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CN-224216984-U - IR-CUT optical filter switcher, lens assembly and image pickup equipment

CN224216984UCN 224216984 UCN224216984 UCN 224216984UCN-224216984-U

Abstract

The utility model relates to an IR-CUT optical filter switcher, which comprises an upper shell, a lower shell, a plurality of optical filter switching units and a baffle plate positioned between the upper shell and the lower shell, wherein the upper shell, the baffle plate and the lower shell are connected, light passing holes are formed in the baffle plate, mounting positions for mounting the optical filter switching units are formed in at least two of the upper shell, the lower shell and the baffle plate, the upper shell and the lower shell are separated by the baffle plate to form two cavities, the optical filter switching units are respectively positioned in the two cavities, the baffle plate is used for separating and mounting the optical filter switching units, so that all components are prevented from interfering when the optical filter switching is carried out due to the fact that foreign matters enter the IR-CUT optical filter switcher, and the foreign matters are prevented from scraping all the optical filters.

Inventors

  • HE LIPING

Assignees

  • 深圳市赤翼电子有限公司

Dates

Publication Date
20260508
Application Date
20250717

Claims (10)

  1. 1. The IR-CUT optical filter switcher comprises an upper shell, a lower shell and a plurality of optical filter switching units and a partition plate positioned between the upper shell and the lower shell, wherein the upper shell, the partition plate and the lower shell are connected, a light passing hole is formed in the partition plate, and mounting positions for mounting the optical filter switching units are formed in at least two of the upper shell, the lower shell and the partition plate.
  2. 2. The IR-CUT filter switcher of claim 1, wherein the filter switching unit comprises a movable frame, one or more filters disposed on the movable frame, and a driving mechanism coupled to the movable frame.
  3. 3. The IR-CUT optical filter switcher according to claim 2, wherein the driving mechanism comprises a motor, guide rods which are arranged in the installation position at intervals with an output shaft of the motor are arranged in the installation position, a thread groove is formed in the output shaft of the motor, one movable frame is arranged on the guide rods in a sliding mode, and a clamping piece which is clamped with the thread groove is arranged at the other end of the movable frame.
  4. 4. The IR-CUT filter switcher as defined in claim 3, wherein a coil spring is fixedly sleeved on an output shaft of the motor, and two ends of the coil spring are of a linear structure.
  5. 5. The IR-CUT filter switcher according to claim 2, wherein the movable frame comprises a frame body of a rectangular plate structure, two mounting grooves are formed in the frame body at intervals, the filters are mounted in the corresponding mounting grooves, and groove through holes exposing the corresponding filters are formed in the bottoms of the mounting grooves.
  6. 6. The IR-CUT filter switcher according to claim 1, wherein a partition groove forming an installation position is recessed in the partition, and a avoidance notch avoiding the filter switching unit is formed in the partition groove.
  7. 7. The IR-CUT filter switch of claim 1, wherein the upper shell, the baffle and the lower shell are removably connected in sequence from top to bottom.
  8. 8. The IR-CUT filter switcher of claim 7 wherein a plurality of buckles are arranged on the upper shell and the lower shell, a plurality of first bayonets are arranged on the partition plate and are engaged with the buckles on the upper shell, and a plurality of second bayonets are also arranged on the partition plate and are engaged with the buckles on the lower shell.
  9. 9. A lens assembly comprising the IR-CUT filter switcher of any one of claims 1 to 8.
  10. 10. An image pickup apparatus, characterized in that the image pickup apparatus includes the lens assembly of claim 9.

Description

IR-CUT optical filter switcher, lens assembly and image pickup equipment Technical Field The present utility model relates to the field of image capturing apparatuses, and more particularly, to an IR-CUT filter switcher, a lens assembly, and an image capturing apparatus. Background In order to meet the requirement that the camera module can keep clear picture output under different environments, particularly under the condition that the light and brightness difference between daytime and night is very large, different IR filters are needed to be added to adapt to different environments, and in order to ensure that the IR filters have good and self-adaptive effects, the conventional camera module is generally provided with an IR-CUT filter switcher to realize automatic switching of the filters under different environments. The existing IR-CUT filter switcher switches different filters through a plurality of filter switching units, so that the obtained filtered light sources of different types have better image capturing effect, when the filter switching units are too crowded, all parts are easy to interfere when the filters are switched, when the filter switching units are separated, the filter switching units occupy too large space, the IR-CUT filter switcher is too bloated, and all the filters are easy to scratch after foreign matters enter the IR-CUT filter switcher. Disclosure of utility model In view of the above-mentioned shortcomings of the prior art, an IR-CUT filter switcher is provided. The technical scheme includes that the IR-CUT optical filter switcher comprises an upper shell, a lower shell, a plurality of optical filter switching units and a partition plate positioned between the upper shell and the lower shell, wherein the upper shell, the partition plate and the lower shell are connected, a light passing hole is formed in the partition plate, and mounting positions for mounting the optical filter switching units are arranged on at least two of the upper shell, the lower shell and the partition plate. Preferably, the filter switching unit includes a movable frame, one or more filters disposed on the movable frame, and a driving mechanism connected to the movable frame. Preferably, the driving mechanism comprises a motor, a guide rod which is arranged in the installation position at intervals with an output shaft of the motor is arranged in the installation position, a thread groove is formed in the output shaft of the motor, one of the movable frames is arranged on the guide rod in a sliding mode, and a clamping piece which is clamped with the thread groove is arranged at the other end of the movable frame. Preferably, a spiral spring is fixedly sleeved on an output shaft of the motor, and two ends of the spiral spring are of a linear structure. Preferably, the movable frame comprises a frame body with a rectangular plate structure, two mounting grooves are formed in the frame body at intervals, the optical filters are mounted in the corresponding mounting grooves, and groove through holes exposing the corresponding optical filters are formed in the bottoms of the mounting grooves. Preferably, a partition plate groove forming an installation position is recessed in the partition plate, and an avoidance notch avoiding the optical filter switching unit is formed in the partition plate groove. Preferably, the upper shell, the partition plate and the lower shell are detachably connected in sequence from top to bottom. Preferably, the upper shell and the lower shell are respectively provided with a plurality of buckles, the partition plate is provided with a plurality of first bayonets which are mutually buckled with the buckles on the upper shell, and the partition plate is also provided with a plurality of second bayonets which are mutually buckled with the buckles on the lower shell. A lens assembly comprising any one of the above IR-CUT filter switches. An image pickup apparatus including the above lens assembly. The utility model has the beneficial effects that the upper shell and the lower shell are separated by the partition board to form two cavities, the plurality of optical filter switching units are respectively positioned in the two cavities, the partition board is used for separating and installing the optical filter switching units, so that the interference of all parts during optical filter switching caused by crowding of the optical filter switching units is prevented, and meanwhile, after foreign matters enter the IR-CUT optical filter switcher, the foreign matters are prevented from scraping all optical filters. Drawings FIG. 1 is a schematic diagram of the overall tip structure of an embodiment of the present utility model; FIG. 2 is a schematic view of the overall bottom structure of an embodiment of the present utility model; FIG. 3 is a schematic view of the internal structure of the upper cavity according to an embodiment of the present utility model; FIG. 4 is a schematic v