Dobbins JLUS IMP Public Draft Light Pollution Study | Page 221

(c) "Fixture": The assembly that holds the lamp and may include an assembly 1 2 housing, a mounting bracket or polo socket, lamp holder, ballast, a reflector or mirror and a 2 3 refractor or lens. 3 4 (d) "Freestanding Lighting": A light fixture which is not attached to a building. 4 5 (e) "Fully Shielded Fixture": Outdoor lighting fixture shielded or constructed so tha 5 6 no light is emitted above the horizontal plane, and light rays are only emitted by the installed 6 7 fixtures in such a manner that do not direct light or light trespass onto adjacent property, on any 7 8 other property within the line of sight (direct or reflected) of the light source, or to any member o 8 SECTION 6. The Board of Supervisors hereby declares that it would have 9 the public who may be traveling on adjacent roadways or rights-of-way. 9 adopted this ordinance and each section, subsection, sentence, clause, phrase, or portion 0 thereof irrespective of the fact that any one or more sections, subsections, clauses, phrases or 1 portions thereof be declared invalid or unconstitutional. If for any reason any portion of this “Holiday Lighting”: Seasonal displays of 60 days or less within one calendar year 2 ordinance is declared invalid or unconstitutional, then all other provisions hereof shall remain 3 using multiple low wattage bulbs (approximately 15 lumens or less) provided they do no 3 valid and enforceable. 4 constitute a fire hazard, create a nuisance, and are maintained in a safe condition. 4 1 (f) 0 1 “Glare”: Direct and unshielded light striking the eye to result in annoyance discomfort or reduced visual performance to a reasonable person under the circumstances. (g) 2 (h) “Lamp”: The generic term for an artificial light source installed in the socke 5 6 portion of the fixture, to be distinguished from the whole assembly. Commonly referred to as a 6 7 “bulb”. 7 5 8 (i) “Light Pollution”: Artificial light generated and emitted into the night sky. 8 9 (j) "Light Trespass": Light from any outdoor lighting onto neighboring property or 9 0 property that is within a direct line from the light source that interferes with viewing of night sky, 0 1 eliminates the ability to have darkness on the such property or shines on any area on these 1 2 properties or structures. Any determination of light trespass shall be made through a 2 3 quantitative measurement utilizing a standard yard stick (3 ft x 11/2 in.). The yard stick shall be 3 4 placed at the building setback line in the complainant’s yard. The yard stick shall be in contact 4 5 with the ground or may be raised to window level of the dwelling and in a vertical position. The 5 6 person taking the measurement shall then determine if a shadow is cast by the light source 6 7 The light source, yard stick, and shadow must be in alignment. Measurements shall not be 7 8 taken when there is a moon in the night sky. 8 Appendix A: White Paper – Communities Addressing Light Pollution that Affect Nighttime Military Training (k) "Night Sky": A clear sky, between dusk and dawn, with visible stars, despite necessary or desired illumination of private and public property. (l) "Partially Shielded Fixture": A fixture employing a top shield to reduce upward light, but otherwise does not shield the lamp from view. (m) "Pedestrian Lighting": Freestanding lighting fixtures not exceeding a height o thirty-six (36) inches from ground grade level. SECTION 7. This ordinance shall become effective thirty (30) days after its adoption. Signed DENNIS HANSBERGER, Chairman Board of Supervisors SIGNED AND CERTIFIED THAT A COPY OF THIS DOCUMENT HAS BEEN DELIVERED TO THE CHAIRMAN OF THE BOARD J. RENEÉ BASTIAN, Clerk of the Board of Supervisors of the County of San Bernardino Signed STATE OF CALIFORNIA COUNTY OF SAN BERNARDINO ) )ss. ) Page A- 153