Lens focusing assembly and projector
A projector and focusing technology, which is applied in the field of projectors, can solve the problems of focusing design that cannot accommodate mechanical parts, etc., and achieve the effect of simple structure, small occupied space and easy operation
Inactive Publication Date: 2021-04-02
IVIEW DISPLAY SHENZHEN CO LTD
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Problems solved by technology
[0005] In micro-projectors, due to the limitation of structural size, the size of the optical machine is often very compact, making it impossible to accommodate more mechanical components for lens focusing design
Method used
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[0023] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is expressed as being "fixed" / "installed" on another element, it may be directly on the other element, or there may be one or more intervening elements therebetween. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "outer", "vertical", "horizontal" etc. used in this specification is based on the orientation or positional relationship shown in the drawings, only It is for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or elem...
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The invention relates to the technical field of projectors, and discloses a lens focusing assembly and a projector. The lens focusing assembly comprises a lens barrel, a focusing ring, a limiting structure, and a moving assembly, wherein the lens barrel is provided with a barrel body and a limiting structure, the barrel body defines an accommodating space, and a through groove is formed in the barrel body; the focusing ring sleeves the barrel body and can rotate around the barrel body, a groove is formed in the focusing ring, and the groove is formed along a section of spiral line; the limiting structure prevents the focusing ring from moving along the axis of the barrel body; the moving assembly comprises a supporting piece and a matching piece, the supporting piece is used for fixing thelens and located in the accommodating space, and the matching piece extends from the supporting piece, penetrates through the through groove and is matched with the groove; and when the focusing ringrotates around the barrel body, the groove is matched with the matching piece and drives the matching piece to move back and forth along the through groove, and the matching piece drives the supporting piece to move in the accommodating space along the axis of the barrel body. According to the lens focusing assembly, the position of the lens can be adjusted through cooperation of the lens barrel,the focusing ring and the moving assembly, and therefore the lens focusing assembly is simple in structure, easy to operate and small in occupied space.
Description
technical field [0001] The invention relates to the technical field of projectors, in particular to a lens focusing assembly and a projector. Background technique [0002] A projector, also known as a projector, is a device that can project images or videos onto a screen. It can be connected to a computer, DV, etc. through different interfaces to play corresponding video signals. [0003] Projectors are widely used in homes, offices, schools and entertainment venues. With the vigorous development of the projection industry, projectors have penetrated into the daily life of ordinary people, and various projectors can be seen everywhere around us. With the rapid development of the industry, projection technology has also been continuously innovated, and various new applications have emerged as the times require. [0004] Micro projector is a new type of projection product developed in recent years that uses LED or laser as light source and LCOS or DMD as display chip. It has...
Claims
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IPC IPC(8): G02B7/04G03B21/14
CPCG02B7/04G03B21/142
Inventor 梅良丁明内朱炜湛杨伟樑高志强
Owner IVIEW DISPLAY SHENZHEN CO LTD