AppleInsider Staff
Apple has reportedly expressed interest in 3D camera sensors produced by existing supplier Sony, hardware that utilizes accurate time of flight technology instead of the structured light solution currently deployed in iPhone and iPad's TrueDepth camera system.
Satoshi Yoshihara, general manager in charge of sensors at Sony, said the company plans to start production of its 3D chips next summer to meet demand from "several" smartphone makers.
Yoshihara failed to provide manufacturing figures and did not name potential customers, though he did note Sony's 3D chip business is operating profitably, reports Bloomberg Quint. The publication claims Apple is interested in adopting the technology, but does not make clear whether the information came from Sony or an unnamed source.
Apple's existing 3D hardware, TrueDepth, uses a single vertical-cavity surface-emitting laser (VCSEL) to project structured light — a grid of dots — onto a subject. By measuring deviations and distortions in the grid, the system is able to generate a 3D maps that is in this case used for biometric authentication.
Sony's technology, on the other hand, is a time of flight (TOF) system that creates depth maps by measuring the time it takes pulses of light to travel to and from a target surface. According to Yoshihara, TOF technology is more accurate than structured light and can operate at longer distances.
Rumors of Apple's interest in TOF solutions is well documented, though today's report is the first to attach Sony to potential production plans. In June 2017, reports indicated Apple was evaluating TOF for a rear-facing camera that would assist in augmented reality applications and faster, more accurate autofocus operation.
Whether TOF will make it into a shipping Apple product is unclear. Noted Apple analyst Ming-Chi Kuo in September said the company is unlikely to integrate the technology in a next-generation iPhone model. Instead, Apple is expected to continue to rely on the dual-camera system first deployed with iPhone 7.
"We believe that iPhone's dual-camera can simulate and offer enough distance/depth information necessary for photo-taking; it is therefore unnecessary for the 2H19 new iPhone models to be equipped with a rear-side ToF," Kuo says.
Along with Sony, which supplies camera modules for iPhone and iPad, Infineon, Panasonic and STMicroelectronics are also developing 3D chips based on TOF technology.
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William Gallagher
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13 Comments
If
Apple is genuinely interested in this technology (and there’s no reason why they wouldn’t be, but we are only getting one side of the story at present), it’s unlikely to be in the 2019 iPhones because the design on those was probably decided and locked down a while back (Apple works way ahead, but they do have some flexibility for big breakthroughs).
It would be a candidate for the 2020 iPhones, again if the story is true, because the existing VCSEL technology is more than good enough for the purposes 95 percent of users put it to, i.e. close-range portraits and selfies.
How about going a step further and adapting this for self-driving car environment sensing?
Something doesn’t seem right here - the speed of light is roughly 3e8 m/2, or 3e10 cm/sec. This means that to have a resolution of 0.5 cm, a sensor would need to be able to have a temporal resolution of at least 1 cm/3e10 cm/s = 3e-11 seconds, or on the order of 30GHz. In practice it would be higher. That means no only would the sensor need to register that fast as well as be able to sample that fast.
I've always maintained that "the must-have" apps are largely tied to the input capability (typically sensors) available to developers -- GPS, camera (and features), Bluetooth, NFC, etc.
We've been on a "must-have app" plateau for a few years. When 3D sensing is made available to developers, the next few "must have" apps will arrive.
Apple could certainly not go wrong partnering with Sony. Not directly related to 3D but about Sony. Having just returned from Disney with my new Sony Alpha A7 iii and taking hundreds of handheld night shots I am certainly a convert to Sony technology. I have never seen such amazing low light photographs, utterly staggering and no post-processing required. This after decades of using high-end Canon bodies and L lenses.