Summary of the invention
In view of this, it is necessary to a kind of camera lens module that can be effectively improved image quality is provided.
A kind of camera lens module, the first eyeglass including a lens barrel and being contained in described lens barrel, the second mirror
Sheet, the 3rd eyeglass, a brake sack, described first eyeglass, described second eyeglass and described 3rd eyeglass
Being arranged in order from object end to the image end, each eyeglass all includes an optic and a non-optical division, institute
Stating optic for carrying out optical imagery, described non-optical division connects around described optic,
Described brake sack is arranged between the non-optical division of described second eyeglass and described 3rd eyeglass, and described second
Including first support division on the non-optical division as end surfaces of eyeglass, described first support division is with described
Brake sack offsets, and described first support division offers the first recess of a triangle, and described first
The bore of recess is L1, wherein 0.0377≤L1/D≤0.0943, wherein D be described lens barrel as end face
Internal diameter.
The camera lens module of the present invention, by offering recess on described second eyeglass, can effectively eliminate into
Veiling glare in the image of picture, to be effectively improved the image quality of described camera lens module.
Detailed description of the invention
Referring to Fig. 1, a kind of camera lens module 100 provided for embodiment of the present invention, it includes a mirror
Cylinder 101, first eyeglass the 11, second eyeglass the 12, the 3rd eyeglass the 13, the 4th eyeglass the 14, the 5th eyeglass
15, four brake sacks 20 and a CIS 30.
Cylindrically, it includes a untight picture of semi-enclosed thing end face 102, to described lens barrel 101
End face 103 and one with described thing end face 102 and the accommodation space 104 that is all connected as end face 103.?
In present embodiment, the internal diameter D of described picture end face 103 is 5.3mm.
Described first eyeglass the 11, second eyeglass the 12, the 3rd eyeglass the 13, the 4th eyeglass 14 and the 5th eyeglass
15 are contained in described accommodation space 104, and along described camera lens module 100 optical axis M from thing end to
As end is arranged in order.Each eyeglass all includes an optic and a non-optical division.Described optic is used
In carrying out optical imagery.Described non-optical division connects around described optic.During capture, light
Line sequentially passes through described first eyeglass the 11, second eyeglass 12, the 3rd eyeglass 13, the 4th eyeglass 14 and
Five eyeglasses 15, arrive described CIS 30, to carry out imaging.
Described four brake sacks 20 are made up and in hollow circular ring shape of elastic material, are contained in described accommodating
In space 104, and be separately positioned on described first eyeglass and described second eyeglass, described second eyeglass and
Described 3rd eyeglass, described 3rd eyeglass and described 4th eyeglass, described 4th eyeglass and described 5th mirror
Between the non-optical division of sheet.
Shown in Fig. 2, the non-optical division as end surfaces of described second eyeglass 12 includes one first
Support division 121, described first support division 121 near corresponding optic and with corresponding brake sack 20
Offset.The first recess 122 of a triangle is offered on described first support division 121.Described
The bore of one recess 122 is L1,0.2mm≤L1≤0.5mm, draws 0.0377≤L1/D≤0.0943.Described
First recess 122 includes that a drift angle towards described brake sack 20 is θ 1,120 °≤θ 1≤170 °.Described
Distance between the summit A and described camera lens module 100 optical axis M of the first recess 122 is D1.Described
Distance between summit A and the surface at described first support division 121 place of the first recess 122 is
D2 (degree of depth of the most described first recess 122), 0.01mm≤D2≤0.05mm, draw
0.002≤D2/D≤0.009.In the present embodiment, L1 be 0.46mm, θ 1 be 124 °, D1 is
1.39mm, D2 are 0.05mm.So, the optical axis of described light source and described camera lens module 100 can be alleviated
During M angle at 45 °, the described light source bent moon that in imaging, light source is other on described CIS 30
The veiling glare of shape.
The non-optical division of described second eyeglass 12 includes 125, the 3rd support division of second support division
126 and a connecting portion 127.Described second support division 125 is positioned at the non-optical of described second eyeglass 12
The sidewall in portion, described 3rd support division 126 is located at the picture end surfaces of described second eyeglass 12, described company
Meet portion 127 to be connected between described second support division 125 and described 3rd support division 126.Described second
Support division 125 offsets with the inwall of described lens barrel 101.Described 3rd support division 126 is with the described 3rd
Eyeglass 13 offsets.Described connecting portion 127 includes an inclined-plane 129.Described inclined-plane 129 and described mirror
Angle between the optical axis M of head mould group 100 is θ 2,100 °≤θ 2≤160 °.Described inclined-plane 129 includes
One a first end 129a and second end 129b.Described first end 129a is away from described camera lens module
The optical axis M of 100.Described second end 129b is near the optical axis M of described camera lens module 100.Described
Distance between the optical axis M of one end 129a and described camera lens module 100 is D3,2mm≤D3≤2.5mm,
Draw 0.377≤D3/D≤0.472, the optical axis M of described second end 129b and described camera lens module 100 it
Between distance be D4,1.8mm≤D4≤2.4mm, draw 0.339≤D4/D≤0.453.In present embodiment
In, θ 2 is 135 °, D3 be 2.32mm, D4 be 2.15mm.So, described light source can just be eliminated
When becoming 46 ° of angles with the optical axis M of described camera lens module 100, described light source is at described CIS 30
The veiling glare of knife edge shape in upper imaging, the most also can eliminate described light source and described camera lens module 100
Optical axis M when becoming 52 ° of angles, described light source tulwar in imaging on described CIS 30
The veiling glare of shape.
Shown in Fig. 3, the thing end surfaces of described 5th eyeglass 15 includes the 4th support division 151,
Described 4th support division 151 offsets with corresponding brake sack 20.Open on described 4th support division 151
If the second recess 152 of a triangle.The bore of described second recess 152 is L2,
0.1mm≤L2≤0.5mm, draws 0.019≤L2/D≤0.094.Described second recess 152 include one towards
3, the 120 °≤θ of vertex angle theta 3≤170 ° of described brake sack 20.The summit B of described second recess 152 and institute
The distance stated between the optical axis M of camera lens module 100 is D5,1.7mm≤D5≤2.3mm, draws
0.321≤D5/D≤0.434.The summit B of described second recess 152 and described 4th support division 151 place
Surface between distance be D6 (degree of depth of the most described second recess 152), 0.1mm≤D6≤0.5mm,
Draw 0.019≤D6/D≤0.094.In the present embodiment, L2 be 0.15mm, θ 3 be 124 °, D5
It is 0.18mm for 2mm, D6.So, the optical axis of described light source and described camera lens module 100 can be alleviated
When M becomes 36 ° of angles, described light source is distributed in the shape that scatters in imaging on described CIS 30
Veiling glare.
The image side of described 5th eyeglass 15 is additionally provided with a brake sack 20, the picture end of described 5th eyeglass 15
Near described optic and the brake sack 20 of the image side with described 5th eyeglass 15 on the non-optical division on surface
The part being spaced a distance offers an arc groove 156.The radius R1 of described arc groove 156,
0.03mm≤R1≤3mm, show that 0.006≤R1/D≤0.566, the bore of described arc groove 156 are L3,
0.1mm≤L3≤0.5mm, draws 0.019≤L3/D≤0.094, and described arc groove 156 is near corresponding optics
Distance between end and the optical axis M of described camera lens module 100 in portion is D7,2mm≤D7≤2.6mm,
Draw 0.377≤D7/D≤0.491.In the present embodiment, R1 be 0.1mm, L3 be 0.15mm,
D7 is 2.26mm.Meanwhile, described arc groove 156 carries out atomization process, so, can eliminate described
When light source becomes 36 ° of angles with the optical axis M of described camera lens module 100, described light source is at described image sensing
In the veiling glare of shape distribution of scattering in imaging on device 30.
The camera lens module of the present invention, by offering recess in the different piece of each eyeglass or making at atomization
Reason, can effectively eliminate described light source veiling glare on described CIS in imaging, with effectively
Improve the image quality of described camera lens module.
It is understood that for the person of ordinary skill of the art, can be according to the skill of the present invention
Other various corresponding changes and deformation is made in art design, and all these change all should belong to this with deformation
Invention scope of the claims.