Imaging displacement device and manufacturing method thereof
A displacement device and imaging technology, applied in projection devices, instruments, optics, etc., can solve problems such as difficult to simplify the manufacturing process and overall structure, limited service life of component materials, and affect light efficiency, etc., to achieve simple structure and composition, improved noise, The effect of multiple light efficacy
Active Publication Date: 2022-07-29
YOUNG OPTICS
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Problems solved by technology
However, the conventional optical path adjustment mechanism tends to generate high-frequency noise when swinging, and the service life of the component material is limited under high-speed vibration, and the light performance will be affected by the limitation of the transition time.
Furthermore, once the size requirements of passive components (such as light valves) change, it is necessary to redesign and verify the material and structural composition accordingly, making it difficult to simplify the manufacturing process and the overall structure
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[0021] The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to the drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or rear, etc., are only for referring to the directions of the attached drawings. Accordingly, the directional terms used are illustrative and not limiting of the present invention.
[0022] The disclosure in the following embodiments discloses an imaging displacement module, which can be used in different optical systems (such as display devices, projection devices, etc.) to adjust or change the optical path to provide, for example, increase imaging resolution, improve image quality ( Effects such as eliminating dark areas, softening image edges) are not limited, and the setting position and configuration of the imaging displacement module in the optical system are not ...
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An imaging displacement device includes a projection lens, a first grating that can be switched between a diffractive state and a non-diffractive state, and an optical element provided with a reflective surface. The projection lens is provided with a lens group, and the lens group includes a first lens and a second lens. The first grating and the optical element are both arranged in the projection lens, and the optical element is located downstream of the optical path of the first grating. The first lens is the lens closest to the optical element, and the distance from the first grating to the reflective surface on the optical axis of the projection lens is smaller than the distance from the first lens to the reflective surface on the optical axis.
Description
technical field [0001] The invention relates to an imaging displacement device and a manufacturing method of the imaging displacement device. Background technique [0002] In recent years, various image display technologies have been widely used in daily life. In the image display device, for example, an imaging displacement module can be arranged to change the light path of light in the device, so as to provide various effects such as improving the imaging resolution and improving the picture quality. The conventional imaging displacement module is usually an optical path adjustment mechanism including a moving element and a fixed element. The optical path adjustment mechanism makes the optical element oscillate reciprocally so as to slightly displace the pixel image, which is provided under the condition that the human eye's vision persists. The effect of increasing the image resolution. However, the conventional optical path adjustment mechanism is prone to generate hig...
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IPC IPC(8): G03B21/00G03B21/14G02F1/1334
CPCG03B21/006G03B21/142G02F1/1334
Inventor 陈明驰许雅伶
Owner YOUNG OPTICS