CN210605334U - Optical engine for projector - Google Patents
Optical engine for projector Download PDFInfo
- Publication number
- CN210605334U CN210605334U CN201921828056.0U CN201921828056U CN210605334U CN 210605334 U CN210605334 U CN 210605334U CN 201921828056 U CN201921828056 U CN 201921828056U CN 210605334 U CN210605334 U CN 210605334U
- Authority
- CN
- China
- Prior art keywords
- light source
- fresnel lens
- backlight
- liquid crystal
- crystal display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Projection Apparatus (AREA)
- Liquid Crystal (AREA)
Abstract
The utility model discloses an optical engine for projector, which comprises an imaging lens, reflective glass, a liquid crystal display unit, an imaging Fresnel lens, a heat-insulation brightness-enhancement glass unit, a backlight Fresnel lens, a diffuse reflection light cup and a LED light source module, wherein the LED light source module is provided with a heat dissipation module, the LED light source module is used for emitting an LED light source, and the transmission path of the light source is provided with the diffuse reflection light cup; the diffuse reflection light cup is provided with a backlight Fresnel lens, and the diffuse reflection light cup is based on the diffuse reflection principle and enables the LED small-area light source to be uniform on the backlight Fresnel lens; the backlight Fresnel lens is provided with a heat-insulation brightening glass unit and a liquid crystal display unit, the backlight Fresnel lens converges a light source and is used for converging a backlight source to the right back of the liquid crystal display unit, and the heat-insulation brightening glass unit is used for recycling reflected light and isolating heat radiation of the light source. The utility model discloses carry out optical structure collection cooling system improvement to monolithic LCD projector, increase LED lamp source and LCD screen live time.
Description
Technical Field
The utility model relates to a projecting apparatus field specifically is an optical engine for projector.
Background
A projector is an optical instrument that magnifies the contour of a workpiece using an optical element and projects it onto a screen. The projector temple configuration can be divided into three systems: the optical system (optical engine), the heat dissipation system and the circuit system, wherein the optical system is the core, because it directly determines the picture quality that can be achieved by the projector. The optical engine system is an integral body composed of several parts, and the chip, lens and optical path design are all included in the integral body.
The existing single-chip optical engine has a single appearance without change and a poor heat dissipation system, which is likely to cause accelerated aging time of the LED light source and the LCD screen.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an optical engine for projector to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an optical engine for a projector comprises an imaging lens, reflective glass, a liquid crystal display unit, an imaging Fresnel lens, a heat-insulation brightening glass unit, a backlight Fresnel lens, a diffuse reflection light cup and an LED light source module, wherein a heat dissipation module is installed on the LED light source module, the LED light source module is used for emitting an LED light source, and the diffuse reflection light cup is arranged on a transmission path of the light source; the diffuse reflection light cup is provided with a backlight Fresnel lens, and the diffuse reflection light cup is based on the diffuse reflection principle and enables the LED small-area light source to be uniform on the backlight Fresnel lens; the backlight Fresnel lens is provided with a heat-insulation brightening glass unit and a liquid crystal display unit, the backlight Fresnel lens converges a light source and is used for converging a backlight source right behind the liquid crystal display unit, and the heat-insulation brightening glass unit is used for recycling reflected light and isolating heat radiation of the light source; the liquid crystal display unit is used for processing images, an imaging Fresnel lens is arranged on the liquid crystal display unit, and the imaging Fresnel lens is used for reducing the images processed by the liquid crystal display unit to an imaging lens.
Preferably, a reflective glass is disposed on the liquid crystal display unit for placing an image behind the imaging lens.
Preferably, the imaging lens is used for magnifying the image source, and the imaging lens is a 125mm imaging lens.
Preferably, the LED lamp source module is a 120-degree high-light-source LED lamp source module.
Preferably, the heat-insulating brightness-enhancing glass unit comprises heat-insulating glass, and a light homogenizing film and a brightness-enhancing film which are arranged on the heat-insulating glass.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses carry out optical structure collection cooling system improvement to single-chip LCD projector, conveniently realize supplying many first designs, increase LED lamp source and LCD screen live time, just the utility model discloses an optics formation of image route changes and riches changedly to single-chip projector appearance molding, and multiplicable LED lamp source luminance, and its heat radiation can not cause the harm to the liquid crystal display unit.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. an imaging lens; 2. a reflective glass; 3. imaging a Fresnel lens; 4. a liquid crystal display unit; 5. a thermally insulated brightness enhancing glass unit; 6. a backlight Fresnel lens; 7. a diffusely reflecting light cup; 8. an LED light source module; 9. a heat dissipation module.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1, the present invention provides a technical solution: an optical engine for a projector comprises an imaging lens 1, reflective glass 2, an imaging Fresnel lens 3, a liquid crystal display unit 4, a heat-insulation brightening glass unit 5, a backlight Fresnel lens 6, a diffuse reflection light cup 7 and an LED light source module 8, wherein a heat dissipation module 9 is installed on the LED light source module 8, the LED light source module 8 is used for emitting an LED light source, and the diffuse reflection light cup 7 is arranged on a transmission path of the light source; the diffuse reflection light cup 7 is provided with a backlight Fresnel lens 6, and the diffuse reflection light cup 7 is based on the diffuse reflection principle and enables the LED small-area light source to be uniform on the backlight Fresnel lens 6; the backlight Fresnel lens 6 is provided with a heat-insulation brightening glass unit 5 and a liquid crystal display unit 4, the backlight Fresnel lens 6 is used for converging a light source and converging a backlight source to the right back of the liquid crystal display unit 4, and the heat-insulation brightening glass unit 5 is used for recycling reflected light and isolating heat radiation of a light source; the liquid crystal display unit 4 is used for processing images, the imaging Fresnel lens 3 is arranged on the liquid crystal display unit 4, and the imaging Fresnel lens 3 is used for reducing the images processed by the liquid crystal display unit 4 to be smaller than the imaging lens 1.
Further, a reflective glass 2 is disposed on the liquid crystal display unit 4, which is used for placing an image behind the imaging lens 1, and light reflected by the reflective glass 2 is directed toward the imaging lens 1, so that the light reflected by the reflective glass 2 can irradiate the imaging lens 1 and be imaged through the imaging lens 1.
Further, the imaging lens 1 is used for magnifying an image source, and the imaging lens 1 is a 125mm imaging lens.
Further, the heat-insulating brightness-enhancing glass unit 5 comprises heat-insulating glass, and a light-homogenizing film and a brightness-enhancing film which are arranged on the heat-insulating glass.
Further, the LED light source module 8 is a 120-degree high-light-diffusion LED light source module.
The working principle is as follows:
the utility model discloses a LED lamp source module 8 is used for sending the LED light source, the LED light source after sending is based on the diffuse reflection principle and is even in fresnel lens 6 in a poor light with LED small area light source via diffuse reflection light cup 7, and light fresnel lens 6 then gathers the backlight and receives liquid crystal display unit 4 dead back, liquid crystal display unit 4 is used for handling the image, attached polaroid is on the LCD surface not, attach its polaroid in thermal-insulated blast glass unit 5 and be used for the reverberation to recycle, isolated lamp source heat radiation, reflection glass 2 sets up on liquid crystal display unit 4, reflection glass 2 is the contained angle with formation of image fresnel lens 3, adjustment formation of image fresnel lens 3 eccentric position is the picture and shifts up the effect, arrange the image in imaging lens 1's rear through reflection glass 2. The utility model discloses a carry out optical structure collection cooling system improvement to monolithic LCD projector, conveniently realize supplying many first designs, increase LED lamp source and LCD screen live time, just the utility model discloses an optics formation of image route changes and riches changedly to monolithic projector appearance molding, and multiplicable LED lamp source luminance, and its heat radiation can not cause the harm to the liquid crystal display unit.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. An optical engine for a projector is characterized by comprising an imaging lens (1), reflective glass (2), an imaging Fresnel lens (3), a liquid crystal display unit (4), a heat-insulation brightening glass unit (5), a backlight Fresnel lens (6), a diffuse reflection light cup (7) and an LED light source module (8), wherein a heat dissipation module (9) is installed on the LED light source module (8), the LED light source module (8) is used for emitting an LED light source, and the diffuse reflection light cup (7) is arranged on a transmission path of the light source; the backlight Fresnel lens (6) is arranged on the diffuse reflection light cup (7), and the diffuse reflection light cup (7) is based on the diffuse reflection principle and enables the LED small-area light source to be uniform on the backlight Fresnel lens (6); the backlight Fresnel lens (6) is provided with a heat-insulation brightening glass unit (5) and a liquid crystal display unit (4), the backlight Fresnel lens (6) converges light sources and is used for converging backlight sources to the right back of the liquid crystal display unit (4), and the heat-insulation brightening glass unit (5) is used for recycling reflected light and isolating heat radiation of the light sources; the liquid crystal display unit (4) is used for processing images, the liquid crystal display unit (4) is provided with an imaging Fresnel lens (3), and the imaging Fresnel lens (3) is used for reducing the images processed by the liquid crystal display unit (4) to be smaller than the imaging lens (1).
2. An optical engine for a projector according to claim 1, wherein: the reflective glass (2) is arranged on the liquid crystal display unit (4) and is used for placing an image behind the imaging lens (1).
3. An optical engine for a projector according to claim 1, wherein: the imaging lens (1) is used for amplifying an image source, and the imaging lens (1) is a 125mm imaging lens.
4. An optical engine for a projector according to claim 1, wherein: the LED light source module (8) is a 120-degree high-light-source LED light source module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921828056.0U CN210605334U (en) | 2019-10-29 | 2019-10-29 | Optical engine for projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921828056.0U CN210605334U (en) | 2019-10-29 | 2019-10-29 | Optical engine for projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210605334U true CN210605334U (en) | 2020-05-22 |
Family
ID=70696149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921828056.0U Active CN210605334U (en) | 2019-10-29 | 2019-10-29 | Optical engine for projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210605334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112987466A (en) * | 2021-04-07 | 2021-06-18 | 羽力可科技(深圳)有限公司 | Novel optical imaging internal circulation heat dissipation single-chip LCD projector |
-
2019
- 2019-10-29 CN CN201921828056.0U patent/CN210605334U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112987466A (en) * | 2021-04-07 | 2021-06-18 | 羽力可科技(深圳)有限公司 | Novel optical imaging internal circulation heat dissipation single-chip LCD projector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20020015116A1 (en) | Optical system for head mounted display | |
| CN105093390B (en) | Backlight module and display device | |
| CN109164667A (en) | A kind of projector | |
| CN1310086C (en) | Case for optical element, optical device and projector | |
| CN102879949A (en) | Liquid crystal display module | |
| CN210605334U (en) | Optical engine for projector | |
| CN108388014A (en) | A kind of brightness automatic adjusument AR HUD lamp optical systems | |
| CN101701693A (en) | Light-emitting device | |
| CN109407452A (en) | A kind of LCD projection optical system and projector improving light source utilization rate | |
| CN104460209A (en) | Display light machine structure and LCOS display illumination method of display light machine structure | |
| CN208421422U (en) | A kind of augmented reality short distance imaging optical system | |
| CN208938530U (en) | Imaging unit and its automobile head-up-display system | |
| US11546495B2 (en) | Camera module with a reflector mounted in a display device | |
| CN207232519U (en) | A kind of optical system for high brightness small display screen projection imaging | |
| CN216670485U (en) | LCD projecting apparatus that possesses heat-proof function | |
| KR960039930A (en) | Projector with removable liquid crystal panel | |
| CN212780470U (en) | High-brightness low-cost light path structure based on DLP technology and used for AOI detection field | |
| CN208569186U (en) | A kind of brightness automatic adjusument AR HUD lamp optical system | |
| KR100354149B1 (en) | Optical System for Head Mount Display | |
| CN209514284U (en) | A kind of liquid crystal projection apparatus that screen temperature is effectively reduced | |
| CN209979944U (en) | Optical engine and intelligent glasses | |
| CN207529274U (en) | Eyes protection display device | |
| CN202056689U (en) | Backlight source and display device | |
| CN207424476U (en) | LCOS back lighting devices and AR display devices | |
| CN112068391A (en) | Single-chip LCD projection method, projector and optical system thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |