CN2696009Y - Film type liquid crystal projector - Google Patents

Abstract

The utility model relates to a small-sized film type liquid crystal projector for family use. The film type liquid crystal projector comprises a shell (1), a support foot (15), a light source mechanism which is fixedly connected to the inner right portion of the shell (1), a Fresnel lens (7) which is fixed on a supporting base (10), and is fixedly connected to the right side of the concave groove positioned at the middle anterior part of the bottom of the shell (1), a liquid crystal screen (8) which is fixed on a supporting base (11), and is fixedly connected to the middle of the concave groove positioned at the middle anterior part of the bottom of the shell (1), a main circuit board (9) which is fixedly connected to the left side of the concave groove positioned at the middle anterior part of the bottom of the shell (1), and a projection lens (12) which is fixedly connected to the cylinder of the left side of the shell (1). Because the film rubber sheet is replaced by the liquid crystal display to display graph and text signals, and is applied by the specific illuminating light source, the utility model has high luminance, long lifetime, simple structure, convenient operation, beautiful appearance and cheap price; the film type liquid crystal projector can be connected with a plurality of signal sources such as VCD, DVD, computer, television, etc. ; the film type liquid crystal projector is optoelectronic integration audio video new technology product without radiation and protecting visual acuity.

Description

Film formula liquid crystal projector

Technical field: the utility model relates to the small-sized film formula liquid crystal projector that uses in a kind of family.

Background technology: current, China hundreds of millions families thirst for taking a fancy to big picture day by day, the video product of high-resolution, and can throw more than hundred cun only projector's product of super large picture person.Take a broad view of the color projector in the existing market, complex structure costs an arm and a leg, and this technology makes state's inner projection industry be difficult to development almost by state exoelectron giant business monopoly production.And the traditional film machine is simple in structure, the brightness height, and picture is clear, and is with low cost, but its auxiliary facility complexity, outward appearance is not good, and only can use cinefilm to do signal source, so its usable range is limited.

Summary of the invention: the utility model has overcome the drawback of original product, and the audio frequency and video New Product film formula liquid crystal projector of the optoelectronic integration of a kind of simple in structure, easy to operate, vision protection is provided.It comprises casing 1, leg 15, described light source mechanism is fixedly connected on right part in the casing 1, Fresnel Lenses 7 is fixed on the bearing 10, and be fixedly connected on middle front part groove right side, 1 end of casing, liquid crystal display 8 is fixed on the bearing 11, and is fixedly connected on middle front part groove middle part, 1 end of casing, main circuit board 9 is fixedly connected on middle front part groove left side, 1 end of casing, and projection lens 12 is fixedly connected on the casing 1 left side cylinder.Because the utility model replaces cinefilm to show facsimile signal with LCD; and be aided with the special lighting light source; the brightness height, the life-span is long, can connect all multisignal sources such as VCD, DVD, computer and TV; and it is simple in structure; easy to operate, exquisite appearance, cheap; be a kind ofly not have that the width of cloth is penetrated, the audio frequency and video New Product of the optoelectronic integration of vision protection, thereby have good social benefit and economic benefit.

Description of drawings; Fig. 1 is a front view of the present utility model

Fig. 2 is that the A-A of Fig. 1 is to view

Fig. 3 is the left view of Fig. 1

Embodiment: shown in Figure 3 as Fig. 1 Fig. 2, it comprises casing 1, and its material is a plastic-blasting iron plate, and there is a groove front portion of going to the bottom, and the front portion is a cylinder, and four legs 15 are fixedly connected on four jiaos of lower ends, act as device feature and support.Light source mechanism is fixedly connected on right part in the casing 1, be to be welded by iron plate by lamp bracket 2, be screwed and be connected casing 1 right-hand member, reflector 3 devices are at the iron plate middle part on lamp bracket 2 right sides, with fluorescent tube 6 center distance be 26 millimeters, in the lamp socket at fluorescent tube 6 heads two ends about being connected lamp bracket 2 middle parts, fluorescent tube 6 comprises that two kinds adapt to the fluorescent tube of different brightness demands and supporting ballast resistor 16, trigger 17 thereof, a kind of is both-end high pressure dysprosium lamp, the brightness height, in 1000 hours life-spans, be fit to audio-visual education programme office type liquid crystal projector and use; Another kind is a both-end high pressure Metal halogen lamp, and brightness is lower, but the life-span reach 6000 hours, be fit to the domestic type liquid crystal projector and use, two kinds of fluorescent tubes all need supporting special-purpose ballast resistor 16, trigger 17 can light work.With condenser 4 center distance be 36 millimeters; condenser 4 devices are at the iron plate middle part in lamp bracket 2 left sides; with heat-protecting glass 5 spacings be 36 millimeters; heat-protecting glass 5 is connected lamp bracket 2 left ends by four bolt and forms; mainly be to produce light source, under the effect of reflector, launch by condenser optically focused again by fluorescent tube; the heat that heat-protecting glass produces fluorescent tube carries out heat insulation, with protection Fresnel Lenses and liquid crystal display.Fresnel Lenses 7 is fixed on the bearing 10, and is fixedly connected on middle front part groove right side, 1 end of casing, plays even light blast effect.Liquid crystal display 8 is fixed on the bearing 11, and is fixedly connected on middle front part groove middle part, 1 end of casing, act as the demonstration facsimile signal.Main circuit board 9 is fixedly connected on middle front part groove left side, 1 end of casing, be mainly liquid crystal display 8 the demonstration facsimile signal is provided, the main circuit board of difference in functionality can provide the signal source of difference in functionality, only has the main circuit board of AV function can only connect VCD, DVD, the main circuit board of AV, TV function.Increase the function that receives TV on the AV basis, AV, TV, VGA multimedia integration main circuit board then can provide multiple signal sources such as VCD, DVD, TV, computer.Projection lens 12 is fixedly connected on the casing 1 left side cylinder, can be made up of several lens, and relative position is adjustable, act as to regulate big or small picture.Input port 13 is fixedly connected on casing 1 left side upper end, can be respectively fixedly input port and various manual buttons such as AV, TV, VGA.Power supply 18 is fixedly connected on lower end, casing 1 left side, is two 12V power panels, output two-way 12V voltage, and one the road drives two cooling fan work, and one the tunnel connects main circuit board, is the power supply of liquid crystal display parts.Ballast resistor 16, trigger 17 are fixedly connected on casing lower end, 1 right side and the supporting use of fluorescent tube, stablize lamp tube current and protection fluorescent tube.14 two of drive fan fixedly are connected in two ends up and down, casing 1 right side respectively.In order to make the liquid crystal display 8 can continuous workings, must radiating and cooling, in the lining air blast, the outside air blast of another forms the convection current air channel just to integrated lamp bracket 2 parts for fan half, and radiating effect is good.

During use, energized connects signal source, imports facsimile signal, mixes up the focal length of projection lens, just the facsimile signal on the liquid crystal display can be projected on the curtain wall 100 inches in picture--and 300 inches are any adjustable.

Claims (3)

1, a kind of film formula liquid crystal projector, it comprises casing (1), leg (15), it is characterized in that light source mechanism is fixedly connected on the interior right part of casing (1), Fresnel Lenses (7) is fixed on the bearing (10), and be fixedly connected on casing (1) end middle front part groove right side, liquid crystal display (8) is fixed on the bearing (11), and be fixedly connected on casing (1) end middle front part groove middle part, main circuit board (9) is fixedly connected on casing (1) end middle front part groove left side, and projection lens (12) is fixedly connected on the cylinder of casing (1) left side.

2, film formula liquid crystal projector according to claim 1, it is characterized in that input port (13) is fixedly connected on upper end, casing (1) left side, power supply (18) is fixedly connected on lower end, casing (1) left side, ballast resistor (16), trigger (17) are fixedly connected on casing (1) lower end, right side, and (14) two of drive fan fixedly are connected in two ends up and down, casing (1) right side respectively.

3, film formula liquid crystal projector according to claim 1, it is characterized in that light source mechanism, be to be fixedly connected on casing (1) right-hand member by lamp bracket (2), reflector (3) device is at the iron plate middle part on lamp bracket (2) right side, in the lamp socket at fluorescent tube (6) head two ends about being connected lamp bracket (2) middle part, condenser (4) device is at the iron plate middle part in lamp bracket (2) left side, and heat-protecting glass (5) is connected lamp bracket (2) left end by four bolt and forms.

Images