Light stimulation device

Abstract

The invention discloses a light stimulation device, which can be applied to the fields of biology, chemistry, life sciences and the like. The structure of the device is that a laser, a scanning unit and a lens are arranged sequentially and are coincident with the center of an optical axis; the center of the scanning unit is positioned on an object focal plane of the lens; and the scanning unit comprises two acousto-optic deflection devices arranged orthogonally. The device adopts the acousto-optic deflection devices as the scanning elements and can carry out high-speed random light stimulation on cell biological samples comprising nerve cells, tissues and the like so as to carry out various psychological research. The device adopts the optical fiber and the optical fiber bundle to guide light to make the system miniaturized and convenient for integration, and is very convenient to carry out cooperative work with other systems such as the microscope and the patch clamp.

Description

technical field [0001] The invention relates to a light stimulation device, which can be applied in the fields of biology, chemistry, life science and the like. Background technique [0002] The development of optical technology, especially laser technology, has greatly promoted the progress of society, and the combination of laser technology and biotechnology has provided new ideas and new ways for humans to understand and reveal the mysteries of life. [0003] In 1978, Hoffman Adams proposed that molecules can be caged to inhibit their molecular activity, and the concept of caged was proposed for the first time. In 1993, Adams et al. believed that many substances-photosensitive caged molecules have their caged compounds, also known as photolabile caged compounds, which are artificially synthesized compounds that modify biologically active molecules with hidden groups. When it is in a caged state, its function is closed; when it is exposed to a specific wavelength of light...

AI Technical Summary

Problems solved by technology

However, in these patent documents, two acousto-optic deflectors are introduced into the converging optical path through two sets of 4f systems, making the system huge; the system uses a non-optical fiber method to introduce laser light into the scanning unit, making the system not compact enough, inconvenient to integrate, and miniaturized ; In addition, these patents did not propose the concepts and descriptions of light uncaging and light stimulation, nor did they explain the methods, processes, and operations of light stimulation

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