Rotation switching method and device of multiple optical filters of imaging sensor

An imaging sensor and switching device technology, applied in the direction of using optical devices, measuring devices, installation, etc., can solve the problems that cannot be used in the security industry requiring high reliability, the need to give commutation current, and the complex driving circuit, etc. The switching technology is unstable, the low-light performance is improved, and the volume is small and flexible.

Inactive Publication Date: 2010-08-18
谭懋
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Bring serious consequences - the filter used day and night is reversed or not in place, this driving conversion method is called blind drive
And the driving circuit is co

Method used

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  • Rotation switching method and device of multiple optical filters of imaging sensor
  • Rotation switching method and device of multiple optical filters of imaging sensor
  • Rotation switching method and device of multiple optical filters of imaging sensor

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with accompanying drawing:

[0028] The invention provides a brand new multi-filter rotary switching device, which can be applied to video cameras, DV, digital cameras and other equipment.

[0029] As shown in the figure, the device is mainly composed of an upper cover 1, a body 2, and a base 3. The upper cover 1 and the base 3 are on both sides of the body 2, and the upper cover 1 has a lens holder 11 for installing a lens and a position sensor. 12. The base 3 has a window 31. The body 2 includes a filter rotation switching mechanism 4 and a transmission mechanism 6. The filter rotation switching mechanism 4 is composed of a gear plate 41, a position coding hole 42, and a shaft core 43. The gear plate 41 has a Multi-piece optical filter 5, transmission mechanism 6 is made up of motor 61, screw rod 62, first gear 63, second gear 64, third gear 65, motor 61 can be selected DC motor or stepper motor, mot...

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Abstract

The invention relates to rotation switching method and device of multiple optical filters of an imaging sensor. The device comprises a machine body, a rotation switching mechanism of optical filters, a photoelectric position sensor, a transmission mechanism, multiple optical filters fixed on the rotation switching mechanism of the optical filters and position notches arranged at the edges of the optical filters, wherein a light sensing window is arranged on the machine body, the rotation switching mechanism of the optical filters is arranged on the machine body, the optical filters fixed on the rotation switching mechanism of the optical filters correspond to the light sensing window, and the photoelectric position sensor corresponds to the position notches. The transmission mechanism drives the rotation switching mechanism of the optical filters to rotate, and the optical filters fixed on the rotation switching mechanism of the optical filters are rotated onto the light sensing window.

Description

technical field [0001] The invention relates to a method and device for rotating and switching multiple optical filters of an imaging sensor with a position sensor and accurate switching process. The invention can be applied to video cameras, DVs, digital cameras and other equipment. Background technique [0002] Since the imaging sensor can sense various invisible light in natural light, different filters are used in different places. Sometimes it is necessary to switch multiple filters to meet the requirements of use. For example, a band-pass filter of 380nm to 650nm should be used during the day and at night. 200nm~1000nm, for license plate, for fog penetration, for laser lighting, etc. [0003] Existing optical filter switching devices are generally divided into two types: motor-driven and electromagnetic-driven. But all adopt linear moving type reciprocating switching. Only two filters can be switched. [0004] The existing linear-moving reciprocating switching swi...

Claims

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Application Information

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IPC IPC(8): G02B7/00G01B11/00
Inventor 谭懋
Owner 谭懋
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