PROJECT
TEJAS D3
Engineering indoor sunlight
for the modern workforce.
PRECISION UVB / SENSOR FUSION / INDIA
INVESTOR NARRATIVE • SEPTEMBER 2026
THE PROBLEM
02
The ≈80% blind spot is real but context matters
A South Indian office cohort found deficiency in 75% of men and >83% of women.
≈80%
OFFICE COHORT
75% MEN
>83% WOMEN
THE FAILURE LOOP
01
PILL
Daily ingestion
02
ABSORPTION
Variable uptake
03
FATIGUE
Compliance drops
04
DEFICIT
The loop persists
We are treating a light deficiency with a pill.
Source: Chetty & Ravishankar (2018), n=2,477 office-going adults in Bengaluru; “≈80%” is a rounded cohort shorthand—not a national workforce estimate.
THE BIOLOGY
03
The body already owns the factory
Precisely dosed UVB triggers a native photochemical pathway - no ingestion required.
01
EMIT
Narrowband UVB
Target band: 290–315 nm
02
TARGET
7-dehydrocholesterol
A precursor already in skin
03
CONVERT
Previtamin D₃ → D₃
Thermal isomerization follows
100% NATIVE PATHWAY • ZERO INGESTION
Sources: Wacker & Holick, Dermato-Endocrinology (2013); CDC UV Radiation (2026). UVB is non-ionizing and can injure skin/eyes if exposure is not controlled.
MARKET PRECEDENT
04
FDA clearance proves category viability
Solius established a regulatory and commercial precedent for personalized UVB.
SOLIUS PRO
A wall-mounted OTC UVB panel,
not a clinical kiosk.
US$2,995
listed device price
TEJAS D3
Compress the validated category into a desktop-first enterprise wedge for India.
R&D
Years of photobiology
and device development
16 JAN 2026
FDA 510(k) K252960
Class II • SGZ
JUN 2026
US$23M Series A
announced
PRECEDENT ≠ TRANSFER
TEJAS D3 still requires independent optical, safety, clinical and CDSCO validation.
Sources: FDA 510(k) K252960 (decision 16 Jan 2026); Solius/GeekWire (Jun 2026). Company announcement reports US$23M; PitchBook reports US$27M.
THE WEDGE PRODUCT
05
The enterprise lamp makes precision UVB routine
Phase 1: a desktop device that fits the workflow instead of creating a clinic visit.
01
LED TASK RING
Everyday ergonomic light
02
UVB ARRAY
Recessed core engine
03
OPTICAL HOOD
Downward field; eyes excluded
04
DEPTH SENSORS
LiDAR / time-of-flight
B2B FIRST
Corporate HR subsidizes deployment at the employee’s desk.
Concept render and architecture are founder-provided design targets; no clinical, optical or regulatory validation is implied.
THE CORE ENGINE IP
06
The moat is a closed-loop safety controller
Sensor fusion turns exposure into a measured state machine—not an open-loop lamp.
01
APP SYNC
Fitzpatrick skin type
+ contraindication screen
02
SPATIAL LOCK
Millimeter distance
+ inverse-square correction
03
DYNAMIC DOSE
Example output:
03:14 exposure
04
ACTIVE FAILSAFE
Face / proximity event
→ shutoff ≤0.1 s target
UVB OFF
RE-VERIFY BEFORE RESTART
NON-IONIZING. NOT RISK-FREE.
Safety depends on optical confinement, dose limits, interlocks, human-factors testing and regulatory validation.
Source: CDC classifies UV as non-ionizing radiation. Timing and shutoff values shown are engineering targets, not verified product performance.
BUSINESS MODEL
07
Three revenue streams compound around one installed base
Hardware opens the account; software and service extend lifetime value.
INSTALLED
BASE
01 B2B HARDWARE
CAPEX
Bulk deployment into
Gurugram + Bengaluru tech parks
02 SAAS DASHBOARD
RECURRING
Aggregate compliance +
program operations—not medical claims
03 SERVICE LOOP
HIGH MARGIN
Replaceable optical module
after validated useful life
MODEL HYPOTHESIS
GO-TO-MARKET
08
Win the workplace, then expand
A staged path from optical validation to enterprise pilots and selective consumer launch.
NCR
PUNE
BENGALURU
A
OPTICS + FIRMWARE
Bench validation • dosimetry • interlocks
B
REGULATORY PATH
Classify intended use • engage CDSCO early
C
500-UNIT PILOTS
Top-tier IT parks • outcomes + workflow data
D
SELECTIVE D2C
Urban wellness segment—after safety proof
REGULATORY GATE
The exact CDSCO pathway depends on intended use and risk classification.
Source: CDSCO Medical Devices Rules, 2017. Map and launch sequence are illustrative; city placement is schematic.
PHASE 2 VISION
09
The lamp unlocks a licensable light platform
Validate the Safety Core once; adapt the optical interface to every indoor environment.
01
MIRROR
Private routine
02
LIGHT POD
Premium wellness
03
CEILING
Ambient infrastructure
LICENSE THE SAFETY CORE →
AI-generated concept renders; future form factors and licensing strategy are illustrative and depend on validation of the underlying safety platform.
PROJECT TEJAS D3
Let’s bring the sun indoors.
A precision-light platform for metabolic health-starting at the desk.
SEEKING • PILOT PARTNERS • REGULATORY ADVISORS • PRE SEED CAPITAL
PROJECT TEJAS D3 / CONFIDENTIAL CONCEPT