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CN201237142Y - Array type light-emitting diode flash lamp for camera - Google Patents

Array type light-emitting diode flash lamp for camera Download PDF

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Publication number
CN201237142Y
CN201237142Y CNU2008201249647U CN200820124964U CN201237142Y CN 201237142 Y CN201237142 Y CN 201237142Y CN U2008201249647 U CNU2008201249647 U CN U2008201249647U CN 200820124964 U CN200820124964 U CN 200820124964U CN 201237142 Y CN201237142 Y CN 201237142Y
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China
Prior art keywords
led
light
camera
arrayed
array
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Expired - Fee Related
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CNU2008201249647U
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Chinese (zh)
Inventor
徐三伟
林宇峰
游腾健
廖怡芬
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E Pin Optical Industry Co Ltd
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E Pin Optical Industry Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

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Abstract

The utility model relates to an array emitting diode (LED) flash light for camera, it comprises LED array and controller, wherein, the LED array further contains a plurality of LED light sources, a plurality of LED light sources have optical lens once, encapsulate on the LED base plate to produce different light types (distribution patterns), and can cover and have secondary optical lens, its LED light source that utilizes different light types to make up is in order to produce the long oval or circular light type of predetermined flash light; the controller can control the flash lamp to actuate with parallel low current in a first mode, and can control the flash lamp to actuate with parallel high current pulse and time in a second mode; therefore, the utility model discloses an array emitting diode flash light can save camera battery power and avoid overlength to use and cause high temperature to can produce the predetermined light type of even luminous intensity.

Description

The arrayed LED spotlight that camera is used
Technical field
The utility model relates to the flash lamp that a kind of camera is used, array LED (LED) flash lamp that particularly a kind of camera is used.
Background technology
In camera use field, often use the light source of xenon lamp (Xenon) as flash lamp, xenon lamp is that the light that utilizes interelectrode electrion to produce produces the flash of light of throwing light on; The xenon lamp major advantage is that the chromatic value very smooth and that produce of the spectrum (Spectrum) in the visible-range well meets human visual system, other advantages are very short for the time (Warm-uptime) of lighting fully in addition, in addition because the gas xenon of filling is an inert gas, so also without explosion danger; But its main shortcoming is that luminous efficiency is low, bulb life is short, cost an arm and a leg, and can produce too many hot-fluid when using.When xenon lamp was used for the flash lamp of camera, quite power consumption made camera can not often use flash lamp, therefore formed the camera image photoreceptor and must use complicated control or software to carry out the speed adjustment, to avoid bright or dark excessively.
Light emitting diode (LED) is to utilize electric energy to be converted into luminous energy, and it is that positive and negative end applies voltage in semiconductor, when electric current releases energy by electronics is combined with the hole, and discharges with the form of light, and this is the principle of luminosity of light emitting diode.Light emitting diode is according to the difference of the material that uses, and it can just make photon energy produce the light of different wave length in rank.Light emitting diode has that volume is light and handy, reaction speed reaches advantages such as pollution-free soon, these advantages allow the light emitting diode application cross over each industrial circle gradually, and, scientific and technological progress high-power light emitting diode because of developing gradually, to solve the problem of luminance shortage, make light emitting diode also can be applicable to the lighting source field.In recent years, develop high-effect LED, its luminosity has surmounted LED in the past, will can be applicable in illumination and the camera; And because of the LED power consumption low, so, a bit of time of sustainable use, enough allow advantages such as camera image photosensitive device brightness-adjusting; LED gradually development and application in camera or mobile phone camera to replace traditional xenon lamp, as U.S. Pat 2007/195176, US2003/216151, Japan Patent JP10-039795 etc.Yet the brightness that LED is single is still not enough, often needs to use plurality of LEDs to constitute led array (LED Array), the existing led array that uses is the technology of camera flash-light such as U.S. Pat 7,136,672, US2003/218689, US7,236,697, Japan Patent JP2006-173622 etc.Because the brightness of LED is compared to traditional xenon lamp brightness, can not show a candle to traditional xenon lamp brightness, led array for the demand of taking pictures, only use the number LEDs to form, if without suitable arrangement, its light is at the object place, and brightness can't be even, does not meet camera and takes required as can produce the phenomenon that light and shade differs when taking portrait; Moreover, use the control of pulse (pulse) or time on the prior art, may cause every LEDs brightness disproportionation, except that power consumption, still can't reach the light type of reservation.Can be constituted by led light source 23 as shown in Figure 1 at existing LED flash lamp, the LED wafer 233 on LED substrate 24 emit beam the back by paraboloidal reflector (reflector) 28 reflect gathering, and be radiated on the object; Yet, to take the personage for purpose for camera, under the limited brightness limit of led light source 23, how aggregation number LEDs light source 23 forms predetermined light type on object, and then effectively control, will be valued practical problem.
For improving the above-mentioned problem that proposes, the inventor is based on going in for the study for many years and many practical experience, inquires into special topic through research and design in many ways, proposes arrayed LED spotlight that a kind of camera uses with implementation and foundation as aforementioned expectation.
Summary of the invention
Main purpose of the present utility model is the defective that overcomes above-mentioned prior art, the arrayed LED spotlight that provides a kind of camera to use, described array-type LED flash lamp can present oval-shaped smooth type on object, the light that led light source is sent sees through the led array combination of being arranged, concentrate on and form uniform oblong light type or circular light type on the target object area, limited light and enhancement service efficiency avoid waste.
For reaching above-mentioned purpose, the utility model proposes the arrayed LED spotlight that a kind of camera is used, described camera have battery with supply electric power, have button and can control described array-type LED flash lamp; The array-type LED flash lamp that camera of the present utility model is used, it comprises a led array and a controller; Wherein, described led array comprises at least one led light source (LED light), a LED substrate (LED board/PCB), a secondary optics eyeglass (second order lens/secondary lens); Wherein, led light source further comprises: one optical mirror slips (firstorder lens/primary lens) and a LED wafer (LED die); An optical mirror slip is to cover on the LED wafer, and the LED wafer is to be combined on the LED substrate; When the LED wafer is controlled when emitting beam, one time optical mirror slip can produce predetermined light type with light-ray condensing; When a plurality of led light sources with arrayed, can on object, produce predetermined combined light type, and this combined light type is the shooting that the most suitable personage combines with scenery with oblong, be the most suitable personage's shooting with circle.
In addition, the arrayed LED spotlight that camera of the present utility model is used, for making combined light type luminous intensity (intensity) more even, can be above a plurality of led light sources assembly one secondary optics eyeglass again, described once, the secondary optics eyeglass can be made of Fresnel Lenses (fresnel lens) or aspherical lens (aspherical lens).
The arrayed LED spotlight that camera of the present utility model is used, its middle controller further comprises a control circuit; Described control circuit comprises: one can produce pulse (pulse) but the pulse-generating circuit, of signal can produce the gate of deciding the control of current generating circuit, a generation time of fixed current, when using the flash lamp of camera, can select the fixed current supply of low luminous energy so that flash lamp continues illumination, or select the pulsing light of high luminous energy, and for making electric power be subjected to suitably controlling and avoiding high temperature to produce, can be by the lighting hours of gate with the control led light source.
From the above, the arrayed LED spotlight that camera of the present utility model is used has the following advantages:
1, the arrayed LED spotlight used of the utility model camera can utilize the led light source of the type of not sharing the same light to combine a led array, producing predetermined combined light type on object, and is fit to the camera use of taking pictures.
2, the arrayed LED spotlight used of the utility model camera can further be set up the secondary optics eyeglass, so that luminous intensity is even in the combined light type that produces on the object.
3, the arrayed LED spotlight used of the utility model camera, its control circuit can be selected and the switching Flash Mode according to the user, as the flash lamp illumination of using low luminosity or the pulse flashing light illumination of using high brightness, and described pulse flashing light illumination more can be limited by the time, to save electric power and to avoid producing high temperature.
Description of drawings
Fig. 1 is the side view of the flash lamp design of existing light emitting diode.
Fig. 2 is that arrayed LED spotlight of the present utility model is used in the schematic appearance on the camera.
Fig. 3 is the outward appearance decomposing schematic representation of first embodiment of the utility model arrayed LED spotlight.
Fig. 4 is single the light-emitting diode structure of first embodiment of the utility model arrayed LED spotlight, optical mirror slip shape and light type schematic diagram.
Fig. 4 A is the light type polar diagram of single light emitting diode of first embodiment of the utility model arrayed LED spotlight.
Fig. 5 is the structure and the light type schematic diagram of light emitting diode matrix of first embodiment of the utility model arrayed LED spotlight.
Fig. 6 is single light-emitting diode structure and the light type schematic diagram of second embodiment of the utility model arrayed LED spotlight.
Fig. 7 is the structure and the light type schematic diagram of light emitting diode matrix of second embodiment of the utility model arrayed LED spotlight.
Fig. 8 is the outward appearance decomposing schematic representation of the 3rd embodiment of the utility model arrayed LED spotlight.
Fig. 9 is the structural representation of light emitting diode matrix of the 3rd embodiment of the utility model arrayed LED spotlight.
Figure 10 is the structure and the light type schematic diagram of light emitting diode matrix of the 3rd embodiment of the utility model arrayed LED spotlight.
Figure 11 is the schematic diagram of the control circuit of the utility model arrayed LED spotlight.
Figure 12 is the control circuit signal of the utility model arrayed LED spotlight and the sequential schematic diagram of output.
Description of reference numerals: 10-camera (Camera); 11-battery (battery); 20-LED flash lamp (LED Flash); 21-LED array (LED array); 22-controller (controller); 220-control circuit (controller circuit); 221-pulse-generating circuit (Pulsecircuit); 222-decides current generating circuit (Constant current circuit); 223-gate (Timer circuit); 224-feedback resistance (feedback resistance); 23-LED light source (LED light); Optical mirror slip of 2321-(first order lens); Optical mirror slip of 2322-(first order lens); 233-LED wafer (LED die); 2331-LED wafer (LED die); 2332-LED wafer (LED die); 2333-LED wafer (LED die); 24-LED substrate (LED board); 25-secondary optics eyeglass (Second order lens); 26,26a, 26b, 26c-light type (distribution patterns); 28-reflector (reflector); 30-button (push bottom); 301-button signal A (Push bottom A); 302-button signal B (push bottom B); 2221-pulse output (Pulse signal); The little electric current output of 2231-(constant current signal); 2241-time restriction output (Timer output).
The specific embodiment
Below in conjunction with accompanying drawing, to this novel above-mentionedly is described in more detail with other technical characterictic and advantage.
The following embodiment that is disclosed of the utility model, it is the main composition element of the arrayed LED spotlight used at the utility model camera and explaining, though therefore the following embodiment that is disclosed of the utility model is applied in the camera flash-light, but with regard to generally having the LED spotlight structure, the personage who has common technology in this field understands, the composed component that the utility model discloses the LED spotlight structure is not restricted to the following example structure that discloses, just described each composed component of LED spotlight is to carry out many changes, revise, even the equivalence change, for example: the shaped design of an optical mirror slip in the described LED spotlight structure, the Combination Design of led light source does not limit; Or the shaped design of secondary optics eyeglass, the major and minor axis ratio of combined light type, luminous intensity uniformity coefficient do not limit; Or the length of fixed current size, burst length, time restriction does not limit yet.
See also Fig. 2, it is that the utility model arrayed LED spotlight is applied in the schematic diagram on the camera, described LED flash lamp 20 is to be installed in the camera 10, controlled by button 30, when pressing first kind of Flash Mode of selection, button 30 (can be first section contact of depressing usually, but not as limit), this moment, driving LED flash lamp 20 continued to throw light on fixing little electric current, adjusted the starts such as judgement of focal length and time for exposure for camera; When pressing second kind of Flash Mode of selection, button 30 (can be second section contact of depressing usually, but not as limit), the illumination that this moment, driving LED flash lamp 20 produced high brightness in the high voltage pulse mode, pulse frequency can be best the setting according to LED wafer function, power consumption and radiating effect in advance, after the illumination of LED flash lamp 20 starting impulses, camera can be taken the intercepting image; For avoiding, can be provided with time control with lighting-off because of highlight illumination makes the too high or power consumption of LED flash lamp 20 temperature.Study for a long period of time down the inventor, led light source is not so good as traditional xenon lamp because of being subject to luminous intensity, and the light that led light source must be sent just can be taken for camera and use to concentrate and uniform light type; And usually with in in-plant personage take, optimal smooth type is an oblong, its ratio of long axis to short axis is approximately 2:1, but not as limit.
<the first embodiment 〉
With reference to figure 3-5, the array-type LED flash lamp 20 that the camera of present embodiment is used comprises a led array 21 and a controller 22; Wherein said led array 21 is to utilize 3 led light sources 23 to form a transversely arranged array, and be installed on the LED substrate 24, described LED substrate 24 is connected with controller 22 and controlled device 22 is controlled, described controller 22 also connects battery 11 and button 30, button 30 can be selected the pattern of flash lamp illumination, and by battery 11 supply capabilities with driving governor 22 and array-type LED flash lamp 20.After led light source 23 controlled devices 22 and LED substrate 24 provide electric current and voltage, can send the light of predetermined light type 26.In the present embodiment, led light source 23 is to use high power white light LED, described led light source 23 is to be made of optical mirror slip (first order lens/primary lens) 2321 and LED wafer (LEDdie) 233, emit beam after LED wafer 233 is excited, send predetermined light type (Distribution Pattern) 26 by an optical mirror slip 2321.Present embodiment with array of transversely arranged formation, forms elliptoid combined light type 26c as shown in Figure 5 by 3 LEDs light sources 23 with 3 LEDs light sources 23.Shown in figure 4,4A, it is to be the example explanation with the led light source 23a in the middle of being positioned at, the optical mirror slip 2321 of described led light source 23a adopts the Fresnel Lenses of particular design, its external form optical mirror slip 2321 as shown in Figure 4, the ellipse-shaped light type that sends (Elliptic Distribution Pattern) 26a (26) is 60 ° of 120 ° of x, and its luminous intensity (light intensity) polar diagram (pole plot) is shown in Fig. 4 A.Same, the led light source 23b of the both sides of led light source 23a in the middle of being located at, its optical mirror slip 2321 also adopts the Fresnel Lenses of different optical parameter, can form 90 ° narrow according to angle light type (Narrow AngularDistribution Pattern) 26b.3 LEDs light sources 23 (23a, 23b) with suitable spacing arrangement under, the light type that 3 LEDs light sources 23 send at the oblong combined light type 26c that forms even luminous intensity with respect to combined focal length more than 100 times (composite focal length) as shown in Figure 5, if do not consider aerial refraction of light and diffuse reflection, can be 2.2: 1 oval combined light type 26c at the object place of relative unlimited distance (being equivalent to combined focal length more than 100 times) generation ratio of long axis to short axis.
As shown in the above description, the utility model adopts the light type configuration of led light source 23, make the light type 26c that on object, produces long ellipse and uniform luminance, on object, present the shortcoming of illumination of the circular or nearly square of uneven brightness with improvement prior art LED, use and can offer practical shooting of camera.
With reference to Figure 11,12, it is the control circuit figure and control sequential chart of present embodiment, be described as follows: the utility model camera is controlled by controller 22 with the light illumination mode of array-type LED flash lamp 20, include a control circuit 220 in the described controller 22, mainly be by a pulse-generating circuit 221, certain current generating circuit 222 and a gate 223, the LED wafer 2331~2333 of three parallel connections that link together and back coupling (feedback) resistance (feedbackresistance) in parallel.As shown in figure 11, when button 30 is selected the illumination of first pattern, battery 11 is connected with contact A, its button signal A301 enters and decides current generating circuit 222, deciding current generating circuit 222 provides every LEDs wafer 2331~2333 identical and fixing little electric currents of 30mA to export 2231, LED wafer 2331~2333 is emitted beam with 10% brightness, present embodiment adopts parallel way, the electric current that every LEDs wafer 2331~2333 is flow through is identical, so that every LEDs wafer 2331~2333 sends the light of same brightness as far as possible, so that the interior brightness of the light type (26) on the object can be evenly, with the take pictures quality of exposure of raising; When button 30 cut off contact A, battery 11 was not connected with contact A, decided current generating circuit 222 and stopped to provide little electric current output 2231, and LED wafer 2331~2333 stops to emit beam; With reference to the control sequential chart of Figure 12, (connect contact A) when button signal A301 transfers electronegative potential to by high potential again, little electric current output 2231 transfers high potential to by electronegative potential, in order to driving LED wafer 2331~2333; When through T1 after the time, when transferring high potential to by electronegative potential, button signal A301 (cuts off contact A), and little electric current output 2231 transfers electronegative potential to by high potential, stops to export to LED wafer 2331~2333.When button 30 is chosen as the illumination of second pattern, battery 11 is connected with contact B, button signal B302 enters pulse-generating circuit 221, pulse-generating circuit 221 produces pulse and exports 2221 entry times restriction circuit 223, in the time limit that can export for pulse, the time restriction output 2241 of the identical and fixing high electric current of 0.35A of every LEDs wafer 2331~2333 is provided, described pulse output 2221 is the high electric current of 1/5 second 2A at present embodiment, LED wafer 2331~2333 is emitted beam with 500% brightness, on using, the output when this is filmed image; When the Preset Time of pulse output arrived, gate restriction 223 break times output 2241 made LED wafer 2331~2333 stop to emit beam, in order to avoid temperature raises and saves electricity consumption.When button 30 cuts off contact B, battery 11 is not connected with contact B, and pulse-generating circuit 221 stops to provide pulse output 2221, and the time restriction output 2241 of gate 223 also stops, electric power no longer is provided, makes LED wafer 2331~2333 stop to emit beam; Control sequential chart with reference to Figure 12, when transferring electronegative potential to by high potential, button signal B302 (connects contact B), pulse output 2221 by electronegative potential transfer pulse output to, time restriction output 2241 also transfers pulse output to by electronegative potential, in order to the LED wafer 2331~2333 of tending to act; When passing through default T2 after the time, no matter the current potential situation of button signal B302, time restriction output 2241 transfers electronegative potential to, stops to export to LED wafer 2331~2333; Be to simplify circuit and control, enter T3 when arriving in the T2 time in the time time, pulse output 2221 still continues with pulse output, but time restriction is exported 2241 and do not exported pulse electric power; (cut off contact B) when button signal B302 transfers high potential to by electronegative potential, small-pulse effect output 2221 transfers electronegative potential to by the high potential pulse, stops to export to gate 223.
As shown in the above description, prior art is in led light source control, or adopt fixed current or adopt pulse signal, but the utility model is a camera flash-light to be used, parallel way is used in improvement, so that LED wafer 2331~2333 produces identical electric power,, reach the requirement of luminous intensity homogeneous in the object glazing type to produce the light of close brightness; Further, use, the utility model proposes two kinds of patterns that fixing little electric current continues illumination and high brightness pulsing light for the photometry and the shooting that meet camera, required to meet camera reality.
<the second embodiment 〉
With reference to figure 6-8, the array-type LED flash lamp 20 of present embodiment is to utilize 3 led light sources 23 to form a transversely arranged led array 21, to form oblong and even brightness light type 26c on object; Led light source 23 also is to use high-brightness white-light LED, and led light source 23 is made of optical mirror slip 2322 and LED wafer 233, emits beam after LED wafer 233 is excited, and sends predetermined light type 26 by an optical mirror slip 2322.As shown in Figure 6, an optical mirror slip of described led light source 23 2322 adopts the meniscus aspherical lens, its concave surface in LED wafer 233 sides and convex surface in the object side; Led light source 23a in the middle of being positioned at can send the ellipse-shaped light type 26a of 90 ° of 120 ° of x, is positioned at the led light source 23b of both sides, and its optical mirror slip 2322 also adopts the meniscus aspherical lens of different optical parameter, can form 90 ° narrow according to angle light type 26b.Under 3 LEDs light sources 23 are arranged with suitable spacing, the light type that 3 LEDs light sources 23 send is in the oblong combined light type 26c that forms even luminous intensity with respect to combined focal length more than 100 times (composite focal length), if do not consider aerial refraction of light and diffuse reflection, can produce ratio of long axis to short axis at the object place of relative unlimited distance (being equivalent to combined focal length more than 100 times) is the oval combined light type 26c of 1.8:1.The action function of the controller 22 of present embodiment is same as first embodiment again.
By above-mentioned explanation, present embodiment uses the optical mirror slip 2321 of optical mirror slip 2322 of meniscus aspheric surface with the Fresnel pattern that replaces first embodiment, and dispose by suitable led light source 23 spacings, can on object, form more concentrated, and the oval combined light type of the length of uniform luminance uses and can offer practical shooting of camera.
<the three embodiment 〉
Shown in figure 9-10, the array-type LED flash lamp 20 of present embodiment comprises by 3 led light sources 23 and forms a transversely arranged led array 21 and a secondary optics eyeglass 25, to form oblong and even brightness combined light type 26c on object; Led light source 23 is made of optical mirror slip 2322 and LED wafer 233, and wherein an optical mirror slip 2322 is to adopt the meniscus aspherical lens as second embodiment, its concave surface in LED wafer 233 sides and convex surface in the object side; Led light source 23a in the middle of being positioned at can send the ellipse-shaped light type 26a of 90 ° of 120 ° of x, is positioned at the led light source 23b of both sides, and its optical mirror slip 2322 also adopts the meniscus aspherical lens of different optical parameter, can form 90 ° narrow according to angle light type 26b.Present embodiment further on 3 LEDs light sources 23 again coated with a secondary optics eyeglass (second order lens/secondarylens) 25, as Fig. 9, shown in 10, described secondary optics eyeglass 25 is to be Fresnel Lenses at present embodiment, the light type that 3 LEDs light sources 23 can be sent, at the oblong combined light type 26c that forms with respect to combined focal length more than 100 times (composite focal length) than the more even luminous intensity of second embodiment, if do not consider aerial refraction of light and diffuse reflection, can produce ratio of long axis to short axis at the object place of relative unlimited distance (being equivalent to combined focal length more than 100 times) is the oval combined light type 26c of 2.0:1.The action function of the controller 22 of present embodiment is same as first embodiment again.
Equally, in the another kind of combination of present embodiment, take, for example use the face of mobile phone camera to take if will constitute the personage who is more suitable among a small circle, more suitable with the circular light type.In combination, can adopt and be positioned at the ellipse-shaped light type that middle led light source 23a can send 60 ° of 30 ° of x, the led light source 23b that is positioned at both sides can send 60 ° narrow according to angle light type, and making this LED flash lamp 20 produce ratio of long axis to short axis at the object place is the circular combined light type 26c of 1.3:1.
By above-mentioned explanation, the led array 21 of present embodiment also includes a secondary optics eyeglass 25, can form the more oblong combined light type 26c of uniform luminance on object, uses and can offer practical shooting of camera.
The above only is this novel preferred embodiment, only is illustrative for the utility model, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that the utility model claim is limited, revise, even equivalence, but all will fall in the protection domain of the present utility model.

Claims (10)

1, the arrayed LED spotlight used of a kind of camera is characterized in that, it is applied on the camera of a band button, and it comprises a led array and a controller, wherein:
Described led array is to be installed on the LED substrate in the mode of being connected in parallel by at least two led light sources, described led light source comprises a LED wafer and an optical mirror slip, the light-ray condensing that a described optical mirror slip sends described LED wafer also sends the light of predetermined light type, and a described optical mirror slip makes described led array send the light of oblong combined light type;
Described controller is to comprise a control circuit, described control circuit comprises a certain current generating circuit and a pulse-generating circuit at least, described control circuit is connected in the described led array at least two led light sources that are connected in parallel forming at least two kinds of different light illumination modes, and uses wherein a kind of light illumination mode by the button of described camera to select or to switch.
2, the arrayed LED spotlight used of camera according to claim 1, it is characterized in that, described led array is to utilize three led light sources to be installed on the described LED substrate in the mode of being connected in parallel and with suitable spacing and form a transversely arranged led array, wherein the led light source in the centre produces an ellipse-shaped light type, two led light sources in both sides respectively produce a circular light type, form a long oval combined light type thus.
3, the arrayed LED spotlight used of camera according to claim 1, it is characterized in that, described controller further includes a gate, and described gate arrives the back in a scheduled time and cuts off the pulse output of described pulse-generating circuit to stop described led array output.
4, the arrayed LED spotlight used of camera according to claim 1 is characterized in that a described optical mirror slip is selected for use in Fresnel Lenses or the meniscus non-spherical lens a kind of, in order to produce predetermined ellipse-shaped light type.
5, the arrayed LED spotlight used of camera according to claim 1 is characterized in that a described optical mirror slip is selected for use in Fresnel Lenses or the meniscus non-spherical lens a kind of, in order to produce predetermined circular light type.
6, the arrayed LED spotlight used of a kind of camera is characterized in that, it is applied on the camera of a band button, and it comprises a led array and a controller, wherein:
Described led array is to be installed on the LED substrate in the mode of being connected in parallel and the last secondary optics eyeglass of covering by at least two led light sources, described led light source is to comprise a LED wafer and an optical mirror slip, the light-ray condensing that a described optical mirror slip sends described LED wafer also sends the light of predetermined light type, throw by described secondary optics eyeglass again, so that described led array sends the light of oblong combined light type;
Described controller is to comprise a control circuit, described control circuit comprises a certain current generating circuit and a pulse-generating circuit at least, described control circuit is connected at least two led light sources that are connected in parallel in the described led array and forms at least two kinds of different light illumination modes, and uses wherein a kind of light illumination mode by the button of described camera to select or to switch.
7, the arrayed LED spotlight used of camera according to claim 6, it is characterized in that, described led array is to utilize three led light sources to be installed on the described LED substrate in the mode of being connected in parallel and with suitable spacing and form a transversely arranged led array, wherein the led light source in the centre produces the ellipse-shaped light type, two led light sources in both sides produce the circular light types, again through growing oval combined light type to form one behind the described secondary optics eyeglass.
8, the arrayed LED spotlight used of camera according to claim 6, it is characterized in that, described controller further includes a gate, and described gate arrives the back at the fixed time and cuts off the pulse output of described pulse-generating circuit to stop described led array output.
9, the arrayed LED spotlight used of camera according to claim 6 is characterized in that a described optical mirror slip is selected for use in Fresnel Lenses or the meniscus non-spherical lens a kind of.
10, the arrayed LED spotlight used of camera according to claim 6 is characterized in that described secondary optics eyeglass is to be made of Fresnel Lenses.
CNU2008201249647U 2008-07-29 2008-07-29 Array type light-emitting diode flash lamp for camera Expired - Fee Related CN201237142Y (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
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CN102762914A (en) * 2010-11-17 2012-10-31 中村正一 Medical light-source device
CN103238020A (en) * 2011-01-13 2013-08-07 中村正一 Medical light source device
CN104469174A (en) * 2013-09-24 2015-03-25 纬创资通股份有限公司 Handheld communication device and method for adjusting flash module of handheld communication device
CN106412455A (en) * 2016-11-24 2017-02-15 上海传英信息技术有限公司 Photoflash lamp device and photographing apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102762914A (en) * 2010-11-17 2012-10-31 中村正一 Medical light-source device
CN103238020A (en) * 2011-01-13 2013-08-07 中村正一 Medical light source device
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