Patent ID: 8531647

Claim:
An exposure apparatus for a photosensitive film, comprising: light-emitting diodes for generating rays to expose a photosensitive film, wherein each of the light-emitting diodes includes a light emitting chip; a light shielding film positioned between the light-emitting diodes to prevent noise, wherein the light shielding film is made of a light absorptive material; a stage for receiving a substrate having the photosensitive film thereon; and a parallelizer positioned between the light-emitting diodes and the stage, wherein the parallelizer redirects the rays from the light-emitting diodes into parallel rays, wherein the light shielding film coats outer portions of light-emitting surfaces of the light-emitting diodes and a heat-radiating circuit board between the light-emitting diodes, or outer portions of light-emitting surfaces of the light-emitting diodes, wherein each of light-emitting surfaces of the light-emitting diodes has a spherical convex surface and the light shielding film coats part of the spherical convex surface of the light-emitting diode, and wherein a height of the light shielding film opposite to side surfaces of the light emitting chip is higher than the light emitting chip.