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  Digital Catalogue for Technology and Products Development

   Technology and Product Development

    Basic Information

Category: Product(Hardware/Material/Software)
Details of Inventor(s):
Inventor Institution/Organization/Company Department Designation
DR. DALIP SINGH MEHTA Indian Institute of Technology, Delhi DEPARTMENT OF PHYSICS Professor
Technical Application Area: Energy/Power
If 'Other', please specify:
Please give more details of new technical application area:
Indian Institute of Technology (IIT) Delhi
Affiliated Ministry: Institution Funding (Self Supported)
Type of technology development: Indigenous
Does the technology help in replacing any import items currently
procured from outside India?
Does the technology have export potential? Yes
Category of Technology developed: Immediate Deployment
Stage of Development: Prototype Level
Please describe in detail including the TRL Level:


Applications: A multipurpose sunlight harvesting non-mechanical tracking solar concentrator is developed, which is based on large Fresnel lens concentrating sunlight throughout the day and for all seasons of the year and mirror system redirecting sunlight. In this concentrator a secondary optics is used for separating visible and near infrared portion of the sunlight. The visible portion of the sunlight is concentrated onto a solar cell efficiently throughout the day for converting it into electricity and charging the battery or provides power for daily use. Key features: 1. There is innovative mounting of Fresnel lenses for concentrating sun light throughout the day. 2. A secondary optics for separating Visible and NIR portion of the sunlight is used. 3. No mechanical tracking is required for concentrating sun light. 4. A multipurpose sunlight harvesting system including solar stove/chulha, room lighting, water heating and battery charging. 5.Efficiency could be achieved more than 40 percent.
Advantages: Day light saving, direct sun light inside the room for best quality light and health benefits. Thermoelectric conversion/photovoltaic conversion for battery charging and storage. Cost effective and highly efficient in harvesting solar energy. The entire system is low cost and compact in size The system is scalable and is maintenance free.

    Technology Inputs:

Imported Equipment/Spare Parts:
Equipment/Spare Parts Year ITC-HS Code
Indigenous Equipment/Spare Parts:
Equipment/Spare Parts Year ITC-HS Code
Imported Raw Materials:
Raw Materials Year ITC-HS Code
Indigenous Raw Materials:
Raw Materials Year ITC-HS Code
Existing R&D Facilities used:
Facilities Year ITC-HS Code

    R&D Investment:

R&D investment (Rs. in Lakhs):                    
Indian Source (Rs.) Foreign Source (Rs.) Year
0 0 NA

   Patents & Publications:

Filed Patents (No.) Granted Patents (No.) Year
1 0 NA
Submitted (No.) Published (No.) Year
0 0 NA

    Commercialization Potential:

Who are the Potential Licensees?
What commercially available products address
the same problem?
Company Product Problem Addressed
Would you like to develop this invention further with
corporate research support?
Would you be interested in participating in cluster based
programs for commercialization research or business
planning for your invention?
      Submitted by: Anil Wali Date of Submission: 5-8-2020

I-Mitra(आई-मित्र) Welcomes You..
It has always been the basic tenet of the Government of India, in generously funding R&D efforts at academic institutions over the years, that facilities established through such support be made available to those needing them and qualified to make use of them for their own research work

However, this was never easy or straightforward for, among other reasons, there was no ready source of information of what facility was available and where. Thanks to the Web, it is much easier today to have a national and regional “inventory of resources”, so as to match users with the resources they need, and to do all this in an efficient and transparent manner.

This can lead to a leap in R&D productivity and greatly enhance the effectiveness of public investment. This is the motivation behind I-STEM.
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