STTL
The problem
- Sensor’s small pixel size (≤0.8µm) is needed in order to increase sensor resolution for the smartphone, but it has very low light sensitivity
- Bigger sensors with bigger pixels (3µm) cannot be used due to optics long total track length (TTL)
- In order to use such big sensors, the optics need to have short TTL to fit into the smartphone’s compact volume
- Conventional Short TTL utilizes a hybrid lens (plastic and glass) in order to squeeze the TTL but introduce higher sensitivity to tolerances and thus lower yield
- iPhysicist overcomes this problem with a novel patented optics technology named STTL which adds more optical power to limited volume and introduces lower sensitivity to tolerances
- STTL’s optics is made from plastic-only elements and achieves high yield
- Image processing is required for stitching
- Proof of concept already done. Demo produced. 9 months to mass production
- STTL lens – to reduce the camera’s height by 30-40%
- Replacing camera array of several field of views (FOV) which are using several lenses in smartphone with a single camera having several FOVs using only a single lens camera (for example x0.5, x1.0 and x2.0 into one camera)
- Ability to use large pixel sensors (1.5-3µm) and high-resolution sensors such as 108MPix bringing DSLR image quality to the smartphone’s camera
- Real optical zoom x2/x3, ultra-compact shape without moving parts
- Real optical zoom x10, compact form factor, non-periscope shape with moving parts
- Reduced cost. For example: 7P STTL solution with 80% yield compared to 7P/6P1G/8P conventional optics solutions with<40% yield. Estimated saving cost ~$1 for each camera
