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Projector emitting laser light of multiple colors and optical axis adjusting method for the projector

一种投影仪、发射方向的技术，应用在投影仪及该投影仪的光轴调整领域，能够解决多色激光光光学轴错位等问题

Inactive Publication Date: 2012-07-04
FUNAI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Because the light source and the lens holder are fixed together with an adhesive in a three-point contact, curing shrinkage may occur in the adhesive due to temperature, etc. optical axis misalignment

Method used

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  • Projector emitting laser light of multiple colors and optical axis adjusting method for the projector
  • Projector emitting laser light of multiple colors and optical axis adjusting method for the projector
  • Projector emitting laser light of multiple colors and optical axis adjusting method for the projector

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Effect test

Embodiment Construction

[0031] Embodiments of the present invention will be described below with reference to the drawings.

[0032] (structure)

[0033] figure 1 The structure of the projector of the embodiment of the present invention is shown.

[0034] refer to figure 1, The projector 100 includes a front-end FPGA (Field Programmable Gate Array) 310, a digital signal processor 320, an operation panel 330, a back-end block 340, an SDRAM (Synchronous Dynamic Random Access Memory) 344, and a video RAM (Random Access Memory) 345 , laser control circuits 351 , 352 and 353 , laser output unit 5 , galvanometer mirror 372 and driver 373 . The driver 373 includes, for example, a driver motor, a coil, and the like.

[0035] The front-end FPGA 310 includes a data / level converter 314 , a timing controller 311 , a data controller 312 and a bit-to-data converter 313 . The digital signal processor 320 includes a mirror servo block 321 and a converter 322 .

[0036] The operation panel 330 is provided on ...

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Abstract

The present invention relates to a projector reflecting laser of multiple colors and an optical axis adjusting method therefor. A first light output unit (31)integrally has a first light source (11) and a first prism (17), a second light output unit integrally has a second light source (13) and a second prism (18), and a third light output unit (33) integrally has a third light source (15) and a third prism (19). A first surface (34) of the first prism (17) and a second surface (35) of the second prism (18) are adhered together by an adhesive with a first film located therebetween, and first film (20) passes green laser light and reflects blue laser light. A third surface (36) of the second prism (19) and a fourth surface (37) of the third prism (19) are adhered together by an adhesive with a second film located therebetween, and second film (21) passes the green laser light and the blue laser light, and reflects red laser light.

Description

technical field [0001] The present invention relates to a projector and a method for adjusting the optical axis of the projector, and more particularly relates to a projector emitting polychromatic laser light and a method for adjusting the optical axis of the projector. Background technique [0002] Various techniques have been proposed to reduce the size of the projector. [0003] For example, Japanese Patent Publication No. 2006-527392 has disclosed a projector integrally having a light source chip and an optically transparent beam shaping element substantially surrounding a hemispherical area surrounding the light source chip. [0004] Japanese Patent Publication No. 2005-208183 discloses a projector that guides the luminous flux emitted from a three-color (i.e. RGB) LED (light-emitting diode) light source into a light guide after combining these luminous fluxes by a color combination device, and then transfers the luminous flux from the light The light guide of the gui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/00G03B21/14G02B27/18
CPCG03B21/2033G03B21/14G02B27/1073G02B27/145H04N9/3152H04N9/3129G02B27/104G03B21/2066G03B21/208G03B33/12
Inventor 高桥裕松原宏树西垣宏村山学
Owner FUNAI ELECTRIC CO LTD