1(Of a surface or substance) changing physically or chemically when exposed to light.
- Microchips are made by shining light through a ‘mask’ to project a circuit pattern onto light-sensitive chemicals on the surface of a wafer of silicon.
- These are all processes that involve exposing light-sensitive paper, then processing the paper in chemicals.
- Images are exposed directly onto light-sensitive paper through a tiny lens the size of a pinprick.
1.1 Biology (Of a cell, organ, or tissue) able to detect the presence or intensity of light.
- However, prolonged gazing at bright sources of light such as the sun can result in a loss of visual acuity through photochemical damage to the light-sensitive receptor cells in the retina.
- Doctors in India have transplanted light-sensitive cells from the eyes of 14-19 week-old healthy aborted foetuses into the eyes of blind adults suffering from Retinitis Pigmentosa.
- Both these morphological changes reduce the angle through which the individual light-sensitive cells receive light.
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