1. A display device for vehicles comprising:
at least one display, which provides system information that is to be displayed to a user;
a partially reflecting combiner, which magnifies the system information from the display, and provides an active primary virtual image of said display; and
at least one fluidic lens located between the at least one display and said partially reflecting combiner, to provide the active primary virtual image.
2. A display device according to claim 1 wherein the partially reflecting combiner is a negative meniscus lens.
3. A display device according to claim 1, further comprising:
a beam splitter located between the fluidic lens and the partially reflective combiner and
a second display, that provides a secondary virtual image.
4. A display device according to claim 3, further comprising a further fluidic lens located between the second display and said beam splitter, to provide an active secondary virtual image.
5. A display device according to claim 3 wherein the secondary virtual image is selected to provide warning or danger information which appears in front of the active primary virtual image.
6. A display device according to claim 3 wherein the secondary virtual image and active primary virtual image are separated by a distance in the range of from 200 mm to 600 mm.
7. A display device according to claim 1 wherein the display includes a liquid crystal on silicon (LCOS) device, illuminated by narrowband red, green and blue LED sources.
8. A method of providing navigation to a user of a vehicle in a landscape, the method comprising:
displaying, from a display device, an image of at least one indicator in a head-up display of said vehicle, the image generated from system information of the vehicle, said indicator being superimposed as a virtual image over a feature in said landscape to provide direction to the user, in such a way that the indicator appears to be a real object existing at said feature in the landscape, wherein a fluidic lens within said display device provides the indicator at the same distance as said feature.
9. A method according to claim 8 further comprising:
determining a route for the vehicle;
computing data that controls the head-up display in such a way that the indicator appears to the user to be located at a feature on the landscape; and
repeating the computing at successive time intervals in such a way that the indicator appears to the user to be substantially stationary relative to the feature in the landscape even when the vehicle is moving.
10. A method according to claim 9, wherein the indicator changes in appearance as the vehicle approaches the feature in the landscape.
11. A method according to claim 8, wherein the indicator changes in appearance as the vehicle approaches the feature in the landscape.
12. A method according to claim 8, further comprising:
providing, via a second display optically linked via a beam splitter to the first display device, a secondary virtual image.
13. A method according to claim 12, wherein the secondary virtual image is selected to provide warning or danger information.
14. A method according to claim 8, further comprising:
providing, via a second display optically linked via a beam splitter to the first display device and a further fluidic lens located between the second display and said beam splitter, an active secondary virtual image.
15. A method according to claim 8 wherein the display device includes a liquid crystal on silicon (LCOS) device, illuminated by narrowband red, green and blue LED sources.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An aqueous, liquid fabric conditioning composition comprising:
(i) a quaternary ammonium cationic softening compound;
(ii) a nonionic surfactant;
(iii) a perfume having a ClogP of 2 or more; and
(iv) an oily perfume carrier having a ClogP of 3.5 or more;
where the composition comprises an emulsion in which 80% or more by weight of the droplets in the emulsion have a mean diameter of from 0.4 to 60 microns, as measured using a Malvern particle size analyser with a 45 mm lens for D0,1 measurements and both a 45 mm and a 1000 mm lens for D0,9 measurements.
2. A composition according to claim 1 in which the quaternary ammonium cationic softening compound is a compound of the general formula
in which R1 and R2 each independently represent a C8-28 alkyl or alkenyl group; R3 and R4 each independently represent a C1-4 alkyl or C2-4 alkenyl group; and X\u2212 is any anion compatible with the cationic surfactant.
3. A composition according to claim 1 in which the quaternary ammonium cationic softening compound is di(hardened tallow alkyl)dimethyl ammonium chloride.
4. A method of forming an aqueous, liquid fabric conditioning composition comprising:
(i) mixing with heating a quaternary ammonium cationic softening compound and a nonionic surfactant; and
(ii) adding the mixture formed in (i) to water and milling
so as to form a composition.
5. A method of forming an aqueous, liquid fabric conditioning composition comprising:
(i) mixing with heating a quaternary ammonium cationic softening compound and optional ingredients;
(ii) dispersing the mixture in water; and
(iii) adding a nonionic surfactant with mixing
so as to form a composition according to claim 1.
6. A composition according to claim 1, wherein the nonionic surfactant is present at a level of less than about 2.0% by weight, based on the total weight of the composition.
7. A composition according to claim 1, wherein the nonionic surfactant is present at a level of about 0.005% to about 2.0% based on the total weight of the composition.
8. A composition according to claim 1, wherein the nonionic surfactant is an addition product of an alkylene oxide and a fatty alcohol, fatty acid or fatty amine.
9. A composition according to claim 1, wherein the nonionic surfactant is a straight- or branched-chain primary or secondary alcohol alkoxylate, a straight- or branched-chain primary or secondary alkenyl alcohol alkoxylate or an alkyl phenol alkoxylate.
10. A composition according to claim 1, wherein the nonionic surfactant is a straight- or branched-chain primary or secondary alcohol ethoxylate.
11. A composition according to claim 1, wherein the nonionic surfactant is a straight- or branched-chain primary or secondary C11-18 alcohol ethoxylated with an average of 8 to 35 ethoxylate groups.