Photographic device and its filter module

Abstract

A photographic device and a filter module thereof. The photographing device includes a sensing chip, a lens module, and a filter module. The sensing chip includes a receiving surface with two end edges and two side edges. The filter module is arranged between the receiving surface and the lens module, the filter module includes a filter for filtering light, and a light-shielding layer arranged on the filter, the light-shielding layer A light-transmitting opening for light to pass through is formed, and the light-transmitting opening has a light-transmitting part located in the center, two end edge positioning parts connected to the light-transmitting part and respectively located above the end edges, and two connected to the The light-transmitting parts are respectively located at the side edge positioning parts above the side edges. Wherein, the position of the end edge positioning portion and the side edge positioning portion projected on the receiving surface is spaced from the corresponding end edge and side edge connection. In this way, the light that does not pass through the lens module is not easy to enter the receiving surface of the sensing chip and cause defects in the photographed picture.

Description

technical field [0001] The invention relates to a photographing device and a light filtering module thereof, in particular to a photographing device and a light filtering module thereof capable of avoiding light leakage. Background technique [0002] refer to figure 1 , 2 , an existing photography device 10 includes a sensing module 1 , a holder 2 , a lens module 3 , and a filter module 4 . [0003] The sensing module 1 includes a sensing chip 11, the sensing chip 11 includes a receiving surface 111 for receiving light, the receiving surface 111 has two end edges 111a on opposite sides, and is connected to the end edges 111a between the two side edges 111b on opposite sides. The holder 2 is disposed on the sensing module 1 and forms a fixing portion 21 . The lens module 3 is fixed on the fixing portion 21 of the holder 2 , and the lens module 3 includes a lens light emitting portion 31 at the bottom thereof for transmitting light to the receiving surface 111 of the sensi...

AI Technical Summary

Problems solved by technology

[0005] However, when assembling the aforementioned photographic device 10, if the relative position of the lens module 3 and the receiving surface 111 deviates slightly, the photographic device 10 may enter from the gap between the lens module 3 and the holder 2. excess light, so that the excess light is received by the receiving surface 111 through a light leakage area 421c of the diagonal positioning portion 421b, thereby causing defects in the photographed picture

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