CN1790086A - Camera lens assembly - Google Patents

Camera lens assembly Download PDF

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Publication number
CN1790086A
CN1790086A CN 200410098580 CN200410098580A CN1790086A CN 1790086 A CN1790086 A CN 1790086A CN 200410098580 CN200410098580 CN 200410098580 CN 200410098580 A CN200410098580 A CN 200410098580A CN 1790086 A CN1790086 A CN 1790086A
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Prior art keywords
eyeglass
photographic lens
focal length
prismatic glasses
lens group
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CN 200410098580
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Chinese (zh)
Inventor
野田小百合
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Largan Precision Co Ltd
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Largan Precision Co Ltd
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Application filed by Largan Precision Co Ltd filed Critical Largan Precision Co Ltd
Priority to CN 200410098580 priority Critical patent/CN1790086A/en
Publication of CN1790086A publication Critical patent/CN1790086A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a photographic lens group, which comprises the following parts: open-type aperture, the first lens, second lens and third lens, wherein the structure improvement of the first, second and third lens inhibits the lens group ability to reduce the bias sensitivity. The invention displays good difference-receiving augmenting effect, which can satisfy the market need.

Description

The photographic lens group
Technical field
The present invention is a kind of photographic lens group, and it is utilization one open type aperture, first eyeglass, second eyeglass, the prismatic glasses configuration person of forming, and allows core shift susceptibility of the present invention effectively alleviate, and has good receipts difference revisal effect.
Background technology
Because phtographic lens is more and more extensive in the utilization scope in modern times, particularly mobile phone product on the market more indispensability camera function is arranged.All can organize into solid-state image pickup sub-prime and photographic lens (for example: CCD Senser or CMOS Sensor) among the at present general mobile phone, but along with the miniaturization and the high-performance need for exhibition of solid-state image pickup sub-prime and photographic lens, the photographic lens group among the product also is required miniaturization relatively, improves performance; It is urgent gradually so the exploitation of photographic lens group is popularized along with the photography mobile phone, mobile phone with high-effect photographic lens group more becomes production firm's most important selling point when competition, therefore, how to develop the photographic lens group that more meets user's demand and become the industry emphasis in when research and development.
For example TOHKEMY 2004-4566 patent documentation commonly use product, it has put down in writing the photographic lens group of using 3 miniaturization eyeglasses combinations, and from object side is in regular turn:
1. open type aperture;
2. two curve forms, first eyeglass of the positive refracting power of tool;
3. tool is born second eyeglass of refracting power, and its homologue side is towards concave surface;
4. the homologue side is towards the prismatic glasses of convex surface (meniscus flexion shape);
Problem in the above-mentioned existing product configuration is: when first eyeglass was two curve forms, the ability of first eyeglass (POWER) was strong excessively; Simultaneously, negative refracting power second eyeglass (negative LENS) must carry out the receipts difference revisal that this first eyeglass is crossed strong ability, therefore the ability (POWER) of second eyeglass also must be eager to excel, and each eyeglass ability (POWER) words of grow one by one, the core shift susceptibility of this photographic lens group integral body will uprise, and influences the work effect of photographic lens group.
In order effectively to solve aforementioned issues associated, research and development technology and experience that creator of the present invention was accumulated in the optical mirror slip field based on the past, set about from the market demand angle of small goodsization, develop finally and the photographic lens group that can effectively alleviate the core shift susceptibility, its architectural feature is as follows:
A kind of photographic lens group includes open type aperture, first eyeglass, second eyeglass, prismatic glasses, and by corresponding object end alignment arrangements in regular turn, its improvement is:
This first eyeglass is planoconvex lens or the positive flexion eyeglass of object side towards convex surface;
This second eyeglass, one side is a flexion face aspherical shape at least, it is the negative flexion eyeglass that corresponding imaging side direction convex surface;
This prismatic glasses, one side is a flexion face aspherical shape at least, it is the positive flexion eyeglass of homologue side towards convex surface.
Summary of the invention
First purpose of the present invention provides a kind of photographic lens group that can effectively alleviate the core shift susceptibility, the present invention disposes open type aperture, first eyeglass, second eyeglass and prismatic glasses in regular turn, and utilize first eyeglass, second eyeglass and prismatic glasses structural improvement to suppress its ability, and allow core shift susceptibility of the present invention effectively alleviate, and has good receipts difference revisal effect.
Relevant the present invention is that to reach the technical scheme that above-mentioned purpose adopts as follows: a kind of photographic lens group, include open type aperture, first eyeglass, second eyeglass, prismatic glasses, and by corresponding object end alignment arrangements in regular turn, its improvement is: this first eyeglass is planoconvex lens or the positive flexion eyeglass of object side towards convex surface; This second eyeglass, one side is a flexion face aspherical shape at least, it is the negative flexion eyeglass that corresponding imaging side direction convex surface; This prismatic glasses, one side is a flexion face aspherical shape at least, it is the positive flexion eyeglass of homologue side towards convex surface.
The focal length of this first eyeglass is f 1, prismatic glasses focal length be f 3The time, it satisfies 0.9＜f 3/ f 1＜2.7 conditional.
The synthetic focal length of complete series eyeglass is f, and the thickness of second eyeglass is d 2The time, satisfy 5.0＜f/d 2＜11.0 conditional.
The radius-of-curvature of the object side of this prismatic glasses is R 31, prismatic glasses the radius-of-curvature of imaging side be R 32The time, satisfy 1.0＜R 32/ R 31＜7.0 conditional.
The synthetic focal length f of this second eyeglass and prismatic glasses 23, the synthetic focal length of eyeglass complete series is f, satisfy f＜| f 23|＜0.4 conditional.
This photographic lens group includes open type aperture, first eyeglass, second eyeglass, prismatic glasses, parallel plane sheet and knot image planes, and by corresponding object end alignment arrangements in regular turn.
The radius-of-curvature of the object side of this prismatic glasses is R 31, prismatic glasses the radius-of-curvature of imaging side be R 32The time, satisfy 1.0＜R 32/ R 31＜7.0 conditional.
The synthetic focal length of complete series eyeglass is f, and the thickness of second eyeglass is d 2The time, satisfy 5.0＜f/d 2＜11.0 conditional.
The synthetic focal length f of this second eyeglass and prismatic glasses 23, the synthetic focal length of eyeglass complete series is f, satisfy f＜| f 23|＜0.4 conditional.
The synthetic focal length f of this second eyeglass and prismatic glasses 23, the synthetic focal length of eyeglass complete series is f, satisfy f＜| f 23|＜0.4 conditional.
The synthetic focal length f of this second eyeglass and prismatic glasses 23, the synthetic focal length of eyeglass complete series is f, satisfy f＜| f 23|＜0.4 conditional; The focal length of this first eyeglass is f 1, prismatic glasses focal length be f 3The time, it satisfies 0.9＜f 3/ f 1＜2.7 conditional; The synthetic focal length of complete series eyeglass is f, and the thickness of second eyeglass is d 2The time, satisfy 5.0＜f/d 2＜11.0 conditional; The radius-of-curvature of the object side of this prismatic glasses is R 31, prismatic glasses the radius-of-curvature of imaging side be R 32The time, satisfy 1.0＜R 32/ R 31＜7.0 conditional.
This first eyeglass, second eyeglass or prismatic glasses are to adopt glass lens (plastic) to make, and use allowing aspherical shape manufacture easily.
This parallel plane sheet has the function of Caver Glass of infrared ray (Cut Filter) or CCD and so on.
A kind of photographic lens group disposes two parallel plane sheets, and two parallel plane sheets have the function of the Caver Glass of infrared ray (Cut Filter) or CCD respectively.
These knot image planes dispose the solid-state image pickup sub-prime.
The CMOS Sensor of the solid-state image pickup sub-prime of these knot image planes is that chip on board constitutes, and mat should approach the film of resin can protect CMOS Sensor.
Beneficial effect of the present invention is: the innovation structural design is utilization one open type aperture, first eyeglass, second eyeglass, the prismatic glasses configuration person of forming, and utilize first eyeglass, second eyeglass and prismatic glasses structural improvement to suppress its ability, and allow core shift susceptibility of the present invention effectively alleviate, and has good receipts difference revisal effect, to meet the high-quality photographic lens group of market demands.
Description of drawings
Figure 1A is that the eyeglass of the embodiment of the invention 1 constitutes synoptic diagram.
Figure 1B is receipts difference figure, the optical characteristics data figure of the embodiment of the invention 1.
Fig. 2 A is that the eyeglass of the embodiment of the invention 2 constitutes synoptic diagram.
Fig. 2 B is receipts difference figure, the optical characteristics data figure of the embodiment of the invention 2.
Fig. 3 A is that the eyeglass of the embodiment of the invention 3 constitutes synoptic diagram.
Fig. 3 B is receipts difference figure, the optical characteristics data figure of the embodiment of the invention 3.
Fig. 4 A is that the eyeglass of the embodiment of the invention 4 constitutes synoptic diagram.
Fig. 4 B is receipts difference figure, the optical characteristics data figure of the embodiment of the invention 4.
Fig. 5 A is that the eyeglass of the embodiment of the invention 5 constitutes synoptic diagram.
Fig. 5 B is receipts difference figure, the optical characteristics data figure of the embodiment of the invention 5.
Fig. 6 A is that the eyeglass of the embodiment of the invention 6 constitutes synoptic diagram.
Fig. 6 B is receipts difference figure, the optical characteristics data figure of the embodiment of the invention 6.
Fig. 7 A is that the eyeglass of the embodiment of the invention 7 constitutes synoptic diagram.
Fig. 7 B is receipts difference figure, the optical characteristics data figure of the embodiment of the invention 7.
Fig. 8 A is that the eyeglass of the embodiment of the invention 8 constitutes synoptic diagram.
Fig. 8 B is receipts difference figure, the optical characteristics data figure of the embodiment of the invention 8.
Fig. 9 A is that the eyeglass of the embodiment of the invention 9 constitutes synoptic diagram.
Fig. 9 B is receipts difference figure, the optical characteristics data figure of the embodiment of the invention 9.
Figure 10 A is that the eyeglass of the embodiment of the invention 10 constitutes synoptic diagram.
Figure 10 B is receipts difference figure, the optical characteristics data figure of the embodiment of the invention 10.
Figure 11 A is that the eyeglass of the embodiment of the invention 11 constitutes synoptic diagram.
Figure 11 B is receipts difference figure, the optical characteristics data figure of the embodiment of the invention 11.
Figure 12 A is that the eyeglass of the embodiment of the invention 12 constitutes synoptic diagram.
Figure 12 B is receipts difference figure, the optical characteristics data figure of the embodiment of the invention 12.
Figure 13 is embodiment 1～embodiment 3 asphericity coefficient synoptic diagram.
Figure 14 is embodiment 4～embodiment 6 asphericity coefficient synoptic diagram.
Figure 15 is embodiment 7～embodiment 9 asphericity coefficient synoptic diagram.
Figure 16 is embodiment 10～embodiment 11 asphericity coefficient synoptic diagram.
Figure 17 is embodiment 12 asphericity coefficient synoptic diagram.
The actual numerical value of subordinate list 1, subordinate list 2 various embodiments of the present invention.
The primary clustering symbol description
Open type aperture 1
Parallel plane sheet 2
Knot image planes 3
The first eyeglass L 1
The second eyeglass L 2
Prismatic glasses L 3
Embodiment
Relevant the present invention is the technology of reaching above-mentioned purpose, being adopted, means and other effect, now enumerate several preferred embodiments and cooperate graphic detailed description as after, believe purpose of the present invention, feature and other advantage, when can by one deeply and concrete understanding;
See also the photographic lens group embodiment of the different numerical value change shown in each figure, all true gained of testing of the numerical value change of each embodiment of the present invention had both used the product of different numerical value, same structure must belong to protection category of the present invention, stated clearly at this in advance;
Photographic lens group of the present invention includes open type aperture 1, the first eyeglass L 1, the second eyeglass L 2, prismatic glasses L 3, parallel plane eyeglass 2 (Glass) and knot image planes 3 (open type aperture, knot image planes only draw schematic lines in the drawings), and by corresponding object end alignment arrangements in regular turn; Photographic lens group of the present invention promptly is the optical system that the aforementioned structure assembly constitutes, and its primary structure is described as follows:
One open type aperture 1 is positioned at the outermost end of corresponding object;
One first eyeglass L 1, be planoconvex lens (Len) or the positive flexion eyeglass (MeniscusLen) of object side towards convex surface, the first eyeglass L of embodiment seven～12 among the 7th to 12 figure 1Be to use planoconvex lens (Len), and the first eyeglass L of the embodiment among other each figure 1Be to use positive flexion eyeglass (Meniscus Len), the first eyeglass L of the present invention 1The ability that the two convex lens sheets of commonly using have increase suppresses effect;
One second eyeglass L 2, one side is a flexion face aspherical shape at least, it is the negative flexion eyeglass (Meniscus Len) that corresponding imaging side direction convex surface, the second eyeglass L of embodiment one～12 among Fig. 1 to 12 2Be that the two sides all is the embodiment of aspherical shape;
One prismatic glasses L 3, one side is a flexion face aspherical shape at least, it is the positive flexion eyeglass (Meniscus Len) of homologue side towards convex surface, the prismatic glasses L of embodiment one～12 among Fig. 1 to 12 3Be that the two sides all is the embodiment of aspherical shape;
One parallel plane eyeglass 2 (Glass) has the ultrared function (IR Cut Filter) of elimination.Imaging surface 3 has disposed the solid-state image pickup sub-prime of CCD etc., and embodiment seven, eight, nine, 11 disposes the Caver Glass function that two parallel plane sheets, 2, two parallel plane sheets 2 have elimination infrared ray (IR Cut Filter) and CCD respectively among Fig. 7,8,9,11;
One knot image planes 3 dispose solid-state image pickup sub-primes such as CCD; When the CMOSSensor of the solid-state image pickup sub-prime of tying image planes 3 is chip on board formation, can protect CMOS Sensor because should approach the film of resin, so this kind embodiment does not need to install additional removal infrared ray worry mirror (IR Cut Filter); The above is the mutual relationship position and the general introduction thereof of each associated component of the present invention.
Clearly demonstrate various enforcement of the present invention for asking, the eyeglass set of data, numerical value change and the receipts difference mode of each embodiment below be described, and express at each the eyeglass set of data code name shown in Figure 1A of the present invention～Figure 12 B in advance:
F represents focal length;
F represents focus than number (fnumber);
ω represents the picture angle;
And 1 in the chart, 2,3,4....8 (partly chart has 9,10) the face designation that institute's first finger begins to arrange in regular turn from object side, for example: front and back two faces of the first eyeglass L1 are numbered 1,2;
R represents the radius-of-curvature (mm) on paraxial, the 7th with the 8th expression parallel plane eyeglass 2 two among Figure 1B for example, and the side all is unlimited radius-of-curvature ∞;
D, representative face is (thickness) at interval, and size is an expression numerical value (mm);
Nd represents the flexion rate, represents the first eyeglass L 1, the second eyeglass L 2, prismatic glasses L 3And the flexion rate of parallel plane eyeglass 2;
Vd, the contrary dispersion rate of representative is represented the first eyeglass L 1, the second eyeglass L 2, prismatic glasses L 3And the contrary dispersion rate of parallel plane eyeglass 2;
Therefore: the f in the table 1Be the first eyeglass L 1Focal length, f 3Be prismatic glasses L 3Focal length; F then represents the focal length of complete set, f 23Be the second eyeglass L 2And prismatic glasses L 3Synthetic focal length, d 2Be the second eyeglass L 2Thickness, R 31Represent prismatic glasses L 3The radius-of-curvature of object side, R 32Represent prismatic glasses L 3The radius-of-curvature of imaging side.
Figure 1B～Figure 12 B is that the sphere of each embodiment is received poor, non-poor, as to distort the receipts difference diagram of checking and accepting; Though be that figure all relevant for the data of d line, but not check and accept the data that difference has Sagittal flechette-type image planes S and Meridional meridianal image surface (M).
Effect key of the present invention is:
The present invention is the photographic lens group that constitutes with three unique eyeglasses, is used in mainly on the portable machine that (for example: built-in optical system in the photograph mobile phone), its optical system effect is the utilization first eyeglass L 1, the second eyeglass L 2And prismatic glasses L 3And constitute, with the eyeglass of commonly using TOHKEMY 2004-4566 patent documentation more as can be known, first eyeglass of commonly using is two protruding formula eyeglasses, reviews the first eyeglass L of the present invention 1Be at planoconvex lens (Len) or the positive flexion eyeglass (Meniscus Len) of object side, along with the first eyeglass L of the present invention towards convex surface 1Structural arrangements can suppress itself ability, also can suppress the second eyeglass L in the lump 2Ability;
In addition, the second eyeglass L of the present invention 2And prismatic glasses L 3All one side is a flexion face aspherical shape at least, therefore, and the second eyeglass L 2And prismatic glasses L 3Flexion face aspherical shape can inhibition itself ability, also can produce and receive the effect that differs from revisal;
The present invention can effectively allow the core shift susceptibility reduce by the mutual collocation of aforementioned two functions, more can promote the receipts difference revisal effect of photographic lens group optical system, is a kind of high-quality photographic lens group that meets market demands really.
Other sees also the B of each figure of the present invention graphic (receiving difference figure), and from the data analysis of receiving poor figure as can be known, receipts difference of the present invention revisal can both be finished really, improved characteristics of the present invention true tool industry applications in practicality;
In addition, the first eyeglass L of the present invention 1, the second eyeglass L 2, prismatic glasses L 3It is preferable to be to use plastics (plastic) to make, because of the aspherical shape of one side in its eyeglass can be easier to manufacture.
For the purpose of the present invention, the first eyeglass L 1Focal distance f 1With prismatic glasses L 3Focal distance f 3If can satisfy Conditional, then implementation result is better:
When
Figure A20041009858000092
The time, the first eyeglass L 1With prismatic glasses L 3Capability distribution more not appropriate, cause the problem of receiving difference revisal difficulty easily, also have,
Figure A20041009858000093
The time, the first eyeglass L 1Ability can become greatly, cause the core shift susceptibility higher.
For the present invention, the synthetic focal length of complete series eyeglass is f, the second eyeglass L 2Thickness be d 2The time, if satisfy
Figure A20041009858000094
Conditional preferable:
The time, the shooting sub-prime is excessive, and eyeglass is blocked up, exceeds total length length;
Figure A20041009858000096
The time, the shooting sub-prime is too small, and eyeglass is thin excessively, makes difficulty; Therefore, the present invention can adjust the size of the shooting sub-prime of composition data amplitude of adaptation broad.
The present invention's prismatic glasses L 3The radius-of-curvature of object side be R 31, prismatic glasses L 3The radius-of-curvature of imaging side be R 32If satisfy
Figure A20041009858000097
Conditional preferable:
The time, it is big that peripheral downbending amount (sag) becomes, and shortens to the back of the body protruding (FlangeBack) of tying image planes 3;
Figure A20041009858000099
The time, the lens thickness error of central part and outer part is big, if when being to use glass lens (plastic), along with temperature variation, shaping error can cause the excessive problem that distributes of making.
Other is noted that the present invention second eyeglass L 2With prismatic glasses L 3Synthetic focal length f 23, the synthetic focal length of eyeglass complete series is f, if can satisfy Conditional preferable:
Figure A200410098580000911
The time, if the second eyeglass L 2With prismatic glasses L 3Use glass lens (plastic), then the moving of focal position that produces along with temperature variation also can become big.
See also shown in each figure; Various embodiments of the present invention have eyeglass pie graph (Figure 1A～Figure 12 A) and optical characteristics data and receipts difference figure (Figure 1B～Figure 12 B).As for Figure 13～Figure 17 then is the aspheric surface MSDS diagrammatic sketch of various embodiments of the present invention.The actual numerical value of various embodiments of the present invention then sees also subordinate list 1 and subordinate list 2, about embodiment 1-12, the DATA sum total of its d (face at interval) (but requires the part of parallel plane eyeglass 2 with optical full length, d changes the gap scaled distance into and gets it) time, just shown in subordinate list 2, wherein can understand the suitable built-in sizes values of mobile phone.
In the aspheric surface MSDS diagrammatic sketch of Figure 13～Figure 17, aspherical shape is the aspherical shape coefficient with ABCDEFG, is the benchmark of vertex of surface when representing with the position of the high H that begins from optical axis, at the displacement X of optical axis direction:
X＝(1/R)H 2/〔1+〔1-(1+K)(H/R) 2〕1/2〕+AH 4+BH 6+CH 8+DH 10+EH 12+FH 14+GH 16
Wherein: R is paraxial radius-of-curvature
K is conical coefficient (Conical)
Asphericity coefficient E-03 represents 10-3.
By the aforementioned data explanation as can be known, f of the present invention 1, f 3, d 2, R 31, R 32And F 23Relevant numerical range, preferable as if adopting following setting:
(1).
The time, the eyeglass ability is not appropriate, receives difference revisal difficulty;
The time, it is big that the eyeglass ability becomes, and the core shift susceptibility is higher.
(2).
The time, the shooting sub-prime is excessive, and eyeglass is blocked up, exceeds length;
Figure A20041009858000102
The time, the shooting sub-prime is too small, and eyeglass is thin excessively, makes difficulty.
(3).
Figure A20041009858000103
The time, it is big that peripheral downbending amount (sag) becomes, and shortens to the back of the body protruding (Flange Back) of tying image planes;
Figure A20041009858000105
The time, the lens thickness error of central part and outer part is big, if when being to use glass lens (plastic), along with temperature variation, shaping error can cause the excessive problem that distributes of making.
(4).
The time, use glass lens (plastic) also can become big along with the moving of focal position that temperature variation produces.
In sum, the innovation structural design is utilization one open type aperture, first eyeglass, second eyeglass, the prismatic glasses configuration person of forming, and utilizes first eyeglass, second eyeglass and prismatic glasses structural improvement to suppress its ability.
f3/f1 F/d2 R32/R31 F/|f23|
Embodiment 1 1.296 8.103 2.103 0.035
Embodiment 2 1.982 8.521 2.681 0.007
Embodiment 3 1.608 8.388 3.725 0.039
Embodiment 4 1.065 8.602 4.840 0.123
Embodiment 5 1.467 9.574 2.141 0.010
Embodiment 6 2.173 10.439 1.260 0.262
Embodiment 7 1.246 10.218 6.823 0.093
Embodiment 8 2.616 5.248 1.541 0.125
Embodiment 9 1.686 5.818 1.665 0.022
Embodiment 10 1.596 9.185 2.097 0.291
Embodiment 11 2.220 7.497 2.741 0.202
Embodiment 12 0.997 8.599 5.831 0.199
Subordinate list one
Total length
Embodiment
1 4.96
Embodiment 2 5.31
Embodiment 3 5.76
Embodiment 4 5.34
Embodiment 5 5.53
Embodiment 6 6.63
Embodiment 7 6.19
Embodiment 8 4.58
Embodiment 9 4.07
Embodiment 10 5.62
Embodiment 11 3.78
Embodiment 12 5.67
Subordinate list two

Claims (16)

1. a photographic lens group includes open type aperture, first eyeglass, second eyeglass, prismatic glasses, and by corresponding object end alignment arrangements in regular turn, its improvement is:
This first eyeglass is planoconvex lens or the positive flexion eyeglass of object side towards convex surface;
This second eyeglass, one side is a flexion face aspherical shape at least, it is the negative flexion eyeglass that corresponding imaging side direction convex surface;
This prismatic glasses, one side is a flexion face aspherical shape at least, it is the positive flexion eyeglass of homologue side towards convex surface.
2. a kind of photographic lens group according to claim 1 is characterized in that the focal length of this first eyeglass is f 1, prismatic glasses focal length be f 3The time, it satisfies 0.9＜f 3/ f 1＜2.7 conditional.
3. a kind of photographic lens group according to claim 1 is characterized in that the synthetic focal length of complete series eyeglass is f, and the thickness of second eyeglass is d 2The time, satisfy 5.0＜f/d 2＜11.0 conditional.
4. a kind of photographic lens group according to claim 1 is characterized in that the radius-of-curvature of the object side of this prismatic glasses is R 31, prismatic glasses the radius-of-curvature of imaging side be R 32The time, satisfy 1.0＜R 32/ R 31＜7.0 conditional.
5. according to claim 1,2,3 or 4 described a kind of photographic lens groups, it is characterized in that the synthetic focal length f of this second eyeglass and prismatic glasses 23, the synthetic focal length of eyeglass complete series is f, satisfy f＜| f 23|＜0.4 conditional.
6. a kind of photographic lens group according to claim 1 is characterized in that, this photographic lens group includes open type aperture, first eyeglass, second eyeglass, prismatic glasses, parallel plane sheet and knot image planes, and by corresponding object end alignment arrangements in regular turn.
7. according to claim 2 or 3 described a kind of photographic lens groups, it is characterized in that the radius-of-curvature that the object of this prismatic glasses is surveyed is R 31, prismatic glasses the radius-of-curvature of imaging side be R 32The time, satisfy 1.0＜R 32/ R 31＜7.0 conditional.
8. according to claim 2 or 4 described a kind of photographic lens groups, it is characterized in that the synthetic focal length of complete series eyeglass is f, the thickness of second eyeglass is d 2The time, satisfy 5.0＜f/d 2＜11.0 conditional.
9. a kind of photographic lens group according to claim 7 is characterized in that, the synthetic focal length f of this second eyeglass and prismatic glasses 23, the synthetic focal length of eyeglass complete series is f, satisfy f＜| f 23|＜0.4 conditional.
10. a kind of photographic lens group according to claim 8 is characterized in that, the synthetic focal length f of this second eyeglass and prismatic glasses 23, the synthetic focal length of eyeglass complete series is f, satisfy f＜| f 23|＜0.4 conditional.
11. a kind of photographic lens group according to claim 1 is characterized in that, the synthetic focal length f of this second eyeglass and prismatic glasses 23, the synthetic focal length of eyeglass complete series is f, satisfy f＜| f 23|＜0.4 conditional; The focal length of this first eyeglass is f 1, prismatic glasses focal length be f 3The time, it satisfies 0.9＜f 3/ f 1＜2.7 conditional; The synthetic focal length of complete series eyeglass is f, and the thickness of second eyeglass is d 2The time, satisfy 5.0＜f/d 2＜11.0 conditional; The radius-of-curvature of the object side of this prismatic glasses is R 31, prismatic glasses the radius-of-curvature of imaging side be R 32The time, satisfy 1.0＜R 32/ R 31＜7.0 conditional.
12. a kind of photographic lens group according to claim 1 is characterized in that, this first eyeglass, second eyeglass or prismatic glasses are to adopt glass lens (plastic) to make, and use allowing aspherical shape manufacture easily.
13. a kind of photographic lens group according to claim 6 is characterized in that, this parallel plane sheet has the function of Caver Glass of infrared ray (Cut Filter) or CCD and so on.
14. a kind of photographic lens group according to claim 6 disposes two parallel plane sheets, two parallel plane sheets have the function of the Caver Glass of infrared ray (Cut Filter) or CCD respectively.
15. a kind of photographic lens group according to claim 6 is characterized in that these knot image planes dispose the solid-state image pickup sub-prime.
16. a kind of photographic lens group according to claim 15 is characterized in that, the CMOS Sensor of the solid-state image pickup sub-prime of these knot image planes is that chip on board constitutes, and can protect CMOSSensor by the film of this thin resin.
CN 200410098580 2004-12-14 2004-12-14 Camera lens assembly Pending CN1790086A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102221739A (en) * 2010-04-15 2011-10-19 大立光电股份有限公司 Shooting optical system
CN104062747A (en) * 2014-07-14 2014-09-24 沈阳敏像科技有限公司 Three-lens five-mega-pixel front camera of mobile phone

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102221739A (en) * 2010-04-15 2011-10-19 大立光电股份有限公司 Shooting optical system
CN104062747A (en) * 2014-07-14 2014-09-24 沈阳敏像科技有限公司 Three-lens five-mega-pixel front camera of mobile phone

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