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Automatic focusing method of projector and projector

An automatic focusing and projector technology, applied in the field of projectors, can solve the problems of needing to focus pictures, interrupting the viewing process, etc., to achieve the effect of improving user experience

Active Publication Date: 2022-01-07
ANKER INNOVATIONS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the autofocus process of the current projector is very slow, and a focus map is required, which will interrupt the entire viewing process

Method used

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  • Automatic focusing method of projector and projector
  • Automatic focusing method of projector and projector
  • Automatic focusing method of projector and projector

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Embodiment Construction

[0020] In order to make the objects, technical solutions, and advantages of the present application more apparent, exemplary embodiments according to the present application will be described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described here. Based on the embodiments of the present application described in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0021] First, refer to figure 1 An autofocus method 100 for a projector according to an embodiment of the present application is described. Such as figure 1 As shown, the autofocus method 100 for a projector may include t...

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Abstract

The invention discloses an automatic focusing method of a projector and the projector. The method comprises the following steps of calculating a projection distance based on the measurement data of a distance measuring part of the projector; calculating the size of a picture projected by the projector based on the projection distance and according to the projection ratio of a lens module of the projector; according to the characteristics of a focusing motor and a lens module of the projector, calculating the driving parameters of the focusing motor based on the size of the picture; and controlling the focusing motor to drive the lens module to move based on the driving parameters of the focusing motor so as to realize automatic focusing. According to the automatic focusing method of the projector and the projector, the automatic focusing can be quickly realized, and a film watching process is not interrupted because a focusing image does not need to be popped up through a camera, so that the user experience is improved.

Description

technical field [0001] The present application relates to the technical field of projectors, and more particularly relates to an automatic focusing method of a projector and the projector. Background technique [0002] At present, the automatic focusing method of projectors is generally similar to the "contrast" focusing on digital cameras. During the entire focusing process, the focusing motor needs to continuously move the lens to find contrast points in the picture until the picture is clear. Therefore, the autofocus process of the current projector is very slow and requires a focus map, which will interrupt the entire viewing process. [0003] Therefore, a new autofocus method for projectors is needed to solve the above problems. Contents of the invention [0004] According to one aspect of the present application, there is provided an autofocus method for a projector, the method comprising: calculating the projection distance based on the measurement data of the dist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/53
CPCG03B21/53
Inventor 史振中
Owner ANKER INNOVATIONS TECH CO LTD