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A camera switching module and its manufacturing method

A technology for switching modules and manufacturing methods, which is applied in the direction of optical filters, optics, and instruments for photography, and can solve problems such as mutual interference and affecting the effect of day and night switching of cameras, so as to reduce stray light, improve the effect of day and night switching, and reduce The effect of stray light interference

Active Publication Date: 2020-11-03
HANGZHOU MDK OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the infrared cut-off filter and the full-spectrum optical glass are installed side by side on a rectangular sliding frame to slide for switching, but the stray light between the side-by-side infrared cut-off filter and the full-spectrum optical glass interferes with each other, which in a certain To a certain extent, it affects the day and night switching effect of the camera

Method used

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  • A camera switching module and its manufacturing method
  • A camera switching module and its manufacturing method
  • A camera switching module and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A camera switching module, such as Figure 1~3As shown, it includes an infrared cut filter 1 and a full-spectrum optical glass 3 installed side by side. The infrared cut-off filter 1 and the full-spectrum optical glass 3 are distributed on both sides of the separation line AB, and the light-shielding layers arranged on both sides of the separation line AB separate the infrared cut-off filter 1 and the full-spectrum optical glass 3 to form independent transparent The light area reduces the stray light interference between each other and improves the day and night switching effect of the camera. The thickness of the light-shielding layer is 0.2-0.5mm.

[0037] In this embodiment, the upper surface of the infrared cut-off filter is provided with a "return" shaped light-shielding layer 2 along the edge of the surface to define and form a light-transmitting area. The "back" shape shading layer 4 in the area, the infrared cut-off filter and the full-spectrum optical glass i...

Embodiment 2

[0040] A camera switching module, such as Figure 4~6 As shown, it includes an infrared cut filter 1 and a full-spectrum optical glass 3 installed side by side. The infrared cut-off filter 1 and the full-spectrum optical glass 3 are distributed on both sides of the separation line AB, and the light-shielding layers arranged on both sides of the separation line AB separate the infrared cut-off filter 1 and the full-spectrum optical glass 3 to form independent transparent The light area reduces the stray light interference between each other and improves the day and night switching effect of the camera. The thickness of the light-shielding layer is 0.2-0.5mm.

[0041] In this embodiment, the upper surface of the infrared cut-off filter is provided with an "inverted L"-shaped light-shielding layer 2 along the edge of the surface, defining and forming a light-transmitting area, and the upper surface of the full-spectrum optical glass is provided with an The "L"-shaped light-shie...

Embodiment 3

[0044] A camera switching module, such as Figure 7~9 As shown, it includes an infrared cut filter 1 and a full-spectrum optical glass 3 installed side by side. The infrared cut-off filter 1 and the full-spectrum optical glass 3 are distributed on both sides of the separation line AB, and the light-shielding layers 2 and 4 arranged on both sides of the separation line AB make the infrared cut-off filter 1 and the full-spectrum optical glass 3 separately formed The independent light-transmitting area reduces the interference of stray light and improves the day-night switching effect of the camera. The thickness of the light-shielding layer is 0.2-0.5mm. In this embodiment, there is no annular light-shielding layer and side light-shielding layers.

[0045] The manufacturing method of the above-mentioned camera switching module includes the following process: install the infrared cut filter and the full-spectrum optical glass side by side on both sides of a separation line, for...

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Abstract

The invention provides a camera switching module and its manufacturing method. The infrared cut-off filter and the full-spectrum optical glass are separated to form independent light-transmitting regions through the light-shielding layers arranged on both sides of the separation line, which reduces mutual interference. Stray light interference improves the day and night switching effect of the camera.

Description

technical field [0001] The invention belongs to the field of camera modules, in particular to a camera switching module and a manufacturing method thereof. Background technique [0002] At present, day and night mode cameras in the surveillance industry generally adopt the method of switching filters to adapt to different light environments during the day and at night. When the light is sufficient during the day, the circuit control board drives the switcher to switch to the infrared cut filter to work, and the CCD restores the true color. When the light is insufficient at night, the circuit control board drives the switcher to switch to full-spectrum optical glass, which senses infrared light at night. The auxiliary light of the lamp makes the CCD fully utilize all the light, thus greatly improving the low-light performance of the infrared camera, and the whole picture is clear and natural. [0003] The realization of the above functions mainly depends on the conversion mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B17/12G03B11/00
CPCG03B17/12G03B11/00
Inventor 李涛葛文志翁钦盛矢岛大和王懿伟
Owner HANGZHOU MDK OPTO ELECTRONICS CO LTD
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