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Thermal out-of-focus compensation method, storage medium and projection equipment

A technology of projection equipment and compensation method, which is applied in the direction of using the image reproducer of the projection device, the parts and electrical components of the color TV, etc., can solve the problems such as user interference, and achieve the effect of improving the satisfaction

Active Publication Date: 2021-11-02
FENGMI TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method is a compensation measure after the user has found that the image is not clear, and the process of focusing will also cause interference to the user

Method used

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  • Thermal out-of-focus compensation method, storage medium and projection equipment
  • Thermal out-of-focus compensation method, storage medium and projection equipment
  • Thermal out-of-focus compensation method, storage medium and projection equipment

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Embodiment Construction

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0058] Such as figure 1 As shown in the schematic step diagram of a thermal defocus compensation method provided by an embodiment of the present invention, the method includes the following steps:

[0059] 110. Obtain the pre-stored thermal defocus curve of the projection device; wherein, the thermal defocus curve is a parameter-time curve obtained in advance that the parameters of multiple projection device samples change with the start-up operation time,...

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Abstract

The invention relates to a thermal out-of-focus compensation method. The thermal out-of-focus compensation method comprises the following steps: acquiring a pre-stored thermal out-of-focus curve of projection equipment, wherein the thermal out-of-focus curve is obtained by pre-acquiring a parameter-time curve of parameters of a plurality of projection equipment sample machines along with the change of startup running time and fitting the parameter-time curve of all the projection equipment sample machines; and determining a focusing scheme of the projection equipment according to the thermal out-of-focus curve. According to the invention, the thermal out-of-focus degree of the projection equipment can be predicted in advance, and the focusing scheme of projection is determined in advance according to the thermal out-of-focus degree of the projection equipment, so that a user is prevented from seeing an unclear picture, the normal use of the user is prevented from being interfered, and the satisfaction degree of the user is improved. The invention further relates to a storage medium and projection equipment.

Description

technical field [0001] The invention relates to the field of projection equipment, in particular to a thermal defocus compensation method, storage medium and projection equipment. Background technique [0002] After the projection device is turned on, there is always a process in which the internal temperature rises until it reaches thermal equilibrium. Therefore, before the thermal balance is reached after starting up, as the internal temperature rises, the size and position of the lens barrel, lens and other parts will change slightly due to the thermal expansion and contraction of the material, resulting in a change in the focal length of the lens, making the original clear picture It becomes blurred due to focal length drift, and the user needs to manually refocus to restore a clear picture. [0003] The prior art has disclosed a projector for thermal defocus compensation. The projector detects the temperature value of the projection lens by setting a temperature sensor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31
CPCH04N9/317
Inventor 谭大治江浩
Owner FENGMI TECH
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