TWI467263B - Lens module - Google Patents

Description

Lens module

The invention relates to a lens module.

At present, the focusing fixture adjusts the lens contained in the lens barrel by adjusting the focusing portion of the lens barrel to relatively move the lens barrel and the actuator carrier between the two limiting structures of the actuator. Thereby determining the position where the lens is clearly imaged, and then dispensing the lens barrel with the actuator carrier for subsequent use at the gap between the lens barrel and the actuator carrier.

However, in the dispensing process, especially when the lens is large and the gap between the lens barrel and the actuator carrier is small, the glue easily overflows between the lens barrel and the actuator carrier to make the lens barrel Gluing with the limit structure of the actuator causes the actuator carrier to fail to move the lens barrel between the limit structures of the actuator for focusing.

In view of this, it is necessary to provide a lens module that can prevent spillage when dispensing.

A lens module includes a carrier plate, an actuator carrier, a lens barrel, and a housing. The housing is disposed on the carrier plate. The housing defines a first through hole. The actuator carrier is coupled to the lens barrel and received in the first through hole. The lens barrel includes a receiving portion and a focusing portion disposed at one end of the receiving portion. The receiving portion is provided with a connecting portion away from an outer wall of one end of the focusing portion. The actuator carrier defines a second through hole. The accommodating portion is received in the second through hole and the connecting portion is connected to the actuator carrier. The outer wall of the lens barrel is from the focusing portion to A direction is formed in the connecting portion to expose the connecting portion.

Compared with the prior art, the lens module points glue into the groove to fix the lens barrel and the actuation when the lens barrel is glued to the actuator carrier. The carrier protects the glue from overflowing between the barrel and the actuator carrier.

10‧‧‧Lens module

110‧‧‧shell

112‧‧‧First through hole

120‧‧‧Loading board

130‧‧‧Image Sensor

140‧‧‧Acoustic carrier

142‧‧‧Second through hole

146a‧‧‧Threaded Department

150‧‧‧Mirror tube

152‧‧‧ Housing Department

152a‧‧‧Lens

154‧‧‧Focus Department

156‧‧‧Connecting Department

156a‧‧‧External thread

158‧‧‧ Groove

160‧‧‧Limited parts

162‧‧‧First stop

164‧‧‧second stop

FIG. 1 is a schematic perspective view of a lens module according to an embodiment of the present invention.

2 is a perspective exploded view of the lens module of FIG. 1.

3 is a cross-sectional view of the lens module of FIG. 1 taken along the III-III direction.

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

Please refer to FIG. 1 and FIG. 2 , which are a lens module 10 according to an embodiment of the present invention. The lens module 10 includes a housing 110 , a carrier 120 , an image sensor 130 , an actuator carrier 140 , a lens barrel 150 , and a limiting member 160 .

The housing 110 is disposed on the carrier plate 120. The housing 110 defines a first through hole 112. The image sensor 130 , the actuator carrier 140 , the lens barrel 150 , and the limiting member 160 are received in the first through hole 112 .

The image sensor 130 is disposed on the carrier 120 and electrically connected to the carrier 120. The image sensor 130 may be a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor). The image sensor 130 can be bonded to the carrier 120 and electrically connected to the carrier 120 by wires, or can be flip-chip, internal pin bonding, automatic tape bonding, reverse package or thermal compression. The connection mode causes the image sensor 130 to be structurally and electrically connected to the carrier 120. The carrier board 120 is used for the lens The optical signal picked up by the module 10 becomes an electrical signal.

The actuator carrier 140 defines a second through hole 142. The inner wall of the second through hole 142 is provided with an internal thread portion 146a. The actuator carrier 140 is electrically coupled to an actuator (not shown). The actuator is used to drive the actuator carrier 140 to move within the first through hole 112 along the axial direction of the lens barrel 150.

Referring to FIG. 3 , the lens barrel 150 includes a receiving portion 152 and a focusing portion 154 . The focusing portion 154 is disposed at one end of the receiving portion 152. A lens 152a (shown in FIG. 3) is received in the receiving portion 152. The receiving portion 152 includes a connecting portion 156 remote from the focusing portion 154. The outer wall of the connecting portion 156 is provided with an external thread portion 156a that cooperates with the female thread portion 146a. The housing portion 152 of the lens barrel 150 is received in the second through hole 142, and the male screw portion 156a of the housing portion 152 is fixedly coupled to the female screw portion 146a of the actuator carrier 140. The outer wall of the lens barrel 150 defines a recess 158 from the focusing portion 154 to the connecting portion 156 of the receiving portion 152 to expose the connecting portion 156.

The limiting member 160 includes a first stopping portion 162 and a second stopping portion 164 opposite to the first stopping portion 162. The first stopping portion 162 is disposed at an end of the inner wall of the first through hole 112 of the housing 110 away from the carrier plate 120. The second stopping portion 164 is disposed on an inner wall of the first through hole 112 of the housing 110 near an end of the carrier plate 120. In the present embodiment, the first stopper portion 162 and the second stopper portion 164 have a ring shape.

The external thread portion 156a of the receiving portion 152 of the lens barrel 150 is engaged with the female screw portion 146a of the actuator carrier 140 by a focusing portion 154 of the lens barrel 150 by a focusing fixture (not shown) and The lens 152a received in the accommodating portion 152 is subjected to focusing. When the focusing is completed, the dispensing device (not shown) points the colloid into the recess 158 of the lens barrel 150, so that the colloid occupies the receiving portion 152 of the lens barrel 150. It is fixed with the actuator carrier 140 to complete dispensing. The groove 158 can prevent the colloid from overflowing to the lens barrel 150 and the housing 110 or the lens barrel 150 and the first stop portion Between the 162 and the second stopping portion 164, the actuator carrier 140 is prevented from being fixed between the housing 110 and the first stopping portion 162 and the second stopping portion 164, so that the actuator carrier 140 cannot drive the mirror. The cylinder 150 moves between the first stopper portion 162 and the second stopper portion 164 to perform focusing.

When the lens barrel 150 and the actuator carrier 140 are glued and fixed, the lens module 10 points the glue into the groove 158 to fix the lens barrel 150 and the actuator carrier 140, thereby preventing glue from the lens barrel. There is an overflow between the 150 and the actuator carrier 140.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

10‧‧‧Lens module

110‧‧‧shell

112‧‧‧First through hole

120‧‧‧Loading board

130‧‧‧Image Sensor

140‧‧‧Acoustic carrier

146a‧‧‧Threaded Department

150‧‧‧Mirror tube

152‧‧‧ Housing Department

152a‧‧‧Lens

154‧‧‧Focus Department

156‧‧‧Connecting Department

156a‧‧‧External thread

158‧‧‧ Groove

160‧‧‧Limited parts

162‧‧‧First stop

164‧‧‧second stop

Claims (5)

A lens module includes a carrier plate, an actuator carrier, a lens barrel, a limiting member and a casing, the casing is disposed on the carrier plate, and the casing opens a first a through hole, the actuator carrier is connected to the lens barrel and received in the first through hole, and the limiting member is disposed on an inner wall of the first through hole for limiting the Movement of the actuator carrier, the limiting member includes a first stop portion and a second stop portion adjacent to the first stop portion, the first stop portion and the first stop portion The two stoppers respectively include a through hole corresponding to the first through hole, and the first stopping portion is disposed at an end of the inner wall of the first through hole away from the carrier plate, the second stop The moving portion is disposed on an inner wall of the first through hole near an end of the carrying plate, and the light entering the first through hole can reach the carrying plate through the through hole, and the lens barrel includes a a receiving portion and a focusing portion disposed at one end of the receiving portion, wherein the receiving portion is provided with a connecting portion away from an outer wall of one end of the focusing portion, the actuator carrying Opening a second through hole, the receiving portion is received in the second through hole and the connecting portion is connected to the actuator carrier, and the improvement is that the outer wall of the lens barrel is adjusted from the a groove is formed in a direction from the focal portion to the connecting portion to expose the connecting portion, and a gap facing the groove is formed between the first stopping portion and the lens barrel, and the gap is used for A colloid is spotted into the groove. The lens module of claim 1, wherein the lens module further comprises an image sensor disposed on the carrier. The lens module of claim 1, wherein the outer surface of the connecting portion of the lens barrel is provided with an external thread portion, and the inner wall of the second through hole is provided with the outer thread portion. The mating internal thread portion is connected to the actuator carrier by the external thread portion and the internal thread. The lens module of claim 1, wherein the shape of the first stop portion is Ring. The lens module of claim 1, wherein the second stopper has a ring shape.