4 ms·
Silicon is transparent above 1.1um this laser is at 1.5um, so perhaps the infrared cut filter that sits above the sensor was damaged. Perhaps Sony is using a ab
by milleramp 8y ago
Silicon is transparent above 1.1um this laser is at 1.5um, so perhaps the infrared cut filter that sits above the sensor was damaged. Perhaps Sony is using a absorptive IR filter and it was damaged by heat, if it was reflective filter i doubt it could be damaged.
- dllu 8y agoSome shortpass filters only block 700 nm to 1100 nm and are not rated for performance above 1100 nm, since the silicon sensor cannot "see" light above 1000 nm anyway (but may be damaged by sufficiently strong amounts of it). So, perhaps Sony was using an IR block filter that blocks near IR from 700 nm to 1000 nm but doesn't block 1550 nm perfectly.
- milleramp 8y agoYes this that is probably the case, no need to block beyond 1.1um for images, perhaps now they should extend it for safety. The laser must have passed through and damaged the metal interconnects on the backside of the sensor.
- deepnotderp 8y agoIt's probably thermal damage