Image capture system

An image capture system comprises a lens module, a color filter frame, and a cover. The lens module has an image sensor received in the cover. The cover has a threaded hole corresponding to the image sensor. The color filter frame comprises at least one bracket and a fixing frame. The bracket including a color filter is fixed by the fixing frame corresponding to the threaded hole.

BACKGROUND

1. Technical Field

The present disclosure generally relates to image capture systems, and particularly to an image capture system with color filter frame.

2. Description of the Related Art

Image capture systems are commonly used in still cameras, video cameras, land surveying equipment, and other devices. The image capture system mainly comprises a lens module, an image sensor, and a circuit board. A commonly used image capture system includes a color filter fixed above the image sensor by glue which is difficult to clean, inhibiting use of the system. A fixing mechanism of a color filter is required for easy cleaning of the image capture system.

What is needed, therefore, is an image capture system which can be easily cleaned, to ameliorate the described limitations.

DETAILED DESCRIPTION

Embodiments of an image capture system as disclosed are described in detail here with reference to the drawings.

Referring toFIG. 1, an image capture system10in accordance with a first embodiment includes a lens module12, a color filter frame14, and a cover16. The lens module12includes a lens122, an image sensor124, and a circuit board126. The image sensor124is mounted on and electrically connects to the circuit board126. The lens122is threaded in the cover16above the image sensor124with an optical axis focus on the image sensor124. The image sensor124captures the image through the lens122for transmission through the circuit board126.

The cover16includes a cover plate162and a receiving space164. The cover plate162defines a threaded hole166matching the receiving space164for receiving the lens122. The receiving space164receives and fixes the image sensor124and the circuit board126.

The color filter frame14is arranged inside the receiving space164of the cover16and above the image sensor124. The color filter frame14includes at least one bracket142and a fixing frame20. In this embodiment, the color filter frame14includes two brackets142aand142bseparately receiving two color filters18aand18b(seeFIG. 2). The color filters18aand18bcorrespond to the image sensor124, admitting light from the lens122thereto. The color filter18ais fixed on the bracket142aby glue and the color filter18bis fixed on another bracket142bby screw threads in the fixing frame20. The configuration of the fixing frame20matches the bracket142b. The fixing frame20is planar and includes a location rim202and a fixing rim204opposite to the location rim202at the circumference. The location rim202includes at least one location piece206perpendicular to the plane of the fixing frame20(seeFIG. 3).

The location piece206includes a location hole2062, and the rim of the bracket142bcorresponding to the location hole2062includes a post144received in the location hole2062of the location piece to fix one end of the fixing frame20on the bracket142b. The fixing rim204includes at least one fixing hole208, the rim of the bracket142bcorresponding to the fixing hole208includes a fastening threaded hole146. A fastener22passes through the fixing hole208and is received in the fastening threaded hole146to fix another end of the fixing frame20on the bracket142, stably attaching the color filter18binside the bracket142b.

Referring toFIG. 2, the fixing frame20is fixed on the bracket142bcorresponding to the threaded hole166of the cover16. The diameter of the threaded hole166exceeds that of the bracket142bof the color filter frame14. The fixing frame20can be assembled and disassembled easily through the threaded hole166. For cleaning of the image sensor124, the lens122is detached by unscrewing from the threaded hole166to remove the fastener22and release the post144from the location hole2062of the location piece206to remove the fixing frame20(as shown inFIG. 4). The color filter18bcan be removed from the fixing frame20easily, and the image sensor124easily cleaned through the threaded hole166.