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Lens, projection ray machine and near-to-eye display system

A lens and display technology, applied in the field of display projection, can solve problems such as unclear projection of curved images

Active Publication Date: 2021-08-13
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present application provides a lens, a projection light machine, and a near-eye display system. The lens can be applied to the projection light machine to modulate the optical signal emitted by the projection light machine through optical fiber scanning, and solve the problem of curved surface image projection generated by optical fiber scanning. unclear questions

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  • Lens, projection ray machine and near-to-eye display system
  • Lens, projection ray machine and near-to-eye display system
  • Lens, projection ray machine and near-to-eye display system

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Embodiment Construction

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0025] An embodiment of the present application provides a projection light machine, which is used to generate a virtual image. Such as figure 1 as shown, figure 1 The first structural intention of the projection light machine provided by the embodiment of the present application. The light projector 100 can project a virtual image. The optical projection machine 100 includes a display 110 and a lens 120, the lens 120 is arranged on one side of the display 110, the display 11...

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Abstract

The embodiment of the invention provides a lens, a projection light machine and a near-to-eye display system, the lens is used for receiving an optical fiber scanning signal sent by a display and modulating the optical fiber scanning signal, and the lens comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens which are sequentially arranged in the optical axis direction, the first lens is used for converging or diverging an optical fiber scanning light signal emitted by the display to form a first transmission light signal, the second lens is used for converging the first transmission light signal to form a second transmission light signal, and the third lens is used for diverging the second transmission light signal to form a third transmission light signal; the fourth lens is used for diverging the third transmission light signal to form a fourth transmission light signal, and the fifth lens is used for converging the fourth transmission light signal to form a fifth transmission light signal. According to the embodiment of the invention, the lens can modulate an optical fiber scanning signal sent by a display. The problem that a curved surface image generated by optical fiber scanning is not clear after projection is solved.

Description

technical field [0001] The present application relates to the technical field of display projection, in particular to a lens, a projection light engine and a near-eye display system. Background technique [0002] With the continuous development of augmented reality technology, head-mounted augmented reality devices such as smart glasses or smart masks are widely accepted and applied by users. [0003] Augmented reality equipment can usually include a projector, and the projector can generate virtual images. The projector can generate virtual images through the display mode of optical fiber scanning. Since the optical fiber scanning method is to control the scanning optical fiber to vibrate regularly, the incident light beam Therefore, the vibration of the scanning optical fiber causes the optical fiber scanning image source to be a curved surface, and the curved surface image is likely to cause unclear imaging after being projected and enlarged. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): G02B26/10G03B21/14G02B27/01
CPCG02B26/103G03B21/142G02B27/0101
Inventor 潘俊旭
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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