"reflect it onto" is correct and can be used in written English.
It means to project or show an image or idea onto something else. It is typically used in cases where something is mirrored or mirrored upon. Example: She held up the mirror and carefully reflected the sunlight onto the wall, creating a beautiful pattern. Example: The movie reflected societal issues onto the characters, making the audience think about their own lives. Example: The art installation required visitors to stand in a specific spot to reflect light onto the sculpture.
Shahbandar set up the projector in an adjoining kitchen and projected the image onto a mirror in the garden, which reflected it onto the rear of the screen.
One architecture [3], for example, replaces the conventional CCD/CMOS sensor in a digital camera with a digital micromirror device (DMD), which modulates the incoming light and reflects it onto a single photodiode for measurement.
The seating decks and partial roof, both trap and amplify exceptional amounts of noise and reflect it back onto the field.
Many are better for cosmetic rather than soil protection (such as gravel, recycled glass pellets, paving slabs etc) as these can actually retain a lot of heat or reflect it back onto plants.
The Isfahbad-light principle accesses the supernal lights, rules over the active imagination, and reflects onto it the lights it receives.
In Washington D.C., the light looks like a firework exploding over a body of water, reflecting onto it just like the city lights on the ground below, which also totaled to a 60 minute exposure.
The better a movie is, the more thoughtfully and significantly it reflects back onto the circumstances of its production.
Kylie and Baker had started drawing stage concepts of how the tour would look like and wanted it to reflect onto the album's personal meaning.
The buttercup is so glossy that if held at the right angle, it reflects sunlight onto human skin, like a mirror.
Using an early Xerox machine required placing an original under a glass pane, reflecting light off it onto a statically charged photosensitive plate, using the charged plate to draw toner from a tray, transferring the toned image to plain paper, and then melting the toner into the paper in a miniature electric oven.
