Question

while researching a topic, a student has taken the following notes:

• digital light synthesis (dls) is a form of additive manufacturing that utilizes light to rapidly cure liquid resin into high - quality, 3d objects.
• step 1: ultraviolet (uv) light images are projected up into a pool of liquid resin, where the objects first layer takes shape.
• step 2: the partially cured resin object is raised, leaving a thin space (a \dead zone\) beneath it for oxygen and liquid resin to flow through.
• step 3: the uv light passes through the dead zone—maintaining the flow of resin—and partially cures additional layers of the object.
• step 4: when the resin object is complete, it is baked in an oven to complete the curing.

the student wants to describe how dls cures 3d objects. which choice most effectively uses relevant information from the notes to accomplish this goal?
a) dls cures 3d objects by passing through a \dead zone,\ adding layers to the object, then curing the object in an oven.
b) in dls, uv light is projected into layers of liquid resin until the resin solidifies and passes through a \dead zone,\ wherein the curing is completed.
c) in dls, uv light images are projected into a liquid resin pool to cure a 3d object layer by layer; once solidified, the object is baked in an oven.
d) dls is a form of additive manufacturing that creates a \dead zone\ in which uv light solidifies layer by layer before being baked in an oven, creating a high - quality 3d object.

Explanation:

Step1: Analyze Option A

Option A inaccurately states that UV light passes through the "dead zone" to add layers. The notes say UV light projects images first, then the dead - zone is created for resin flow and UV light passes through the dead - zone for additional curing.

Step2: Analyze Option B

Option B has a wrong sequence. The UV light projects images to form the first layer (not project into layers until solidification). Also, the curing is not completed in the dead - zone; the oven is used for final curing.

Step3: Analyze Option C

Option C correctly follows the steps: UV light images are projected into the liquid resin pool (Step 1) to cure layer by layer (Steps 2 and 3), and then the object is baked in an oven (Step 4).

Step4: Analyze Option D

Option D misrepresents DLS as creating a "dead zone" where UV light solidifies layer by layer. The dead - zone is for resin flow and additional curing, not the main solidification area.

Answer:

C. In DLS, UV light images are projected into a liquid resin pool to cure a 3D object layer by layer; once solidified, the object is baked in an oven.