A research of samrtphone led flashlight

A research of samrtphone led flashlight

After several years of iterative evolution, camera has become the core function of the smart phone. In order to improve the quality of images, mobile phone manufacturers try to upgrade the camera sensor and to optimize software algorithms, today let’s talk about the flashlight of the cell phone, which is always forgotten by you.

Xenon lamp - Nokia808 / Lumia1020

Nokia has always been radical in the camera configuration, when the mainstream mobile phone camera still stays at 8 million pixels, Nokia launched Nokia808 which is up to 41 million pixels. Unfortunately, Symbian system and weak hardware can’t support, Nokia808 experience is not so friendly, and ultimately fade out our vision. Two years later, Nokia came back to release Lumia1020, the same 41 million pixel!

Behind the Lumia1020, the xenon flash has been extended. Xenon lights have accurate spectral color,the color is so close to the sunlight, color reproduction ability is also fabulous. As the xenon lamp can send a very short pulse ray, it helps to freeze the movement of the screen, 3 meters high flash output can provides excellent lighting.

Although the xenon lamp can provide a higher brightness than the LED fill light, more accurate color temperature, but there are some limitations also. For example, xenon lamp requires a certain amount of time to refill, so it can’t not work continiously, it will be such embarrassment when we need to capture constantly. Besides, the most important thing is that xenon lamp is so big, and it can’t go well with the mainstream concept- thin&thinner.

True Toneflash - iPhone5s

Today, even the 200 dollar phones is also mad with bi-color temperature flashlight, and this configuration can be traced back to the iPhone5s. Because most of the LED lights are made of white light + phosphor powder, so spectral range is limited, blue too high, red too low. Via adding hot and cool LED, to improve the lack of brightness and color temperature range is too narrow, to make the photo more real and natural.

Of course, the bi-color temprature flashlight is not so simple as just adding two LEDs. When you press the shutter, iPhone5s first light up is to detect the color temperature, then to quickly adjust the LED light color; the second time can emit the appropriate color, that will give you the more natural photograph.

Tri- band LED flash light - Lumia950 / 950XL

Lumia950 / 950XL add more hues of the flash light, to balance the surrounding environment brightness. Although Lumia950XL rear camera using the classic OREO style, but it uses tri-color temperature CCT flash to instead of xenon flash.

Tri-band LED flash light can save the body thickness as much as possible, making the convex “Oreo” structure becomes smaller, while providing much closer to the natural light than the bi-color temprature flash light, therefore the Lumia950XL image quality has improved.

4-LED TrueTone - iPhone7

Apple's latest release of the iPhone7 series, in addition to the great improvment of camera, but also a change from the iPhone5s bi-color temprature flashlight, essembled with 4-LEDTrueTone flashlight, the number of LED improve from the former 2 doubled to 4.

iPhone7 can double the brightness compared with the iPhone6S with the 4-LED, and adjust according to the surroundings The whole sample looks sharper, brighter and a better depth of field.

10-LED round flashlight - PRO6 / 6s

If you wanna know who is good at the flashlight, they must mention Meizu. PRO6 / 6s even using 10 cold and warm LED lights arranged in alternating design, and that is unprecedented. This ring flash design makes the product more beautiful, but also makes the photos more uniform when shooting.

Front soft flashlight - vivoX9 / X9Plus

After these changes of the rear flashlight, the following will bring the case of pre-soft flashlight. Selfie has always been the favorite of girls, but unfortunately when the night is dark, the light can not meet the selfie shoot, even if there are already  installed the front flashlight, but the glare of the light will always makes us unconfortable. So vivo stood out and give the procept of moonlight front flashlight.

                                                                                                                                                  Moonlight soft light can simulate the studio lights, make the full use of light, dimming, scattering, diffraction and other skills, to make the selfie shooter to shoot a clear and soft facial features, modified skin flaws,The VivoX9 / X9Plus upgrade to the second generation of soft light technology, color temperature of 4800K, and color rendering index up to 94.

to sum up

All in all, if you didn’t get a opportunity to try that geek stuff, there is another choice to you

That’s selfie flash light for all phones, go and enjoy the soft moonlight spray on your face!