Lens R&D - focus on innovation BiSon64 - fine sun sensor - LEO, small satellites, ITAR free BiSon64-B - fine sun sensor with baffle - LEO, small satellites, ITAR free, reduced albedo sensitivity BiSon74-ET-RH - fine sun sensor - GEO, MEO, ITAR free, extended temperature BiSon6 - solar tracker - concentrated photovoltaics CPV


Lens Research and Development
is specialized in high reliability sunsensors for space and terrestrial applications
that can be cost effectively produced in larger quantities.

  • Recent Posts

    • BiSon64-ET and BiSon64-ET-B are comming

      Having successfully completed the contract negotiations with ESA, Lens R&D is sure to be able to continue with the development and qualification of the BiSon64-ET and BiSon64-ET-B

      The foto presented provides an impression of the BiSon64-ET-B as it will be completed and qualified.

      The underlying GSTP program is quite exciting as it also entails a full qualification according to ECSS standards as well as upgrading the quality control system at Lens R&D to be in line with ECSS standards.

      The latter means that we will officially enter into the realm of high reliability component suppliers when this program is successfully finished as one of the (in not the) smallest high reliability component suppliers ever qualified by ESA.

      Although this is a challenge still ahead of us, we at Lens R&D are sure we will succeed based on the compact but highly focussed and capable team, and the help from our well established supply chain and expert help provided by ESA staff.

      As a cherry on the cake, it has been agreed to supply 20 flight and 2 flight spare units to the ESA PROBA-3 formation flying mission.  http://www.esa.int/Our_Activities/Space_Engineering_Technology/Proba_Missions/About_Proba-3

      this program will therefore automatically lead to two ECSS qualified TRL9 products.

      The BiSon64-ET and BiSon64-ET-B products will have a very wide qualification temperature range extending from -125°C to +125°C which will allow to mount them on extendable solar panels directly.

      Furthermore the environmental envelop qualification will entail 40g sine, 39g random (at 1.5g2/Hz) and 3000g pyro shock, thus allowing to use the sensors on many missions without any further qualification testing.

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    • Reminder for the Sunsensor Challenge

      As it seems a lot of people have missed the invitation, another post of the sunsensor challenge at the AIAA/USU Small Satellite Conference in Utah.

      Looking forward to a lot of surprising submissions.

      Read More »
    • Half a degree accuracy, let’s see

      For several months now, Lens R&D has been busy building calibrating and analysing a statistically significant number of sunsensors.

      Based on the results obtained so far, we concluded that all sensors have a common residual error profile. Because this error profile is determining the majority of the errors over the field of view, we decided to investigate the possibility to model this error so that it can be compensated. Based on a thorough analysis of the optical properties of our sensors we concluded that the error profile is related to some of the manufacturing details of our sensors which are expected to be highly repeatable.

      This is why we started modelling some of the unwanted optical properties of the components used and Alexander Los came up with a computer simulation that will allow to correct for some of the inherent (but constant) deficiencies of the materials used in our sensors.

      Read More »