CN2886616Y

CN2886616Y - Planetarium projector

Info

Publication number: CN2886616Y
Application number: CN 200620012440
Authority: CN
Inventors: 胡柯良; 胡楚敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-18
Filing date: 2006-04-18
Publication date: 2007-04-04
Anticipated expiration: 2016-04-18

Abstract

A starlike image projector comprises a globular shell which is embedded with a plurality of projecting heads on the surface, every projecting head points to a different direction and has a same structure; every one of the projecting heads are composed of a light source, a starlike image drawing board and an optical lens, wherein the light source is composed of an array of light-emitting diodes which are fixedly installed on a circuit board that is connected with a power source, the circuit board is arranged on a seat of the projecting head, the starlike image drawing board is installed in a cylinder in the middle part of the projecting head, the tail end of the cylinder is connected with the seat and the top end of the cylinder is connected with the optical lens. The starlike image projector in the utility model utilizes a plurality of isolated projecting heads which are equipped with light sources respectively; the image projected is clear and realistic utilizing the directing property of the light source. The whole projector is small in size, light in weight, convenient to carry and low in costs, thereby available to generalize and popularize and can extensively utilizing to various of movable planetarium.

Description

Astrology projector

Technical field

The utility model relates to projector, and particularly a kind of optical projection principle of utilizing is mapped to astrology projector on the dome vault curtain of the astronomical phenomena Room with the astronomical astrology, is mainly used in the movable astronomical phenomena Room, also can be used for the fixed astronomical phenomena Room.

Background technology

Some big or middle cities have the planetarium, and astrology projector is arranged in the planetarium, can demonstrate various astronomical phenomena, as celestial operating rule, constellation position, change in time and space etc.But the position of planetarium is fixed, and the visitor is limited.At present, a kind of aerated movable astronomical phenomena Room occurred, formed by the dome canopy of the heavens, astrology projector; There are tent formula dome and aeration blower fan two in the dome canopy of the heavens partly, and blower fan is blown and made the dome canopy of the heavens in tent formula dome expansion the becoming astronomical phenomena Room, and is pitch-dark unglazed in the astronomical phenomena Room, forms the vault of heaven at artificial night; The planetarium projector main frame is placed by central authorities in the astronomical phenomena Room, demonstrates out various astronomical phenomena intuitively.The aerated movable astronomical phenomena Room is flexible, can use in the public places such as children's palace, science and technology center, cultural center, middle and primary schools and even park of large, medium and small city and grass roots, carries out Popular Science Education whenever and wherever possible.

Now, the astrology projector that use in the various aerated movable astronomical phenomena Room adopts the pinhole imaging system principle design, its structure is: a pointolite is arranged at the center of housing, and the peripheral circumferentially uniform a plurality of astrology chart boards of pointolite, each astrology chart board periphery correspondence one by one is furnished with optical lens.Its shortcoming is: light source is single, the only isotropy that pointolite sends, light is to radiation all around, be an angle between the light of arrival stellar map panel edges and the pointolite, light is owing to be straight ahead, so this part light can't arrive optical lens, address this problem in order to carry, also will increase the secondary light-emitting device near astrology chart board, more even when making light arrive optical lens, the secondary light-emitting device can weaken intensity of illumination greatly, therefore, need to adopt high-power Halogen lamp LED as pointolite, light source power consumption is big, and serviceable life is short.The astrology projector volume of said structure is big, heavy, be not easy to carry, and the cost height is unfavorable for popularizing use.

The utility model content

The purpose of this utility model provides a kind of astrology projector, and it adopts a plurality of freestanding projection head, each projection head automatic light source, image definition, true to nature, whole projector volume is little, in light weight, easy to carry, cost is low, is beneficial to popularize, and can be widely used in the comings and goings formula astronomical phenomena Room.

The purpose of this utility model is achieved in that a kind of astrology projector, comprise shell, described shell is spherical, the surface of this spherical housing is embedded with a plurality of projection head, each projection head is pointed to different directions, the structure of each projection head is identical, each projection head all is by light source, astrology chart board, optical lens is formed, described light source is made of light emitting diode matrix, and this light emitting diode matrix is packed on the wiring board, and this wiring board is connected with power supply, this wiring board is contained in the base of projection head, described astrology chart board is installed in the cylinder at projection head middle part, and the tail end of this cylinder is connected with described base, and the top of this cylinder is connected with described optical lens.

Described spherical housing is made of regular dodecahedron, and a projection head is housed on the end face of this spherical housing, and the upper face of this spherical housing circumferentially is embedded with six projection head equably, and the lower surface of this spherical housing circumferentially is embedded with six projection head equably.

Described astrology chart board is made up of two glass plates and the film that is positioned at its centre, is carved with stellar map on this film, and these two glass plates are gripped by two rings shape baffle plate.

The front edge of described wiring board is resisted against on the interior annular boss of base, and spacing collar is equipped with at the back side of this wiring board, and this spacing collar is fixed by the jackscrew that is screwed onto on the base side wall.

Described astrology chart board is installed in the afterbody of cylinder, the tail end of cylinder is with the external thread bolt connection of internal thread and described base front port, the front edge of described astrology chart board is resisted against on the interior annular boss of cylinder, and the location is replaced by the front port of base in the back side of described astrology chart board.

There is the arc fixture block on the top of described cylinder, and there is the arc fixture block of position correspondence at the rear portion of described optical lens, and the top of cylinder is connected together by staggered cooperation of described arc fixture block with the rear portion of optical lens.

The utility model has following positive beneficial effect: adopt a plurality of freestanding projection head, each projection head automatic light source, utilize the directionality projection image of light source, clear, true to nature, whole projector volume is little, in light weight, easy to carry, cost is low, is beneficial to popularize, and can be widely used in the comings and goings formula astronomical phenomena Room.

Description of drawings

Fig. 1 is the structural representation of the utility model one embodiment.

Fig. 2 is the A-A cut-open view of Fig. 1.

Fig. 3 is the structural representation of projection head in 1.

Fig. 4 is the cut-open view of Fig. 3.

Fig. 5 is the exploded view of Fig. 3.

Fig. 6 is the view that Fig. 5 turns over turnback.

Fig. 7 is the exploded view of astrology chart board among Fig. 5.

Fig. 8 is a B portion partial enlarged drawing among Fig. 4.

Fig. 9 is a C portion partial enlarged drawing among Fig. 4.

Embodiment

Accompanying drawing number

1. spherical housing 2. projection head 3. projection head 4. projection head

5. base 501. jackscrews 502. annular boss

6. cylinder 601. arc fixture blocks 602. annular boss

7. camera lens 701. arc fixture blocks 8. light emitting diode matrixs 801. wiring boards

9. astrology chart board 901. glass plates 902. glass plates 903. films

904. ring baffle 905. ring baffles 906. screws 10. spacing collars

Please refer to Fig. 1, Fig. 2, the utility model is a kind of astrology projector, this projector has spherical housing 1, the surface of spherical housing 1 is embedded with a plurality of projection head, in this implementation column, spherical housing 1 is made of regular dodecahedron, and a projection head 2 is housed on the end face of this spherical housing 1, the upper face of this spherical housing 1 circumferentially is embedded with six projection head 3 equably, and the lower surface of this spherical housing 1 circumferentially is embedded with six projection head 4 equably.Each

projection head

2,3,4 is pointed to different directions, and the structure of each

projection head

2,3,4 is identical.

Please refer to Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, projection head 2 is made up of light source, astrology chart board, optical lens, light source is made of light emitting diode matrix 8, this light emitting diode matrix 8 is packed on the wiring board 801, this wiring board 801 is connected with power supply, and this wiring board 801 is contained in the base 5 of projection head 2, and astrology chart board 9 is installed in the cylinder 6 at projection head 2 middle parts, the tail end of this cylinder 6 is connected with base 5, and the front end of cylinder 6 is connected with optical lens 7.

Please refer to Fig. 7, astrology chart board 9 is made up of two thin glass plates 901,902 and film 903 of being positioned in the middle of it, is carved with stellar map on this film 903, and these two thin glass plates 901,902 are gripped by two rings shape baffle plate 904,905.Two rings shape baffle plate 904,905 is by screw 906 lockings.

Please refer to Fig. 4, Fig. 5, Fig. 6, Fig. 8, the front edge of wiring board 801 is resisted against on the annular boss 502 in the base 5, and spacing collar 10 is equipped with at the back side of this wiring board 801, and this spacing collar 10 is fixing by the jackscrew 501 that is screwed onto on base 5 sidewalls.

Please refer to Fig. 4, Fig. 5, Fig. 6, Fig. 9, astrology chart board 9 is installed in the afterbody of cylinder 6, the tail end of cylinder 6 is with the external thread bolt connection of internal thread and base 5 front ports, the edge of the ring baffle 904 in astrology chart board 9 fronts is resisted against on the annular boss 602 in the cylinder 6, and the ring baffle 905 of stellar map backboard face is replaced the location by the front port of base 5.

There is arc fixture block 601 on the top of cylinder 6, and there is the arc fixture block 701 of position correspondence at the rear portion of optical lens 7, and the top of cylinder 6 is connected together by 601,701 staggered cooperations of arc fixture block with the rear portion of optical lens 7.

Optical lens 7 of the present utility model can adopt commercially available standard component, camera normalized optical camera lens as 50 millimeters, or 35 millimeters camera normalized optical camera lens, the camera optics camera lens can be tight shot or zoom lens, zoom lens can adopt the automatic focusing camera lens, also can adopt the manual focusing camera lens, if use the camera optics camera lens that focuses, the distance between distance between light emitting diode matrix 8 and the astrology chart board 9 and astrology chart board 9 and the optical lens 7 need be adjusted in advance.

The wiring board 801 and the power connection of light emitting diode matrix 8 will be housed during use, because light emitting diode is a cold light source, do not generate heat, so power saving, on the film 903 of astrology chart board 9 black film is arranged, when cutting blocks for printing, press shape, the distributing position of celestial body black film is removed a part, form the stellar map of printing opacity, the thickness of film film does not all have influence to the incident ray of all angles, and astrology projection is clear, true to nature, on the film film, cut blocks for printing, lines can be superfine, and stellar map can gather on a fritter film, can realize the miniaturization of astrology projector.The directed high light that light emitting diode matrix 8 sends passes stellar map, and the focusing of the optical lens group of process optical lens 7 inside is amplified, and stellar map just is projected onto on the dome canopy of the heavens in the astronomical phenomena Room.Because of optical lens 7 is a prior art, so this paper is no longer given unnecessary details the inner structure of optical lens 7.

Claims

1. astrology projector, comprise shell, it is characterized in that: described shell is for spherical, the surface of this spherical housing is embedded with a plurality of projection head, each projection head is pointed to different directions, the structure of each projection head is identical, each projection head all is by light source, astrology chart board, optical lens is formed, described light source is made of light emitting diode matrix, and this light emitting diode matrix is packed on the wiring board, and this wiring board is connected with power supply, this wiring board is contained in the base of projection head, described astrology chart board is installed in the cylinder at projection head middle part, and the tail end of this cylinder is connected with described base, and the top of this cylinder is connected with described optical lens.

2. astrology projector as claimed in claim 1, it is characterized in that: described spherical housing is made of regular dodecahedron, a projection head is housed on the end face of this spherical housing, the upper face of this spherical housing circumferentially is embedded with six projection head equably, and the lower surface of this spherical housing circumferentially is embedded with six projection head equably.

3. astrology projector as claimed in claim 1 is characterized in that: described astrology chart board is made up of two glass plates and the film that is positioned at its centre, is carved with stellar map on this film, and these two glass plates are gripped by two rings shape baffle plate.

4. astrology projector as claimed in claim 1 is characterized in that: the front edge of described wiring board is resisted against on the interior annular boss of base, and spacing collar is equipped with at the back side of this wiring board, and this spacing collar is fixed by the jackscrew that is screwed onto on the base side wall.

5. astrology projector as claimed in claim 1, it is characterized in that: described astrology chart board is installed in the afterbody of cylinder, the tail end of cylinder is with the external thread bolt connection of internal thread and described base front port, the front edge of described astrology chart board is resisted against on the interior annular boss of cylinder, and the location is replaced by the front port of base in the back side of described astrology chart board.

6. astrology projector as claimed in claim 1, it is characterized in that: there is the arc fixture block on the top of described cylinder, there is the arc fixture block of position correspondence at the rear portion of described optical lens, and the top of cylinder is connected together by staggered cooperation of described arc fixture block with the rear portion of optical lens.