LENS UNIT PROVIDED WITH AN ENGAGING STRUCTURE AND A LENS MODULE INCORPORATING THE SAME
First Claim
1. A lens unit comprising:
- a first lens having a first inner side and a first outer side opposite to said first inner side, and including a first optically effective portion that has a first center aligned with an optical axis, and a first positioning portion that surrounds said first optically effective portion, said first lens being provided with a groove unit that extends circumferentially about said first center at said first positioning portion from said first inner side toward said first outer side; and
a second lens having a second inner side confronting said first inner side of said first lens, and a second outer side opposite to said second inner side, said second lens including a second optically effective portion that has a second center aligned with the optical axis, and a second positioning portion that surrounds said second optically effective portion, said second lens being provided with a protrusion unit that extends circumferentially about said second center at said second positioning portion from said second inner side toward said first inner side, and that is received in said groove unit of said first lens.
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0 Petitions
Accused Products
Abstract
A lens unit includes first and second lenses. The first lens includes a first optically effective portion having a first center aligned with an optical axis, and a first positioning portion surrounding the first optically effective portion. The first lens is provided with a groove unit extending circumferentially about the first center at the first positioning portion. The second lens has a second inner side confronting the first lens, and includes a second optically effective portion having a second center aligned with the optical axis, and a second positioning portion surrounding the second optically effective portion. The second lens is provided with a protrusion unit that extends circumferentially about the second center at the second positioning portion and that is received in the groove unit.
31 Citations
20 Claims
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1. A lens unit comprising:
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a first lens having a first inner side and a first outer side opposite to said first inner side, and including a first optically effective portion that has a first center aligned with an optical axis, and a first positioning portion that surrounds said first optically effective portion, said first lens being provided with a groove unit that extends circumferentially about said first center at said first positioning portion from said first inner side toward said first outer side; and a second lens having a second inner side confronting said first inner side of said first lens, and a second outer side opposite to said second inner side, said second lens including a second optically effective portion that has a second center aligned with the optical axis, and a second positioning portion that surrounds said second optically effective portion, said second lens being provided with a protrusion unit that extends circumferentially about said second center at said second positioning portion from said second inner side toward said first inner side, and that is received in said groove unit of said first lens. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A lens module comprising:
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a lens barrel including a barrel wall that defines an optical axis and a receiving space; and a lens unit including a first lens having a first inner side, a first outer side opposite to said first inner side, and a first peripheral surface interconnecting said first inner side and said first outer side, said first lens including a first optically effective portion that has a first center aligned with the optical axis, and a first positioning portion that surrounds said first optically effective portion, said first lens being provided with a groove unit that extends circumferentially about said first center at said first positioning portion from said first inner side toward said first outer side, said first lens being disposed in said receiving space such that a first crevice is formed between said first peripheral surface and said barrel wall, and a second lens having a second inner side confronting said first inner side of said first lens, a second outer side opposite to said second inner side, and a second peripheral surface interconnecting said second inner side and said second outer side, said second lens including a second optically effective portion that has a second center aligned with the optical axis, and a second positioning portion that surrounds said second optically effective portion, said second lens being provided with a protrusion unit that extends circumferentially about said second center at said second positioning portion from said second inner side toward said first inner side, and that is received in said groove unit of said first lens, said second lens being disposed in said receiving space such that a second crevice is formed between said second peripheral surface and said barrel wall. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification