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Lens component of projector

A lens assembly and projector technology, applied in the field of projection systems, can solve problems such as unfavorable assembling work efficiency of projector lens assemblies, and achieve the effect of improving work efficiency

Inactive Publication Date: 2009-04-22
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned lens rings are set on the lens body by screw connection. During the assembly process, due to the use of special tools such as screwdrivers, the traditional screw connection method is not conducive to improving the work efficiency of workers in assembling projector lens components.

Method used

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  • Lens component of projector
  • Lens component of projector
  • Lens component of projector

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0014] see figure 1 and figure 2 , is a projector lens assembly 100 according to the first embodiment of the present invention, which includes a lens body 10 , at least one lens group 20 , and a lens ring 30 . The at least one lens group 20 is accommodated in the lens body 10 , and the lens ring 30 is sleeved on the lens body 10 . This embodiment only enumerates the situation that the projector lens assembly 100 includes one lens group 20 . Of course, in order to achieve zooming, the projector lens assembly is not limited to only one lens group in this embodiment, and usually multiple lens groups are used.

[0015] Along the optical path direction of the projector, the lens body 10 sequentially has a fixing portion 12 , a body portion 14 and a connecting portion 16 connected with the lens ring 30 . The fixing part 12 has two wings 122, 124, the two wings 122, 124 are respectively provided with through holes 126, 128, screws (not shown) pass through the through holes 126, 12...

no. 2 example

[0019] see Figure 4 , is the projector lens assembly 200 of the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the number of the guide groove 34', the engaging portion 36 and the protrusion 166 are all three. The guide groove 34' is a groove, and the guide groove 34' has a first side 342', a second side 344' opposite to the first side 342' and a clip The bottom surface 346 is disposed between the first side 342' and the second side 344'. The bottom surface 346 is recessed relative to the inner surface of the lens ring 30 toward a direction away from the center of the lens ring 30 . The maximum distance between the first side 342 ′ and the engaging portion 36 along the circumferential direction of the lens ring 30 is smaller than the maximum length of the protrusion 166 along the circumferential direction of the lens ring 30 , and the engaging portion 36 and the second engaging portion 36 The maximum distan...

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PUM

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Abstract

The invention discloses a projector lens component which comprises at least one lens group, a lens body with a connecting part and a lens collar. The lens group is accommodated in the lens body and the lens collar is sheathed on the connecting part of the lens body. At lest one projection is arranged on the outer surface of the connecting part of the lens body. The inner surface of the lens collar is provided with at least one bearing base, at least one guide slot and at least one clamping part matched with the projection. The corresponding guide slot is connected with the corresponding bearing base, and the corresponding clamping part is positioned in the corresponding guide slot. The corresponding bearing base, the corresponding guide slot and the corresponding clamping part form an accommodation space to accommodate the corresponding projection, the corresponding projection leans against the corresponding clamping part, and the lens body leans against the bearing base. The projector lens component accommodates the corresponding projection by the accommodation space formed by the corresponding bearing base, the corresponding guide slot and the corresponding clamping part so as to cause the lens body to be sheathed with the lens collar, which facilitates assembly of the projector lens component and improves the assembly efficiency.

Description

technical field [0001] The invention relates to a projection system, in particular to a projector lens assembly used in the projection system. Background technique [0002] With the vigorous development of science and technology, projection technology has become increasingly mature, and the application fields of projectors have become wider and wider, such as in commercial fields such as frequent conference explanations, tour exhibitions and promotional activities, as well as in school teaching, academic Discussions and other educational fields, as well as home theaters and other home fields. [0003] Generally, a projector includes components such as a light source device, a light modulation device, and a projector lens assembly. Wherein, the projector lens assembly includes a lens body and a lens ring sleeved on the lens body. Usually, a threaded hole is provided on the lens ring, and a corresponding threaded hole is provided on the lens body, and the screw passes throug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/02G03B21/14
Inventor 温文福
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD