Lens system and portable device employing the same
AssigneeSamsung Techwin Co., Ltd.
InventorKi-woo Lee
Life of this patent
Estimating the term…
Abstract
A lens system and a portable device employing the lens system are provided. The lens system includes at least three lenses and an infrared cut filter disposed between any of the lenses to prevent redness from occurring at a center region of an image as the lens system is miniaturized. An angle ⊖1 at which light is incident on the infrared cut filter satisfies 14°≦θ1≦16°.
Claims14
A lens system comprising at least three lenses and an infrared cut filter disposed between the second lens and the third lens such that a telecentric angle ⊖1 at which light is incident on the infrared cut filter satisfies 14°≦θ1≦16°.
A portable device comprising a lens system comprising at least three lenses and an infrared cut filter disposed between any of the lenses such that a telecentric angle ⊖1 at which light is incident on the infrared cut filter satisfies 14°≦θ1≦16°, and further comprising an image pick-up device,
- wherein the angle ⊖1 at which light is incident on the infrared cut filter and an angle ⊖2 at which light is incident on the image pick-up device satisfy
- 1.06
- ≤
- θ
- 2
- θ
- 1
- ≤
- 1.87
- .
A portable device comprising a lens system consisting of three lenses and further comprising an image pick-up device, and an infrared cut filter disposed between the second lens and the third lens such that a telecentric angle ⊖1 at which light is incident on the infrared cut filter satisfies 14°≦θ1≦16°.
Dependencies are inferred from the claim text.