High-tone-quality projection apparatus capable of taking full advantage of optical engine space

A technology of optical engine and projection device, which is applied in optics, projection device, data recording, etc. It can solve the problems of large overall volume and inability to combine two working spaces into one, and achieve the effects of reducing volume, improving sound quality, and improving sound quality

Pending Publication Date: 2018-07-20
CHENGDU JIUTIAN HUAXIN TECH CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a high-quality projection device that makes full use of the optical engine space, which solves the technical problem that the combination of the audio equipment and the projection device cannot realize the combination of the two working spaces, resulting in a large overall volume

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-tone-quality projection apparatus capable of taking full advantage of optical engine space
  • High-tone-quality projection apparatus capable of taking full advantage of optical engine space
  • High-tone-quality projection apparatus capable of taking full advantage of optical engine space

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0028] A high-sound quality projection device that makes full use of the optical engine space, including a projector and an audio, the projector includes an illumination system and an imaging system, the illumination system is arranged in cavity A3, and the imaging system is arranged in cavity B10 The lighting system includes an LED light source 5 arranged on the side wall of the cavity A3, a light guide body 6 arranged inside the cavity A3 and connected with the LED light source 5, and the light guide body 6 is arranged at the light exit port There is a Fresnel lens A7, the cavity A3 and the cavity B10 are both closed cavities, and the side wall of the cavity A3 is provided with a heat-insulating glass 4 that transmits light from the Fresnel lens A7. The light guide The air inside and outside the body 6 is of equal pressure. The acoustic speaker 2 is fixed on the side wall of the cavity A3 or the cavity B10, and the rear half of the speaker 2 is located in the cavity; the light...

specific Embodiment 2

[0029] There are 5 ways to arrange the horn 2 and the elongated through hole 8.

[0030] Method 1: The long through hole 8 is connected to the cavity B10 (such as figure 1 (Shown), the horn 2 can be arranged in the cavity A3 or the cavity B10;

[0031] Method 2: The horn 2 is arranged on the side wall of the cavity A3, and neither the cavity A3 nor the cavity B10 is provided with long through holes (such as figure 2 Shown), all sealed;

[0032] Method 3: The horn 2 is arranged on the side wall of the cavity A3, and the cavity A3 is provided with a long through hole 8 (such as image 3 Shown), the cavity B10 is sealed;

[0033] Method 4: The horn 2 is arranged on the side wall of the cavity B10, and neither the cavity A3 nor the cavity B10 is provided with long through holes (such as Figure 4 As shown, all sealed;

[0034] Method 5: The horn 2 is arranged on the side wall of the cavity B10, the cavity A3 is sealed, and the cavity B10 is provided with a long through hole 8 (such as Fig...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a high-tone-quality projection apparatus capable of taking full advantage of optical engine space. The high-tone-quality projection apparatus comprises a projector and a sound;the projector comprises an illumination system and an imaging system; the illumination system is arranged in a cavity A, and the imaging system is arranged in a cavity B; the illumination system comprises an LED light source arranged on the side wall of the cavity A and a light guide body arranged in the cavity A and connected with the LED light source; a Fresnel lens A is arranged in the light ray exit port of the light guide body; the cavity A and the cavity B are both sealed cavities; thermal insulation glass for the emergent light rays of the Fresnel lens A is arranged on the side wall ofthe cavity A; the air inside and outside the light guide body are isobaric; and a loudspeaker of the sound is fixedly arranged on the side wall of the cavity A or the cavity B. By virtue of the high-tone-quality projection apparatus, integration of the projector and sound working spaces is realized, thereby repeatedly utilizing the non-compressible space occupied by the projection apparatus lightpath to the maximum degree so as to form a cavity needed by the loudspeaker.

Description

Technical field [0001] The invention relates to the technical field of liquid crystal projectors, in particular to a high-sound quality projection device that makes full use of the optical engine space. Background technique [0002] A projector, also known as a projector, is a device that can project images or videos onto the screen. It can be connected to computers, VCDs, DVDs, BDs, game consoles, DVs, etc. through different interfaces to play corresponding video signals. LCD liquid crystal projector is a type of projector. LCD projector has the advantages of good color reproduction, high resolution, small size and light weight. It is also very convenient to carry. It is currently the mainstream product in the projector market. [0003] At present, projection devices based on single-chip LCD liquid crystal technology generally include light source components (such as light sources, reflectors, etc.), incident light guide components (usually convex lenses, condenser lenses, reflect...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G03B31/00
CPCG03B31/00
Inventor 张锦
Owner CHENGDU JIUTIAN HUAXIN TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap