Prismatic Axle Depth Analysis - Redness CD502S Keyboard Evaluation

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After the MX-axis patent expired, the cost of the mechanical keyboard came down, and modern people's pursuit of quality of life became higher and higher, causing the mechanical keyboard to fire a lot over the past two years. The traditional MX shaft has more and more derivative shafts. These shafts are optimized for some disadvantages of the MX shaft. Currently, the general classification is the optimization of the "optical axis" of the starting point. At the same time of stability, it achieved hot-swappable, axial replacement, and convenient maintenance. One type is Kay's BOX axis, or mechanical transmission, but the entire mechanical structure has been greatly optimized.

This evaluation is a variant of the optical axis, using the redness of the Prism Prism axis CD502S mechanical keyboard.

In the last part of the axis analysis, students who do not want to see the keyboard can skip

Out of the box

On the back there are instructions and main features

Not much to say about packaging, more is nonsense, we look at the picture

Accessories are convenient with only one promotional card

The appearance is relatively novel, surrounded by a border with a slope, the lower part of the extended out, can be used as a hand care, plus a 104 keyboard, more space, the desktop must be large enough.

Suspended design, road alloy positioning plate. It is surrounded by plastic material, with a metal layer, feel and visual sense is not bad, there is no feeling of cold metal, good and bad open personal preferences,

In the upper right corner, there is a LOGO for the prism axis.

The lower left corner is the LOGO of the IF design award. The prism axis is not the keyboard itself. The personal feeling should be the pressure feedback part of the axis body. There is no specific verification, no guesswork.

In the lower right corner is a transparent LOGO.

The keycap is ABS material, the main character is a double-injection process, and the combined function keys are printed.

This set of unsealed characters made me feel like a male model, but the overall material and feel is much better than that of the male model.

On the back there is a LOGO-shaped nameplate, five anti-slip stickers, two support feet, six drainage holes, and three-way alignment slots, which are more standardized.

The wire is gray braided wire, gold-plated USB, with cable management tape and USB protective cover.

axis

Let's briefly talk about it. The essence of "optical axis" is to replace traditional mechanical conduction through the optical path coupling technology. Prismatic axis is also applied this principle. The difference is that he does not use a simple cutting optical path. Through the more complex axis structure, what the official called "pressure sensing" is achieved.

This sensor is useful, for example, CSGO is only two steps to adjust the pace of speed, one is the normal running, one is holding down the SHIFT slow walk, if the prism axis "pressure sensing" technology can be applied The speed of running is decided by the intensity of the press, and the experience will be better. This is why students who like to play racing games like to use the handle or the steering wheel to play. When they turn the wheel, they don't want to use the keyboard, but they can control it freely. angle.

The specific principle of the official only used a compelling phrase "using the coupling of the control infrared light path to achieve strong and weak adjustment and control of the photoelectric model, non-physical contact conduction, low noise, fast response, strong reception, Lossless optical control engine and PCBA split architecture make it easier to maintain and replace after sales."

It looks a bit similar to the MX axis in general, but if you look at it yourself, you will find that each place is different from the MX axis.

The prism part that everyone sees is the main part of the trigger

The prism part that everyone sees is the main part of the trigger

U-shaped part is actually a prism

The base part has two lenses for light transmission

Structure on the PCB

After dismantling, observing, and analyzing (it took one afternoon and was misguided by T_T), the translation of adult speech is "the transmitter's light signal at the bottom of the PCB, and the light enters the 'receiver' of the shaft base. The shaft body is refracted by the 'base prism', refracted by the 'axis prism', passes through the 'signal feedback lens', and returns to the receiver."

The schematic diagram is the above one, but it is only a schematic diagram. The optical path inside the base prism is wrong, and this part is the key to the “pressure sense”. The center column moves to different positions, and the light reflected by the “base prism” is different. Plus, the pressure of the spring changes to achieve "pressure sensation."

Thanks to my junior high school physics teacher, high school physics teacher, university physics teacher, and all the teachers who made me forget the basic physics. T_T

The principle of the triggering of the prism is over, let's talk about the principle of sounding.

There are two types of prism axes: the linear axis. There is no problem with sounding on this circumference.

The other is the passage-like axis of the blue-like axis, which is my hand. The whole sounding principle is the same as that of the MX green shaft. The whole mechanical movement is also in the same form. What the same thing represents afterwards, you can With the similar MX axis of the hand and sound, while the axis of the MX green shaft has a sense of inconsistency, a long time, especially in the harsh environment of the hands of smokers, sound, feel change, and even voice loss and other issues Still exist.

The service life of the MX axis section axis is shorter than that of the linear axis. The main reason is the change of sound after wear. I think the prism axis also has this problem. How to reduce these problems is to look at the quality control. However, in my hands, the overall quality control is fairly good, and the consistency of the hand can also be achieved.

to sum up

The CD502S Prism Axis Keyboard is essentially an optical axis keyboard. Compared to other optical axis keyboards, it inherits the advantages of the optical axis keyboard. It has quick response and convenient shaft replacement. At the same time, it has made great progress. "Induction", applied to the game, has great practicality for FPS games and RAC games.

In terms of re-utterance and feel, because the utterance and trigger modes are performed separately, there are fewer considerations, so the overall feel and uniformity are much more stable than MX.

I feel that the prism axis may get fired. “Pressure sensing” is used in many scenes. It is not just a game. For example, the pressure sensing of the PS brush can be adjusted through the keyboard.