TWI505015B - Lens assembly - Google Patents

Description

Lens

The present invention relates to a lens, and more particularly to a lens having a reduced thickness.

Referring to the operation modes of the conventional lens 10 shown in Figs. 1 and 2, only some components of the lens 10 are shown in the drawing, and other unrelated components are omitted. The lens group frame 11 is substantially cylindrical, and the rotary cylinder 12 is sleeved in the lens group frame 11, and the cam pins of the lens group frame 11 (shown in FIG. 5 and FIG. 6 and indicated by the reference numeral 111) are fitted. The cam groove 121 of the revolving cylinder 12 allows the revolving cylinder 12 to move the lens group frame 11 along the optical axis OA1.

When photographing, the revolving cylinder 12 rotates, and the lens group frame 11 is moved along the optical axis OA1, and the blades 13 and 14 are interlocked to expose the lens group 15 for photographing. When accommodating, the revolving cylinder 12 rotates in the opposite direction, and the lens group frame 11 is moved back to the original position along the optical axis OA1, and the blades 13 and 14 are unfolded to shield the lens group 15 from dust and to protect the lens group 15.

The lens group 15 and the blades 13 and 14 are all disposed on the lens group frame 11 and supported by the lens group frame 11. Referring to FIGS. 3 and 4, a blade operation space 16 is formed at one end of the lens group frame 11, The blades 13 and 14 are shielded from the lens group 15 (Fig. 3), or are folded to expose the lens group 15 (Fig. 4), and are all performed in the blade operation space 16.

Please refer to FIG. 5 and FIG. 6 . FIG. 5 is a schematic view showing the lens group frame 11 and the rotary cylinder 12 in the circumferential direction of the lens 10 during storage. FIG. 6 is a lens group frame 11 when the lens 10 is photographed. And a schematic view of the revolving cylinder 12 deployed along its circumferential direction. As described above, when the revolving cylinder 12 drives the lens group frame 11, the convexity of the lens group frame 11 The wheel pin 111 will move relative to each other in the cam groove 121 of the rotary cylinder 12. As can be seen from FIGS. 5 and 6, the cam groove 121 extending on the rotary cylinder 12 is carried out during storage or photographing operation. There is no overlap with the blade operating space 16.

The manner in which the rotary cylinder 12 links the blades 13, 14 will be described below. Referring to FIG. 7, first, the blade actuating ring 17 is rotated by the elastic member 18, and then the blade 13 is rotated by the abutting portion 171 of the blade actuating ring 17, and then the abutting portion 132 of the blade 13 is used to drive the blade 14 to rotate. Finally, the blades 13 and 14 are in a folded state, and the lens group 15 is exposed. Conversely, when the blade actuation ring 17 rotates in the opposite direction, the abutment portion 171 of the blade actuation ring 17 will release the blade 13, and under the pulling of the elastic member 19, the blades 13, 14 will be deployed to shield the lens group. 15.

In recent years, portable electronic products have gradually become smaller and lighter in order to facilitate carrying and use, and the lenses required for them have to be thinned and lightened. To this end, the present invention rearranges the interior space of the lens to reduce the thickness thereof during storage.

In order to achieve the above object, the present invention provides a lens comprising a lens group, a plurality of blades, a lens group frame, and a rotary cylinder. The blade is moved in a blade operating space and can be deployed to shield the lens group or collapse to expose the lens group. The lens group frame supports the lens group and the blade. When the rotating cylinder rotates, the lens group frame is moved along an optical axis, and the blades are unfolded or folded. When the blade unfolds to shield the lens group, the rotary cylinder enters the blade operation space, and when the blade is folded to expose the lens group, the rotary cylinder exits the blade operation space.

The lens group frame is substantially cylindrical, the blade operation space is formed at one end of the lens group frame, and the lens group is disposed outside the blade operation space.

Wherein, when the blade is unfolded, the edge of the blade operating space moves toward the middle to allow the edge of the blade operating space to allow the rotary cylinder to enter, and when the blade is folded, the rotary cylinder exits the edge of the blade operating space, so that the blade can be The middle of the blade operating space moves toward the edge.

Wherein the rotary cylinder comprises at least one cam groove, and the lens group frame comprises One cam pin is missing, and the cam pin protrudes into the cam groove, so that the rotary cylinder can drive the lens group frame.

Wherein, when the blade is deployed to shield the lens group, at least a part of the cam groove overlaps with the blade operation space, so that the rotary cylinder can enter the blade operation space.

Since the rotary cylinder can enter the blade operation space when the lens is stored, the present invention can further reduce the thickness of the lens and achieve the purpose of thinning.

The above described objects, features, and advantages of the invention will be apparent from the description and appended claims

10‧‧‧ lens

11‧‧‧Lens group frame

12‧‧‧ revolving cylinder

13‧‧‧ leaves

14‧‧‧ leaves

15‧‧‧Lens Group

16‧‧‧ Blade Operating Space

17‧‧‧ Blade actuation ring

18‧‧‧Flexible components

19‧‧‧Flexible components

111‧‧‧Cam pin

121‧‧‧ cam slot

132‧‧‧Apartment

171‧‧‧Apartment

OA1‧‧‧ optical axis

20‧‧‧ lens

21‧‧‧Lens group frame

22‧‧‧Rotary

23‧‧‧ blades

24‧‧‧ leaves

25‧‧‧ lens group

26‧‧‧ Blade operating space

211‧‧‧Cam pin

221‧‧‧ cam slot

OA2‧‧‧ optical axis

Figure 1 is a perspective view of the relevant components of the conventional lens when the blade is deployed.

Figure 2 is a perspective view of the relevant components of the conventional lens when the blade is folded.

Figure 3 is a cross-sectional view of the relevant components of the conventional lens when the blade is deployed.

Figure 4 is a cross-sectional view of the relevant components of the conventional lens when the blade is folded.

Fig. 5 is a schematic view showing the lens group frame and the rotary cylinder being deployed in the circumferential direction during storage of the conventional lens.

Fig. 6 is a schematic view showing the lens group frame and the rotary cylinder being deployed in the circumferential direction of the conventional lens at the time of shooting.

Figure 7 is an exploded view of the relevant components of the conventional lens.

Figure 8 is a perspective view of the relevant components of the lens of the present invention as the blade is unfolded.

Figure 9 is a perspective view of the relevant components of the lens of the present invention when the blade is folded.

Figure 10 is a cross-sectional view of the relevant elements of the lens of the present invention as the blade is unfolded.

Figure 11 is a cross-sectional view of the relevant elements of the lens of the present invention when the blade is folded.

Fig. 12 is a schematic view showing the lens group frame and the rotary cylinder being deployed in the circumferential direction of the lens according to the present invention.

Figure 13 is a view of the lens group frame and the rotary cylinder along the lens according to the present invention. Schematic diagram of the circumferential expansion.

Referring to Figures 8 and 9 for the operation of the lens 20 of the present invention, only elements directly related to the present invention in the lens 20 are shown, and other elements are omitted. The lens group frame 21 is substantially cylindrical, and the rotary cylinder 22 is sleeved in the lens group frame 21. When the image is stored and stored, the rotary cylinder 22 can move the lens group frame 21 along the optical axis OA2.

In detail, when photographing, the revolving cylinder 22 is rotated to drive the lens group frame 21 to move along the optical axis OA2, and the interlocking blades 23, 24 are folded to expose the lens group 25 for photographing. When stored, the revolving cylinder 22 rotates in the opposite direction, and the lens group frame 21 is moved back to the original position along the optical axis OA2, and the interlocking blades 23 and 24 are unfolded to shield the lens group 25, thereby providing dustproof and protecting the lens group 25.

The lens group 25 and the blades 23 and 24 are all disposed on the lens group frame 21 and supported by the lens group frame 21. Referring to FIG. 10 and FIG. 11, a blade operation space 26 is formed at one end of the lens group frame 21, And the lens group 25 is disposed outside the blade operation space 26, wherein the blades 23, 24 are shielded from the lens group 25 (Fig. 10), or are folded to expose the lens group 25 (Fig. 11), both of which are The operation space 26 is performed.

Comparing Fig. 10 and Fig. 11, it can be seen that when the blades 23, 24 are deployed, the blades 23, 24 are moved from the edge of the blade operating space 26 toward the center, and the vacant position provides access to the revolving cylinder 22. When the blades 23, 24 are folded, the rotary cylinder 22 exits the edge of the blade operating space 26, allowing the blades 23, 24 to be retracted from the middle of the blade operating space 26.

Since the revolving cylinder 22 can enter the blade operation space 26 when the lens 20 is housed, the present invention can further reduce the thickness of the lens 20 and achieve the purpose of thinning.

Referring to FIG. 12 and FIG. 13 , FIG. 12 is a schematic view showing the lens group frame 21 and the rotary cylinder 22 being deployed along the circumferential direction of the lens 20 according to the present invention. Fig. 13 is a schematic view showing the lens group frame 21 and the rotary cylinder 22 in the circumferential direction of the lens 20 according to the present invention. When the revolving cylinder 22 drives the lens group frame 21, the cam pins 211 of the lens group frame 21 will move relative to each other in the cam groove 221 of the revolving cylinder 22, as can be seen from Fig. 12, during the storage operation, in the revolving cylinder The cam groove 221 extending over 22 will partially overlap the blade operating space 26 so that the rotating drum 22 can enter the blade operating space 26 for the purpose of reducing the thickness of the lens 20.

Although the present invention has been described above in terms of the preferred embodiments, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

20‧‧‧ lens

21‧‧‧Lens group frame

22‧‧‧Rotary

23‧‧‧ blades

24‧‧‧ leaves

25‧‧‧ lens group

26‧‧‧ Blade operating space

OA2‧‧‧ optical axis

Claims (5)

A lens comprising: a lens group; a plurality of blades movable in a blade operating space, expandable to shield the lens group or folded to expose the lens group; a lens group frame supporting the lens group and the blades a rotating cylinder, which rotates to move the lens group frame along an optical axis, and interlocks the blades to expand or collapse; when the blades expand to shield the lens group, the rotating cylinder enters the blade operating space, When the blades are folded to expose the lens group, the rotary cylinder exits the blade operating space. The lens of claim 1, wherein the lens group frame is substantially cylindrical, the blade operation space is formed at one end of the lens group frame, and the lens group is disposed outside the blade operation space. The lens of claim 1, wherein the blades are unfolded by an edge of the blade operating space toward the middle to allow an edge of the blade operating space to allow the rotary cylinder to enter, and the blade The revolver tube exits the edge of the blade operating space when the blade is folded, so that the blades can be moved from the middle of the blade operating space toward the edge. The lens of claim 1, wherein the rotary cylinder comprises at least one cam groove, the lens group frame comprising at least one cam pin, the cam pin extending into the cam groove, such that the rotary cylinder can drive the lens Group box. The lens of claim 4, wherein when the blades are deployed to shield the lens group, at least a portion of the cam groove overlaps the blade operating space to enable the rotary cylinder to enter the blade operating space.