Abstract: An illuminating device comprises one or more luminescent devices (1). The luminescent device comprises a semiconductor light emitting element (10) emitting a excitation light having an peak within a wavelength range from 350 nm to 430 nm, and a luminescent part (20) comprising a sealing member (22) and a phosphor (21) absorbing the light from the semiconductor light emitting element (10) and emitting a light with different emission spectrum. For the luminescent device (1), an excitation light contribution degree ?E, an index quantitatively representing what extent of a visible component of the excitation light is involved in color mixing of a combined light of the luminescent device (1), is 0.005 or less, and a mean color rendering index Ra is 70 or more.

Abstract: An illuminating device comprising semiconductor light-emitting devices employing a semiconductor light-emitting element, wherein outputted light is stably combined, separation of light is inhibited, and color tone is variable. Control for operating the light-emitting devices is as simple as possible.

Abstract: An illuminating device has a solid light-emitting element module (10) and a phosphor module (20) joined to the solid light-emitting element module (10). The solid light-emitting element module (10) has a plurality of the solid light-emitting elements. The phosphor module (20) has a plurality of phosphor-containing parts (22) corresponding to the individual solid light-emitting elements (12). Thus, a light-emitting part is provided, which has more than one kind of luminescence sources having the solid light-emitting element (12) and the phosphor-containing part (22). An illumination intensity of a composite light is 150 lux or more at a distance of 30 cm perpendicularly from the light-emitting surface of the light-emitting part.

Abstract: An illuminating device comprises one or more luminescent devices (1). The luminescent device comprises a semiconductor light emitting element (10) emitting a excitation light having an peak within a wavelength range from 350 nm to 430 nm, and a luminescent part (20) comprising a sealing member (22) and a phosphor (21) absorbing the light from the semiconductor light emitting element (10) and emitting a light with different emission spectrum. For the luminescent device (1), an excitation light contribution degree ?E, an index quantitatively representing what extent of a visible component of the excitation light is involved in color mixing of a combined light of the luminescent device (1), is 0.005 or less, and a mean color rendering index Ra is 70 or more.

Abstract: Waste developer used for the development of pigment-containing non-silver-salt photosensitive materials is disposed of by filtering through a filter which does not allow pigment particles to pass through and allows the waste developer solution to be treated to flow horizontally to the surface of the filter membrane. The solution which passed through the fiber membrane is reused as a developer. This process greatly decreases discharge of waste developer allows a long-time stabilized continuous developing process.

Abstract: Disclosed is a light-sensitive litho printing plate requiring no dampening water having a primer layer, a light-sensitive layer and a silicone rubber layer in this order on a support, characterized in that the above primer layer contains (1) an ethylenic unsaturated compound having a polymerizable unsaturated group and (2) a photopolymerization initiator, and has a tensile strength of 10 Kg/cm.sup.2 or more and a Vickers hardness of 70 or less.

Abstract: Disclosed is a light-sensitive litho printing plate comprising:a support, a light-sensitive layer and a silicone rubber layer provided thereon,wherein said light-sensitive layer contains a substance,whereby said substance forms a color during developing or after developing.