lens 10; The optical image P1 of the subject is taken, and the first image data G1 representing the subject is outputted; 20. Restoration processing of the second image data G2 equivalent to the output first image data G1.

[0104] The imaging lens 10 has in order from the subject side (object side): a first lens group consisting of at least one lens and having positive refractive power; and a first lens group consisting of at least one lens and having positive refractive power. the second lens group.

[0105] The imaging lens 10 and the imaging lens element 20 are configured so that the p...

no. 2 Embodiment approach

[0197] Figure 11 It is a block diagram showing a schematic configuration of an imaging system according to a second embodiment of the present invention.

[0198] [About the structure of the camera system]

[0199] The configuration of the imaging system of the second embodiment will be described below.

[0200] Figure 11 The shown imaging system 200 of the present invention has: imaging lens 10; Take the optical image P1 of the object, and output the first image data G1 representing the object; the coefficient storage unit 30, the maximum diameter of the effective area of ​​the point image projected onto the light receiving surface 21 by the imaging lens 10 is related to 3 pixels When the above size is exceeded, the restoration coefficient K corresponding to the blurred state of the point image P1 represented by the first image data G1 output from the imaging element 20 is stored; and the signal processing unit 40 utilizes the restoration coefficient K stored in the coeff...

Embodiment 1

[0301] Embodiment 1 (two lenses)

[0302] face number Ri Di Ndj vdj Aperture stop ∞ 0.150 1* 0.992 0.597 1.53105 55.56 2* 1.465 0.859 3* 1.571 0.623 1.53105 55.5 4* 1.860 0.567 5 ∞ 0.300 1.51680 64.2 6 ∞ 0.430 Image surface ∞ 0.000

[0303] Focal length 3.011

[0304] F-value 4.0

[0305] [Table 2]

[0306] Embodiment 1 (two lenses)

[0307] face number K A3 A4 A5 A6 1

2 -8.10154480

-32.62857110 -0.04801866

0.20192561 1.58637650

-0.04485772 -3.08787130

3.33250150 2.99284350

-5.14303230

[0308] 3

4 0.85130150

0.90619780 0.14688718

0.05780352 -0.46322196

-0.09935381 0.18879620

-0.09135401 0.34643314

0.12084680

[0309] face number A7 A8 A9 A10 A11 1

2

3

4 3.85037010

-6.51213830

-0.49611834

-0.00513791 -9.07367540

6.39789450

0.12958528

-0.09143799 -4...

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Abstract

An imaging system is provided and includes an imaging lens and an imaging device such that the maximum diameter of an effective region of a point image covers three or more pixels of light receiving pixels, the point image (P1) being projected onto a light receiving surface (21) through the imaging lens (10) from an intended position. A signal processing unit (40) executes restoration processing on first image data output from the imaging device (20), and the restoration processing is executed to generate second image data equivalent to the first image data output from the imaging device (20) when the resolving power of the imaging lens is higher. The imaging lens (10) has a first lens group having a positive power, and a second lens group having a positive power, in order from the object side.

Description

technical field [0001] The present invention relates to an imaging system that improves the quality of image data obtained by capturing an optical image of a subject by restoration processing, a method for manufacturing the imaging system, an imaging device, a portable terminal device, an in-vehicle device, and a medical device including the imaging system. Background technique [0002] There is known an imaging system that captures an optical image of a subject formed on the light receiving surface by an imaging lens using an imaging element such as a CCD element or a CMOS element having a light receiving surface constituted by arranging a plurality of light receiving pixels two-dimensionally. [0003] In addition, as an example of such an imaging system, a vehicle-mounted camera or a camera for a mobile phone (also called a mobile phone) is known in which an imaging system having an imaging lens designed to increase the depth of field is directly mounted on a circuit board ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N3/15G02B7/02B60R1/00G02B13/00G02B13/18G02B23/24G02B23/26H04N5/232
CPCG02B13/004
Inventor 谷山实米山一也
Owner FUJIFILM CORP