CN205283677U - Flash light lighting module and camera device with ligh -ranging function closely - Google Patents
Flash light lighting module and camera device with ligh -ranging function closely Download PDFInfo
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- CN205283677U CN205283677U CN201520844764.9U CN201520844764U CN205283677U CN 205283677 U CN205283677 U CN 205283677U CN 201520844764 U CN201520844764 U CN 201520844764U CN 205283677 U CN205283677 U CN 205283677U
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Abstract
The utility model discloses a flash light lighting module and camera device with ligh -ranging function closely, having closely the flash light lighting module of ligh -ranging function and including the circuit board, the one end of circuit board is equipped with the control circuit pin, and the other end electricity of circuit board is connected with flash light lighting device, and this flash light lighting device includes the device body, sets up in this internal distance measuring sensor functional module of device and evenly enclose and establish at distance measuring sensor functional module a plurality of flash light all around, device body facial make -up is equipped with flash light transparent surface and transmission receive window, the transmission receive window is located the top of distance measuring sensor functional module, the flash light transparent surface is located the top of a plurality of flash light is connected with the peripheral part of transmission receive window. Make it except having the illumination function, can also carry out auto focus and adjust the lighting models who shoots according to the distance that reaches the subject a little less than the ambient light intensity, overcome the traditional function singleness of problem organize to(for) flash of light lamp module.
Description
Technical field
The present invention relates to electron image field, specifically, relate to a kind of flash lamp illumination module with closely ligh-ranging function; Further relate to a kind of employing camera head with the flash lamp illumination module of closely ligh-ranging function.
Background technology
Along with developing rapidly of multimedia technology, digital camera, video camera and the camera head such as mobile phone with photographic head are increasingly subject to the favor of consumers in general. When utilizing these camera heads to take pictures, sometimes because ambient light intensity needs the auxiliary of illumination not, namely using general known flash lamp illumination module, flash lamp illumination module is to send very strong light within very short time, is the photographic part of photosensitive. It is used for the occasion moment illumination of dark, is also used for the brighter occasion of light to subject local light filling, low-profile, uses safety, easy to carry, stable performance.
Existing flash lamp illumination module, except being used for illuminating subject, substantially not possessing other any functions, it does not have automatic light measuring, range finding and regulates the functions such as exposure index (including the parameter such as colour temperature of the power of passage of scintillation light, scintillation time or passage of scintillation light). Along with consumption market is for the high standard demand of camera head, the simple flash lamp module of existing capability cannot adapt to the nowadays fast-developing epoch.
Summary of the invention
It is an object of the invention to overcome drawbacks described above of the prior art, there is provided one to have illumination functions, also weak according to environmental light intensity and subject distance can carry out auto-focusing and regulate the flash lamp illumination module with closely ligh-ranging function of shooting light illumination mode.
Another object of the present invention is to, it is provided that the camera head of a kind of flash lamp illumination module with closely ligh-ranging function.
For achieving the above object, technical scheme provided by the invention is as follows:
A kind of flash lamp illumination module with closely ligh-ranging function, including circuit board, one end of described circuit board is provided with control circuit pin, the other end of described circuit board is electrically connected with flash lamp illumination device, described flash lamp illumination device includes device body, it is arranged at the distance measuring sensor functional module in device body and uniformly encloses several flash lamies being located at distance measuring sensor functional module surrounding, described device body is equiped with flash lamp transparent surface and launches reception window, described reception window of launching is positioned at the top of described distance measuring sensor functional module, described flash lamp transparent surface is positioned at the top of several flash lamies described and is connected with the described peripheral part receiving window of launching.
Wherein, described distance measuring sensor functional module is VL6180X module, and it is made up of closely sensor and ambient light sensor.
As preferably, described flash lamp transparent surface and transmitting receive window and are formed in one.
As preferably, described flash lamp transparent surface and the junction Formation cross-section launching reception window are the " profile of < " type.
In technique scheme, the described material receiving window of launching adopts IRPMMA or IRPC of saturating infrared band, and its transmission wave band is 700��1050nm, projection ratio more than 80%.
As preferably, described flash lamp transparent surface be arranged below CD ring grain, the rectangular zigzag broken line of this CD ring grain is arranged.
As preferably, described circuit board is can the flexible PCB FPC of coiling.
In technique scheme, described flash lamp is provided with eight and is distributed round described distance measuring sensor functional module in circular, and described flash lamp transparent surface is the circular top being correspondingly arranged at described eight flash lamies.
Wherein, described flash lamp transparent surface is light-distribution lens, and what it adopted is transparent PC or PMMA material.
In technique scheme, described flash lamp transparent surface includes several light-distribution lens unit being correspondingly arranged on several flash lamies described, described light-distribution lens unit includes the indent plane of incidence of transmissive flash lamp light, total reflection side and exit plane, the described indent plane of incidence is positioned at the surface of flash lamp, and the light that described flash lamp sends is transmitted in light-distribution lens unit through the indent plane of incidence and is penetrated from exit plane by the reflection of total reflection side.
In technique scheme, described flash lamp transparent surface includes several light-distribution lens unit being correspondingly arranged on several flash lamies described, described light-distribution lens unit includes the indent plane of incidence, sawtooth pattern total reflection ring grain Fresnel surface and exit plane, described sawtooth pattern total reflection ring grain Fresnel surface arranges round the described indent plane of incidence and is positioned at the surface of flash lamp, and the light that described flash lamp sends is totally reflected the reflection of ring grain Fresnel surface by described sawtooth pattern and penetrates from exit plane.
Wherein, the described indent plane of incidence is indent conical surface.
In technique scheme, described flash lamp transparent surface includes several light-distribution lens unit being correspondingly arranged on several flash lamies described, described light-distribution lens unit includes the indent plane of incidence of transmissive flash lamp light, total reflection side, recessed total reflection conical surface and exit plane, the described indent plane of incidence is positioned at the surface of flash lamp, the light that described flash lamp sends is transmitted in light-distribution lens unit through the indent plane of incidence and is penetrated from exit plane by the reflection of total reflection side, or it is transmitted in light-distribution lens unit by recessed total reflection conical surface to reflex on total reflection side again secondary reflection through the indent plane of incidence to penetrate from exit plane.
Wherein, the described indent plane of incidence is interior concave spherical surface.
As preferably, the described ring grain that is arranged below receiving window of launching is totally reflected Fresnel Lenses, and this ring grain total reflection Fresnel Lenses is correspondingly arranged on infrared transmitting tube and the infrared receiving tube of described distance measuring sensor functional module.
As preferably, the material of described ring grain total reflection Fresnel Lenses adopts IRPMMA or IRPC of saturating infrared band, and its transmission wave band is 700��1050nm, projection ratio more than 80%.
As preferably, described transmitting is provided with ring grain refractive type Fresnel lens on reception window, and this ring grain refractive type Fresnel lens is correspondingly arranged on infrared transmitting tube and the infrared receiving tube of described distance measuring sensor functional module.
As preferably, the material of described ring grain refractive type Fresnel lens adopts IRPMMA or IRPC of saturating infrared band, and its transmission wave band is 700��1050nm, projection ratio more than 80%.
In technique scheme, described flash lamp transparent surface is CD ring grain, is provided with prism film between this CD ring grain and described flash lamp, described prism film be by the microprism of several V-shaped along radially by rotates display in the way of arrange and form.
In technique scheme, described flash lamp transparent surface is CD ring grain, is provided with microprism film between this CD ring grain and described flash lamp, and described microprism film is made up of several miniature micro-prism array.
In technique scheme, be shaped as ellipse, described flash lamp transparent surface and the transmitting of described device body receive shape respectively oval, hexagon or the square of window.
In technique scheme, described device body generally circular in shape, described flash lamp transparent surface and launch the shape respectively oval, circular, hexagon or the square that receive window.
In technique scheme, be shaped as hexagon, described flash lamp transparent surface and the transmitting of described device body receive shape respectively circular, the hexagon of window.
In technique scheme, be shaped as square, described flash lamp transparent surface and the transmitting of described device body receive shape respectively oval, circular, hexagon or the square of window.
A kind of camera head, including a kind of flash lamp illumination module with closely ligh-ranging function described above.
Compared with prior art, the beneficial effects of the present invention is:
Several flash lamies and distance measuring sensor functional module should be integrated with the flash lamp illumination module of closely ligh-ranging function, distance measuring sensor functional module is provided with transmitting and receives window, several flash lamies described are provided with flash lamp transparent surface, such that it is able to the distance according to distance, and the power of environment light, it is automatically adjusted the exposure index of flash lamp, and range measurement is fed back to camera lens module, realize the automatic focusing function of camera lens, this can be more intelligent with the camera function of the camera head of the flash lamp illumination module of closely ligh-ranging function to make employing, far and near image is apparent, image quality is more graceful.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, a kind of flash lamp illumination module with closely ligh-ranging function of the present invention and camera head are described in further detail.
Fig. 1 is one of a kind of structural representation of flash lamp illumination module with closely ligh-ranging function of the present invention;
Fig. 2 is the two of the structural representation of a kind of flash lamp illumination module with closely ligh-ranging function of the present invention;
Fig. 3 is the structural representation of the flash lamp illumination device of a kind of flash lamp illumination module with closely ligh-ranging function of the present invention;
Fig. 4 is the structural representation of the light-distribution lens of a kind of flash lamp illumination module with closely ligh-ranging function of the present invention;
Fig. 5 is the profile in T-T direction in Fig. 3;
Fig. 6 is the profile in X-X direction in Fig. 3;
Fig. 7 is one of a kind of fundamental diagram of flash lamp illumination module with closely ligh-ranging function described in the embodiment of the present invention one;
Fig. 8 is the two of the fundamental diagram of a kind of flash lamp illumination module with closely ligh-ranging function described in the embodiment of the present invention one;
Fig. 9 is the structural representation of a kind of flash lamp illumination module with closely ligh-ranging function described in the embodiment of the present invention two;
Figure 10 is one of a kind of fundamental diagram of flash lamp illumination module with closely ligh-ranging function described in the embodiment of the present invention two;
Figure 11 is described in the embodiment of the present invention two the two of the fundamental diagram of a kind of flash lamp illumination module with closely ligh-ranging function;
Figure 12 is the structural representation of a kind of flash lamp illumination module with closely ligh-ranging function described in the embodiment of the present invention three;
Figure 13 is one of a kind of fundamental diagram of flash lamp illumination module with closely ligh-ranging function described in the embodiment of the present invention three;
Figure 14 is described in the embodiment of the present invention three the two of the fundamental diagram of a kind of flash lamp illumination module with closely ligh-ranging function;
Figure 15 is the structural representation of a kind of flash lamp illumination module with closely ligh-ranging function described in the embodiment of the present invention four;
Figure 16 is the structural representation of a kind of flash lamp illumination module with closely ligh-ranging function described in the embodiment of the present invention five;
Figure 17 is the structural representation of a kind of flash lamp illumination module with closely ligh-ranging function described in the embodiment of the present invention six;
Figure 18 is the structural representation of the prism film of a kind of flash lamp illumination module with closely ligh-ranging function described in the embodiment of the present invention six;
Figure 19 is the structural representation of a kind of flash lamp illumination module with closely ligh-ranging function described in the embodiment of the present invention seven;
Figure 20 is the structural representation of the microprism film of a kind of flash lamp illumination module with closely ligh-ranging function described in the embodiment of the present invention seven.
Detailed description of the invention
The following is the preferred example of a kind of flash lamp illumination module with closely ligh-ranging function of the present invention and camera head, therefore do not limit protection scope of the present invention.
Embodiment one
Refer to Fig. 1 to Fig. 3, there is shown a kind of flash lamp illumination module with closely ligh-ranging function, including circuit board 1, one end of described circuit board 1 is provided with control circuit pin 2, the other end of described circuit board 1 is electrically connected with flash lamp illumination device 3, described flash lamp illumination device 3 includes device body 31, it is arranged at the distance measuring sensor functional module 32 in device body 31 and uniformly encloses several flash lamies 33 being located at distance measuring sensor functional module 32 surrounding, described device body 31 is equiped with flash lamp transparent surface 34 and launches reception window 35, described reception window 35 of launching is positioned at the top of described distance measuring sensor functional module 32, described flash lamp transparent surface 34 is positioned at the top of several flash lamies 33 described and is connected with the described peripheral part receiving window 35 of launching.
It is also preferred that the left described above several enclose be located at distance measuring sensor functional module 32 surrounding flash lamp 33 adopt be LED (light emitting diode) flash lamp, there is the effect that subject is illuminated.
In the present embodiment, described distance measuring sensor functional module 32, what it adopted is FlightSenseTM technology, or it is called flight time measurement technology (Time-of-Flighttechnology), is namely reflected the accurate range data of time used offer by mensuration light by target object. The present embodiment VL6180X module that preferably this distance measuring sensor functional module 32 provides for ST Microelectronics, as shown in the figure, it incorporates FlightSenseTM closely sensor (proximitysensor) and ambient light sensor (ALS, ambient-lightsensor), basic gesture identification function is provided, simplify user-interface design, simultaneously can improving product performance. And the multinomial innovation and application on support the market, including smart mobile phone, panel computer, game pad, moreover it is possible to promote the performance of consumer electronics and industrial products.
Described VL6180X module adopts the exquisite optical package of 4.8mmx2.8mmx1.0mmLGA12, it is possible to according to working environment, accurately measures 100mm or farther target object. This module is equipped with I2C interface and two GPIO pin able to programme. Master controller passes through I2C Interface Controller optical module, reads the data of range finding or ambient light intensity; And GPIO pin can be passed through configuration and be realized performing thresholding (threshold) application.
Described VL6180X module, its searcher assesses external member allows designer can easily play whole potential of this closely sensor module, client can not only be allowed quickly to learn to use FlightSenseTM technology, also can support the application and development on physical device. This tool kit is containing pluggable USB interface, STM32Nucleo development board and VL6180X sensor expansion board. And VL6180X sensor expansion board incorporates sensor, LED4 position display screen and range finding and ambient light sensing function controls switch. Display screen can show target range or ambient light intensity.
Should with the flash lamp illumination module of closely ligh-ranging function, it is integrated with flash lamp 33 and distance measuring sensor functional module 32, flash lamp 33 has the function of illumination, distance measuring sensor functional module 32 then according to the power of the distance of distance and environment light, can be automatically adjusted the exposure index of flash lamp; And range measurement is fed back to camera lens module, it is achieved and the automatic focusing function of camera lens, make shooting more intelligent, far and near image is apparent, and image quality is more graceful.
In the present embodiment, described flash lamp transparent surface 34 is light-distribution lens, and what it adopted is transparent PC or PMMA material, it is also possible to for the resin that other is transparent.
In process of production, described light-distribution lens and transmitting receive window 35 and can adopt extra quality one-body molded or bi-material part combination mode.
Preferably, as shown in Figure 6, described light-distribution lens and the junction Formation cross-section launching reception window 35 are that " profile 4 of < " type does the extra quality molding of one, " profile 4 of < " type is more firm after can making bi-material molding for this, be not easy separated when being subject to external force downward or upward and promoting, " profile 4 of < " type can also increase the bond strength of its structure for this.
In the present embodiment, the described indent plane of incidence 3411 is indent conical surface.
The described material receiving window 35 of launching adopts IRPMMA or the IRPC (acrylic of infrared light, visible ray cut-off of saturating infrared band, or the polycarbonate resin of infrared light, visible ray cut-off), its transmission wave band is 700��1050nm, projection ratio more than 80%.
Described circuit board 1 can be flexible PCB (FPC) or printed circuit board (PCB) (PCB), it can also be can the flexible PCB (FPC) of coiling, or it is hard printing board PCB, in the present embodiment, described circuit board 1 preferably can the flexible PCB FPC of coiling.
It is also preferred that the left as it is shown on figure 3, described flash lamp 33 is provided with eight is distributed round described distance measuring sensor functional module 32 in circular, each flash lamp 33 at least 40lm, described light-distribution lens is the circular top being correspondingly arranged at described eight flash lamies 33. Certainly, the quantity of described flash lamp 33 does not make restriction, it is preferred to more than 2.
Wherein, as shown in Fig. 4 to Fig. 8, described light-distribution lens includes several light-distribution lens unit 341 being correspondingly arranged on several flash lamies 33 described, described light-distribution lens unit 341 includes the indent plane of incidence 3411 of transmissive flash lamp 33 light, total reflection side 3412 and exit plane 3413, the described indent plane of incidence 3411 is positioned at the surface of flash lamp 33, light sends from the light-emitting area center O point of described flash lamp 33, the light sent and the relatively larger a part of light (and the light between the angle of optical axis OZ about 40 �� to 65 ��) of the angle of optical axis OZ, after the indent plane of incidence 3411 incidence, incide on total reflection side 3412, incide the rim ray of total reflection side 3412 bottommost, after being reflected, exit plane 3413 from above exports, the angle of its output light and optical axis OZ is maximum light distribution angle, it is 40 degree, inciding the rim ray of total reflection the top, side 3412, after being reflected, exit plane 3413 from above exports, and its output light is parallel with optical axis OZ, and namely the angle of itself and optical axis OZ is minimum light distribution angle, and it is 0 degree. therefore all reflected by total reflection side, the optical axis OZ left and right sides 3412 and exit plane 3413 exports from above light, distribute with the scope that angle is �� 40 degree of optical axis within, namely beam angle full-shape is the scope of 80 degree, and and the smaller a part of light (and the light between the angle of optical axis OZ about 0 to 40 ��) of the angle of optical axis OZ, after the indent plane of incidence 3411 incidence, directly exit plane 3413 from above exports, it is not totally reflected side 3412 and is intercepted, after exit plane 3413 output from above of the light of this part, its maximum angle with optical axis OZ is also 40 degree. therefore all reflected by total reflection side, the optical axis OZ left and right sides 3412 and exit plane 3413 exports from above light, all distribute with the scope that angle is �� 40 degree of optical axis OZ within, namely beam angle full-shape is the scope of 80 degree, the light of this two parts luminous intensity distribution forms the more uniform light distribution of ratio of the scope that light velocity angle full-shape is 80 degree after being overlapped mutually, then 4 corner uniformitys of camera lens are all more than 30%. so-called optical axis OZ, it is the light-emitting area center O point through flash lamp 33, and is perpendicular to the axis of flash lamp 33 light-emitting area.
During in order to avoid observing from the exit plane 3413 of light-distribution lens unit 341 to module, can be appreciated that the structure of internal flash lamp 33 and circuit board 1 spare part affects the overall appearance degree of module, at the 90 degree of right angle CD ring grains 5 (the modification stricture of vagina being similar on CD with metallic reflection gloss) being arranged below total reflection of described light-distribution lens, the annular in this CD ring grain 5 and territory, module output optical zone is arranged concentrically. The light inside lens is incided outside light-distribution lens, after the total reflection of CD ring grain 5, along the outside of backtracking light-distribution lens, when therefore observing from the lateral of light-distribution lens, can't see the spare part of light-distribution lens routed underneath, and simply see the reflective of CD ring grain 5.
As shown in Figure 6, figure is positioned at 90 degree of right angle zigzag broken lines below light-distribution lens then for CD ring grain 5, outside light-distribution lens, incide the right angle hypotenuse below light-distribution lens of the light light-distribution lens can perform twice at total reflection, light after total reflection can along backtracking to light-distribution lens outside, therefore outside light-distribution lens, can't see light-distribution lens comprise below the electronic devices and components being positioned at circuit board 1, but see from being similar to the same reflective of mirror outside light-distribution lens.
In a kind of flash lamp illumination module with closely ligh-ranging function described in the present embodiment, in order to improve the aesthetics of entirety, described device body 31, flash lamp transparent surface 34 and transmitting receive window 35 and can be designed to variously-shaped,: as described in device body 31 be shaped as ellipse, what described flash lamp transparent surface 34 and launching received window 35 is shaped as ellipse, hexagon or square; If described device body 31 is generally circular in shape, described flash lamp transparent surface 34 and the shape launching reception window 35 can be oval, circular, hexagon or square; If be shaped as hexagon, described flash lamp transparent surface 34 and the shape launching reception window 35 of described device body 31 can be circular or hexagon; If be shaped as square, described flash lamp transparent surface 34 and the shape launching reception window 35 of described device body 31 can be oval, circular, hexagon or square. Can also is that other any shape collocation, do not make restriction.
Embodiment two
Present embodiments providing a kind of flash lamp illumination module with closely ligh-ranging function, this embodiment two is similar to above-described embodiment one, is different in that the structure of modification of light-distribution lens.
Refer to Fig. 9, the light-distribution lens of the present embodiment includes several light-distribution lens unit 341 being correspondingly arranged on several flash lamies 33 described, described light-distribution lens unit 341 includes the indent plane of incidence 3411, sawtooth pattern total reflection ring grain Fresnel surface 3414 and exit plane 3413, the present embodiment is radially divided into many tiny annulus the incidence surface of the total reflection side 3412 in the middle of embodiment one, it is divided into sawtooth pattern as depicted total reflection ring grain Fresnel surface 3414, this sawtooth pattern total reflection ring grain Fresnel surface 3414 arranges round the indent plane of incidence 3411 and is positioned at the surface of flash lamp 33, the described indent plane of incidence 3411 reduces relative to the indent plane of incidence 3411 in embodiment one, become the indent plane of incidence 3411 of the size less than 1/3 only accounting for incidence surface.
As shown in Figure 10 to Figure 11, light sends from the light-emitting area center O point of flash lamp 33, and a part of light (and the light between the angle of optical axis OZ about 40 �� to 65 ��) that the angle of optical axis OZ is relatively larger, incide on zigzag total reflection ring grain Fresnel surface 3414, inciding the rim ray of outermost annulus, after being reflected, exit plane 3413 from above exports, and angle of its output light and optical axis OZ is minimum light distribution angle, it is 0 degree, i.e. injection parallel with optical axis OZ; Incide the rim ray of zigzag total reflection ring grain Fresnel surface 3414 inner side annulus (i.e. the first lap annulus of the close indent plane of incidence 3411), after being reflected, exit plane 3413 from above exports, its output light and the angle of optical axis OZ are maximum light distribution angle, it is 40 ��, and namely full-shape is 80 degree. Therefore all are totally reflected ring grain Fresnel surface 3414 by optical axis OZ left and right sides zigzag and reflect and exit plane 3413 exports from above light, all distribute with the scope that angle is �� 40 degree of optical axis within, namely beam angle full-shape is the scope of 80 degree; And and the smaller a part of light (and the light between the angle of optical axis OZ about 0 to 40 ��) of the angle of optical axis OZ, after the indent plane of incidence 3411 incidence, directly exit plane 3413 from above exports, the output light of this part, its maximum angle with optical axis OZ is also 40 degree. Therefore all from the light that optical axis OZ left and right sides indent conical surface 3414 is incident and exit plane 3413 directly exports from above, all distribute with the scope that angle is �� 40 degree of optical axis within, namely beam angle full-shape is the scope of 80 degree. The light of this two parts luminous intensity distribution forms the more uniform light distribution of ratio of the scope that beam angle full-shape is 80 degree after being overlapped mutually, the uniformity in 4 corners of camera lens is more than 30%.
In the present embodiment, the described indent plane of incidence 3411 is indent conical surface.
Embodiment three
Present embodiments providing a kind of flash lamp illumination module with closely ligh-ranging function, this embodiment three is similar to above-described embodiment one, is different in that the structure of modification of light-distribution lens.
This embodiment be applicable to for flash lamp uniformity requirements higher in the case of, as biased toward closely or the camera head of microshot, likely require to take pictures the uniformity at 4 angles of picture more than 40%, the light-distribution lens unit so requiring flash lamp distributes more light to 4 angles of picture, namely beam angle is the position of �� 40 ��, at this moment by the light intensity decreasing of outgoing beam center, the position that more light is to �� 40 �� can be distributed.
Refer to Figure 12, the light-distribution lens of the present embodiment includes several light-distribution lens unit 341 being correspondingly arranged on several flash lamies 33 described, described light-distribution lens unit 341 includes the indent plane of incidence 3411 of transmissive flash lamp 33 light, total reflection side 3412, recessed total reflection conical surface 3415 and exit plane 3413, the described indent plane of incidence 3411 is positioned at the surface of flash lamp 33, the light that described flash lamp 33 sends is transmitted in light-distribution lens unit 341 through the indent plane of incidence 3411 and is penetrated from exit plane 3413 by the reflection of total reflection side 3412, or it is transmitted in light-distribution lens unit 341 by recessed total reflection conical surface 3415 to reflex on total reflection side 3412 again secondary reflection through the indent plane of incidence 3411 to penetrate from exit plane 3413.
As shown in Figure 13 to Figure 14, light sends from the light-emitting area center O point on flash lamp 33, and a part of light (and the light between the angle of optical axis OZ about 40 �� to 65 ��) that the angle of optical axis OZ is relatively larger, after the indent plane of incidence 3411 incidence, incide on total reflection side 3412, incide total reflection side 3412 rim ray topmost, after being reflected, exit plane 3413 from above exports, the angle of its output light and optical axis OZ is maximum light distribution angle, and it is 40 degree; Inciding the rim ray of total reflection side 3412 bottom, after being reflected, exit plane 3413 from above exports, and its output light is parallel with optical axis OZ, and namely the angle of itself and optical axis OZ is minimum light distribution angle, and it is 0 degree. Therefore all reflected by total reflection side, the optical axis OZ left and right sides 3412 and exit plane 3413 exports from above light, distribute with the scope that angle is �� 40 degree of optical axis within, namely beam angle full-shape is the scope of 80 degree; And and the smaller light of optical axis OZ angle (be preferably and the angle of optical axis OZ is between 0��30 ��), by having added a recessed total reflection conical surface 3415 in the position of exit plane 3413, a part can be assigned to the light of exit plane 3413 core by originally, through being again totally reflected, get on total reflection side 3412 again, through being totally reflected the secondary reflection again of side 3412, it is assigned to �� the position of 40 �� after exporting from exit plane 3413, plays the effect of 4 corner light fillings of shooting picture.
The described indent plane of incidence 3411, it can be sphere, conical surface, quadratic surface or be other polynomial surfaces, and being preferably sphere here, it does not change the direction of incident ray, is only carried out luminous intensity distribution by total reflection side 3412.
Embodiment four
Present embodiments provide a kind of flash lamp illumination module with closely ligh-ranging function, this embodiment four is similar to the aforementioned embodiment, it is different in that, launching described in above-described embodiment one or embodiment two or embodiment three that to receive window 35 be all plane, it does not have the function of collimation and optically focused, it is detectable apart from closer, may only distance within accurately detecting 100mm to 1 meter, for detection range farther out, owing to signal intensity is inadequate, the sensitivity of its detection is not high.
A collimation and condenser lens can be respectively provided with for 35 times launching reception window, preferably, refer to Figure 15, the present embodiment is totally reflected Fresnel Lenses 6 at the ring grain that is arranged below launching reception window 35, and this ring grain total reflection Fresnel Lenses 6 is correspondingly arranged on infrared transmitting tube 333 and the infrared receiving tube 334 of described distance measuring sensor functional module 32. The material of this ring grain total reflection Fresnel Lenses 6 adopts IRPMMA or the IRPC (acrylic of infrared light, visible ray cut-off of saturating infrared band, or the polycarbonate resin of infrared light, visible ray cut-off), its transmission wave band is 700��1050nm, projection ratio more than 80%. Described ring grain total reflection Fresnel Lenses 6, its zigzag inclined-plane is fully reflecting surface, is not plane of refraction, and light is transferred by it by the total reflection on inclined-plane.
Specifically, described ring grain total reflection Fresnel Lenses 6 has collimation and optically focused effect, ring grain total reflection Fresnel Lenses 6, is first collimated by the light that infrared transmitting tube 333 sends, light after collimation can penetrate distant distance, is irradiated to subject. The reflection light of subject is assembled by ring grain total reflection Fresnel Lenses 6 again that be positioned at opposite side, focuses on infrared receiving tube 334.
A kind of flash lamp illumination module with closely ligh-ranging function described in the present embodiment, by being totally reflected Fresnel Lenses 6 at the ring grain that has been arranged below launching reception window 35, transmitting and reception light are carried out collimating and assembling by respectively, launch and the energy of reception light is greatly concentrated, therefore the distance measured can be far a lot, and it can measure the distance of more than 3��5 meters.
Embodiment five
Embodiment provides a kind of flash lamp illumination module with closely ligh-ranging function, this embodiment five is similar to above-mentioned enforcement four, being different in that, it can also be respectively provided with a planar lens on transmitting reception window 35 and carry out collimating and assembling light. Described planar lens, the micro structure with focusing or alignment function is arranged in one plane by it, it can be the Fresnel Lenses of refractive, or diffraction lens (or it is hololens, English name DOE, DiffractiveOpticalElement, is covered with the micro structure of micron-sized ring grain or other shapes above it).
Preferably, in the present embodiment, refer to Figure 16, be provided with ring grain refractive type Fresnel lens 7 launching to receive on window 35, this ring grain refractive type Fresnel lens 7 is correspondingly arranged on infrared transmitting tube 333 and the infrared receiving tube 334 of described distance measuring sensor functional module 32. The material of described ring grain refractive type Fresnel lens 7 adopts IRPMMA or the IRPC (acrylic of infrared light, visible ray cut-off of saturating infrared band, or the polycarbonate resin of infrared light, visible ray cut-off), its transmission wave band is 700��1050nm, projection ratio more than 80%. Described refractive type Fresnel lens 7, its zigzag inclined-plane is plane of refraction, and light is transferred by it by the refraction on inclined-plane.
Specifically, described ring grain refractive type Fresnel lens 7 has collimation and optically focused effect, ring grain refractive type Fresnel lens 7, is first collimated by the light that infrared transmitting tube 333 sends, light after collimation can penetrate distant distance, is irradiated to subject. The reflection light of subject is assembled by refractive type Fresnel lens 7 again that be positioned at opposite side, focuses on infrared receiving tube 334.
A kind of flash lamp illumination module with closely ligh-ranging function described in the present embodiment, by receiving in transmitting, window 35 is provided with ring grain refractive type Fresnel lens 7, transmitting and reception light are carried out collimating and assembling by respectively, launch and the energy of reception light is highly concentrated, therefore the distance measured can be far a lot, and it can measure the distance of more than 3��5 meters.
Embodiment six
Present embodiments provide a kind of flash lamp illumination module with closely ligh-ranging function, this embodiment six part unlike the embodiments above is in that, refer to Figure 17, described flash lamp transparent surface 34 is CD ring grain, it is to be run through whole circumference by the CD ring grain of 90 ��, and placed the prism film 8 that lines is perpendicular with CD ring grain direction between this CD ring grain and flash lamp 33.
Refer to Figure 18, the direction of the prism pattern of described prism film 8 is radially, its be by the microprism of several V-shaped along radially by rotates display in the way of arrange and form, the CD stricture of vagina that its lines arranges with circumferentially direction, top intersects vertical.
Owing to prism film 8 itself has the effect that area source carries out optically focused, brightness enhancement film in backlight module, it is about the V-shaped micro-lens array of 90 �� for section profile wire clamp angle, light can be assembled by it in the direction being perpendicular to prism pattern, converges to the scope of about 70 �㡫about 80 ��.
The present embodiment have employed 2 orthogonal prisms of stripe direction, first is the prism pattern prism film 8 along arranged radially, and the outgoing beam of area source is first converged to the scope of seventy or eighty degree by it along the direction (i.e. circumferencial direction) being perpendicular to prism pattern. Second prism is CD ring grain itself, and the emergent light of area source is converged to, along the direction (i.e. radial direction) being perpendicular to prism pattern, the scope that beam angle is seventy or eighty degree by again.
Described prism film 8, it can also be formed by brightness enhancement film (BEF or the DBEF) cutting used on existing backlight module, it can be cut into the quantity identical with LED, and forms by splicing and combining, and stripe direction is perpendicular to the direction of top CD ring grain.
Embodiment seven
Present embodiments provide a kind of flash lamp illumination module with closely ligh-ranging function, this embodiment seven is similar to above-described embodiment six, it is different in that and instead of prism film 8 with microprism film 9, refer to Figure 19, described flash lamp transparent surface 34 is CD ring grain, it is to be run through whole circumference by the CD ring grain of 90 ��, and placed the microprism film 9 that lines is perpendicular with CD ring grain direction between this CD ring grain and flash lamp 33.
Refer to Figure 20, described microprism film 9, it is the diaphragm of miniature micro-prism array composition, and they are different from the prism array of embodiment six single direction arrangement, and the light incident from area source can be assembled by it being perpendicular to the several direction of seamed edge.
Embodiment eight
The present embodiment provides a kind of camera head, it includes a kind of flash lamp illumination module with closely ligh-ranging function described in any of the above-described embodiment, should with the flash lamp illumination module of closely ligh-ranging function except the function with illumination, weak according to environmental light intensity and subject distance can also carry out auto-focusing and regulate the light illumination mode (exposure index such as flash lamp of shooting, power including passage of scintillation light, scintillation time, or the parameters such as the colour temperature of passage of scintillation light), functionality is strong, which overcome the tradition problem for the flash lamp module function singleness of camera head, meet on market for the polyfunctional demand of flash lamp module.
Described camera head includes digital camera, video camera and the various electronic products with camera function such as mobile phone with photographic head.
Above-described embodiment is the present invention preferably embodiment; but embodiments of the present invention are also not restricted to the described embodiments; the change made under other any spirit without departing from the present invention and principle, modification, replacement, combination, simplification; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (25)
1. the flash lamp illumination module with closely ligh-ranging function, including circuit board (1), one end of described circuit board (1) is provided with control circuit pin (2), the other end of described circuit board (1) is electrically connected with flash lamp illumination device (3), it is characterized in that: described flash lamp illumination device (3) includes device body (31), it is arranged at the distance measuring sensor functional module (32) in device body (31) and uniformly encloses several flash lamies (33) being located at distance measuring sensor functional module (32) surrounding, described device body (31) is provided with flash lamp transparent surface (34) and launches reception window (35), described transmitting receives window (35) and is positioned at the top of described distance measuring sensor functional module (32), described flash lamp transparent surface (34) is positioned at the top of described several flash lamies (33) and is connected with the described peripheral part receiving window (35) of launching.
2. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 1, it is characterized in that: described distance measuring sensor functional module (32) is VL6180X module, and it is made up of closely sensor and ambient light sensor.
3. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 1, it is characterised in that: described flash lamp transparent surface (34) and transmitting receive window (35) and are formed in one.
4. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 1 or 3, it is characterised in that: described flash lamp transparent surface (34) and the junction Formation cross-section launching reception window (35) they are " the profile (4) of < " type.
5. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 1, it is characterized in that: the described material receiving window (35) of launching adopts IRPMMA or IRPC of saturating infrared band, its transmission wave band is 700��1050nm, projection ratio more than 80%.
6. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 1, it is characterized in that: described flash lamp transparent surface (34) be arranged below CD ring grain (5), this CD ring grain (5) at right angles zigzag broken line is arranged.
7. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 1, it is characterised in that: described circuit board (1) is can the flexible PCB FPC of coiling.
8. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 1, it is characterized in that: described flash lamp (33) is provided with eight and is distributed round described distance measuring sensor functional module (32) in circular, and described flash lamp transparent surface (34) is in the circular top being correspondingly arranged at described eight flash lamies (33).
9. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 1, it is characterised in that: described flash lamp transparent surface (34) is light-distribution lens, and what it adopted is transparent PC or PMMA material.
10. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 9, it is characterized in that: described flash lamp transparent surface (34) includes several light-distribution lens unit (341) being correspondingly arranged on described several flash lamies (33), described light-distribution lens unit (341) includes the indent plane of incidence (3411) of transmissive flash lamp (33) light, total reflection side (3412) and exit plane (3413), the described indent plane of incidence (3411) is positioned at the surface of flash lamp (33), the light that described flash lamp (33) sends is transmitted in light-distribution lens unit (341) through the indent plane of incidence (3411) and is penetrated from exit plane (3413) by the reflection of total reflection side (3412).
11. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 9, it is characterized in that: described flash lamp transparent surface (34) includes several light-distribution lens unit (341) being correspondingly arranged on described several flash lamies (33), described light-distribution lens unit (341) includes the indent plane of incidence (3411), sawtooth pattern total reflection ring grain Fresnel surface (3414) and exit plane (3413), described sawtooth pattern total reflection ring grain Fresnel surface (3414) arranges round the described indent plane of incidence (3411) and is positioned at the surface of flash lamp (33), the light that described flash lamp (33) sends is totally reflected ring grain Fresnel surface (3414) reflection by described sawtooth pattern and penetrates from exit plane (3413).
12. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 10 or 11, it is characterised in that: the described indent plane of incidence (3411) is indent conical surface.
13. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 9, it is characterized in that: described flash lamp transparent surface (34) includes several light-distribution lens unit (341) being correspondingly arranged on described several flash lamies (33), described light-distribution lens unit (341) includes the indent plane of incidence (3411) of transmissive flash lamp (33) light, total reflection side (3412), recessed total reflection conical surface (3415) and exit plane (3413), the described indent plane of incidence (3411) is positioned at the surface of flash lamp (33), the light that described flash lamp (33) sends is transmitted in light-distribution lens unit (341) through the indent plane of incidence (3411) and is penetrated from exit plane (3413) by the reflection of total reflection side (3412), or it is transmitted in light-distribution lens unit (341) by recessed total reflection conical surface (3415) to reflex in total reflection side (3412) again secondary reflection through the indent plane of incidence (3411) to penetrate from exit plane (3413).
14. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 13, it is characterised in that: the described indent plane of incidence (3411) is interior concave spherical surface.
15. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 1, it is characterized in that: the described ring grain that is arranged below receiving window (35) of launching is totally reflected Fresnel Lenses (6), and this ring grain total reflection Fresnel Lenses (6) is correspondingly arranged on infrared transmitting tube (333) and the infrared receiving tube (334) of described distance measuring sensor functional module (32).
16. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 15, it is characterized in that: the material of described ring grain total reflection Fresnel Lenses (6) adopts IRPMMA or IRPC of saturating infrared band, its transmission wave band is 700��1050nm, projection ratio more than 80%.
17. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 1, it is characterized in that: described transmitting is provided with ring grain refractive type Fresnel lens (7) in reception window (35), and this ring grain refractive type Fresnel lens (7) is correspondingly arranged on infrared transmitting tube (333) and the infrared receiving tube (334) of described distance measuring sensor functional module (32).
18. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 17, it is characterized in that: the material of described ring grain refractive type Fresnel lens (7) adopts IRPMMA or IRPC of saturating infrared band, its transmission wave band is 700��1050nm, projection ratio more than 80%.
19. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 1, it is characterized in that: described flash lamp transparent surface (34) is CD ring grain, be provided with prism film (8) between this CD ring grain and described flash lamp (33), described prism film (8) be by the microprism of several V-shaped along radially by rotates display in the way of arrange and form.
20. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 1, it is characterized in that: described flash lamp transparent surface (34) is CD ring grain, being provided with microprism film (9) between this CD ring grain and described flash lamp (33), described microprism film (9) is made up of several miniature micro-prism array.
21. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 1, it is characterized in that: be shaped as ellipse, described flash lamp transparent surface (34) and the transmitting of described device body (31) receive shape respectively oval, hexagon or the square of window (35).
22. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 1, it is characterized in that: described device body (31) generally circular in shape, described flash lamp transparent surface (34) and launch the shape respectively oval, circular, hexagon or the square that receive window (35).
23. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 1, it is characterized in that: be shaped as hexagon, described flash lamp transparent surface (34) and the transmitting of described device body (31) receive shape respectively circle or the hexagon of window (35).
24. a kind of flash lamp illumination module with closely ligh-ranging function according to claim 1, it is characterized in that: be shaped as square, described flash lamp transparent surface (34) and the transmitting of described device body (31) receive shape respectively oval, circular, hexagon or the square of window (35).
25. a camera head, it is characterised in that: include a kind of flash lamp illumination module with closely ligh-ranging function described in any one of claim 1��24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520844764.9U CN205283677U (en) | 2015-10-27 | 2015-10-27 | Flash light lighting module and camera device with ligh -ranging function closely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520844764.9U CN205283677U (en) | 2015-10-27 | 2015-10-27 | Flash light lighting module and camera device with ligh -ranging function closely |
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| Publication Number | Publication Date |
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| CN205283677U true CN205283677U (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520844764.9U Expired - Fee Related CN205283677U (en) | 2015-10-27 | 2015-10-27 | Flash light lighting module and camera device with ligh -ranging function closely |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106993069A (en) * | 2017-04-19 | 2017-07-28 | 联钢精密科技(苏州)有限公司 | A kind of ten flash lamp designs illuminated for mobile phone |
| WO2018120020A1 (en) * | 2016-12-30 | 2018-07-05 | 香港北大青鸟显示有限公司 | Light emitting diode micro-array flash |
| CN108513078A (en) * | 2017-02-24 | 2018-09-07 | 灯塔人工智能公司 | Method and system for capturing video image under low light condition using light emitting by depth sensing camera |
| CN111989721A (en) * | 2018-04-17 | 2020-11-24 | 联邦印制有限公司 | Method for verifying security features based on luminescent materials |
-
2015
- 2015-10-27 CN CN201520844764.9U patent/CN205283677U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018120020A1 (en) * | 2016-12-30 | 2018-07-05 | 香港北大青鸟显示有限公司 | Light emitting diode micro-array flash |
| CN108513078A (en) * | 2017-02-24 | 2018-09-07 | 灯塔人工智能公司 | Method and system for capturing video image under low light condition using light emitting by depth sensing camera |
| CN108513078B (en) * | 2017-02-24 | 2021-08-10 | 苹果公司 | Method and system for capturing video imagery under low light conditions using light emission by a depth sensing camera |
| CN106993069A (en) * | 2017-04-19 | 2017-07-28 | 联钢精密科技(苏州)有限公司 | A kind of ten flash lamp designs illuminated for mobile phone |
| CN111989721A (en) * | 2018-04-17 | 2020-11-24 | 联邦印制有限公司 | Method for verifying security features based on luminescent materials |
| CN111989721B (en) * | 2018-04-17 | 2023-07-14 | 联邦印制有限公司 | Method for verifying security features based on luminescent materials |
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