Rayplicker Cobra

Integrate color into your digital workflow !

Rayplicker Cobra - Borea



Light weight and compact autocalibrated device


Multispectral analysis,
CIE L*a*b* / L*C*h


Compact / Modern / Light weight / Oled touch-screen


100% integrated,
objectivity & traceability


Sterilizable tips,
induction charging


Easy communication. Didactic experience with your patient

Digital at the service of aesthetics

An innovative design and ergonomics adapted to the new standards of dental practices. The Rayplicker Cobra offers a spectrophotometry shade-taking solution enriched with new functionalities allowing instantaneous transmission of color information into the patient folder of the Rayplicker vision software. Better accessibility in the mouth for better acquisition while maintaining reliability and reproducibility. Cobra integrates color as an integral part of the digital flow.

With Cobra shade taking is fully integrated into the digital workflow

Technical specifications:

Spectrophotometer: measuring range 400-700 nm
Screen: Oled touch screen 1,5”
CMOS sensor: 648 x 648 px
Resolution: 128 x 128 (RGB)
Processor: i.MX8MM Quad cores 1 Ghz
Battery: Lithium-Ion
Dimension of the measuring head in mm: L. 76 / Diameter : 25
Dimensions of the handpiece in mm: L. 200 x l. 42 x H. 35
Dimensions of the dock in mm: L. 80 x l. 75 x. H. 55
Weight of the handpiece: 169 g
Weight of the dock: 124 g
Output: Wifi 802.11 b/g/n
Supply: 5V 2Ah / Micro usb type B

Instantly view the analysis result on the screen 


Brochure Rayplicker Cobra - 12 pages (English) 4 MB

In pictures

spectrophotometer Cobra
Rayplicker Cobra


  • Rayplicker Cobra
  • Docking station
  • Wifi dongle
  • Charger
  • Calibration tips x6 (sterilization in autoclave)
  • Desinfection and sterilization procedures
  • Quickstart guide
  • Microfiber wipe
  • Free access to Rayplicker Vision and the Borea connect platform

Any question?


In order to take a shade, make sure that the following points are validated:

  • Your device must be light on and in video acquisition mode.
  • The Rayplicker Vision must be connected and synchronized to the Cobra.
  • The video stream must be in “activated” mode in the settings of your Cobra device from the Rayplicker Vision software
  • The current user selected from the Cobra (from the Cobra wifi settings) must be the correct user.

If, despite this, the problem persists, there may be a network security problem (port opening, firewall, etc.)

Here are network technical details (intended for network administrators):

Communication Cobra:

  • Protocols:
    • TCP (ports: 6050/6051)
    • UDP (ports: 6050/6051)

Stream Cobra:

  • Protocols (Note that the protocols below are used for RTP [Real-Time Protocol] and RTSP [Real-Time Streaming Protocol]):
    • TCP (port: 1234)
    • UDP (port: 1234)

Attention: Firewall exception must be set for Rayplicker Vision application otherwise Cobra streaming cannot be played

Upload/download to/from Cobra device:

  • Protocol: FTP (port: 21)

Spectrophotometers are used in many industries requiring precise colors. Whether we are talking about packaging, paints… this is the essential tool to ensure that the color produced consistently matches the color initially specified. Beyond precision, this clearly promotes waste reduction and saves time and money.

Spectrophotometers analyse the reflected wavelengths of visible polychromatic incident light. The reflected spectrum is measured at a large number of points, at small intervals, and it is compared to a database to deduce the color of the tooth. For an optical measurement, several million reference points are analysed on a tooth. These devices are currently the most precise and are not exposed to problems of aging of the light source.


Colorimeters and spectrophotometers are the two types of colorimetric measuring instruments used to capture, analyse, and communicate color. In the dental industry, it is needless to say that color accuracy (tooth shade) is important and it is clear that making a reliable colorimetric measurement is essential for the manufacture of a quality dental prosthesis.

However, there is confusion today among many users and healthcare professionals, arising from the lack of information provided by manufacturers. This is why we are going to answer your questions related to these two devices using two very distinct technologies: spectrophotometry and colorimetry.

  • Colorimeter

It is a trichromatic colorimetric measurement tool that provides an objective assessment of color characteristics from light passing through the primary filters of red, green and blue. It simulates the way the human eye perceives color.

How does a colorimeter work?

The tooth is illuminated at an angle of 45 ° by an internal light source.

The light passes through the trichromatic filters, which indicate the amount of red, green and blue light reflected by the tooth.

The filter’s measurements are quantified in RGB values, which simulate the sensitivity of human eyes to light.

  • Spectrophotometer

A spectrophotometer is a more complex colorimetric measuring instrument that takes into account light intensity as a parameter of color. It performs full-spectrum colorimetric measurement, as opposed to the trichromatic procedure of a colorimeter, and generates colorimetric data that is beyond observation by the human eye.

 How does a spectrophotometer work?

An internal light source (On the Rayplicker, this source is represented by the ring of LEDs at the end of the measuring head) emits under different wavelengths so as to represent the entire visible color spectrum.

Each Led representing a specific wavelength of the spectrum emits one after the other in order to diffuse the light on the tooth.

Under each emission wavelength, the sensor measures the light intensity and absorbance of the tooth being analysed.

These collected data are then analysed by a comparison algorithm which compares the information collected with the spectral signatures of the various previously recorded shade guides.

The spectrophotometer displays this information in digital form.