CN105306798B - A kind of flash lamp illumination module and photographic device with short distance ligh-ranging function - Google Patents

A kind of flash lamp illumination module and photographic device with short distance ligh-ranging function Download PDF

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Publication number
CN105306798B
CN105306798B CN201510718260.7A CN201510718260A CN105306798B CN 105306798 B CN105306798 B CN 105306798B CN 201510718260 A CN201510718260 A CN 201510718260A CN 105306798 B CN105306798 B CN 105306798B
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CN
China
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flash lamp
light
short distance
illumination module
lamp illumination
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CN201510718260.7A
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Chinese (zh)
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CN105306798A (en
Inventor
郎欢标
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东莞市美光达光学科技有限公司
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Publication of CN105306798A publication Critical patent/CN105306798A/en
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Publication of CN105306798B publication Critical patent/CN105306798B/en

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Abstract

The invention discloses a kind of flash lamp illumination modules and photographic device with short distance ligh-ranging function, the flash lamp illumination module with short distance ligh-ranging function includes circuit board, one end of circuit board is equipped with control circuit pin, the other end of circuit board is electrically connected with flash lamp illumination device, the flash lamp illumination device includes device body, the distance measuring sensor function module being set in device body and uniform several flash lamps for being disposed around distance measuring sensor function module surrounding, it is installed with flash lamp transparent surface on described device ontology and transmitting receives window, the transmitting receives the top that window is located at distance measuring sensor function module, the flash lamp transparent surface is located at the top of several flash lamps and is connected with the peripheral part of transmitting reception window.Make it in addition to that with illumination functions, auto-focusing can also be carried out according to the distance of ambient light power and subject and adjust the light illumination mode of shooting, overcome the problem of tradition has a single function flash lamp module.

Description

A kind of flash lamp illumination module and photographic device with short distance ligh-ranging function

Technical field

The present invention relates to electron image fields, specifically, being to be related to a kind of flash of light with short distance ligh-ranging function Lamp illumination module;Further relate to a kind of photographic device using the flash lamp illumination module with short distance ligh-ranging function.

Background technology

With the rapid development of multimedia technology, the photographic devices such as digital camera, video camera and the mobile phone with camera Increasingly favored by consumers in general.When being taken pictures using these photographic devices, sometimes because ambient light intensity not enough and The auxiliary of illumination is needed, that is, using general known flash lamp illumination module, flash lamp illumination module is can be very in short-term It is interior to send out very strong light, it is the photographic part of photosensitive.It is chiefly used in the occasion moment illumination of dark, is also used for light The brighter occasion of line gives subject part light filling, and low-profile is safe to use, easy to carry, and performance is stablized.

It is any not have other substantially other than being used to illuminate subject for existing flash lamp illumination module Function, do not have automatic light measuring, ranging and adjust exposure index (including the power of passage of scintillation light, scintillation time or The parameters such as the colour temperature of passage of scintillation light) etc. functions.As consumption market is for the high standard demand of photographic device, existing capability is simple Flash lamp module can not adapt to the nowadays fast-developing epoch.

Invention content

It is an object of the invention to overcome drawbacks described above in the prior art, providing one kind having illumination functions, can also root According to ambient light is strong and weak and the distance of subject carries out auto-focusing and adjust shooting light illumination mode carries short distance ligh-ranging The flash lamp illumination module of function.

Another object of the present invention is to provide a kind of taking the photograph for flash lamp illumination module with short distance ligh-ranging function As device.

To achieve the above object, technical solution provided by the invention is as follows:

A kind of flash lamp illumination module with short distance ligh-ranging function, including circuit board, one end of the circuit board Equipped with control circuit pin, the other end of the circuit board is electrically connected with flash lamp illumination device, the flash lamp illumination device Including device body, the distance measuring sensor function module being set in device body and uniformly it is disposed around distance measuring sensor function mould Several flash lamps of block surrounding, flash lamp transparent surface is installed on described device ontology and transmitting receives window, the transmitting The top that window is located at the distance measuring sensor function module is received, the flash lamp transparent surface is located at several described flash lamps Top and with it is described transmitting receive window peripheral part be connected.

Wherein, the distance measuring sensor function module is VL6180X modules, is by short distance sensor and ambient light Sensor is formed.

It is integrally formed preferably, the flash lamp transparent surface and transmitting receive window.

Preferably, the flash lamp transparent surface and transmitting receive window junction Formation cross-section be "<" type wheel It is wide.

In the above-mentioned technical solutions, the transmitting receives the material of window using the IR PMMA or IR of saturating infrared band PC, transmission band are 700~1050nm, 80% or more projection ratio.

Preferably, CD ring grains are provided with below the flash lamp transparent surface, the rectangular zigzag folding of the CD ring grains Line is arranged.

Preferably, the circuit board be can coiling flexible PCB FPC.

In the above-mentioned technical solutions, the flash lamp is equipped with eight in annular shape around the distance measuring sensor function mould Block is distributed, and the flash lamp transparent surface is correspondingly arranged at the top of eight flash lamps in annular shape.

Wherein, the flash lamp transparent surface is light-distribution lens, using transparent PC or PMMA materials.

In the above-mentioned technical solutions, the flash lamp transparent surface includes that several are correspondingly arranged at several described flash lamps On light-distribution lens unit, the light-distribution lens unit include transmissive flash lamp light the indent plane of incidence, total reflection side And exit plane, the indent plane of incidence are located at the surface of flash lamp, the light that the flash lamp is sent out is through the indent plane of incidence It is transmitted in light-distribution lens unit and is projected from exit plane by being totally reflected the reflection of side.

Preferably, the total reflection side be arranged to it is quincunx.

In the above-mentioned technical solutions, the flash lamp transparent surface includes that several are correspondingly arranged at several described flash lamps On light-distribution lens unit, the light-distribution lens unit includes that the indent plane of incidence, sawtooth pattern total reflection and go out ring grain Fresnel surface Optical plane, sawtooth pattern total reflection ring grain Fresnel surface around the indent plane of incidence be arranged and be located at flash lamp just on Side, the light that the flash lamp is sent out are totally reflected the reflection of ring grain Fresnel surface by the sawtooth pattern and are projected from exit plane.

Wherein, the indent plane of incidence is indent conical surface.

In the above-mentioned technical solutions, the flash lamp transparent surface includes that several are correspondingly arranged at several described flash lamps On light-distribution lens unit, the light-distribution lens unit include transmissive flash lamp light the indent plane of incidence, total reflection side, Recessed total reflection conical surface and exit plane, the indent plane of incidence are located at the surface of flash lamp, the flash lamp hair The light gone out through the indent plane of incidence be transmitted in light-distribution lens unit by be totally reflected side reflection projected from exit plane, Or it is transmitted in light-distribution lens unit through the indent plane of incidence and total reflection side is reflected by recessed total reflection conical surface On again secondary reflection projected from exit plane.

Wherein, the indent plane of incidence is interior concave spherical surface.

Preferably, the transmitting, which receives, is provided with ring grain total reflection Fresnel Lenses below window, the ring grain is complete Reflective Fresnel lens are correspondingly arranged on the infrared transmitting tube and infrared receiving tube of the distance measuring sensor function module.

Preferably, the material of the ring grain total reflection Fresnel Lenses uses the IR PMMA or IR of saturating infrared band PC, transmission band are 700~1050nm, 80% or more projection ratio.

Preferably, the transmitting receives is provided with ring grain refractive type Fresnel lens on window, the ring grain refractive Fresnel Lenses is correspondingly arranged on the infrared transmitting tube and infrared receiving tube of the distance measuring sensor function module.

Preferably, the material of the ring grain refractive type Fresnel lens uses the IR PMMA or IR of saturating infrared band PC, transmission band are 700~1050nm, 80% or more projection ratio.

In the above-mentioned technical solutions, the flash lamp transparent surface is CD ring grains, is set between the CD ring grains and the flash lamp It is equipped with prism film, the prism film is arranged in a manner of rotating display along radial direction by the microprism of several V-shaped.

In the above-mentioned technical solutions, the flash lamp transparent surface is CD ring grains, is set between the CD ring grains and the flash lamp It is equipped with microprism film, the microprism film is made of several miniature micro-prism array.

In the above-mentioned technical solutions, the shape of described device ontology is ellipse, and the flash lamp transparent surface and transmitting connect The shape for receiving window is respectively ellipse, hexagon, quincunx or square.

In the above-mentioned technical solutions, the shape of described device ontology is circle, and the flash lamp transparent surface and transmitting receive The shape of window is respectively ellipse, circle, hexagon, quincunx or square.

In the above-mentioned technical solutions, the shape of described device ontology is hexagon, and the flash lamp transparent surface and transmitting connect The shape for receiving window is respectively round, hexagon or quincunx.

In the above-mentioned technical solutions, the shape of described device ontology is quincunx, and the flash lamp transparent surface and transmitting connect The shape for receiving window is respectively round, hexagon or quincunx.

In the above-mentioned technical solutions, the shape of described device ontology is square, and the flash lamp transparent surface and transmitting connect The shape for receiving window is respectively ellipse, circle, hexagon, quincunx or square.

A kind of photographic device, including a kind of flash lamp illumination module with short distance ligh-ranging function described above.

Compared with prior art, the beneficial effects of the present invention are:

The flash lamp illumination module with short distance ligh-ranging function is integrated with several flash lamps and distance measuring sensor Function module is provided with transmitting in distance measuring sensor function module and receives window, is provided on several described flash lamps Flash lamp transparent surface, so as to which according to the power of the distance of distance and ambient light, the exposure for automatically adjusting flash lamp refers to Number, and distance measurement result is fed back into camera lens module, it realizes the automatic focusing function of camera lens, makes use should be with closely The camera function of the photographic device of the flash lamp illumination module of ligh-ranging function can it is more intelligent, far and near image is apparent, image quality It is more graceful.

Description of the drawings

With reference to the accompanying drawings and detailed description to a kind of sudden strain of a muscle with short distance ligh-ranging function of the present invention Light lamp illumination module and photographic device are described in further detail.

Fig. 1 is a kind of structural schematic diagram of flash lamp illumination module with short distance ligh-ranging function of the present invention One of;

Fig. 2 is a kind of structural schematic diagram of flash lamp illumination module with short distance ligh-ranging function of the present invention Two;

Fig. 3 is a kind of flash lamp illumination of flash lamp illumination module with short distance ligh-ranging function of the present invention The structural schematic diagram of device;

Fig. 4 is a kind of light-distribution lens of flash lamp illumination module with short distance ligh-ranging function of the present invention Structural schematic diagram;

Fig. 5 is the sectional view in the directions T-T in Fig. 3;

Fig. 6 is the sectional view in the directions X-X in Fig. 3;

Fig. 7 is a kind of work of flash lamp illumination module with short distance ligh-ranging function described in the embodiment of the present invention one Make one of schematic diagram;

Fig. 8 is a kind of work of flash lamp illumination module with short distance ligh-ranging function described in the embodiment of the present invention one Make the two of schematic diagram;

Fig. 9 is a kind of structure of the flash lamp illumination module with short distance ligh-ranging function described in the embodiment of the present invention two Schematic diagram;

Figure 10 is a kind of work of the flash lamp illumination module with short distance ligh-ranging function described in the embodiment of the present invention two Make one of schematic diagram;

Figure 11 is a kind of work of the flash lamp illumination module with short distance ligh-ranging function described in the embodiment of the present invention two Make the two of schematic diagram;

Figure 12 is a kind of knot of the flash lamp illumination module with short distance ligh-ranging function described in the embodiment of the present invention three Structure schematic diagram;

Figure 13 is a kind of work of the flash lamp illumination module with short distance ligh-ranging function described in the embodiment of the present invention three Make one of schematic diagram;

Figure 14 is a kind of work of the flash lamp illumination module with short distance ligh-ranging function described in the embodiment of the present invention three Make the two of schematic diagram;

Figure 15 is a kind of knot of the flash lamp illumination module with short distance ligh-ranging function described in the embodiment of the present invention four Structure schematic diagram;

Figure 16 is a kind of knot of the flash lamp illumination module with short distance ligh-ranging function described in the embodiment of the present invention five Structure schematic diagram;

Figure 17 is a kind of knot of the flash lamp illumination module with short distance ligh-ranging function described in the embodiment of the present invention six Structure schematic diagram;

Figure 18 is a kind of rib of the flash lamp illumination module with short distance ligh-ranging function described in the embodiment of the present invention six The structural schematic diagram of mirror film;

Figure 19 is a kind of knot of the flash lamp illumination module with short distance ligh-ranging function described in the embodiment of the present invention seven Structure schematic diagram;

Figure 20 is a kind of the micro- of the flash lamp illumination module with short distance ligh-ranging function described in the embodiment of the present invention seven The structural schematic diagram of prism film.

Specific implementation mode

It is a kind of flash lamp illumination module and photographic device with short distance ligh-ranging function of the present invention below Therefore preferred example does not limit protection scope of the present invention.

Embodiment one

It please refers to Fig.1 to Fig. 3, a kind of flash lamp illumination module with short distance ligh-ranging function is shown in figure, wrap Circuit board 1 is included, one end of the circuit board 1 is equipped with control circuit pin 2, and the other end of the circuit board 1 is electrically connected with flash of light Lamp lighting apparatus 3, the flash lamp illumination device 3 include device body 31, the distance measuring sensor being set in device body 31 Function module 32 and several flash lamps 33 for being uniformly disposed around 32 surrounding of distance measuring sensor function module, described device ontology 31 On be installed with flash lamp transparent surface 34 and transmitting receives window 35, transmitting reception window 35 is located at the distance measuring sensor work( The top of energy module 32, the top that the flash lamp transparent surface 34 is located at several flash lamps 33 are simultaneously received with the transmitting The peripheral part of window 35 is connected.

Preferably, several described above are disposed around the use of flash lamp 33 of 32 surrounding of distance measuring sensor function module It is LED (light emitting diode) flash lamp, has the function of illuminating subject.

In the present embodiment, the distance measuring sensor function module 32, using FlightSenseTM technologies, or Person is called flight time measurement technology (Time-of-Flight technology), i.e., anti-by target object by measuring light It is emitted back towards and the accurate range data of time offer used is provided.The present embodiment preferably distance measuring sensor function module 32 is that meaning method is partly led The VL6180X modules that body company provides, as shown, it incorporates FlightSenseTM short distance sensors (proximity Sensor) with ambient light sensor (ALS, ambient-light sensor), basic gesture identification function is provided, is simplified User-interface design, while properties of product can be promoted.And the multinomial innovation and application on support the market, including it is smart mobile phone, flat Plate computer, game pad, moreover it is possible to promote the performance of consumer electronics and industrial products.

The VL6180X modules use the exquisite optical package of 4.8mm x 2.8mm x 1.0mm LGA12, can basis Working environment, it is accurate to measure 100mm or farther target objects.The module is equipped with I2C interface and two programmable GPIO draw Foot.Master controller controls optical module by I2C interface, reads the data of ranging or ambient light intensity;And GPIO pin can be through It crosses configuration and realizes that executing thresholding (threshold) applies.

The VL6180X modules, searcher, which assesses external member, allows designer that can easily play this closely sense The whole potential for surveying device module can not only allow client quickly to learn to use FlightSenseTM technologies, can also support actually setting Standby upper application and development.The tool includes pluggable USB interface, STM32Nucleo development boards and the extension of VL6180X sensors Plate.And VL6180X sensor expansion board incorporates sensor, 4 display screens of LED and ranging and ambient light sensing function control System switch.Display screen can display target distance or ambient light intensity.

This carries the flash lamp illumination module of short distance ligh-ranging function, is integrated with flash lamp 33 and distance measuring sensor Function module 32, flash lamp 33 have the function of illumination, distance measuring sensor function module 32 then can according to the distance of distance, with And the power of ambient light, automatically adjust the exposure index of flash lamp;And distance measurement result is fed back into camera lens module, realize camera lens Automatic focusing function, keep shooting more intelligent, far and near image is apparent, and image quality is more graceful.

In the present embodiment, the flash lamp transparent surface 34 is light-distribution lens, using transparent PC or PMMA materials Matter, or other transparent resins.

In process of production, the light-distribution lens and transmitting receive window 35 and extra quality integrated molding or two kinds of materials can be used Part combination mode.

Preferably, as shown in fig. 6, the light-distribution lens and transmitting receive window 35 junction Formation cross-section be "<" type Profile 4 do the extra quality molding of one, should "<" type profile 4 can make it is more firm after the molding of two kinds of materials, when by downwards or to On external force push when be not easy to be detached, should "<" profile 4 of type can also increase the bond strength of its structure.

In the present embodiment, the indent plane of incidence 3411 is indent conical surface.

It is described transmitting receive window 35 material using saturating infrared band IR PMMA or IR PC (infrared light, can The acrylic or infrared light of light-exposed cut-off, visible light cut-off polycarbonate resin), transmission band is 700~ 1050nm, 80% or more projection ratio.

The circuit board 1 can be flexible PCB (FPC) or printed circuit board (PCB), and may be can coiling Flexible PCB (FPC), or be hard printing board PCB, in the present embodiment, the circuit board 1 preferably can coiling Flexible PCB FPC.

Preferably, as shown in figure 3, the flash lamp 33 is equipped with eight in annular shape around the distance measuring sensor function Module 32 is distributed, and at least 40lm of each flash lamp 33, the light-distribution lens are correspondingly arranged at eight flash lamps in annular shape 33 top.Certainly, the quantity of the flash lamp 33 does not define, preferably 2 or more.

Wherein, as shown in Fig. 4 to Fig. 8, the light-distribution lens include that several are correspondingly arranged at several described flash lamps Light-distribution lens unit 341 on 33, the light-distribution lens unit 341 include the indent plane of incidence of 33 light of transmissive flash lamp 3411, it is totally reflected side 3412 and exit plane 3413, the indent plane of incidence 3411 is located at the surface of flash lamp 33, light It is sent out from the light-emitting surface center O points of the flash lamp 33, the light sent out a part of light bigger with the angle of optical axis OZ Line (light between about 40 ° to 65 ° of the angle of optical axis OZ), after 3411 incidence of the indent plane of incidence, is incident on and is all-trans It penetrates on side 3412, the rim ray of total reflection 3412 bottommost of side is incident on, from the exit plane of top after reflection 3413 outputs, output light and the angle of optical axis OZ are maximum light distribution angle, are 40 degree;It is incident on total reflection side 3412 The rim ray of the top exports after reflection from the exit plane of top 3413, and output light is parallel with optical axis OZ, i.e., The angle of itself and optical axis OZ are minimum light distribution angle, are 0 degree.Therefore all to be totally reflected side 3412 at left and right sides of optical axis OZ It reflects and from the light that top exit plane 3413 exports, distributes within the scope of the angle with optical axis is ± 40 degree, i.e. light The range that beam angle full-shape is 80 degree;And a part of light smaller with the angle of optical axis OZ (with the angle about 0 of optical axis OZ to Light between 40 °), after 3411 incidence of the indent plane of incidence, directly exported from the exit plane of top 3413, not It is totally reflected side 3412 to be intercepted, the light of this part is after the output of the exit plane 3413 of top, most with optical axis OZ Mitre is also 40 degree.Therefore all by total reflection side 3412 reflection at left and right sides of optical axis OZ and from top exit plane The light of 3413 outputs, is all distributed within the scope of the angle with optical axis OZ is ± 40 degree, i.e., beam angle full-shape is 80 degree Range, the light of this two parts light distribution forms the range that light velocity angle full-shape is 80 degree relatively uniform light after being overlapped mutually divide Cloth, then the 4 of the camera lens corner uniformity is more than 30%.So-called optical axis OZ, for by the light-emitting surface center O of flash lamp 33 Point, and perpendicular to the axis of 33 light-emitting surface of flash lamp.

Preferably, the total reflection side 3412 is arranged to quincunx, effect is to outgoing beam in the direction of circumference Mixed light is carried out, keeps the colour temperature of output beam more uniform.

In order to avoid from the exit plane 3413 of light-distribution lens unit 341 is to from the inside of module when, can be appreciated that internal sudden strain of a muscle The structure of 1 spare part of light lamp 33 and circuit board and the overall aesthetic degree for influencing module, are provided with below the light-distribution lens 90 degree of right angle CD ring grains 5 (being similar to the modification line with metallic reflection gloss on CD) of total reflection, which goes out with module The circular ring shape in light region is arranged concentrically.The light being incident on the outside of from light-distribution lens inside lens, by being all-trans for CD ring grains 5 After penetrating, along the outside of backtracking light-distribution lens, therefore from the outside of light-distribution lens inwards from when, can't see under light-distribution lens The spare part just arranged, and only see the reflective of 5 face of CD ring grains.

As shown in fig. 6,90 degree of right angle zigzag broken lines being located in figure below light-distribution lens are then CD ring grains 5, from light distribution The light being incident in light-distribution lens on the outside of lens can be totally reflected twice by the right angle bevel edge below light-distribution lens, be all-trans Light after penetrating can be on the outside of backtracking to light-distribution lens, therefore can't see below light-distribution lens on the outside of light-distribution lens and include Electronic component on circuit board 1, but see and be similar to the same reflective of mirror on the outside of light-distribution lens.

It is whole in order to improve in a kind of flash lamp illumination module with short distance ligh-ranging function described in the present embodiment The aesthetics of body, described device ontology 31, flash lamp transparent surface 34 and transmitting receive window 35 can be designed to it is variously-shaped, Such as:The shape of described device ontology 31 is ellipse, and the shape that the flash lamp transparent surface 34 and transmitting receive window 35 is ellipse Circle, hexagon, quincunx or square;If the shape of described device ontology 31 is circle, 34 He of flash lamp transparent surface The shape that transmitting receives window 35 can be ellipse, circle, hexagon, quincunx or square;If described device ontology 31 Shape be hexagon, the shape that the flash lamp transparent surface 34 and transmitting receive window 35 can be round, hexagon or plum Flower-shape;If the shape of described device ontology 31 is quincunx, the shape of the flash lamp transparent surface 34 and transmitting reception window 35 It can be round, hexagon or quincunx;If the shape of described device ontology 31 is square, 34 He of flash lamp transparent surface The shape that transmitting receives window 35 can be ellipse, circle, hexagon, quincunx or square.It can also be other any Shape collocation, do not define.

Embodiment two

Present embodiments provide a kind of flash lamp illumination module with short distance ligh-ranging function, the embodiment two with it is upper State that embodiment one is similar, the difference is that the structure of modification of light-distribution lens.

It is correspondingly arranged on several described flash lamps 33 referring to FIG. 9, the light-distribution lens of the present embodiment include several Light-distribution lens unit 341, the light-distribution lens unit 341 include the indent plane of incidence 3411, sawtooth pattern be totally reflected ring grain phenanthrene alunite That face 3414 and exit plane 3413, incidence surface edge of the present embodiment quincuncial total reflection side 3412 in embodiment one Radial direction is divided into many tiny annulus, and sawtooth pattern as shown in the figure is divided into be totally reflected ring grain Fresnel surface 3414, the sawtooth Type is totally reflected the surface that ring grain Fresnel surface 3414 is arranged and is located at flash lamp 33 around the indent plane of incidence 3411, described interior The recessed plane of incidence 3411 is reduced relative to the indent plane of incidence 3411 in embodiment one, becomes the size 1/3 for only accounting for incidence surface The indent plane of incidence 3411 below.

As shown in Figure 10 to Figure 11, light is sent out from the light-emitting surface center O points of flash lamp 33, the angle ratio with optical axis OZ It is luxuriant and rich with fragrance to be incident on zigzag total reflection ring grain for larger portion light (light between about 40 ° to 65 ° of the angle of optical axis OZ) On the faces Nie Er 3414, it is incident on the rim ray of outermost side ring, is exported from the exit plane of top 3413 after reflection, Output light and the angle of optical axis OZ are minimum light distribution angle, are 0 degree, i.e., injection parallel with optical axis OZ;It is incident on zigzag It is totally reflected the rim ray of 3414 most inner side annulus of ring grain Fresnel surface (i.e. close to the first lap annulus of the indent plane of incidence 3411), It being exported from the exit plane of top 3413 after reflection, output light and the angle of optical axis OZ are maximum light distribution angle, It is 40 °, i.e., full-shape is 80 degree.Therefore all anti-by zigzag total reflection ring grain Fresnel surface 3414 at left and right sides of optical axis OZ It penetrates and from the light that top exit plane 3413 exports, all distributes within the scope of the angle with optical axis is ± 40 degree, i.e. light The range that beam angle full-shape is 80 degree;And a part of light smaller with the angle of optical axis OZ (with the angle about 0 of optical axis OZ to Light between 40 °), after 3411 incidence of the indent plane of incidence, directly exported from the exit plane of top 3413, this part Output light, be also 40 degree with the maximum angle of optical axis OZ.Therefore all indent conical surfaces at left and right sides of optical axis OZ 3414 is incident and from the light that top exit plane 3413 directly exports, and all distributes the model for being ± 40 degree in the angle with optical axis Within enclosing, i.e., beam angle full-shape is 80 degree of range.The light of this two parts light distribution forms beam angle full-shape after being overlapped mutually The uniformity of the relatively uniform light distribution of 80 degree of range, 4 corners of camera lens is more than 30%.

In the present embodiment, the indent plane of incidence 3411 is indent conical surface.

Embodiment three

Present embodiments provide a kind of flash lamp illumination module with short distance ligh-ranging function, the embodiment three with it is upper State that embodiment one is similar, the difference is that the structure of modification of light-distribution lens.

The embodiment is suitable for the case where for flash lamp uniformity requirements higher, such as biases toward closely or microspur is clapped The photographic device taken the photograph, it is possible to it is required that the uniformity at 4 angles of picture of taking pictures is more than 40%, then requiring the light distribution of flash lamp saturating Mirror unit distributes more light to 4 angles of picture, i.e., the position that beam angle is ± 40 ° at this moment can be by outgoing beam centre bit The light intensity decreasing set distributes more light to ± 40 ° of position.

2 are please referred to Fig.1, the light-distribution lens of the present embodiment include that several are correspondingly arranged on several described flash lamps 33 Light-distribution lens unit 341, the indent plane of incidence 3411 of the light-distribution lens unit 341 including 33 light of transmissive flash lamp, Total reflection side 3412, recessed total reflection conical surface 3415 and exit plane 3413, the indent plane of incidence 3411 are located at The surface of flash lamp 33, the light that the flash lamp 33 is sent out are transmitted to light-distribution lens unit 341 through the indent plane of incidence 3411 The interior reflection by being totally reflected side 3412 is projected from exit plane 3413 or is transmitted to light distribution through the indent plane of incidence 3411 Secondary reflection is reflected on total reflection side 3412 again from light extraction by recessed total reflection conical surface 3415 in lens unit 341 It is projected at plane 3413.

As shown in Figure 13 to Figure 14, light is sent out from the light-emitting surface center O points on flash lamp 33, the angle with optical axis OZ Bigger a part of light (light between about 40 ° to 65 ° of the angle of optical axis OZ), it is incident by the indent plane of incidence 3411 Later, be incident on total reflection side 3412 on, be incident on total reflection 3412 the top of side rim ray, after reflection from The exit plane 3413 of top exports, and output light and the angle of optical axis OZ are maximum light distribution angle, is 40 degree;It is incident on It is totally reflected the rim ray of 3412 bottom of side, is exported from the exit plane of top 3413 after reflection, output light Parallel with optical axis OZ, i.e., the angle of itself and optical axis OZ are minimum light distribution angle, are 0 degree.Therefore all by optical axis OZ or so two The light that side is totally reflected the reflection of side 3412 and is exported from top exit plane 3413, distribution are ± 40 in the angle with optical axis Within the scope of degree, i.e., beam angle full-shape is 80 degree of range;And the light smaller with optical axis OZ angles is (preferably and optical axis The angle of OZ is between 0~30 °), by having added a recessed total reflection conical surface in the position of exit plane 3413 3415, a part can be assigned to the light of 3413 central part of exit plane originally, by being totally reflected again, then got to complete In mirrored sides 3412, through being totally reflected the secondary reflection again of side 3412, ± 40 ° of position is assigned to after the output of exit plane 3413 It sets, plays the role of 4 corner light fillings of shooting picture.

The indent plane of incidence 3411 can be spherical surface, conical surface, quadratic surface or be other multinomials song Face, is preferably spherical surface here, does not change the direction of incident ray, only carries out light distribution by being totally reflected side 3412.

Example IV

Present embodiments provide a kind of flash lamp illumination module with short distance ligh-ranging function, the example IV with it is upper It is similar to state embodiment, the difference is that, transmitting described in above-described embodiment one or embodiment two or embodiment three receives window 35 All it is plane, does not collimate and the function of optically focused, detectable distance is closer, may only be accurately detecting 100mm to 1 meters Within distance, for detection range farther out, since signal strength is inadequate, detection sensitivity it is not high.

A collimation and condenser lens can be respectively set in the case where transmitting receives window 35, it is preferred that please refer to Fig.1 5, this reality It applies example and the lower section of transmitting reception window 35 is provided with ring grain total reflection Fresnel Lenses 6, which is totally reflected Fresnel Lenses 6 It is correspondingly arranged on infrared transmitting tube 333 and the infrared receiving tube 334 of the distance measuring sensor function module 32.The ring grain is all-trans The material of Fresnel Lenses 6 is penetrated using IR PMMA or IR the PC (Ya Ke that infrared light, visible light end of saturating infrared band Power or infrared light, visible light cut-off polycarbonate resin), transmission band is 700~1050nm, projection ratio 80% with On.The ring grain is totally reflected Fresnel Lenses 6, and zigzag inclined-plane is fully reflecting surface, is not plane of refraction, passes through inclined-plane Light is transferred in total reflection.

Specifically, there is the ring grain total reflection Fresnel Lenses 6 collimation and focusing light effect, ring grain to be totally reflected Fresnel Lens 6 first collimate the light that infrared transmitting tube 333 is sent out, and the light after collimation can project distant distance, shine It is mapped to subject.Ring grain total reflection Fresnel Lenses 6 positioned at the other side is again by the reflected light of subject into guild It is poly-, it focuses on infrared receiving tube 334.

A kind of flash lamp illumination module with short distance ligh-ranging function described in the present embodiment, by being received in transmitting The lower section of window 35 is provided with ring grain and is totally reflected Fresnel Lenses 6, will emit respectively and reception light is collimated and assembled, The distance that transmitting and the energy for receiving light are greatly concentrated, therefore measured can be far very much, can measure 3~5 meters with On distance.

Embodiment five

Embodiment provides a kind of flash lamp illumination module with short distance ligh-ranging function, the embodiment five with it is above-mentioned Implement it is four similar, the difference is that, can also be received in transmitting and on window 35 planar lens be respectively set and carry out Collimation and convergence light.The planar lens, in one plane by the micro-structure arrangement with focusing or alignment function, It can be refractive Fresnel Lenses or diffraction lens (or be hololens, English name DOE, Diffractive Optical Element, top are covered with the micro-structure of micron-sized ring grain or other shapes).

Preferably, in the present embodiment, 6 are please referred to Fig.1, is received in transmitting and is provided with ring grain refractive phenanthrene alunite on window 35 That lens 7, the ring grain refractive type Fresnel lens 7 are correspondingly arranged at the infrared transmitting tube of the distance measuring sensor function module 32 333 and infrared receiving tube 334 on.The material of the ring grain refractive type Fresnel lens 7 using saturating infrared band IR PMMA or IR PC (polycarbonate resin that infrared light, the acrylic of visible light cut-off or infrared light, visible light end), thoroughly Ejected wave section is 700~1050nm, 80% or more projection ratio.The refractive type Fresnel lens 7, zigzag inclined-plane are refraction Light is transferred by the refraction on inclined-plane in face.

Specifically, the ring grain refractive type Fresnel lens 7 have collimation and focusing light effect, ring grain refractive type Fresnel Lens 7 first collimate the light that infrared transmitting tube 333 is sent out, and the light after collimation can project distant distance, shine It is mapped to subject.Refractive type Fresnel lens 7 positioned at the other side collect again by the reflected light of subject into line convergence In on infrared receiving tube 334.

A kind of flash lamp illumination module with short distance ligh-ranging function described in the present embodiment, by being received in transmitting It is provided with ring grain refractive type Fresnel lens 7 on window 35, will emit respectively and reception light is collimated and assembled, and emit The distance highly concentrated with the energy for receiving light, therefore measured can be far very much, can measure 3~5 meters or more Distance.

Embodiment six

Present embodiments provide a kind of flash lamp illumination module with short distance ligh-ranging function, the embodiment six with it is upper State embodiment the difference is that, please refer to Fig.1 7, the flash lamp transparent surface 34 is CD ring grains, is by 90 ° of CD ring grains Through whole circumference, and it placed lines and the perpendicular prism film in CD ring grains direction between the CD ring grains and flash lamp 33 8。

8 are please referred to Fig.1, the direction of the prism pattern of the prism film 8 is radial, is the microprism by several V-shaped It is arranged in a manner of rotating display along radial direction, lines intersects vertical with the CD lines that top is arranged by circumferencial direction Directly.

It is to cut open such as the brightness enhancement film in backlight module since prism film 8 itself has the function of area source carrying out optically focused The V-shaped micro-lens array that facial contour wire clamp angle is about 90 °, can perpendicular to the direction of prism pattern by light into guild It is poly-, converge to about 70 °~80 ° or so of range.

The present embodiment uses 2 orthogonal prisms of stripe direction, and first is prism pattern along arranged radially The outgoing beam of area source is first converged to seventy or eighty by prism film 8 along perpendicular to the direction of prism pattern (i.e. circumferencial direction) The range of degree.Second prism is CD ring grains itself, then by the emergent light of area source along perpendicular to the direction of prism pattern (i.e. Radial direction) it is converged to the range that beam angle is seventy or eighty degree.

The prism film 8 can also be cut by the brightness enhancement film (BEF either DBEF) used on existing backlight module It forms, quantity identical with LED can be cut into, and by splicing and combining, stripe direction is perpendicular to top CD ring grains Direction.

Embodiment seven

Present embodiments provide a kind of flash lamp illumination module with short distance ligh-ranging function, the embodiment seven with it is upper It is similar to state embodiment six, the difference is that please referring to Fig.1 9, the flash lamp light transmission instead of prism film 8 with microprism film 9 Face 34 is CD ring grains, is to run through whole circumference by 90 ° of CD ring grains, and placed between the CD ring grains and flash lamp 33 Lines and the perpendicular microprism film 9 in CD ring grains direction.

0 is please referred to Fig.2, the microprism film 9 is the diaphragm of miniature micro-prism array composition, with embodiment The prism array of six single directions arrangements is different, can perpendicular to the several directions of seamed edge by from the light of area source incidence into Line convergence.

Embodiment eight

The present embodiment provides a kind of photographic devices comprising one kind described in any of the above-described embodiment carries short distance flash ranging Flash lamp illumination module away from function should carry the flash lamp illumination module of short distance ligh-ranging function in addition to the work(with illumination Can be outer, auto-focusing can also be carried out according to the distance of ambient light power and subject and adjust the light illumination mode of shooting (such as The parameters such as the exposure index of flash lamp, including the colour temperature of the power of passage of scintillation light, scintillation time or passage of scintillation light), functionality By force, the problem of being had a single function for the flash lamp module of photographic device which overcome tradition, meets in the market for flash lamp The demand of module multifunctionality.

The photographic device, which includes that digital camera, video camera and mobile phone with camera etc. are various, carries camera function Electronic product.

The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications, Equivalent substitute mode is should be, is included within the scope of the present invention.

Claims (26)

1. a kind of flash lamp illumination module with short distance ligh-ranging function, including circuit board (1), the circuit board (1) One end is equipped with control circuit pin (2), and the other end of the circuit board (1) is electrically connected with flash lamp illumination device (3), feature It is:The distance measuring sensor work(that the flash lamp illumination device (3) includes device body (31), is set in device body (31) Energy module (32) and several flash lamps (33) for being uniformly disposed around distance measuring sensor function module (32) surrounding, described device sheet Body (31) is equipped with flash lamp transparent surface (34) and transmitting receives window (35), and the transmitting receives window (35) and is located at the survey Top away from sensor function module (32), the flash lamp transparent surface (34) are located at the top of several flash lamps (33) And be connected with the peripheral part of the transmitting reception window (35), the flash lamp transparent surface (34) includes that several are correspondingly arranged Light-distribution lens unit (341) on several described flash lamps (33), the light-distribution lens unit (341) include indent incidence Face (3411), sawtooth pattern total reflection ring grain Fresnel surface (3414) and exit plane (3413), the sawtooth pattern are totally reflected ring grain Fresnel surface (3414) is arranged around the indent plane of incidence (3411) and positioned at the surface of flash lamp (33), the flash of light The light that lamp (33) is sent out is totally reflected ring grain Fresnel surface (3414) by the sawtooth pattern and reflects at exit plane (3413) It projects.
2. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1, it is characterised in that: The distance measuring sensor function module (32) is VL6180X modules, is by short distance sensor and ambient light sensor institute Composition.
3. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1, it is characterised in that: The flash lamp transparent surface (34) and transmitting receive window (35) and are integrally formed.
4. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1 or 3, feature exist In:The flash lamp transparent surface (34) and transmitting receive window (35) junction Formation cross-section be "<" type profile (4).
5. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1, it is characterised in that: It is described transmitting receive window (35) material use saturating infrared band IR PMMA or IR PC, transmission band be 700~ 1050nm, 80% or more projection ratio.
6. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1, it is characterised in that: CD ring grains (5) are provided with below the flash lamp transparent surface (34), the CD ring grains (5) at right angles zigzag broken line setting.
7. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1, it is characterised in that: The circuit board (1) be can coiling flexible PCB FPC.
8. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1, it is characterised in that: The flash lamp (33) is equipped with eight, is distributed around the distance measuring sensor function module (32) in circular, the sudden strain of a muscle Light lamp transparent surface (34) is correspondingly arranged at the top of eight flash lamps (33) in annular shape.
9. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1, it is characterised in that: The flash lamp transparent surface (34) is light-distribution lens, using transparent PC or PMMA materials.
10. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 9, feature exist In:The flash lamp transparent surface (34) includes the light-distribution lens list that several are correspondingly arranged on several described flash lamps (33) First (341), the light-distribution lens unit (341) include the indent plane of incidence (3411) of transmissive flash lamp (33) light, are all-trans Side (3412) and exit plane (3413) are penetrated, the indent plane of incidence (3411) is located at the surface of flash lamp (33), described The light that flash lamp (33) is sent out is transmitted in light-distribution lens unit (341) through the indent plane of incidence (3411) by being totally reflected side (3412) reflection is projected at exit plane (3413).
11. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 10, feature exist In:The total reflection side (3412) is arranged to quincunx.
12. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1 or 10, feature It is:The indent plane of incidence (3411) is indent conical surface.
13. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 9, feature exist In:The flash lamp transparent surface (34) includes the light-distribution lens list that several are correspondingly arranged on several described flash lamps (33) First (341), the light-distribution lens unit (341) include the indent plane of incidence (3411) of transmissive flash lamp (33) light, are all-trans Penetrate side (3412), recessed total reflection conical surface (3415) and exit plane (3413), the indent plane of incidence (3411) Surface positioned at flash lamp (33), it is saturating that the light that the flash lamp (33) sends out through the indent plane of incidence (3411) is transmitted to light distribution It is projected at exit plane (3413) or through indent incidence in mirror unit (341) by being totally reflected the reflection of side (3412) Face (3411) is transmitted in light-distribution lens unit (341) and is reflected into full reflection side by recessed total reflection conical surface (3415) Secondary reflection projects at exit plane (3413) again on face (3412).
14. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 13, feature exist In:The indent plane of incidence (3411) is interior concave spherical surface.
15. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1, feature exist In:The transmitting receives and is provided with ring grain total reflection Fresnel Lenses (6) below window (35), which is totally reflected Fresnel Lens (6) are correspondingly arranged at the infrared transmitting tube (333) and infrared receiving tube (334) of the distance measuring sensor function module (32) On.
16. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 15, feature exist In:The material of the ring grain total reflection Fresnel Lenses (6) uses IR PMMA or the IR PC of saturating infrared band, transmission band For 700~1050nm, 80% or more projection ratio.
17. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1, feature exist In:The transmitting receives and is provided with ring grain refractive type Fresnel lens (7) on window (35), the ring grain refractive type Fresnel lens (7) it is correspondingly arranged on infrared transmitting tube (333) and the infrared receiving tube (334) of the distance measuring sensor function module (32).
18. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 17, feature exist In:The material of the ring grain refractive type Fresnel lens (7) uses IR PMMA or the IR PC of saturating infrared band, transmission band For 700~1050nm, 80% or more projection ratio.
19. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1, feature exist In:The flash lamp transparent surface (34) is CD ring grains, and prism film (8) is provided between the CD ring grains and the flash lamp (33), The prism film (8) is arranged in a manner of rotating display along radial direction by the microprism of several V-shaped.
20. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1, feature exist In:The flash lamp transparent surface (34) is CD ring grains, and microprism film is provided between the CD ring grains and the flash lamp (33) (9), the microprism film (9) is made of several miniature micro-prism array.
21. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1, feature exist In:The shape of described device ontology (31) is ellipse, and the flash lamp transparent surface (34) and transmitting receive the shape of window (35) Shape is respectively ellipse, hexagon, quincunx or square.
22. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1, feature exist In:The shape of described device ontology (31) is circle, and the flash lamp transparent surface (34) and transmitting receive the shape of window (35) Respectively ellipse, circle, hexagon, quincunx or square.
23. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1, feature exist In:The shape of described device ontology (31) is hexagon, and the flash lamp transparent surface (34) and transmitting receive the shape of window (35) Shape is respectively round, hexagon or quincunx.
24. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1, feature exist In:The shape of described device ontology (31) is quincunx, the shape of the flash lamp transparent surface (34) and transmitting reception window (35) Shape is respectively round, hexagon or quincunx.
25. a kind of flash lamp illumination module with short distance ligh-ranging function according to claim 1, feature exist In:The shape of described device ontology (31) is square, and the flash lamp transparent surface (34) and transmitting receive the shape of window (35) Shape is respectively ellipse, circle, hexagon, quincunx or square.
26. a kind of photographic device, it is characterised in that:It is described a kind of with short distance flash ranging including any one of claim 1~25 Flash lamp illumination module away from function.
CN201510718260.7A 2015-10-27 2015-10-27 A kind of flash lamp illumination module and photographic device with short distance ligh-ranging function CN105306798B (en)

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CN205792902U (en) * 2016-05-25 2016-12-07 中兴通讯股份有限公司 Camera head and there is its mobile terminal device
CN106736870A (en) * 2016-12-29 2017-05-31 吴中区穹窿山德毅新材料技术研究所 A kind of High Speed NC Machine Tools
CN107682510A (en) * 2017-11-17 2018-02-09 玉建富 A kind of Multifunctional cell phone outer case

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WO2013161250A1 (en) * 2012-04-26 2013-10-31 パナソニック株式会社 Strobe device and photography device provided with same
CN104243812A (en) * 2013-06-24 2014-12-24 佳能株式会社 Camera system, imaging apparatus, lighting device, and control method
CN104678682A (en) * 2013-11-29 2015-06-03 海洋王(东莞)照明科技有限公司 Lens assembly, light supplementing assembly and a camera with light supplementing assembly

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CN1519639A (en) * 2003-02-04 2004-08-11 奥林巴斯株式会社 Camera
WO2013161250A1 (en) * 2012-04-26 2013-10-31 パナソニック株式会社 Strobe device and photography device provided with same
CN104243812A (en) * 2013-06-24 2014-12-24 佳能株式会社 Camera system, imaging apparatus, lighting device, and control method
CN104678682A (en) * 2013-11-29 2015-06-03 海洋王(东莞)照明科技有限公司 Lens assembly, light supplementing assembly and a camera with light supplementing assembly

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