首頁 ﹥ FAQs > FAQ - Directivity White Balance Filters > ☉ DWB(Directivity White Balance) Filter Why & How
DWB (Directivity White
Balance ) Filter for smartphone - Why & How It
Works?
介紹與產品由來
2014年最先進單眼相機色彩校正專利技術移植到手機攝影使用!可以在Apple的手機/平板電腦最新iOS8系統,利用第三方最新攝相APP以手動白平衡設定,一次性就可以拍出比絕多數單眼攝相機預設自動白平衡色彩更精凖的相片或影片。
使用實體光學濾鏡避免手機攝影的經常性白平衡計算失誤而產生的相片色偏現象。主鏡隱藏筒體內,再加上隱藏式鏡杯導光體與主鏡指向式導光柱的導光作用,可獲得攝影現場最精準的色溫平均值來設定手機色彩系統以正確還原現場色彩。
毋須使用灰卡拍RAW去進行專業業軟體後製調整,就可以在iPhone/iPad上直接拍出色彩近乎完美的相片,立即分享色彩絕佳的生活點滴。後期藝術創造省時又容易。相片色彩還原精準度最高。
創新光學色彩專利設計,PCT
在收到專利發明申請第46天就核準認可全部申請內容項目。2014 Photokina
首展在世界各國眾多專業攝影師和愛好者現場以單眼相機拍攝檢測色彩正確性而得到一致性的熱情認同與喜愛。
RAYNAULD 雷諾
DCC或DWB專利濾光鏡對場景進行"指向性局部取光",經由實體中性濾光鏡,再予以均勻化而取得最精準符合現場的平均色溫值,用以校正手機相機的以灰色系統為主的色彩,故能譲相機一次性拍出最精準的真實色彩。
Functional Characteristics:
1 Collecting the scene light in directivity
The camera lens of the phones usually has a design which
allows it to collect light with an 180° field of view that leads to
read the wrong color temperature value of the pictured scene. The
patented design of RAYNAULD DWS Filter uses an optical filter which
has a light-guiding and cup-shaped structure concealed inside a
barrel body. By this way, the filter can collect the light
partially and selectively to avoid non-selective light absorption
from all
directions.
2
Professional entity optical filter
DWB Filter uses a professional entity optical filter with
light-guiding lens cup to take the rays of light captured in the
restricted field of view and turns them into a compensation value
for the camera’s grey system. It accurately indicates what is the
actual white color average value of the scene in front of the
camera. Thus, it can avoid the possibilities of miscalculations of
the camera’s automatic white balance (AWB)
totally.
3
Homogenizes the rays of light
The
light-guiding wall of the filter cup and the light-guiding posts on
the filter’s surface make the collected rays of light homogenized
in the center of the filter. In this way, it provides the color
temperature meter with the most accurate the color temperature
average value.
center of Filter through the filter, encircled wall and posts.
4
Conform to the color temperature average value of the
scene
The DWS
filter directs the light and collects it partially. Thanks to the
unique light-guiding filter lens cup, the light-guiding posts and
other physical methods, the filter provides the color temperature
system of the camera with an average color temperature value which
is the most well-adjusted to the scene you are shooting. In this
way, your pictures and videos can have true-to-the-original
colors.
5 Camera phone grey color system
The camera phone grey color
system is the same as the DSLR camera. The aim of the DWB optical
light filter is to carry out an accurate compensating correction of
the SLR camera grey system. Using the same principle of physical
optics, the filter can correct the colors of photos and videos made
by camera phones.
6 Real
colors
Each picture
and video frame made with a digital camera uses a single color
temperature value and a single color tone to define the white and
all other colors in the scene.
Only if the scene
has an accurate color temperature value and an accurate color tone,
it is possible to make real color pictures correctly! Make pictures
authentic to the human eye vision and avoid the miscalculations of
the camera’s automatic white balance
(AWB).
You don’t need gray card to shoot RAW and edit the photo
with special software later; you can make almost perfect colored
photos directly on your smart phone and right there enjoy the
colorful moments of life. It makes the modern art creation
processes time-saving and easy; keeps the the colors of the photo
close to the original at the maximum extent. Create original work
with perfect colors in one shot.
* When the object
is too close to the camera lens, the automatic white balance (AWB)
system of the camera cannot find a referent for the white color or
other colors close to white (for example: a bright spot).
Therefore, it can easily make a miscalculation in the white balance
compensation value, as shown in the following example with the
yellowish jeans:

* In the next
photo scene, the strong light source on the ceiling shines directly
into the camera lens and in this way it gives the photosensitive
parts incorrect color temperature. If the average color temperature
does not correspond to the actual colors of the scene, the
automatic white balance (AWB) of the camera naturally produces
photos in wrong colors, as shown in the following
example:
** Color temperature exam photo examples (RAW with grey card) using the
RAYNAULD™ Camera Phone DCC or DWB Filters.
|
Camera Phone AWB |
RAYNAULD™ Directivity White Balance Filter |
Operating Principles |
Logical calculus by micro computer chip through the photoimage captured through the lens.。 |
Using the physical optics filter by taking the camera as a color temperature meter to set the white balance value. |
Actual Filter |
No |
Yes! A real filter with patented optical structure |
Light Reading Range Limitation |
Weak |
It limits the range from which light can be collected |
Logical calculations |
Unstable |
Doesn’t use logical operations and doesn’t make operational errors |
Color Temperature Accuracy |
Might be high accurate or serious inaccurate |
High accurate color temperature average value against the photo scene |
Usage Convenience |
Excellent |
Need to use the DWB Filter to do White Balance Lock against the scene before the shooting |
Power Consumption |
Continue to consume the power ever since the camera is turned on. |
The microchip AWB calculation is turned off upon the White Balance lock is set. |
Photo Effects |
Color accuracy is hard to expected or reproduced with after works. |
Color Accuracy is as good as or even better than the professional way to shoot with grey card and using Lightroom to restore the real color. |
Video Color Effects |
Serious color casts happens when switching the camera direction. |
Accurate and stable color when switching the camera direction under the same lighting. |
● GLOBAL PATENTS & PATENT PENDING ● PCT/CN2014/000209
● EPC
NO. EP14786440.9
● CHINA UTITLY PATENT NO. ZL 2014 2
0104131.X
● TAIWAN UTILITY
PATENT NO.: M481554 ● JAPAN UTILITY PATENT NO.
3192763