Lens assembly and electronic device including the same
AssigneeSamsung Electronics Co., Ltd.
InventorDongwoo Kim
Life of this patent
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Abstract
According to certain embodiments of the disclosure, a lens assembly and/or an electronic device including the same may comprise an image sensor, three or four lenses sequentially arranged along an optical axis from an object side to an image sensor side, and a coating layer provided on an object-side surface or an image sensor-side surface of at least one of the lenses and configured to at least partially block light in a wavelength band of 800 nm to 1000 nm. The lens assembly may meet Equation 1 and Equation 2. 0.001 ≤ BFL HFoV ≤ 0.02 [ Equation 1 ] 1.3 ≤ OAL IH ≤ 1.6 [ Equation 2 ] Other various embodiments are possible as well.
Claims15
A lens assembly comprising:
- an image sensor;
- three or four lenses sequentially arranged along an optical axis from an object side to an image sensor side;
- and
- a coating layer provided on an object-side surface or an image sensor-side surface of at least one of the three or four lenses and configured to at least partially block light in a wavelength band of 800 nm to 1000 nm,
- wherein the lens assembly meets Equation 1 and Equation 2,
- 0.
- 1
- ≤
- B
-
- F
-
- L
- HFoV
- ≤
- 0
- .02
- [
- Equation
-
- 1
- ]
- 1.3
- ≤
- O
-
- A
-
- L
- I
-
- H
- ≤
- 1.6
- [
- Equation
-
- 2
- ]
- wherein ‘back focal length (BFL)’ is a distance from an image sensor-side surface of an image sensor-side first lens to an image plane of the image sensor along the optical axis, ‘half field of view (HFoV)’ is a half field of view of the lens assembly, ‘overall length (OAL)’ is a distance from an object-side surface of an object-side first lens to the image plane of the image sensor along the optical axis, and ‘image height (IH)’ is an image height of the image sensor from the optical axis,
- wherein the lens assembly meets Equation 3,
- 0
- .
- 3
-
- 4
- ≤
- B
-
- F
-
- L
- f
- ≤
- 0
- .
- 5
-
- 1
- [
- Equation
-
- 3
- ]
- wherein ‘f’ is a focal length of the lens assembly.
Dependencies are inferred from the claim text.