Phillips PLN 2032 Twin-eye Laser Sensor Overview
Twin-eye laser sensor is a new technology provided by Phillips. This sensor features a VCSEL as a laser emitter, a DSP that has a 8MHz SPI connection and all of them are integrated into the circuit of the sensor. This sensor works by the principle of Doppler effect. Razer Naga Epic Chroma is one of few mice that contains twin-eye laser sensor. This is Mashhud Hasan from frenzytitans360 and today I'm going to talk about this sensor. I'll also have some discussion about the mouse but my main focus will be on the twin-eye sensor.
Twin-eye laser sensor contains VCSEL(Virtual Cavity Surface Emitting Laser) which is a laser emitter to illuminate the surface where the sensor of the mouse will track. It is a laser diode semiconductor that emits laser ray by perpendicular position. It can also emit laser from the edging position. An issue of optical sensor is, in most of the case they emit optical rays that can't illuminate every types of surfaces. In fact in shiny surfaces, they cause the stuttering problem of the cursor. But when it comes to twin-eye sensor, it has a laser emitter that can illuminate any surfaces, from opaque to bright. That's why this sensor can literally track on any kinds of surface. VCSEL is the reason of this sensor's high-end surface calibration.
This sensor features DSP (Digital Signal Processor) to empower it's Micro Controlling Unit. SPI (Serial Peripheral Interface) is a communication between two peripheral chips (data processor as a Master and data emitter as a slave). twin-eye sensor delivers 4-way SPI interface that has a 8MHz of clock speed for motion sensing, processing the physical movement of the sensor, converting into cursor movement according to DPI and inputting to the computer.
I've mentioned about the Doppler effect of the sensor before and now I'm going to break it down. Laser emitter and the movement of the mouse is directly related to this matter. The laser emitter emits the laser ray at a specific frequency and when the mouse gets moved to the surface that's getting illuminated by the laser, the wavelength of the reflected laser ray gets increased. If this function doesn't get implemented perfectly, then it might cause in-accurate movement and stuttering.
Now let's talk about the performance of the twin-eye sensor. To find this out, we have to look it in Razer Naga Epic Chroma's performance and it's side of view. It's actually a 3D motion sensor that has a 8,200 DPI, has a tracking speed of 6m/s and a gravitational acceleration of 50G. Well, the acceleration is more than usual and it may cause in-accuracy at fast movements. It's tracking speed is high enough. That's why it's completely prevented from getting spin-out at horizontal flicks and won't cause any deceleration at snappy movements. Since it's a laser sensor, so somewhere near of 1-to-1 accuracy is not expected and it might cause some pixel skipping also but these issues aren't significant enough to affect. It has a low desired voltage and long-run battery life. Most importantly, this sensor can track on any surfaces without any noticeable jitter.
So overall, this is a highly precised laser oriented tracking device that has the capability of higher tracking speed with low-power consumption . It is good at adapting with any surfaces due to having high-end surface calibration but not so good at aiming. However, it still has high speed serial communication to process and determine the cursor movement and the technology is based on Doppler effect that lets us know how the wavelength increases after the reflection.
Twin-eye laser sensor contains VCSEL(Virtual Cavity Surface Emitting Laser) which is a laser emitter to illuminate the surface where the sensor of the mouse will track. It is a laser diode semiconductor that emits laser ray by perpendicular position. It can also emit laser from the edging position. An issue of optical sensor is, in most of the case they emit optical rays that can't illuminate every types of surfaces. In fact in shiny surfaces, they cause the stuttering problem of the cursor. But when it comes to twin-eye sensor, it has a laser emitter that can illuminate any surfaces, from opaque to bright. That's why this sensor can literally track on any kinds of surface. VCSEL is the reason of this sensor's high-end surface calibration.
This sensor features DSP (Digital Signal Processor) to empower it's Micro Controlling Unit. SPI (Serial Peripheral Interface) is a communication between two peripheral chips (data processor as a Master and data emitter as a slave). twin-eye sensor delivers 4-way SPI interface that has a 8MHz of clock speed for motion sensing, processing the physical movement of the sensor, converting into cursor movement according to DPI and inputting to the computer.
I've mentioned about the Doppler effect of the sensor before and now I'm going to break it down. Laser emitter and the movement of the mouse is directly related to this matter. The laser emitter emits the laser ray at a specific frequency and when the mouse gets moved to the surface that's getting illuminated by the laser, the wavelength of the reflected laser ray gets increased. If this function doesn't get implemented perfectly, then it might cause in-accurate movement and stuttering.
Now let's talk about the performance of the twin-eye sensor. To find this out, we have to look it in Razer Naga Epic Chroma's performance and it's side of view. It's actually a 3D motion sensor that has a 8,200 DPI, has a tracking speed of 6m/s and a gravitational acceleration of 50G. Well, the acceleration is more than usual and it may cause in-accuracy at fast movements. It's tracking speed is high enough. That's why it's completely prevented from getting spin-out at horizontal flicks and won't cause any deceleration at snappy movements. Since it's a laser sensor, so somewhere near of 1-to-1 accuracy is not expected and it might cause some pixel skipping also but these issues aren't significant enough to affect. It has a low desired voltage and long-run battery life. Most importantly, this sensor can track on any surfaces without any noticeable jitter.
So overall, this is a highly precised laser oriented tracking device that has the capability of higher tracking speed with low-power consumption . It is good at adapting with any surfaces due to having high-end surface calibration but not so good at aiming. However, it still has high speed serial communication to process and determine the cursor movement and the technology is based on Doppler effect that lets us know how the wavelength increases after the reflection.
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