US2014177079A1PendingUtilityA1

Lens module

51
Assignee: SAMSUNG ELECTRO MECHPriority: Dec 21, 2012Filed: Mar 15, 2013Published: Jun 26, 2014
Est. expiryDec 21, 2032(~6.4 yrs left)· nominal 20-yr term from priority
Inventors:Duck Hun Kim
G02B 13/001G02B 7/021G02B 7/026G02B 5/005G02B 7/028G02B 7/023G02B 27/0018G02B 7/02G02B 9/04
51
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

A lens module include a first lens, a second lens, and a distance maintenance member disposed between the first lens and the second lens, the distance maintenance member having a hole for adjusting an amount of light. An inner circumferential surface of the hole includes a plurality of inclined surfaces that are respectively inclined at predetermined angles with respect to an optical axis.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A lens module comprising:
 a first lens;   a second lens; and   a distance maintenance member disposed between the first lens and the second lens, the distance maintenance member having a hole for adjusting an amount of light,   wherein an inner circumferential surface of the hole comprises a plurality of inclined surfaces that are respectively inclined at predetermined angles with respect to an optical axis.   
     
     
         2 . The lens module of  claim 1 , wherein the plurality of inclined surfaces are discontinuously disposed with regard to one another. 
     
     
         3 . The lens module of  claim 1 , wherein the plurality of inclined surfaces comprise:
 a first inclined surface having a first inclined angle; and   a second inclined surface having a second inclined angle.   
     
     
         4 . The lens module of  claim 3 , wherein the first and second inclined angles are different from each other. 
     
     
         5 . The lens module of  claim 1 , further comprising a lens barrel that accommodates the first lens and the second lens. 
     
     
         6 . The lens module of  claim 5 , wherein the lens barrel is formed of a material having the same linear expansion coefficient as those of the first and second lenses. 
     
     
         7 . The lens module of  claim 6 , wherein each of the first and second lenses is formed of a plastic material, and the lens barrel is formed of polyarylate (PAR). 
     
     
         8 . The lens module of  claim 1 , wherein the distance maintenance member is formed of a nonferrous metal. 
     
     
         9 . A lens module comprising:
 a first lens;   a second lens; and   a first distance maintenance member disposed between the first lens and the second lens, the first distance maintenance member having a first hole for adjusting an amount of light; and   a second distance maintenance member disposed between the first lens and the second lens, the second distance maintenance member having a second hole for adjusting an amount of light,   wherein an inner circumferential surface of the first hole comprises a first inclined surface having a first inclined angle with respect to an optical axis, and   an inner circumferential surface of the second hole comprises a second inclined surface having a second inclined angle with respect to the optical axis.   
     
     
         10 . The lens module of  claim 9 , wherein the first and second inclined angles are different from each other. 
     
     
         11 . The lens module of  claim 9 , wherein the first and second holes are different in size. 
     
     
         12 . The lens module of  claim 9 , further comprising a lens barrel that accommodates the first lens and the second lens. 
     
     
         13 . The lens module of  claim 12 , wherein the lens barrel is formed of a material having the same linear expansion coefficient as those of the first and second lenses. 
     
     
         14 . The lens module of  claim 13 , wherein each of the first and second lenses is formed of a plastic material, and
 the lens barrel is formed of polyarylate (PAR).   
     
     
         15 . The lens module of  claim 9 , wherein each of the first and second distance maintenance members is formed of a nonferrous metal. 
     
     
         16 . A lens module comprising:
 a lens barrel;   a first lens group coupled to the lens barrel;   a second lens group coupled to the first lens group without in contact with the lens barrel; and   a third lens group coupled to the second lens group.   
     
     
         17 . The lens module of  claim 16 , wherein the third lens group is in contact with the lens barrel. 
     
     
         18 . The lens module of  claim 16 , wherein an inclined surface is disposed on an outer circumferential surface of the third lens group. 
     
     
         19 . The lens module of  claim 16 , wherein the second lens group comprises a plurality of lenses. 
     
     
         20 . The lens module of  claim 16 , further comprising a distance maintenance member disposed between the second lens group and the third lens group and having a hole for adjusting an amount of light. 
     
     
         21 . The lens module of  claim 20 , wherein the distance maintenance member is formed of a nonferrous metal. 
     
     
         22 . The lens module of  claim 20 , wherein an inner circumferential surface of the hole comprises a plurality of inclined surfaces, each having a predetermined angle with respect to an optical axis. 
     
     
         23 . The lens module of  claim 22 , wherein the plurality of inclined surfaces comprise:
 a first inclined surface having a first inclined angle; and   a second inclined surface having a second inclined angle.   
     
     
         24 . The lens module of  claim 23 , wherein the first and second inclined angles are different from each other. 
     
     
         25 . The lens module of  claim 16 , wherein the lens barrel is formed of a material having the same linear expansion coefficient as those of the first to third lens groups. 
     
     
         26 . The lens module of  claim 25 , wherein each of the first to third lenses is formed of a plastic material, and
 the lens barrel is formed of polyarylate (PAR).   
     
     
         27 . The lens module of  claim 16 , further comprising:
 a first distance maintenance member disposed between the second lens group and the third lens group, the first distance maintenance member having a first hole for adjusting an amount of light; and   a second distance maintenance member disposed between the second lens group and the third lens group, the second distance maintenance member having a second hole for adjusting the amount of light.   
     
     
         28 . The lens module of  claim 27 , wherein each of the first and second distance maintenance members is formed of a nonferrous metal. 
     
     
         29 . The lens module of  claim 27 , wherein an inner circumferential surface of the first hole comprises a first inclined surface having a first inclined angle with respect to an optical axis, and
 an inner circumferential surface of the second hole comprises a second inclined surface having a second inclined angle with respect to the optical axis.   
     
     
         30 . The lens module of  claim 29 , wherein the first and second inclined angles are different from each other. 
     
     
         31 . The lens module of  claim 29 , wherein the first and second holes are different in size.

Join the waitlist — get patent alerts

Track US2014177079A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.