Image pickup lens assembly with a filter lens
View Patent ↗An image pickup assembly with a filter lens includes a barrel, a first lens and a second lens. In this case, the barrel has a container and a diaphragm. The first lens is accommodated in the container. The second lens is also accommodated in the container. Wherein, at least one of the first lens and the second lens is a filter lens.
1. An image pickup lens assembly with a filter lens, comprising:
a barrel, which has a container and a diaphragm;
a first lens, which is accommodated in the container; and
a second lens, which is accommodated in the container, wherein at least one of the first lens and the second lens is a filter lens.
2. The image pickup lens assembly of claim 1 , wherein the filter lens is a lens for absorbing specific wavelength light.
3. The image pickup lens assembly of claim 1 , wherein the filter lens is made of a blue glass composition.
4. The image pickup lens assembly of claim 3 , wherein the blue glass composition absorbs infrared rays and ultraviolet rays.
5. The image pickup lens assembly of claim 3 , further comprising:
at least one anti-reflection film, which is coated on relative both sides of the filter lens.
6. The image pickup lens assembly of claim 1 , wherein the filter lens is a spherical lens.
7. The image pickup lens assembly of claim 1 , wherein the filter lens is an aspherical lens.
8. The image pickup lens assembly of claim 1 , wherein the first lens is the filter lens and the second lens is a plastic lens.
9. The image pickup lens assembly of claim 1 , wherein the first lens is the filter lens and the second lens is a glass lens.
10. The image pickup lens assembly of claim 1 , wherein the first lens and the second lens are both the filter lenses.
11. The image pickup lens assembly of claim 1 , further comprising:
a holder, which is connected to the barrel.
12. The image pickup lens assembly of claim 1 , wherein a light beam enters the diaphragm, passes through the first lens and the second lens, and is received by a sensor.
13. The image pickup lens assembly of claim 1 , further comprising:
a third lens, which is accommodated in the container and is located between the first lens and the second lens.
14. The image pickup lens assembly of claim 13 , wherein the third lens is the filter lens.
15. The image pickup lens assembly of claim 13 , wherein the third lens is a plastic lens.
16. The image pickup lens assembly of claim 13 , wherein the third lens is a glass lens.