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Projector focusing method based on ultrasonic waves, projector and related products

A focusing method and ultrasonic technology, applied in the field of projectors, can solve the problems of difficult focusing of projectors, being easily affected by the external environment, and long time for automatic focusing of projectors, and achieving the effect of clear display and fast and accurate focusing.

Inactive Publication Date: 2020-02-07
SHENZHEN HUOLE TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, it takes too long for the projector to automatically focus, and it is easily affected by the external environment, such as the laser beam emitted by the projector, so it is difficult to quickly and accurately focus the projector

Method used

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  • Projector focusing method based on ultrasonic waves, projector and related products
  • Projector focusing method based on ultrasonic waves, projector and related products
  • Projector focusing method based on ultrasonic waves, projector and related products

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Embodiment Construction

[0029] The terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or devices.

[0030] Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the sam...

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Abstract

The embodiment of the invention discloses a projector focusing method based on ultrasonic waves, a projector and a related product. The projector focusing method is applied to the projector, and the projector comprises an ultrasonic module and a camera module. The method comprises the following steps of: starting the projector, performing photographing through camera module, obtaining captured images, determining a projection interface of the projector according to the shot image; detecting a first distance between a projector and a projection interface through an ultrasonic module; determining the focusing parameters of the camera module according to the first distance, and carrying out focusing through the camera module according to the focusing parameters so as to achieve clear displayof the projection interface. In this way, the distance between the projector and the projection interface can be rapidly and accurately detected through ultrasonic waves, and then the projector can conduct focusing more rapidly and accurately.

Description

technical field [0001] The present application relates to the technical field of projectors, in particular to an ultrasound-based projector focusing method and related products. Background technique [0002] Projection technology is widely used in people's daily life. The use of projection systems can be seen everywhere in conferences, teaching or entertainment venues. [0003] In the prior art, it takes too long for the projector to focus automatically, and it is easily affected by the external environment, for example, the laser beam emitted by the projector, so it is difficult to focus the projector quickly and accurately. Contents of the invention [0004] Embodiments of the present application provide an ultrasonic-based projector focusing method, projectors and related products, which can quickly and accurately detect the distance between the projector and the projection interface through ultrasonic waves, thereby allowing the projector to focus more quickly and acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31
CPCH04N9/317
Inventor 梁鉴鹏胡震宇庾波冯军军
Owner SHENZHEN HUOLE TECH DEV CO LTD
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