Abstract The invention discloses a protective light shield to reduce the harmful effects of resin-curing lights used in dentistry. This is a shield made principally of a single sheet of filtering plastic, shaped in a convenient paddle configuration. The dimension of the filter-paddle is sufficient to block all direct and reflected light from the tooth of the patient that would possibly be seen by any personnel in the operatory. A portion of the paddle is provided with a magnifier which may be employed by the physician for closer inspection of the tooth being operated on. Additionally, a relatively thin intensity-filtering material is applied to the back of the light paddle so that the intensity of the filtered light is reduced for the increased comfort and protection of the physician.
A hand-held light shield device for use in dentistry, comprising: a. a main paddle element which has optical properties necessary to filter out physically harmful light, b. an intensity filter affixed to one side of said main paddle element, c. a magnifying element on said main paddle portion, and d. a light blue colored strip affixed to the end of said main panel portion.
Claim 2
Dependent Claim
64 words
A hand-held light shield device for use in dentistry, comprising: a. a main paddle element which has optical properties necessary to filter out physically harmful light, b. an intensity filter affixed to one side of said main paddle element, c. a magnifying element on said main paddle portion, and d. a light blue colored strip affixed to the end of said main panel portion.
Claim 3
Dependent Claim
23 words
The light filter described in claim 1 further including a narrowed portion of the main paddle element suitable for use as a handle.
Claim 4
Dependent Claim
18 words
The hand-held light filter, as described in claim 2, wherein the main paddle element is approximately 1/8-inch thick.
Claim 5
Dependent Claim
16 words
The light filter described in claim 3 wherein the main paddle element is made of plastic.
Claim 6
Dependent Claim
19 words
The hand-held light filter described in claim 4 wherein said intensity filter is co-extensive with said main paddle portion.
Claim 7
Dependent Claim
29 words
The hand-held light shield device as described in claim 5 wherein the main paddle portion filters out a high percentage of ultraviolet light rays in the 400-525 nanometer range.
Claim 8
Dependent Claim
29 words
The light filter, as described in claim 6, further described in that the overall dimension of said light filter is no greater than 6"×10" and no less than 4"×8".